28 files changed, 1294 insertions, 841 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3343b7e..e7d166a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -79,19 +79,6 @@ endif()
 
 
 CPMAddPackage(
-    NAME imgui
-    GITHUB_REPOSITORY ocornut/imgui
-    VERSION 1.52
-    DOWNLOAD_ONLY TRUE
-)
-if(imgui_ADDED)
-    file(GLOB imgui_sources ${imgui_SOURCE_DIR}/*.cpp)
-    add_library(imgui STATIC ${imgui_sources})
-    target_include_directories(imgui SYSTEM PUBLIC $<BUILD_INTERFACE:${imgui_SOURCE_DIR}>)
-endif()
-
-
-CPMAddPackage(
     NAME SDL2_net
     GITHUB_REPOSITORY libsdl-org/SDL_net
     VERSION 2.0.1
@@ -114,36 +101,30 @@ CPMAddPackage(
     NAME zlib
     GITHUB_REPOSITORY madler/zlib
     VERSION 1.2.11
-    DOWNLOAD_ONLY ON
 )
-if(zlib_ADDED)
-    file(GLOB zlib_sources ${zlib_SOURCE_DIR}/*.c)
-    add_library(zlib STATIC ${zlib_sources})
-
-    include(CheckIncludeFile)
-    check_include_file(unistd.h Z_HAVE_UNISTD_H)
-    if(Z_HAVE_UNISTD_H)
-        target_compile_definitions(zlib PRIVATE Z_HAVE_UNISTD_H)
-    endif()
-
-    if(MSVC)
-        target_compile_definitions(zlib PRIVATE _CRT_SECURE_NO_DEPRECATE _CRT_NONSTDC_NO_DEPRECATE)
-    endif()
-    target_include_directories(zlib PUBLIC ${zlib_SOURCE_DIR})
-endif()
+target_include_directories(zlib PUBLIC ${zlib_SOURCE_DIR})
+target_include_directories(zlib PUBLIC ${zlib_BINARY_DIR})
 
 
 CPMAddPackage(
-    NAME lua
+    NAME Lua
     GITHUB_REPOSITORY lua/lua
     VERSION 5.4.3
     DOWNLOAD_ONLY YES
 )
-if(lua_ADDED)
-    file(GLOB lua_sources ${lua_SOURCE_DIR}/*.c)
-    list(REMOVE_ITEM lua_sources "${lua_SOURCE_DIR}/lua.c" "${lua_SOURCE_DIR}/luac.c" "${lua_SOURCE_DIR}/onelua.c")
-    add_library(lua STATIC ${lua_sources})
-    target_include_directories(lua SYSTEM PUBLIC $<BUILD_INTERFACE:${lua_SOURCE_DIR}>)
+if(Lua_ADDED)
+    file(GLOB Lua_sources ${Lua_SOURCE_DIR}/*.c)
+    list(REMOVE_ITEM Lua_sources "${Lua_SOURCE_DIR}/lua.c" "${Lua_SOURCE_DIR}/luac.c" "${Lua_SOURCE_DIR}/onelua.c")
+    add_library(lua STATIC ${Lua_sources})
+    target_include_directories(lua SYSTEM PUBLIC $<BUILD_INTERFACE:${Lua_SOURCE_DIR}>)
+    install(TARGETS lua
+		EXPORT lua-targets
+		LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+		ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+		RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+	)
+    install(EXPORT lua-targets DESTINATION ${LIB_INSTALL_DIR}/lua_ac/cmake)
+    export(EXPORT lua-targets)
 endif()
 
 
@@ -160,6 +141,28 @@ if(sol2_ADDED)
 endif()
 
 
+CPMAddPackage(
+  NAME Freetype
+  GITHUB_REPOSITORY aseprite/freetype2
+  VERSION 2.10.0
+  GIT_TAG VER-2-10-0
+)
+export(EXPORT freetype-targets)
+
+CPMAddPackage(
+    NAME RmlUi
+    GITHUB_REPOSITORY mikke89/RmlUi
+    VERSION 4.0
+    GIT_TAG 4.0
+    OPTIONS
+    "BUILD_SHARED_LIBS OFF"
+    "BUILD_TESTING OFF"
+    "BUILD_SAMPLES OFF"
+    "BUILD_LUA_BINDINGS ON"
+)
+target_link_libraries(RmlCore freetype lua)
+target_compile_definitions(RmlCore PUBLIC RMLUI_STATIC_LIB)
+
 ###########
 # AltCraft
 ###########
@@ -179,16 +182,17 @@ target_link_libraries(AltCraft
     easyloggingpp
     libglew_static
     nlohmann_json::nlohmann_json
-    imgui
     SDL2
     SDL2main
     SDL2_net
     OptickCore
     zlib
     sol2
+    RmlLua
+    RmlDebugger
 )
 
-set_target_properties(AltCraft SDL2 OptickCore PROPERTIES
+set_target_properties(AltCraft SDL2 OptickCore zlib PROPERTIES
     RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}
 )
 
@@ -198,8 +202,13 @@ set_target_properties(AltCraft PROPERTIES
     CXX_STANDARD_REQUIRED ON
 )
 
+target_include_directories(AltCraft PRIVATE ${RmlUi_SOURCE_DIR}/Include)
+
 set_property(DIRECTORY ${CMAKE_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT AltCraft)
 
+if (MSVC)
+    target_compile_options(AltCraft PRIVATE /bigobj)
+endif()
 if(MSVC AND CMAKE_BUILD_TYPE MATCHES Release)
     set_target_properties(AltCraft PROPERTIES WIN32_EXECUTABLE ON)
 endif()
diff --git a/cwd/assets/altcraft/scripts/init.lua b/cwd/assets/altcraft/scripts/init.lua
index 96b5ec3..790bab0 100644
--- a/cwd/assets/altcraft/scripts/init.lua
+++ b/cwd/assets/altcraft/scripts/init.lua
@@ -9,18 +9,48 @@ local plugin = {
 }
 
 function plugin.onLoad ()
-	print("Loaded AltCraft plugin!")
+	rmlui:LoadFontFace("altcraft/fonts/OpenSans-Regular")
+	local con = rmlui.contexts["default"]
+	local uiMainMenu = con:LoadDocument("altcraft/ui/main-menu")
+	con:LoadDocument("altcraft/ui/hud")
+	con:LoadDocument("altcraft/ui/pause")
+	con:LoadDocument("altcraft/ui/options")
+
+	uiMainMenu:Show()
+	AC.Settings.Load()
+	uiMainMenu:GetElementById("username"):SetAttribute("value", AC.Settings.Read("username","Username"..tostring(math.random(10000))))
+	uiMainMenu:GetElementById("hostname"):SetAttribute("value",AC.Settings.Read("hostname","127.0.0.1"))
 end
 
 function plugin.onChangeState (newState)
-	AC.LogWarning("New state: "..newState)
+	local toHide = {}
+	local toShow = {}
+
+	for i,doc in ipairs(rmlui.contexts["default"].documents) do
+		if doc.title == newState then
+			toShow[#toShow+1]=doc
+		else
+			toHide[#toHide+1]=doc
+		end
+    end
+
+	for i,doc in ipairs(toHide) do
+		doc:Hide()
+	end
+
+	for i,doc in ipairs(toShow) do
+		doc:Show()
+	end
 end
 
 function plugin.onUnload ()
 	AC.LogInfo("AC Core unloaded")
 end
 
+require("altcraft/ui")
+
 function plugin.onTick (deltaTime)
+	UpdateUi()
 	if AC.GetGameState() and AC.GetGameState():GetPlayer() and AC.GetGameState():GetTimeStatus().worldAge > 0 then
 		-- local player = AC.GetGameState():GetPlayer()
 		-- player.pos.x = player.pos.x + deltaTime * 0.5
diff --git a/cwd/assets/altcraft/scripts/ui.lua b/cwd/assets/altcraft/scripts/ui.lua
new file mode 100644
index 0000000..392ad27
--- /dev/null
+++ b/cwd/assets/altcraft/scripts/ui.lua
@@ -0,0 +1,171 @@
+local options = {
+	brightness = 0.2,
+	flight = false,
+	mouseSensetivity = 0.1,
+	renderDistance = 2,
+	resolutionScale = 1.0,
+	targetFps = 60,
+	vsync = false,
+	wireframe = false
+}
+
+function OpenOptions(doc)
+    optionsReturnDocument = doc
+    local optionsDoc = {}
+    for i,d in ipairs(rmlui.contexts["default"].documents) do
+        if d.title == "Options" then
+			optionsDoc = d
+		end
+    end
+    doc:Hide()
+    optionsDoc:Show()
+	optionsDoc.style["background-color"] = doc.style["background-color"]
+end
+
+function CloseOptions(doc)
+	for i, v in pairs(options) do
+		local input = doc:GetElementById(i)
+		if type(v) == "number" then
+			local val = input:GetAttribute("value")
+			if i == "targetFps" and val == 301 then
+				AC.Settings.WriteDouble(i, 10000)
+			else
+				AC.Settings.WriteDouble(i, tonumber(val))
+			end
+		elseif type(v) == "boolean" then
+			local val = input:HasAttribute("checked")
+			AC.Settings.WriteBool(i, val)
+		end
+	end
+	AC.Settings.Save()
+	AC.SettingsUpdate()
+
+    optionsReturnDocument:Show()
+    doc:Hide()
+end
+
+function ConnectToServer(doc)
+	AC.Settings.Write('hostname',doc:GetElementById('hostname'):GetAttribute('value'))
+    AC.Settings.Write('username',doc:GetElementById('username'):GetAttribute('value'))
+    AC.Settings.Save()
+    AC.ConnectToServer(
+		doc:GetElementById('hostname'):GetAttribute('value'),
+		doc:GetElementById('username'):GetAttribute('value'))
+end
+
+function OptionsDefaultHandler(event)
+	local input = event.current_element.previous_sibling
+	local id = input:GetAttribute("id")
+	if input:GetAttribute("type") == "checkbox" then
+		if options[id] then
+			input:SetAttribute("checked", "")
+		else
+			input:RemoveAttribute("checked")
+		end
+	else
+		input:SetAttribute("value", options[id])
+	end
+end
+
+local lastFps = {}
+
+local function UpdateFps(newFps)
+	lastFps[#lastFps + 1] = newFps
+	if #lastFps >= 100 then
+		table.remove(lastFps, 1)
+	end
+	local smoothFps = 0
+	for i,v in ipairs(lastFps) do
+		smoothFps = smoothFps + v
+	end
+	smoothFps = smoothFps / #lastFps
+	return smoothFps
+end
+
+function UpdateUi()
+	local doc = {}
+	local uiDoc = {}
+	for i,d in ipairs(rmlui.contexts["default"].documents) do
+		if d.title == "Playing" then
+			doc = d
+		elseif d.title == "Options" then
+			uiDoc = d
+		end
+    end
+
+	if AC.GetGameState() and AC.GetGameState():GetPlayer() and AC.GetGameState():GetTimeStatus().worldAge > 0 then
+		local time = AC.GetTime()
+		local rawFps = 1.0 / time:GetRealDeltaS()
+		local smoothFps = UpdateFps(rawFps)
+		doc:GetElementById('dbg-fps').inner_rml = string.format("%.1f", smoothFps)
+
+		local playerEnt = AC.GetGameState():GetPlayer()				
+		doc:GetElementById('dbg-pos').inner_rml = string.format("%.1f %.1f %.1f", playerEnt.pos.x, playerEnt.pos.y, playerEnt.pos.z)
+
+		local wrld = AC.GetGameState():GetWorld()
+		local selection = AC.GetGameState():GetSelectionStatus()
+		if selection.isBlockSelected then
+			bid = wrld:GetBlockId(selection.selectedBlock)
+			doc:GetElementById('dbg-select-pos').inner_rml = tostring(selection.selectedBlock)
+			doc:GetElementById('dbg-select-bid').inner_rml = string.format("%d:%d", bid.id, bid.state)
+		else
+			doc:GetElementById('dbg-select-pos').inner_rml = ""
+			doc:GetElementById('dbg-select-bid').inner_rml = ""
+		end
+
+		local player = AC.GetGameState():GetPlayerStatus()
+		local playerHp = string.format("%.0f", player.health)
+		doc:GetElementById('status-hp').inner_rml = playerHp
+		doc:GetElementById('status-hp-bar'):SetAttribute("value", playerHp)
+	end
+
+
+	local uiInit = optionsListenersAdded == nil
+	if uiInit then
+	AC.Settings.Load()
+	end
+
+	for i,v in pairs(options) do
+		local input = uiDoc:GetElementById(i)
+		local span = input.next_sibling
+
+		if uiInit then
+			span:AddEventListener("click", OptionsDefaultHandler, true)
+
+			if type(v) == "number" then
+				local val = AC.Settings.ReadDouble(i, v)
+				input:SetAttribute("value", tostring(val))
+			elseif type(v) == "boolean" then
+				local val = AC.Settings.ReadBool(i, v)
+				if val then
+					input:SetAttribute("checked", "")
+				else
+					input:RemoveAttribute("checked")
+				end
+			end
+		end
+
+		if type(v) == "number" then
+			local val = input:GetAttribute("value")
+			if v == math.floor(v) and i ~= "resolutionScale" then
+				span.inner_rml = string.format("%d (%d)", math.floor(val), v)
+				if i == "targetFps" and val == 301 then
+					span.inner_rml = string.format("∞ (%d)",  v)
+				end
+			else
+				span.inner_rml = string.format("%.2f (%.2f)", val, v)
+			end
+		elseif type(v) == "boolean" then
+			if v then
+				span.inner_rml = "(on)"
+			else
+				span.inner_rml = "(off)"
+			end
+		end
+	end
+
+	if uiInit == true then
+		optionsListenersAdded = true
+		AC.SettingsUpdate()
+	end
+end
diff --git a/cwd/assets/altcraft/shaders/frag/rml.fs b/cwd/assets/altcraft/shaders/frag/rml.fs
new file mode 100644
index 0000000..54c3f36
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/rml.fs
@@ -0,0 +1,12 @@
+#version 330 core
+
+in VS_OUT {
+    vec4 color;
+    vec2 tex_coord;
+} fs_in;
+
+out vec4 fragColor;
+
+void main() {
+    fragColor = fs_in.color;
+}
diff --git a/cwd/assets/altcraft/shaders/frag/rmltex.fs b/cwd/assets/altcraft/shaders/frag/rmltex.fs
new file mode 100644
index 0000000..d885b3b
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/rmltex.fs
@@ -0,0 +1,14 @@
+#version 330 core
+
+uniform sampler2D fontTexture;
+
+in VS_OUT {
+    vec4 color;
+    vec2 tex_coord;
+} fs_in;
+
+out vec4 fragColor;
+
+void main() {
+    fragColor = fs_in.color * texture(fontTexture, fs_in.tex_coord);
+}
diff --git a/cwd/assets/altcraft/shaders/rml.json b/cwd/assets/altcraft/shaders/rml.json
new file mode 100644
index 0000000..0cd85cc
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/rml.json
@@ -0,0 +1,8 @@
+{
+  "vert": "/altcraft/shaders/vert/rml",
+  "frag": "/altcraft/shaders/frag/rml",
+  "uniforms": [
+    "translation",
+    "viewportSize"
+  ]
+}
\ No newline at end of file
diff --git a/cwd/assets/altcraft/shaders/rmltex.json b/cwd/assets/altcraft/shaders/rmltex.json
new file mode 100644
index 0000000..a8a1323
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/rmltex.json
@@ -0,0 +1,9 @@
+{
+  "vert": "/altcraft/shaders/vert/rml",
+  "frag": "/altcraft/shaders/frag/rmltex",
+  "uniforms": [
+    "translation",
+    "viewportSize",
+    "fontTexture"
+  ]
+}
\ No newline at end of file
diff --git a/cwd/assets/altcraft/shaders/vert/rml.vs b/cwd/assets/altcraft/shaders/vert/rml.vs
new file mode 100644
index 0000000..bdd3b71
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/vert/rml.vs
@@ -0,0 +1,22 @@
+#version 330 core
+
+uniform uvec2 viewportSize;
+uniform vec2 translation;
+uniform mat4 rotationMat;
+
+layout (location = 0) in vec2 pos;
+layout (location = 1) in uvec4 color;
+layout (location = 2) in vec2 tex_coord;
+
+out VS_OUT {
+    vec4 color;
+    vec2 tex_coord;
+} vs_out;
+
+void main() {
+    float x = ((pos.x + translation.x) / viewportSize.x) * 2.0f - 1.0f;
+    float y = ((pos.y + translation.y) / viewportSize.y) * 2.0f - 1.0f;
+    gl_Position = vec4(x, -y, -1.0f, 1.0f);
+    vs_out.color = vec4(float(color.x) / 255.0f, float(color.y) / 255.0f, float(color.z) / 255.0f, float(color.w) / 255.0f);
+    vs_out.tex_coord = tex_coord;
+}
diff --git a/cwd/assets/altcraft/ui/hud-styles.rcss b/cwd/assets/altcraft/ui/hud-styles.rcss
new file mode 100644
index 0000000..61f4147
--- /dev/null
+++ b/cwd/assets/altcraft/ui/hud-styles.rcss
@@ -0,0 +1,56 @@
+.body-hud {
+    
+}
+
+.dbg-hud {
+    background-color: #00000055;
+    border-color: black;
+    border-width: 2dp;
+    font-size: 20dp;
+    color: white;
+    padding: 3dp;
+    text-align: left;
+    margin: 3dp auto auto 3dp;
+    position: fixed;
+}
+
+p {
+    display: block;
+}
+
+span {
+    display: inline-block;
+}
+
+.status-hud {
+    background-color: #00000055;
+    border-color: black;
+    border-width: 2dp;
+    font-size: 20dp;
+    color: white;
+    padding: 2dp;
+    margin: 10dp;
+    text-align: center;
+    bottom: 0;
+    position: fixed;
+}
+
+#status-hp-bar {
+    background-color: maroon;
+    border-color: black;
+    margin-left: 5dp;
+    width: 200dp;
+    height: 10dp;
+}
+
+#status-hp-bar fill {
+    background-color: red;
+}
+
+.crosshair-hud {
+    display: table-cell;
+    color: white;
+    font-size: 50dp;
+    text-align: center;
+    vertical-align: middle;
+}
\ No newline at end of file
diff --git a/cwd/assets/altcraft/ui/hud.rml b/cwd/assets/altcraft/ui/hud.rml
new file mode 100644
index 0000000..cbf5c86
--- /dev/null
+++ b/cwd/assets/altcraft/ui/hud.rml
@@ -0,0 +1,21 @@
+<rml>
+    <head>
+        <link type="text/rcss" href="mc-styles" />
+        <link type="text/rcss" href="hud-styles" />
+        <title>Playing</title>
+    </head>
+    <body class="body-hud">
+        <div class="dbg-hud">
+            <p>FPS: <span id="dbg-fps">∞?</span></p>
+            <p>Pos: <span id="dbg-pos">∞?</span></p>
+            <p>Select pos: <span id="dbg-select-pos">∞?</span></p>
+            <p>Select block: <span id="dbg-select-bid">∞?</span></p>
+        </div>
+        <div class="status-hud">
+            <p>HP: <span id="status-hp">∞?</span> <progress value="15" max="20" id="status-hp-bar" /> </p>
+        </div>
+        <div style="display: table; width:100%; height: 100%;">
+            <div class="crosshair-hud">+</div>
+        </div>
+    </body>
+</rml>
diff --git a/cwd/assets/altcraft/ui/main-menu-styles.rcss b/cwd/assets/altcraft/ui/main-menu-styles.rcss
new file mode 100644
index 0000000..8b8b9fb
--- /dev/null
+++ b/cwd/assets/altcraft/ui/main-menu-styles.rcss
@@ -0,0 +1,59 @@
+#body-main-menu {
+    background-color: #160f08;
+    color: white;
+}
+
+#title {
+    margin: 0% auto auto;
+    font-size: 20vh;
+}
+
+#disclaimer {
+    width: 70%;
+    margin: 0 auto;
+}
+
+#hostname-text {
+    width: 70%;
+    margin: 5% auto;
+}
+
+#hostname {
+    display: inline-block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 0% auto auto;
+}
+
+#username {
+    display: inline-block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 10% auto auto;
+}
+
+#connect {
+    display: inline-block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 20% auto auto;
+}
+
+#options {
+    display: inline-block;
+    width: 22%;
+    height: 8%;
+    position: fixed;
+    margin: 33% auto auto 27.5%;
+}
+
+#exit {
+    display: inline-block;
+    width: 22%;
+    height: 8%;
+    position: fixed;
+    margin: 33% 27.5% auto auto;
+}
diff --git a/cwd/assets/altcraft/ui/main-menu.rml b/cwd/assets/altcraft/ui/main-menu.rml
new file mode 100644
index 0000000..c5d405d
--- /dev/null
+++ b/cwd/assets/altcraft/ui/main-menu.rml
@@ -0,0 +1,18 @@
+<rml>
+    <head>
+        <link type="text/rcss" href="mc-styles" />
+        <link type="text/rcss" href="main-menu-styles" />
+        <title>MainMenu</title>
+        <script src="/altcraft/scripts/ui"></script>
+    </head>
+    <body id="body-main-menu">
+        <strong class="mc-title" id="title">AltCraft</strong>
+        <p class="mc-p" id="disclaimer">AltCraft is currently not finished, but there is some buggy early testing going on.</p>
+        <p class="mc-p" id="hostname-text">Enter the hostname of a server and your username to connect to it:</p>
+        <input class="mc-text" id="hostname" value="127.0.0.1:25565"/>
+        <input class="mc-text" id="username"/>
+        <button class="mc-button" id="connect" onclick="ConnectToServer(document)">Connect</button>
+        <button type="button" class="mc-button" id="options" onclick="OpenOptions(document)">Options...</button>
+        <button class="mc-button" id="exit" onclick="AC.Exit()">Quit game</button>
+    </body>
+</rmL>
diff --git a/cwd/assets/altcraft/ui/mc-styles.rcss b/cwd/assets/altcraft/ui/mc-styles.rcss
new file mode 100644
index 0000000..3549180
--- /dev/null
+++ b/cwd/assets/altcraft/ui/mc-styles.rcss
@@ -0,0 +1,48 @@
+body {
+    font-family: "open sans";
+    width: 100%;
+    height: 100%;
+    text-align: center;
+}
+
+.mc-title {
+    color: #8e8e8e;
+    display: block;
+}
+
+.mc-p {
+    color: #d6d4d6;
+    display: block;
+    text-align: left;
+    font-size: 4vh;
+}
+
+.mc-text {
+    border-width: 2dp;
+    border-color: #9f9793;
+    background-color: #010001;
+    color: #d6d4d6;
+    text-align: center;
+    vertical-align: middle;
+    font-size: 5vh;
+}
+
+.mc-button {
+    border-width: 2dp;
+    border-color: #14110c;
+    background-color: #6e6f70;
+    color: #c5c6c7;
+    text-align: center;
+    vertical-align: middle;
+    font-size: 5vh;
+}
+
+.mc-button:hover {
+    background-color: #7e86bc;
+    color: #cfd69d;
+}
+
+.mc-button:disabled {
+    background-color: #2b2b2b;
+    color: #848484;
+}
diff --git a/cwd/assets/altcraft/ui/options-styles.rcss b/cwd/assets/altcraft/ui/options-styles.rcss
new file mode 100644
index 0000000..fbfc685
--- /dev/null
+++ b/cwd/assets/altcraft/ui/options-styles.rcss
@@ -0,0 +1,84 @@
+.body-options {
+    background-color: transparent;
+}
+
+form {
+    width: 70%;
+    display: block;
+    margin: 5% auto;
+    background-color: #211710;
+}
+
+.option {
+    display: block;
+    background-color: #0f0b07;
+    margin: 1vh;
+    padding: 0.5vh;
+    font-size: 4vh;
+    text-align: center;
+}
+
+label {
+    
+}
+
+span {
+    
+}
+
+span:hover {
+    color: #cfd69d;
+}
+
+input {
+    background-color: #2c2c2c;
+    height: 4vh;
+    margin-right: 1vh;
+    margin-left: 1vh;
+}
+
+input.checkbox {
+    border-width: 1vh;
+    border-color: #2c2c2c;
+}
+
+input.checkbox:checked {
+    background-color: #dcdadc;
+}
+
+input.checkbox:hover {
+    border-color: #6a6b70;
+}
+
+input.range:hover {
+    background-color: #6a6b70;
+}
+
+input.range sliderbar {
+    width: 3vh;
+	background-color: #9c9c9c;
+}
+
+input.range:hover sliderbar {
+	background-color: #e9e7e8;
+}
+
+input.range sliderbar:active {
+	background-color: #cfd69d;
+}
+
+input.range sliderarrowdec {
+    display: none;
+}
+
+input.range sliderarrowinc {
+	display: none;
+}
+
+#done {
+    display: block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 5% auto auto;
+}
diff --git a/cwd/assets/altcraft/ui/options.rml b/cwd/assets/altcraft/ui/options.rml
new file mode 100644
index 0000000..485dcba
--- /dev/null
+++ b/cwd/assets/altcraft/ui/options.rml
@@ -0,0 +1,61 @@
+<rml>
+    <head>
+        <link type="text/rcss" href="mc-styles" />
+        <link type="text/rcss" href="options-styles" />
+        <script src="/altcraft/scripts/ui"></script>
+        <title>Options</title>
+    </head>
+    <body class="body-options">
+        <form>
+            <div class="option">
+                <label>Brightness</label>
+                <input type="range" min="0.0" max="1.0" step="0.01" id="brightness" />
+                <span id="brightness-val"></span>
+            </div>
+
+            <div class="option">
+                <label>Flight</label>
+                <input type="checkbox" id="flight" />
+                <span id="flight-val"></span>
+            </div>
+            
+            <div class="option">
+                <label>Mouse sensetivity</label>
+                <input type="range" min="0.05" max="0.8" step="0.01" id="mouseSensetivity" />
+                <span id="mouseSensetivity-val"></span>
+            </div>
+
+            <div class="option">
+                <label>Render distance</label>
+                <input type="range" min="2" max="16" step="1" id="renderDistance" />
+                <span id="renderDistance-val"></span>
+            </div>
+            
+            <div class="option">
+                <label>Resolution scale</label>
+                <input type="range" min="0.1" max="4.0" step="0.05" id="resolutionScale" />
+                <span id="resolutionScale-val"></span>
+            </div>
+            
+            <div class="option">
+                <label>Fps limit</label>
+                <input type="range" min="15" max="301" step="1" id="targetFps" />
+                <span id="targetFps-val"></span>
+            </div>
+            
+            <div class="option">
+                <label>VSync</label>
+                <input type="checkbox" id="vsync" />
+                <span id="vsync-val"></span>
+            </div>
+            
+            <div class="option">
+                <label>Wireframe rendering</label>
+                <input type="checkbox" id="wireframe" />
+                <span id="wireframe-val"></span>
+            </div>
+            
+        </form>
+        <button class="mc-button" id="done" onclick="CloseOptions(document)">Done</button>
+    </body>
+</rml>
diff --git a/cwd/assets/altcraft/ui/pause-styles.rcss b/cwd/assets/altcraft/ui/pause-styles.rcss
new file mode 100644
index 0000000..e8e5a08
--- /dev/null
+++ b/cwd/assets/altcraft/ui/pause-styles.rcss
@@ -0,0 +1,43 @@
+.body-pause {
+    background-color: #000000AA;
+}
+
+#continue {
+    display: inline-block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 20% auto auto;
+}
+
+#advancements {
+    display: inline-block;
+    width: 22%;
+    height: 8%;
+    position: fixed;
+    margin: 30% auto auto 27.5%;
+}
+
+#statistics {
+    display: inline-block;
+    width: 22%;
+    height: 8%;
+    position: fixed;
+    margin: 30% 27.5% auto auto;
+}
+
+#options {
+    display: inline-block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 43% auto auto;
+}
+
+#disconnect {
+    display: inline-block;
+    width: 45%;
+    height: 8%;
+    position: fixed;
+    margin: 53% auto auto;
+}
diff --git a/cwd/assets/altcraft/ui/pause.rml b/cwd/assets/altcraft/ui/pause.rml
new file mode 100644
index 0000000..5d652f9
--- /dev/null
+++ b/cwd/assets/altcraft/ui/pause.rml
@@ -0,0 +1,16 @@
+<rml>
+    <head>
+        <link type="text/rcss" href="mc-styles" />
+        <link type="text/rcss" href="pause-styles" />
+        <script src="/altcraft/scripts/ui"></script>
+        <title>Paused</title>
+    </head>
+    <body class="body-pause">
+        Press ESC to unpause
+        <button class="mc-button" onclick="AC.SetStatePlaying()" id="continue">Back to Game</button>
+        <input disabled type="button" class="mc-button" onclick="" id="advancements">Advancements</input>
+        <input disabled type="button" class="mc-button" onclick="" id="statistics">Statistics</input>
+        <button class="mc-button" onclick="OpenOptions(document)" id="options">Options...</button>
+        <button class="mc-button" onclick="AC.Disconnect()" id="disconnect">Disconnect</button>
+    </body>
+</rml>
diff --git a/src/AssetManager.cpp b/src/AssetManager.cpp
index 514d008..7bcfaae 100644
--- a/src/AssetManager.cpp
+++ b/src/AssetManager.cpp
@@ -64,6 +64,9 @@ void AssetManager::InitAssetManager()
 	ParseBlockModels();
 
 	PluginSystem::Init();
+}
+
+void AssetManager::InitPostRml() {
 	LoadScripts();
 }
 
@@ -402,22 +405,26 @@ void ParseAssetShader(AssetTreeNode &node) {
 		std::string vertPath = j["vert"].get<std::string>();
 		std::string fragPath = j["frag"].get<std::string>();
 
-		AssetTreeNode *vertAsset = AssetManager::GetAssetByAssetName(vertPath);
-		AssetTreeNode *fragAsset = AssetManager::GetAssetByAssetName(fragPath);
+		AssetTreeNode* vertAsset = AssetManager::GetAssetByAssetName(vertPath);
+		AssetTreeNode* fragAsset = AssetManager::GetAssetByAssetName(fragPath);
 		std::string vertSource((char*)vertAsset->data.data(), (char*)vertAsset->data.data() + vertAsset->data.size());
 		std::string fragSource((char*)fragAsset->data.data(), (char*)fragAsset->data.data() + fragAsset->data.size());
 
 		std::vector<std::string> uniforms;
 
-		for (auto &it : j["uniforms"]) {
+		for (auto& it : j["uniforms"]) {
 			uniforms.push_back(it.get<std::string>());
 		}
 
 		node.asset = std::make_unique<AssetShader>();
-		AssetShader *asset = dynamic_cast<AssetShader*>(node.asset.get());
+		AssetShader* asset = dynamic_cast<AssetShader*>(node.asset.get());
 		asset->shader = std::make_unique<Shader>(vertSource, fragSource, uniforms);
+	} catch (std::exception &e) {
+		glCheckError();
+		LOG(ERROR) << "Shader asset parsing failed: " << e.what();
 	} catch (...) {
 		glCheckError();
+		LOG(ERROR) << "Shader asset parsing failed with unknown reason";
 		return;
 	}
 }
@@ -426,8 +433,6 @@ void ParseAssetScript(AssetTreeNode &node) {
 	node.asset = std::make_unique<AssetScript>();
 	AssetScript *asset = dynamic_cast<AssetScript*>(node.asset.get());
 	asset->code = std::string((char*)node.data.data(), (char*)node.data.data() + node.data.size());
-	node.data.clear();
-	node.data.shrink_to_fit();
 }
 
 void ParseBlockModels() {
diff --git a/src/AssetManager.hpp b/src/AssetManager.hpp
index bf948b3..b67d920 100644
--- a/src/AssetManager.hpp
+++ b/src/AssetManager.hpp
@@ -174,6 +174,8 @@ struct AssetScript : Asset {
 namespace AssetManager {
 	void InitAssetManager();
 
+	void InitPostRml();
+
 	BlockFaces &GetBlockModelByBlockId(BlockId block);
 
     std::string GetAssetNameByBlockId(BlockId block);
diff --git a/src/Plugin.cpp b/src/Plugin.cpp
index 83e9bdd..5134aa6 100644
--- a/src/Plugin.cpp
+++ b/src/Plugin.cpp
@@ -10,6 +10,7 @@
 #include "Game.hpp"
 #include "Event.hpp"
 #include "AssetManager.hpp"
+#include "Settings.hpp"
 
 
 struct Plugin {
@@ -42,8 +43,8 @@ namespace PluginApi {
 				plugin["onRequestBlockInfo"].get_or(std::function<BlockInfo(Vector)>()),
 		};
 		plugins.push_back(nativePlugin);
+		LOG(INFO)<<"Loading plugin " << (!nativePlugin.displayName.empty() ? nativePlugin.displayName : nativePlugin.name);
 		nativePlugin.onLoad();
-		
 		LOG(INFO) << "Loaded plugin " << (!nativePlugin.displayName.empty() ? nativePlugin.displayName : nativePlugin.name);
 	}
 
@@ -74,6 +75,39 @@ namespace PluginApi {
 	void RegisterDimension(int dimId, Dimension dim) {
 		RegisterNewDimension(dimId, dim);
 	}
+
+	void ConnectToServer(std::string host, std::string username) {
+		size_t index = host.find_last_of(':');
+		unsigned short port;
+		if (index == std::string::npos)
+			port = 25565;
+		else {
+			try {
+				port = std::stoi(host.substr(index + 1));
+			}
+			catch (std::exception& e) {
+				port = 25565;
+				LOG(WARNING) << "Incorrect host format: " << host;
+			}
+		}
+		PUSH_EVENT("ConnectToServer", std::make_tuple(host.substr(0, index), port, username));
+	}
+
+	void Exit() {
+		PUSH_EVENT("Exit", 0);
+	}
+
+	void Disconnect() {
+		PUSH_EVENT("Disconnect", std::string("Disconnected by user"));
+	}
+
+	void SetStatePlaying() {
+		SetState(State::Playing);
+	}
+
+	void SettingsUpdate() {
+		PUSH_EVENT("SettingsUpdate", 0);
+	}
 }
 
 int LoadFileRequire(lua_State* L) {
@@ -203,7 +237,13 @@ void PluginSystem::Init() {
 		"name", &Dimension::name,
 		"skylight", &Dimension::skylight);
 
+	lua.new_usertype<LoopExecutionTimeController>("LoopExecutionTimeController",
+		"GetIterations", &LoopExecutionTimeController::GetIterations,
+		"GetDeltaS", &LoopExecutionTimeController::GetDeltaS,
+		"GetRealDeltaS", &LoopExecutionTimeController::GetRealDeltaS);
+
 	sol::table apiTable = lua["AC"].get_or_create<sol::table>();
+	sol::table apiSettings = lua["AC"]["Settings"].get_or_create<sol::table>();
 
 	apiTable["RegisterPlugin"] = PluginApi::RegisterPlugin;
 	apiTable["LogWarning"] = PluginApi::LogWarning;
@@ -212,6 +252,26 @@ void PluginSystem::Init() {
 	apiTable["GetGameState"] = PluginApi::GetGameState;
 	apiTable["RegisterBlock"] = PluginApi::RegisterBlock;
 	apiTable["RegisterDimension"] = PluginApi::RegisterDimension;
+	apiTable["ConnectToServer"] = PluginApi::ConnectToServer;
+	apiTable["Exit"] = PluginApi::Exit;
+	apiTable["Disconnect"] = PluginApi::Disconnect;
+	apiTable["SetStatePlaying"] = PluginApi::SetStatePlaying;
+	apiSettings["Load"] = Settings::Load;
+	apiSettings["Save"] = Settings::Save;
+	apiSettings["Read"] = Settings::Read;
+	apiSettings["Write"] = Settings::Write;
+	apiSettings["ReadBool"] = Settings::ReadBool;
+	apiSettings["WriteBool"] = Settings::WriteBool;
+	apiSettings["ReaIntd"] = Settings::ReadInt;
+	apiSettings["WriteInt"] = Settings::WriteInt;
+	apiSettings["ReadDouble"] = Settings::ReadDouble;
+	apiSettings["WriteDouble"] = Settings::WriteDouble;
+	apiTable["SettingsUpdate"] = PluginApi::SettingsUpdate;
+	apiTable["GetTime"] = GetTime;
+}
+
+lua_State* PluginSystem::GetLuaState() {
+	return lua.lua_state();
 }
 
 void PluginSystem::Execute(const std::string &luaCode, bool except) {
diff --git a/src/Plugin.hpp b/src/Plugin.hpp
index a849f5c..7af27a4 100644
--- a/src/Plugin.hpp
+++ b/src/Plugin.hpp
@@ -5,10 +5,13 @@
 #include "Vector.hpp"
 
 class BlockInfo;
+struct lua_State;
 
 namespace PluginSystem {
 	void Init();
 
+	lua_State* GetLuaState();
+
 	void Execute(const std::string &luaCode, bool except = false);
 
 	void CallOnChangeState(std::string newState);
diff --git a/src/Render.cpp b/src/Render.cpp
index d583205..bee8ffb 100644
--- a/src/Render.cpp
+++ b/src/Render.cpp
@@ -1,10 +1,10 @@
 #include "Render.hpp"
 
-#include <imgui.h>
 #include <easylogging++.h>
 #include <optick.h>
+#include <RmlUi/Core.h>
+#include <RmlUi/Lua.h>
 
-#include "imgui_impl_sdl_gl3.h"
 #include "Shader.hpp"
 #include "AssetManager.hpp"
 #include "Event.hpp"
@@ -16,6 +16,37 @@
 #include "Settings.hpp"
 #include "Framebuffer.hpp"
 #include "Plugin.hpp"
+#include "Rml.hpp"
+
+const std::map<SDL_Keycode, Rml::Input::KeyIdentifier> keyMapping = {
+    {SDLK_BACKSPACE, Rml::Input::KI_BACK},
+    {SDLK_INSERT, Rml::Input::KI_INSERT},
+    {SDLK_DELETE, Rml::Input::KI_DELETE},
+    {SDLK_HOME, Rml::Input::KI_HOME},
+    {SDLK_END, Rml::Input::KI_END},
+    {SDLK_LEFT, Rml::Input::KI_LEFT},
+    {SDLK_RIGHT, Rml::Input::KI_RIGHT},
+    {SDLK_UP, Rml::Input::KI_UP},
+    {SDLK_DOWN, Rml::Input::KI_DOWN},
+    {SDLK_TAB, Rml::Input::KI_TAB}
+};
+
+inline int ConvertKeymodsSdlToRml(unsigned short keyMods) {
+    int ret = 0;
+    if (keyMods & KMOD_SHIFT)
+        ret |= Rml::Input::KM_SHIFT;
+    if (keyMods & KMOD_CTRL)
+        ret |= Rml::Input::KM_CTRL;
+    if (keyMods & KMOD_ALT)
+        ret |= Rml::Input::KM_ALT;
+    if (keyMods & KMOD_GUI)
+        ret |= Rml::Input::KM_META;
+    if (keyMods & KMOD_NUM)
+        ret |= Rml::Input::KM_NUMLOCK;
+    if (keyMods & KMOD_CAPS)
+        ret |= Rml::Input::KM_CAPSLOCK;
+    return ret;
+}
 
 Render::Render(unsigned int windowWidth, unsigned int windowHeight,
                std::string windowTitle) {
@@ -31,52 +62,23 @@ Render::Render(unsigned int windowWidth, unsigned int windowHeight,
 	glCheckError();
     PrepareToRendering();
     glCheckError();
+    InitRml();
+    glCheckError();
+    AssetManager::InitPostRml();
+    glCheckError();
 
-	//Read settings
-	strcpy(fieldUsername, Settings::Read("username", "HelloOne").c_str());
-	strcpy(fieldServerAddr, Settings::Read("serverAddr", "127.0.0.1").c_str());
-	fieldDistance = Settings::ReadDouble("renderDistance", 2.0);
-	fieldTargetFps = Settings::ReadDouble("targetFps", 60.0);
-	fieldSensetivity = Settings::ReadDouble("mouseSensetivity", 0.1);
-	fieldVsync = Settings::ReadBool("vsync", false);
-	fieldWireframe = Settings::ReadBool("wireframe", false);
-	fieldFlight = Settings::ReadBool("flight", false);
-	fieldBrightness = Settings::ReadDouble("brightness", 0.2f);
-	fieldResolutionScale = Settings::ReadDouble("resolutionScale", 1.0f);
-
-	//Apply settings
-	if (fieldSensetivity != sensetivity)
-		sensetivity = fieldSensetivity;
-	isWireframe = fieldWireframe;
-	GetTime()->SetDelayLength(std::chrono::duration<double, std::milli>(1.0 / fieldTargetFps * 1000.0));
-	if (fieldVsync) {
-		GetTime()->SetDelayLength(std::chrono::milliseconds(0));
-		SDL_GL_SetSwapInterval(1);
-	}
-	else
-		SDL_GL_SetSwapInterval(0);
-	framebuffer->Resize(renderState.WindowWidth * fieldResolutionScale, renderState.WindowHeight * fieldResolutionScale);
 
     LOG(INFO) << "Supported threads: " << std::thread::hardware_concurrency();
 }
 
 Render::~Render() {
-	Settings::Write("username", fieldUsername);
-	Settings::Write("serverAddr", fieldServerAddr);
-	Settings::WriteDouble("renderDistance", fieldDistance);
-	Settings::WriteDouble("targetFps", fieldTargetFps);
-	Settings::WriteDouble("mouseSensetivity", fieldSensetivity);
-	Settings::WriteBool("vsync", fieldVsync);
-	Settings::WriteBool("wireframe", fieldWireframe);
-	Settings::WriteBool("flight", fieldFlight);
-	Settings::WriteDouble("brightness", fieldBrightness);
-	Settings::WriteDouble("resolutionScale", fieldResolutionScale);
-	Settings::Save();
+    Rml::RemoveContext("default");
+    rmlRender.reset();
+    rmlSystem.reset();
 
 	PluginSystem::Init();
 
 	framebuffer.reset();
-    ImGui_ImplSdlGL3_Shutdown();
     SDL_GL_DeleteContext(glContext);
     SDL_DestroyWindow(window);
     SDL_Quit();
@@ -123,8 +125,9 @@ void Render::InitGlew() {
     int width, height;
     SDL_GL_GetDrawableSize(window, &width, &height);
     glViewport(0, 0, width, height);
-	glClearColor(0.8,0.8,0.8, 1.0f);
+	glClearColor(0.0f,0.0f,0.0f, 1.0f);
     glEnable(GL_DEPTH_TEST);
+    glDepthFunc(GL_LEQUAL);
 
     glEnable(GL_CULL_FACE);
     glCullFace(GL_BACK);
@@ -143,8 +146,6 @@ void Render::PrepareToRendering() {
 	glActiveTexture(GL_TEXTURE0);
 	glBindTexture(GL_TEXTURE_2D_ARRAY, AssetManager::GetTextureAtlasId());
 
-    ImGui_ImplSdlGL3_Init(window);
-
 	int width, height;
 	SDL_GL_GetDrawableSize(window, &width, &height);
 	framebuffer = std::make_unique<Framebuffer>(width, height, true);
@@ -153,9 +154,6 @@ void Render::PrepareToRendering() {
 }
 
 void Render::UpdateKeyboard() {
-    if (ImGui::GetIO().WantCaptureKeyboard)
-        return;
-
     SDL_Scancode toUpdate[] = { SDL_SCANCODE_A,SDL_SCANCODE_W,SDL_SCANCODE_S,SDL_SCANCODE_D,SDL_SCANCODE_SPACE };
     const Uint8 *kbState = SDL_GetKeyboardState(0);
     for (auto key : toUpdate) {
@@ -201,11 +199,11 @@ void Render::RenderFrame() {
 }
 
 void Render::HandleEvents() {
+    int rmlKeymods = ConvertKeymodsSdlToRml(sdlKeyMods);
+
     SDL_PumpEvents();
     SDL_Event event;
     while (SDL_PollEvent(&event)) {
-        ImGui_ImplSdlGL3_ProcessEvent(&event);
-
         switch (event.type) {
             case SDL_QUIT: {
                 LOG(INFO) << "Received close event by window closing";
@@ -220,7 +218,10 @@ void Render::HandleEvents() {
                         SDL_GL_GetDrawableSize(window, &width, &height);
                         renderState.WindowWidth = width;
                         renderState.WindowHeight = height;
-						framebuffer->Resize(width * fieldResolutionScale, height * fieldResolutionScale);
+                        rmlRender->Update(width, height);
+                        rmlContext->SetDimensions(Rml::Vector2i(width, height));
+                        double resolutionScale = Settings::ReadDouble("resolutionScale", 1.0f);
+						framebuffer->Resize(width * resolutionScale, height * resolutionScale);
 						Framebuffer::GetDefault().Resize(width, height);
                         break;
                     }
@@ -245,6 +246,13 @@ void Render::HandleEvents() {
             }
 
             case SDL_KEYDOWN: {
+                sdlKeyMods = event.key.keysym.mod;
+                rmlKeymods = ConvertKeymodsSdlToRml(sdlKeyMods);
+
+                auto it = keyMapping.find(event.key.keysym.sym);
+                Rml::Input::KeyIdentifier ki = it != keyMapping.end() ? it->second : Rml::Input::KeyIdentifier::KI_UNKNOWN;
+                rmlContext->ProcessKeyDown(ki, rmlKeymods);
+
                 switch (event.key.keysym.scancode) {
                     case SDL_SCANCODE_ESCAPE: {
                         auto state = GetState();
@@ -275,15 +283,13 @@ void Render::HandleEvents() {
 
                     case SDL_SCANCODE_SLASH:
                     case SDL_SCANCODE_T: {
-                        if (!ImGui::GetIO().WantCaptureKeyboard) {
-                            auto state = GetState();
-                            if (state == State::Playing) {
-                                SetState(State::Chat);
-                            } else if (state == State::Chat) {
-                                SetState(State::Playing);
-                            }
+                        auto state = GetState();
+                        if (state == State::Playing) {
+                            SetState(State::Chat);
+                        }
+                        else if (state == State::Chat) {
+                            SetState(State::Playing);
                         }
-
                         break;
                     }
 
@@ -294,6 +300,16 @@ void Render::HandleEvents() {
                 break;
             }
 
+            case SDL_KEYUP: {
+                sdlKeyMods = event.key.keysym.mod;
+                rmlKeymods = ConvertKeymodsSdlToRml(sdlKeyMods);
+
+                auto it = keyMapping.find(event.key.keysym.sym);
+                Rml::Input::KeyIdentifier ki = it != keyMapping.end() ? it->second : Rml::Input::KeyIdentifier::KI_UNKNOWN;
+                rmlContext->ProcessKeyUp(ki, rmlKeymods);
+                break;
+            }
+
             case SDL_MOUSEMOTION: {
                 if (isMouseCaptured) {
                     double deltaX = event.motion.xrel;
@@ -301,36 +317,70 @@ void Render::HandleEvents() {
                     deltaX *= sensetivity;
                     deltaY *= sensetivity * -1;
                     PUSH_EVENT("MouseMove", std::make_tuple(deltaX, deltaY));
+                } else {
+                    int mouseX, mouseY;
+                    SDL_GetMouseState(&mouseX, &mouseY);
+                    rmlContext->ProcessMouseMove(mouseX, mouseY, rmlKeymods);
                 }
-
                 break;
             }
 
             case SDL_MOUSEBUTTONDOWN: {
-                if (isMouseCaptured && !ImGui::GetIO().WantCaptureMouse) {
+                if (isMouseCaptured) {
                     if (event.button.button == SDL_BUTTON_LEFT)
                         PUSH_EVENT("LmbPressed", 0);
                     else if (event.button.button == SDL_BUTTON_RIGHT)
                         PUSH_EVENT("RmbPressed", 0);
+                } else {
+                    if (event.button.button == SDL_BUTTON_MIDDLE)
+                        event.button.button = SDL_BUTTON_RIGHT;
+                    else if (event.button.button == SDL_BUTTON_RIGHT)
+                        event.button.button = SDL_BUTTON_MIDDLE;
+                    rmlContext->ProcessMouseButtonDown(event.button.button - 1, rmlKeymods);
                 }
-
+                    
                 break;
             }
 
             case SDL_MOUSEBUTTONUP: {
-                if (isMouseCaptured && !ImGui::GetIO().WantCaptureMouse) {
+                if (isMouseCaptured) {
                     if (event.button.button == SDL_BUTTON_LEFT)
                         PUSH_EVENT("LmbReleased", 0);
                     else if (event.button.button == SDL_BUTTON_RIGHT)
                         PUSH_EVENT("RmbReleased", 0);
+                } else {
+                    if (event.button.button == SDL_BUTTON_MIDDLE)
+                        event.button.button = SDL_BUTTON_RIGHT;
+                    else if (event.button.button == SDL_BUTTON_RIGHT)
+                        event.button.button = SDL_BUTTON_MIDDLE;
+                    rmlContext->ProcessMouseButtonUp(event.button.button - 1, rmlKeymods);
                 }
                 break;
             }
 
+            case SDL_TEXTINPUT: {
+                rmlContext->ProcessTextInput(Rml::String(event.text.text));
+                break;
+            }
+
             default:
                 break;
         }
     }
+    char* rawClipboard = SDL_GetClipboardText();
+    std::string clipboard = rawClipboard;
+    SDL_free(rawClipboard);
+
+    if (clipboard != rmlSystem->clipboard) {
+        rmlSystem->clipboard = clipboard;
+    }
+
+    rmlContext->Update();
+
+    if (clipboard != rmlSystem->clipboard) {
+        clipboard = rmlSystem->clipboard;
+        SDL_SetClipboardText(clipboard.c_str());
+    }
 }
 
 void Render::HandleMouseCapture() {
@@ -366,307 +416,8 @@ void Render::Update() {
 
 void Render::RenderGui() {
 	OPTICK_EVENT();
-    ImGui_ImplSdlGL3_NewFrame(window);
-
-    if (isMouseCaptured) {
-        auto& io = ImGui::GetIO();
-        io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
-    }
-
-    const ImGuiWindowFlags windowFlags = ImGuiWindowFlags_NoTitleBar |
-                                         ImGuiWindowFlags_NoResize |
-                                         ImGuiWindowFlags_NoMove |
-                                         ImGuiWindowFlags_AlwaysAutoResize|
-                                         ImGuiWindowFlags_NoSavedSettings;
-
-    //ImGui::ShowTestWindow();
-
-    ImGui::SetNextWindowPos(ImVec2(10, 10));
-    ImGui::Begin("DebugInfo", 0, ImVec2(0, 0), 0.4f, windowFlags);
-    ImGui::Text("Debug Info:");
-    ImGui::Separator();
-    ImGui::Text("State: %s", stateString.c_str());
-    ImGui::Text("FPS: %.1f (%.3fms)", ImGui::GetIO().Framerate, 1000.0f / ImGui::GetIO().Framerate);
-    float gameTime = DebugInfo::gameThreadTime / 100.0f;
-    if (world) {
-		Entity *playerPtr = GetGameState()->GetPlayer();
-		SelectionStatus selectionStatus = GetGameState()->GetSelectionStatus();
-		const World *worldPtr = &GetGameState()->GetWorld();
-
-        ImGui::Text("TPS: %.1f (%.2fms)", 1000.0f / gameTime, gameTime);
-        ImGui::Text("Sections loaded: %d", (int) DebugInfo::totalSections);
-        ImGui::Text(
-            "SectionsRenderer: %d (%d)",
-            (int) DebugInfo::renderSections,(int) DebugInfo::readyRenderer);
-
-        ImGui::Text(
-            "Culled sections: %d",
-            (int) DebugInfo::renderSections - world->culledSections);
-
-		ImGui::Text(
-			"Rendered faces: %d",
-			(int)DebugInfo::renderFaces);
-
-        ImGui::Text(
-            "Player pos: %.1f  %.1f  %.1f  OnGround=%d",
-			playerPtr->pos.x,
-			playerPtr->pos.y,
-			playerPtr->pos.z,
-			playerPtr->onGround);
-
-		ImGui::Text(
-			"Player block pos: %d %d %d in %d %d %d",
-			(int)(playerPtr->pos.x - std::floor(playerPtr->pos.x / 16.0) * 16),
-			(int)(playerPtr->pos.y - std::floor(playerPtr->pos.y / 16.0) * 16),
-			(int)(playerPtr->pos.z - std::floor(playerPtr->pos.z / 16.0) * 16),
-
-			(int)std::floor(playerPtr->pos.x / 16.0),
-			(int)std::floor(playerPtr->pos.y / 16.0),
-			(int)std::floor(playerPtr->pos.z / 16.0));
-
-        ImGui::Text(
-            "Player vel: %.1f  %.1f  %.1f",
-			playerPtr->vel.x,
-			playerPtr->vel.y,
-			playerPtr->vel.z);
-
-        ImGui::Text(
-            "Player health: %.1f/%.1f",
-            GetGameState()->GetPlayerStatus().health, 20.0f);
-
-        ImGui::Text(
-            "Selected block: %d %d %d : %.1f",
-            selectionStatus.selectedBlock.x,
-			selectionStatus.selectedBlock.y,
-			selectionStatus.selectedBlock.z,
-			selectionStatus.distanceToSelectedBlock);
-
-		ImGui::Text("Selected block light: %d  (%d)",
-			worldPtr->GetBlockLight(selectionStatus.selectedBlock),
-			worldPtr->GetBlockSkyLight(selectionStatus.selectedBlock));
-
-		ImGui::Text("Selected block id: %d:%d  (%s)",
-			worldPtr->GetBlockId(selectionStatus.selectedBlock).id,
-			worldPtr->GetBlockId(selectionStatus.selectedBlock).state,
-			AssetManager::GetAssetNameByBlockId(BlockId{ worldPtr->GetBlockId(selectionStatus.selectedBlock).id,0 }).c_str());
-
-		ImGui::Text("Selected block variant: %s:%s",
-			GetBlockInfo(worldPtr->GetBlockId(selectionStatus.selectedBlock)).blockstate.c_str(),
-			GetBlockInfo(worldPtr->GetBlockId(selectionStatus.selectedBlock)).variant.c_str());
-    }
-    ImGui::End();
-
-
-    switch (GetState()) {
-        case State::MainMenu: {
-            ImGui::SetNextWindowPosCenter();
-            ImGui::Begin("Menu", 0, windowFlags);
-            if (ImGui::Button("Connect")) {
-				std::string addr(fieldServerAddr);
-				size_t index = addr.find_last_of(':');
-				unsigned short port;
-				if (index == std::string::npos)
-					port = 25565;
-				else {
-					try {
-						port = std::stoi(addr.substr(index + 1));
-					} catch (std::exception &e) {
-						port = 25565;
-					}
-				}
-				PUSH_EVENT("ConnectToServer", std::make_tuple(addr.substr(0, index), port, std::string(fieldUsername)));
-            }
-            ImGui::InputText("Username", fieldUsername, 512);
-            ImGui::InputText("Address", fieldServerAddr, 512);
-            ImGui::Separator();
-            if (ImGui::Button("Exit"))
-                PUSH_EVENT("Exit",0);
-            ImGui::End();
-            break;
-        }
 
-        case State::Loading:
-            break;
-            
-        case State::Chat: {
-            ImGui::SetNextWindowPosCenter();
-            ImGui::Begin("Chat", 0, windowFlags);
-            for (const auto& msg : chatMessages) {
-                ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1,1,1,1));
-                ImGui::TextWrapped("%s", msg.c_str());
-                ImGui::PopStyleColor();
-            }
-            static char buff[256];
-            ImGui::InputText("", buff, 256);
-            ImGui::SameLine();
-            if (ImGui::Button("Send")) {
-                PUSH_EVENT("SendChatMessage", std::string(buff));
-            }
-            ImGui::End();
-            break;
-        }
-
-        case State::Inventory: {
-            auto renderSlot = [](const SlotDataType &slot, int i) -> bool {
-                return ImGui::Button(((slot.BlockId == -1 ? "  ##" :
-                    AssetManager::GetAssetNameByBlockId(BlockId{ (unsigned short)slot.BlockId,0 }) + " x" + std::to_string(slot.ItemCount) + "##")
-                    + std::to_string(i)).c_str());
-            };
-            ImGui::SetNextWindowPosCenter();
-            ImGui::Begin("Inventory", 0, windowFlags);
-            const Window& inventory = GetGameState()->GetInventory();
-            //Hand and drop slots
-            if (renderSlot(inventory.handSlot, -1)) {
-
-            }
-            ImGui::SameLine();
-            if (ImGui::Button("Drop")) {
-                //inventory.MakeClick(-1, true, true);
-            }
-            ImGui::SameLine();
-            ImGui::Text("Hand slot and drop mode");
-            ImGui::Separator();
-            //Crafting
-            if (renderSlot(inventory.slots[1], 1)) {
-                //inventory.MakeClick(1, true);
-            }
-            ImGui::SameLine();
-            if (renderSlot(inventory.slots[2], 2)) {
-                //inventory.MakeClick(2, true);
-            }
-            //Crafting result
-            ImGui::SameLine();
-            ImGui::Text("Result");
-            ImGui::SameLine();
-            if (renderSlot(inventory.slots[0], 0)) {
-                //inventory.MakeClick(0, true);
-            }
-            //Crafting second line
-            if (renderSlot(inventory.slots[3], 3)) {
-                //inventory.MakeClick(3, true);
-            }
-            ImGui::SameLine();
-            if (renderSlot(inventory.slots[4], 4)) {
-                //inventory.MakeClick(4, true);
-            }
-            ImGui::Separator();
-            //Armor and offhand
-            for (int i = 5; i < 8 + 1; i++) {
-                if (renderSlot(inventory.slots[i], i)) {
-                    //inventory.MakeClick(i, true);
-                }
-                ImGui::SameLine();
-            }
-            if (renderSlot(inventory.slots[45], 45)) {
-                //inventory.MakeClick(45, true);
-            }
-            ImGui::SameLine();
-            ImGui::Text("Armor and offhand");
-            ImGui::Separator();
-            for (int i = 36; i < 44 + 1; i++) {
-                if (renderSlot(inventory.slots[i], i)) {
-                    //inventory.MakeClick(i, true);
-                }
-                ImGui::SameLine();
-            }
-            ImGui::Text("Hotbar");
-            ImGui::Separator();
-            ImGui::Text("Main inventory");
-            for (int i = 9; i < 17 + 1; i++) {
-                if (renderSlot(inventory.slots[i], i)) {
-                    //inventory.MakeClick(i, true);
-                }
-                ImGui::SameLine();
-            }
-            ImGui::Text("");
-            for (int i = 18; i < 26 + 1; i++) {
-                if (renderSlot(inventory.slots[i], i)) {
-                    //inventory.MakeClick(i, true);
-                }
-                ImGui::SameLine();
-            }
-            ImGui::Text("");
-            for (int i = 27; i < 35 + 1; i++) {
-                if (renderSlot(inventory.slots[i], i)) {
-                    //inventory.MakeClick(i, true);
-                }
-                ImGui::SameLine();
-            }
-            ImGui::End();
-
-            break;
-        }
-
-        case State::Paused: {
-            ImGui::SetNextWindowPosCenter();
-            ImGui::Begin("Pause Menu", 0, windowFlags);
-            if (ImGui::Button("Continue")) {
-                SetState(State::Playing);
-            }
-            ImGui::Separator();
-
-			ImGui::SliderFloat("Render distance", &fieldDistance, 1.0f, 16.0f);
-
-			ImGui::SliderFloat("Brightness", &fieldBrightness, 0.0f, 1.0f);
-
-			ImGui::SliderFloat("Sensetivity", &fieldSensetivity, 0.01f, 1.0f);
-
-			ImGui::SliderFloat("Target FPS", &fieldTargetFps, 1.0f, 300.0f);
-
-			ImGui::SliderFloat("Resolution scale", &fieldResolutionScale, 0.1f, 2.0f);
-
-			ImGui::Checkbox("Wireframe", &fieldWireframe);
-
-            ImGui::Checkbox("VSync", &fieldVsync);
-
-			ImGui::Checkbox("Creative flight", &fieldFlight);
-						
-            if (ImGui::Button("Apply settings")) {
-                if (fieldDistance != world->MaxRenderingDistance) {
-                    world->MaxRenderingDistance = fieldDistance;
-                    PUSH_EVENT("UpdateSectionsRender", 0);
-                }
-
-                if (fieldSensetivity != sensetivity)
-                    sensetivity = fieldSensetivity;
-
-				GetGameState()->GetPlayer()->isFlying = fieldFlight;
-
-                isWireframe = fieldWireframe;
-				GetTime()->SetDelayLength(std::chrono::duration<double, std::milli>(1.0 / fieldTargetFps * 1000.0));
-                if (fieldVsync) {
-					GetTime()->SetDelayLength(std::chrono::milliseconds(0));
-                    SDL_GL_SetSwapInterval(1);
-                } else
-                    SDL_GL_SetSwapInterval(0);
-
-				PUSH_EVENT("SetMinLightLevel", fieldBrightness);
-
-				int width, height;
-				SDL_GL_GetDrawableSize(window, &width, &height);
-				framebuffer->Resize(width * fieldResolutionScale, height * fieldResolutionScale);
-            }
-            ImGui::Separator();
-
-            if (ImGui::Button("Disconnect")) {
-                PUSH_EVENT("Disconnect", std::string("Disconnected by user"));
-            }
-            ImGui::End();
-            break;
-        }
-
-        case State::InitialLoading:
-            break;
-
-        case State::Playing: {
-            ImGui::SetNextWindowPosCenter();
-            ImGui::Begin("",0,windowFlags);
-            ImGui::End();
-            break;
-        }
-    }
-
-    ImGui::Render();
+    rmlContext->Render();
 }
 
 void Render::InitEvents() {
@@ -677,7 +428,7 @@ void Render::InitEvents() {
     listener.RegisterHandler("PlayerConnected", [this](const Event&) {
         stateString = "Loading terrain...";
         world = std::make_unique<RendererWorld>();
-		world->MaxRenderingDistance = fieldDistance;
+        world->MaxRenderingDistance = Settings::ReadDouble("renderDistance", 2.0f);
 		PUSH_EVENT("UpdateSectionsRender", 0);		
     });
 
@@ -685,9 +436,9 @@ void Render::InitEvents() {
         stateString = "Playing";
         renderWorld = true;
         SetState(State::Playing);
-		glClearColor(0, 0, 0, 1.0f);
-		GetGameState()->GetPlayer()->isFlying = this->fieldFlight;
-		PUSH_EVENT("SetMinLightLevel", fieldBrightness);
+        glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+        GetGameState()->GetPlayer()->isFlying = Settings::ReadBool("flight", false);
+        PUSH_EVENT("SetMinLightLevel", (float)Settings::ReadDouble("brightness", 0.2f));
     });
 
     listener.RegisterHandler("ConnectionFailed", [this](const Event& eventData) {
@@ -695,7 +446,7 @@ void Render::InitEvents() {
         renderWorld = false;
         world.reset();
         SetState(State::MainMenu);
-		glClearColor(0.8, 0.8, 0.8, 1.0f);
+		glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
     });
 
     listener.RegisterHandler("Disconnected", [this](const Event& eventData) {
@@ -703,7 +454,7 @@ void Render::InitEvents() {
         renderWorld = false;
         world.reset();
         SetState(State::MainMenu);
-		glClearColor(0.8, 0.8, 0.8, 1.0f);
+        glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
     });
 
     listener.RegisterHandler("Connecting", [this](const Event&) {
@@ -749,4 +500,67 @@ void Render::InitEvents() {
                 break;
         }
     });
+
+    listener.RegisterHandler("SettingsUpdate", [this](const Event& eventData) {
+        if (world) {
+            float renderDistance = Settings::ReadDouble("renderDistance", 2.0f);
+            if (renderDistance != world->MaxRenderingDistance) {
+                world->MaxRenderingDistance = renderDistance;
+                PUSH_EVENT("UpdateSectionsRender", 0);
+            }
+        }
+        
+
+        float mouseSensetivity = Settings::ReadDouble("mouseSensetivity", 0.1f);
+        if (mouseSensetivity != sensetivity)
+            sensetivity = mouseSensetivity;
+        
+        if (GetGameState()) {
+            bool flight = Settings::ReadBool("flight", false);
+            GetGameState()->GetPlayer()->isFlying = flight;
+        }
+
+        bool wireframe = Settings::ReadBool("wireframe", false);
+        isWireframe = wireframe;
+
+        float targetFps = Settings::ReadDouble("targetFps", 60.0f);
+        GetTime()->SetDelayLength(std::chrono::duration<double, std::milli>(1.0 / targetFps * 1000.0));
+
+        bool vsync = Settings::ReadBool("vsync", false);
+        if (vsync) {
+            GetTime()->SetDelayLength(std::chrono::milliseconds(0));
+            SDL_GL_SetSwapInterval(1);
+        }
+        else
+            SDL_GL_SetSwapInterval(0);
+
+        float brightness = Settings::ReadDouble("brightness", 0.2f);
+        PUSH_EVENT("SetMinLightLevel", brightness);
+
+        float resolutionScale = Settings::ReadDouble("resolutionScale", 1.0f);
+        int width, height;
+        SDL_GL_GetDrawableSize(window, &width, &height);
+        framebuffer->Resize(width * resolutionScale, height * resolutionScale);
+    });
+}
+
+void Render::InitRml() {
+    LOG(INFO) << "Initializing Rml";
+
+    rmlSystem = std::make_unique<RmlSystemInterface>();
+    Rml::SetSystemInterface(rmlSystem.get());
+
+    rmlRender = std::make_unique<RmlRenderInterface>(renderState);
+    Rml::SetRenderInterface(rmlRender.get());
+    rmlRender->Update(renderState.WindowWidth, renderState.WindowHeight);
+
+    rmlFile = std::make_unique<RmlFileInterface>();
+    Rml::SetFileInterface(rmlFile.get());
+
+    if (!Rml::Initialise())
+        LOG(WARNING) << "Rml not initialized";
+
+    Rml::Lua::Initialise(PluginSystem::GetLuaState());
+
+    rmlContext = Rml::CreateContext("default", Rml::Vector2i(renderState.WindowWidth, renderState.WindowHeight));
 }
diff --git a/src/Render.hpp b/src/Render.hpp
index 8e2e233..4f993c3 100644
--- a/src/Render.hpp
+++ b/src/Render.hpp
@@ -13,6 +13,13 @@
 
 class RendererWorld;
 class Framebuffer;
+class RmlRenderInterface;
+class RmlSystemInterface;
+class RmlFileInterface;
+namespace Rml
+{
+	class Context;
+}
 
 class Render {
     SDL_Window *window;
@@ -33,16 +40,11 @@ class Render {
     std::vector<std::string> chatMessages;
 	EventListener listener;
     std::string stateString;
-	char fieldUsername[512];
-	char fieldServerAddr[512];
-	float fieldDistance;
-	float fieldSensetivity;
-	float fieldTargetFps;
-	bool fieldWireframe;
-	bool fieldVsync;
-	bool fieldFlight;
-	float fieldBrightness;
-	float fieldResolutionScale;
+	std::unique_ptr<RmlRenderInterface> rmlRender;
+	std::unique_ptr<RmlSystemInterface> rmlSystem;
+	std::unique_ptr<RmlFileInterface> rmlFile;
+	Rml::Context* rmlContext;
+	unsigned short sdlKeyMods = 0;
 
 	void SetMouseCapture(bool IsCaptured);
 
@@ -64,6 +66,8 @@ class Render {
 
 	void InitEvents();
 
+	void InitRml();
+
 public:
 	Render(unsigned int windowWidth, unsigned int windowHeight, std::string windowTitle);
 	~Render();
diff --git a/src/Rml.cpp b/src/Rml.cpp
new file mode 100644
index 0000000..6ed83c1
--- /dev/null
+++ b/src/Rml.cpp
@@ -0,0 +1,210 @@
+#include "Rml.hpp"
+
+#include <easylogging++.h>
+
+#include "AssetManager.hpp"
+#include "Shader.hpp"
+#include "Utility.hpp"
+
+double RmlSystemInterface::GetElapsedTime() {
+	return totalTime;
+}
+
+bool RmlSystemInterface::LogMessage(Rml::Log::Type type, const Rml::String& message) {
+    switch (type) {
+    case Rml::Log::Type::LT_ALWAYS:
+        LOG(ERROR) << message;
+        break;
+    case Rml::Log::Type::LT_ERROR:
+        LOG(ERROR) << message;
+        break;
+    case Rml::Log::Type::LT_ASSERT:
+        LOG(ERROR) << message;
+        break;
+    case Rml::Log::Type::LT_WARNING:
+        LOG(WARNING) << message;
+        break;
+    case Rml::Log::Type::LT_INFO:
+        LOG(INFO) << message;
+        break;
+    case Rml::Log::Type::LT_DEBUG:
+        LOG(DEBUG) << message;
+        break;
+    case Rml::Log::Type::LT_MAX:
+        LOG(DEBUG) << message;
+        break;
+    }
+    return true;
+}
+
+void RmlSystemInterface::SetClipboardText(const Rml::String& text) {
+    clipboard = text;
+}
+
+void RmlSystemInterface::GetClipboardText(Rml::String& text) {
+    text = clipboard;
+}
+
+RmlRenderInterface::RmlRenderInterface(RenderState& renderState) : State(&renderState) {
+    glGenVertexArrays(1, &Vao);
+    glBindVertexArray(Vao);
+    glCheckError();
+
+    glGenBuffers(1, &Ebo);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, Ebo);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, 0, nullptr, GL_STREAM_DRAW);
+    glCheckError();
+
+    glGenBuffers(1, &Vbo);
+    glBindBuffer(GL_ARRAY_BUFFER, Vbo);
+    glBufferData(GL_ARRAY_BUFFER, 0, nullptr, GL_STREAM_DRAW);
+    glCheckError();
+    
+    {
+        //Vertex position (2 float)
+        GLuint PosAttribPos = 0;
+        glVertexAttribPointer(PosAttribPos, 2, GL_FLOAT, GL_FALSE, 20, (void*)0);
+        glEnableVertexAttribArray(PosAttribPos);
+
+        //Vertex colour (4 uint8 RGBA)
+        GLuint ColAttribPos = 1;
+        glVertexAttribIPointer(ColAttribPos, 4, GL_UNSIGNED_BYTE, 20, (void*)8);
+        glEnableVertexAttribArray(ColAttribPos);
+
+        //Vertex tex_coord (2 float)
+        GLuint TexAttribPos = 2;
+        glVertexAttribPointer(TexAttribPos, 2, GL_FLOAT, GL_FALSE, 20, (void*)12);
+        glEnableVertexAttribArray(TexAttribPos);
+    }
+    glBindVertexArray(0);
+    glBindBuffer(GL_ARRAY_BUFFER, 0);
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+    glCheckError();
+}
+
+RmlRenderInterface::~RmlRenderInterface() {
+    glDeleteVertexArrays(1, &Vao);
+    glDeleteBuffers(1, &Vbo);
+    glDeleteBuffers(1, &Ebo);
+    glCheckError();
+}
+
+void RmlRenderInterface::RenderGeometry(Rml::Vertex* vertices, int num_vertices, int* indices, int num_indices, Rml::TextureHandle texture, const Rml::Vector2f& translation) {
+    if (texture) {
+        AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rmltex")->shader->Activate();
+        AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rmltex")->shader->SetUniform("translation", glm::vec2(translation.x, translation.y));
+        glBindTexture(GL_TEXTURE_2D, texture);
+    } else {
+        AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rml")->shader->Activate();
+        AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rml")->shader->SetUniform("translation", glm::vec2(translation.x, translation.y));
+    }   
+    glCheckError();
+
+    glBindVertexArray(Vao);
+    glCheckError();
+
+    glBindBuffer(GL_ARRAY_BUFFER, Vbo);
+    glBufferData(GL_ARRAY_BUFFER, num_vertices * sizeof(Rml::Vertex), vertices, GL_STREAM_DRAW);
+    glCheckError();
+
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, Ebo);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, num_indices * sizeof(int), indices, GL_STREAM_DRAW);
+    glCheckError();
+
+    glDrawElements(GL_TRIANGLES, num_indices, GL_UNSIGNED_INT, 0);
+    glCheckError();
+    glBindVertexArray(0);
+}
+
+void RmlRenderInterface::EnableScissorRegion(bool enable) {
+
+}
+
+void RmlRenderInterface::SetScissorRegion(int x, int y, int width, int height) {
+
+}
+
+bool RmlRenderInterface::LoadTexture(Rml::TextureHandle& texture_handle, Rml::Vector2i& texture_dimensions, const Rml::String& source) {
+    return false;
+}
+
+bool RmlRenderInterface::GenerateTexture(Rml::TextureHandle& texture_handle, const Rml::byte* source, const Rml::Vector2i& source_dimensions) {
+    int mipLevelCount = 1;
+    glActiveTexture(GL_TEXTURE0);
+    GLuint texture;
+    glGenTextures(1, &texture);
+    glBindTexture(GL_TEXTURE_2D, texture);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+    glCheckError();
+
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, source_dimensions.x, source_dimensions.y, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, source);
+    glCheckError();
+
+    texture_handle = texture;
+    return true;
+}
+
+void RmlRenderInterface::ReleaseTexture(Rml::TextureHandle texture) {
+    GLuint textures = texture;
+    glDeleteTextures(1, &textures);
+    glCheckError();
+}
+
+void RmlRenderInterface::Update(unsigned int windowWidth, unsigned int windowHeight) {
+    AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rml")->shader->Activate();
+    AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rml")->shader->SetUniform("viewportSize", windowWidth, windowHeight);
+    glCheckError();
+    AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rmltex")->shader->Activate();
+    AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rmltex")->shader->SetUniform("viewportSize", windowWidth, windowHeight);
+    AssetManager::GetAsset<AssetShader>("/altcraft/shaders/rmltex")->shader->SetUniform("fontTexture", 0);
+    glCheckError();
+}
+
+Rml::FileHandle RmlFileInterface::Open(const Rml::String& path) {
+    Rml::FileHandle fileId = handles.rbegin() != handles.rend() ? handles.rbegin()->first + 1 : 1;
+    while (handles.find(fileId) != handles.end())
+        fileId++;
+
+    AssetHandle handle;
+    handle.fileName = path;
+    std::string assetName = path;
+    if (*assetName.begin() != '/')
+        assetName = "/" + assetName;
+    handle.assetPtr = AssetManager::GetAssetByAssetName(assetName);
+    handle.filePos = 0;
+
+    if (handle.assetPtr != nullptr)
+        handles.insert(std::make_pair(fileId, handle));
+    else
+        fileId = 0;
+    return fileId;
+}
+
+void RmlFileInterface::Close(Rml::FileHandle file) {
+    handles.erase(file);
+}
+
+size_t RmlFileInterface::Read(void* buffer, size_t size, Rml::FileHandle file) {
+    size_t readed = 0;
+    readed = _min((size_t)(handles[file].assetPtr->data.size() - handles[file].filePos), size);
+    std::memcpy(buffer, handles[file].assetPtr->data.data() + handles[file].filePos, readed);
+    handles[file].filePos += readed;
+    return readed;
+}
+
+bool RmlFileInterface::Seek(Rml::FileHandle file, long offset, int origin) {
+    unsigned long long base = 0;
+    if (origin == SEEK_CUR)
+        base = handles[file].filePos;
+    else if (origin == SEEK_END)
+        base = handles[file].assetPtr->data.size();
+    handles[file].filePos = base + offset;
+    return true;
+}
+
+size_t RmlFileInterface::Tell(Rml::FileHandle file) {
+    return handles[file].filePos;
+}
diff --git a/src/Rml.hpp b/src/Rml.hpp
new file mode 100644
index 0000000..6e4d857
--- /dev/null
+++ b/src/Rml.hpp
@@ -0,0 +1,86 @@
+#pragma once
+
+#include <map>
+
+#include <RmlUi/Core/SystemInterface.h>
+#include <RmlUi/Core/RenderInterface.h>
+#include <RmlUi/Core/FileInterface.h>
+
+#include "Renderer.hpp"
+
+class AssetTreeNode;
+
+class RmlSystemInterface : public Rml::SystemInterface {
+	double totalTime;
+public:
+
+	virtual double GetElapsedTime() override;
+
+	virtual bool LogMessage(Rml::Log::Type type, const Rml::String& message) override;
+
+	virtual void SetClipboardText(const Rml::String& text) override;
+
+	virtual void GetClipboardText(Rml::String& text) override;
+
+	inline void Update(double timeToUpdate) {
+		totalTime += timeToUpdate;
+	}
+
+	std::string clipboard;
+};
+
+class RmlRenderInterface : public Rml::RenderInterface {
+	RenderState* State;
+
+	GLuint Vao, Vbo, Ebo;
+
+public:
+
+	RmlRenderInterface(RenderState &renderState);
+
+	RmlRenderInterface(const RmlRenderInterface&) = delete;
+
+	RmlRenderInterface(RmlRenderInterface&&) = delete;
+
+	RmlRenderInterface& operator=(const RmlRenderInterface&) = delete;
+
+	RmlRenderInterface& operator=(RmlRenderInterface&&) = delete;
+
+	~RmlRenderInterface();
+
+	virtual void RenderGeometry(Rml::Vertex* vertices, int num_vertices, int* indices, int num_indices, Rml::TextureHandle texture, const Rml::Vector2f& translation) override;
+
+	virtual void EnableScissorRegion(bool enable) override;
+
+	virtual void SetScissorRegion(int x, int y, int width, int height) override;
+
+	virtual bool LoadTexture(Rml::TextureHandle& texture_handle, Rml::Vector2i& texture_dimensions, const Rml::String& source) override;
+	
+	virtual bool GenerateTexture(Rml::TextureHandle& texture_handle, const Rml::byte* source, const Rml::Vector2i& source_dimensions) override;
+	
+	virtual void ReleaseTexture(Rml::TextureHandle texture) override;
+
+	void Update(unsigned int windowWidth, unsigned int windowHeight);
+
+};
+
+class RmlFileInterface : public Rml::FileInterface {
+	struct AssetHandle {
+		std::string fileName;
+		unsigned long long filePos;
+		AssetTreeNode* assetPtr;
+	};
+	std::map<Rml::FileHandle, AssetHandle> handles;
+public:
+
+	virtual Rml::FileHandle Open(const Rml::String& path) override;
+
+	virtual void Close(Rml::FileHandle file) override;
+
+	virtual size_t Read(void* buffer, size_t size, Rml::FileHandle file) override;
+
+	virtual bool Seek(Rml::FileHandle file, long offset, int origin) override;
+
+	virtual size_t Tell(Rml::FileHandle file) override;
+
+};
diff --git a/src/Shader.hpp b/src/Shader.hpp
index 8e1ce9e..6b3220d 100644
--- a/src/Shader.hpp
+++ b/src/Shader.hpp
@@ -26,10 +26,18 @@ public:
 
 	void Activate();
 
+	inline void SetUniform(const std::string& name, unsigned int val, unsigned int val2) {
+		glUniform2ui(GetUniformLocation(name), val, val2);
+	}
+
 	inline void SetUniform(const std::string &name, int val) {
 		glUniform1i(GetUniformLocation(name), val);
 	}
 
+	inline void SetUniform(const std::string& name, int val, int val2) {
+		glUniform2i(GetUniformLocation(name), val, val2);
+	}
+
 	inline void SetUniform(const std::string &name, float val) {
 		glUniform1f(GetUniformLocation(name), val);
 	}
diff --git a/src/imgui_impl_sdl_gl3.cpp b/src/imgui_impl_sdl_gl3.cpp
deleted file mode 100644
index 9833b12..0000000
--- a/src/imgui_impl_sdl_gl3.cpp
+++ /dev/null
@@ -1,401 +0,0 @@
-// ImGui SDL2 binding with OpenGL3
-// In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
-
-// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
-// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
-// https://github.com/ocornut/imgui
-
-#include "imgui.h"
-#include "imgui_impl_sdl_gl3.h"
-
-// SDL,GL3W
-#include <SDL.h>
-#include <SDL_syswm.h>
-#include <GL/glew.h>    // This example is using gl3w to access OpenGL functions (because it is small). You may use glew/glad/glLoadGen/etc. whatever already works for you.
-
-// Data
-static double       g_Time = 0.0f;
-static bool         g_MousePressed[3] = { false, false, false };
-static float        g_MouseWheel = 0.0f;
-static GLuint       g_FontTexture = 0;
-static int          g_ShaderHandle = 0, g_VertHandle = 0, g_FragHandle = 0;
-static int          g_AttribLocationTex = 0, g_AttribLocationProjMtx = 0;
-static int          g_AttribLocationPosition = 0, g_AttribLocationUV = 0, g_AttribLocationColor = 0;
-static unsigned int g_VboHandle = 0, g_VaoHandle = 0, g_ElementsHandle = 0;
-
-// This is the main rendering function that you have to implement and provide to ImGui (via setting up 'RenderDrawListsFn' in the ImGuiIO structure)
-// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly, in order to be able to run within any OpenGL engine that doesn't do so. 
-// If text or lines are blurry when integrating ImGui in your engine: in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
-void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
-{
-    // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
-    ImGuiIO& io = ImGui::GetIO();
-    int fb_width = (int)(io.DisplaySize.x * io.DisplayFramebufferScale.x);
-    int fb_height = (int)(io.DisplaySize.y * io.DisplayFramebufferScale.y);
-    if (fb_width == 0 || fb_height == 0)
-        return;
-    draw_data->ScaleClipRects(io.DisplayFramebufferScale);
-
-    // Backup GL state
-    GLenum last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, (GLint*)&last_active_texture);
-    glActiveTexture(GL_TEXTURE0);
-    GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
-    GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
-    GLint last_sampler; glGetIntegerv(GL_SAMPLER_BINDING, &last_sampler);
-    GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
-    GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
-    GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
-    GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
-    GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
-    GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
-    GLenum last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, (GLint*)&last_blend_src_rgb);
-    GLenum last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, (GLint*)&last_blend_dst_rgb);
-    GLenum last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, (GLint*)&last_blend_src_alpha);
-    GLenum last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, (GLint*)&last_blend_dst_alpha);
-    GLenum last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, (GLint*)&last_blend_equation_rgb);
-    GLenum last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, (GLint*)&last_blend_equation_alpha);
-    GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
-    GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
-    GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
-    GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
-
-    // Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, polygon fill
-    glEnable(GL_BLEND);
-    glBlendEquation(GL_FUNC_ADD);
-    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-    glDisable(GL_CULL_FACE);
-    glDisable(GL_DEPTH_TEST);
-    glEnable(GL_SCISSOR_TEST);
-    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-
-    // Setup viewport, orthographic projection matrix
-    glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
-    const float ortho_projection[4][4] =
-    {
-        { 2.0f/io.DisplaySize.x, 0.0f,                   0.0f, 0.0f },
-        { 0.0f,                  2.0f/-io.DisplaySize.y, 0.0f, 0.0f },
-        { 0.0f,                  0.0f,                  -1.0f, 0.0f },
-        {-1.0f,                  1.0f,                   0.0f, 1.0f },
-    };
-    glUseProgram(g_ShaderHandle);
-    glUniform1i(g_AttribLocationTex, 0);
-    glUniformMatrix4fv(g_AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
-    glBindVertexArray(g_VaoHandle);
-    glBindSampler(0, 0); // Rely on combined texture/sampler state.
-
-    for (int n = 0; n < draw_data->CmdListsCount; n++)
-    {
-        const ImDrawList* cmd_list = draw_data->CmdLists[n];
-        const ImDrawIdx* idx_buffer_offset = 0;
-
-        glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
-        glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert), (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW);
-
-        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
-        glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx), (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW);
-
-        for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
-        {
-            const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
-            if (pcmd->UserCallback)
-            {
-                pcmd->UserCallback(cmd_list, pcmd);
-            }
-            else
-            {
-                glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
-                glScissor((int)pcmd->ClipRect.x, (int)(fb_height - pcmd->ClipRect.w), (int)(pcmd->ClipRect.z - pcmd->ClipRect.x), (int)(pcmd->ClipRect.w - pcmd->ClipRect.y));
-                glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
-            }
-            idx_buffer_offset += pcmd->ElemCount;
-        }
-    }
-
-    // Restore modified GL state
-    glUseProgram(last_program);
-    glBindTexture(GL_TEXTURE_2D, last_texture);
-    glBindSampler(0, last_sampler);
-    glActiveTexture(last_active_texture);
-    glBindVertexArray(last_vertex_array);
-    glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
-    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
-    glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
-    glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
-    if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
-    if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
-    if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
-    if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
-    glPolygonMode(GL_FRONT_AND_BACK, last_polygon_mode[0]);
-    glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
-    glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
-}
-
-static const char* ImGui_ImplSdlGL3_GetClipboardText(void*)
-{
-    return SDL_GetClipboardText();
-}
-
-static void ImGui_ImplSdlGL3_SetClipboardText(void*, const char* text)
-{
-    SDL_SetClipboardText(text);
-}
-
-bool ImGui_ImplSdlGL3_ProcessEvent(SDL_Event* event)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    switch (event->type)
-    {
-    case SDL_MOUSEWHEEL:
-        {
-            if (event->wheel.y > 0)
-                g_MouseWheel = 1;
-            if (event->wheel.y < 0)
-                g_MouseWheel = -1;
-            return true;
-        }
-    case SDL_MOUSEBUTTONDOWN:
-        {
-            if (event->button.button == SDL_BUTTON_LEFT) g_MousePressed[0] = true;
-            if (event->button.button == SDL_BUTTON_RIGHT) g_MousePressed[1] = true;
-            if (event->button.button == SDL_BUTTON_MIDDLE) g_MousePressed[2] = true;
-            return true;
-        }
-    case SDL_TEXTINPUT:
-        {
-            io.AddInputCharactersUTF8(event->text.text);
-            return true;
-        }
-    case SDL_KEYDOWN:
-    case SDL_KEYUP:
-        {
-            int key = event->key.keysym.sym & ~SDLK_SCANCODE_MASK;
-            io.KeysDown[key] = (event->type == SDL_KEYDOWN);
-            io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
-            io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
-            io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
-            io.KeySuper = ((SDL_GetModState() & KMOD_GUI) != 0);
-            return true;
-        }
-    }
-    return false;
-}
-
-void ImGui_ImplSdlGL3_CreateFontsTexture()
-{
-    // Build texture atlas
-    ImGuiIO& io = ImGui::GetIO();
-    unsigned char* pixels;
-    int width, height;
-    io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bits for OpenGL3 demo because it is more likely to be compatible with user's existing shader.
-
-    // Upload texture to graphics system
-    GLint last_texture;
-    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
-    glGenTextures(1, &g_FontTexture);
-    glBindTexture(GL_TEXTURE_2D, g_FontTexture);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
-    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
-
-    // Store our identifier
-    io.Fonts->TexID = (void *)(intptr_t)g_FontTexture;
-
-    // Restore state
-    glBindTexture(GL_TEXTURE_2D, last_texture);
-}
-
-bool ImGui_ImplSdlGL3_CreateDeviceObjects()
-{
-    // Backup GL state
-    GLint last_texture, last_array_buffer, last_vertex_array;
-    glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
-    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
-    glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
-
-    const GLchar *vertex_shader =
-        "#version 330\n"
-        "uniform mat4 ProjMtx;\n"
-        "in vec2 Position;\n"
-        "in vec2 UV;\n"
-        "in vec4 Color;\n"
-        "out vec2 Frag_UV;\n"
-        "out vec4 Frag_Color;\n"
-        "void main()\n"
-        "{\n"
-        "	Frag_UV = UV;\n"
-        "	Frag_Color = Color;\n"
-        "	gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
-        "}\n";
-
-    const GLchar* fragment_shader =
-        "#version 330\n"
-        "uniform sampler2D Texture;\n"
-        "in vec2 Frag_UV;\n"
-        "in vec4 Frag_Color;\n"
-        "out vec4 Out_Color;\n"
-        "void main()\n"
-        "{\n"
-        "	Out_Color = Frag_Color * texture( Texture, Frag_UV.st);\n"
-        "}\n";
-
-    g_ShaderHandle = glCreateProgram();
-    g_VertHandle = glCreateShader(GL_VERTEX_SHADER);
-    g_FragHandle = glCreateShader(GL_FRAGMENT_SHADER);
-    glShaderSource(g_VertHandle, 1, &vertex_shader, 0);
-    glShaderSource(g_FragHandle, 1, &fragment_shader, 0);
-    glCompileShader(g_VertHandle);
-    glCompileShader(g_FragHandle);
-    glAttachShader(g_ShaderHandle, g_VertHandle);
-    glAttachShader(g_ShaderHandle, g_FragHandle);
-    glLinkProgram(g_ShaderHandle);
-
-    g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
-    g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
-    g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
-    g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");
-    g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color");
-
-    glGenBuffers(1, &g_VboHandle);
-    glGenBuffers(1, &g_ElementsHandle);
-
-    glGenVertexArrays(1, &g_VaoHandle);
-    glBindVertexArray(g_VaoHandle);
-    glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
-    glEnableVertexAttribArray(g_AttribLocationPosition);
-    glEnableVertexAttribArray(g_AttribLocationUV);
-    glEnableVertexAttribArray(g_AttribLocationColor);
-
-#define OFFSETOF(TYPE, ELEMENT) ((size_t)&(((TYPE *)0)->ELEMENT))
-    glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, pos));
-    glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, uv));
-    glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, col));
-#undef OFFSETOF
-
-    ImGui_ImplSdlGL3_CreateFontsTexture();
-
-    // Restore modified GL state
-    glBindTexture(GL_TEXTURE_2D, last_texture);
-    glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
-    glBindVertexArray(last_vertex_array);
-
-    return true;
-}
-
-void    ImGui_ImplSdlGL3_InvalidateDeviceObjects()
-{
-    if (g_VaoHandle) glDeleteVertexArrays(1, &g_VaoHandle);
-    if (g_VboHandle) glDeleteBuffers(1, &g_VboHandle);
-    if (g_ElementsHandle) glDeleteBuffers(1, &g_ElementsHandle);
-    g_VaoHandle = g_VboHandle = g_ElementsHandle = 0;
-
-    if (g_ShaderHandle && g_VertHandle) glDetachShader(g_ShaderHandle, g_VertHandle);
-    if (g_VertHandle) glDeleteShader(g_VertHandle);
-    g_VertHandle = 0;
-
-    if (g_ShaderHandle && g_FragHandle) glDetachShader(g_ShaderHandle, g_FragHandle);
-    if (g_FragHandle) glDeleteShader(g_FragHandle);
-    g_FragHandle = 0;
-
-    if (g_ShaderHandle) glDeleteProgram(g_ShaderHandle);
-    g_ShaderHandle = 0;
-
-    if (g_FontTexture)
-    {
-        glDeleteTextures(1, &g_FontTexture);
-        ImGui::GetIO().Fonts->TexID = 0;
-        g_FontTexture = 0;
-    }
-}
-
-bool    ImGui_ImplSdlGL3_Init(SDL_Window* window)
-{
-    ImGuiIO& io = ImGui::GetIO();
-    io.KeyMap[ImGuiKey_Tab] = SDLK_TAB;                     // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
-    io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
-    io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
-    io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
-    io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
-    io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
-    io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
-    io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
-    io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
-    io.KeyMap[ImGuiKey_Delete] = SDLK_DELETE;
-    io.KeyMap[ImGuiKey_Backspace] = SDLK_BACKSPACE;
-    io.KeyMap[ImGuiKey_Enter] = SDLK_RETURN;
-    io.KeyMap[ImGuiKey_Escape] = SDLK_ESCAPE;
-    io.KeyMap[ImGuiKey_A] = SDLK_a;
-    io.KeyMap[ImGuiKey_C] = SDLK_c;
-    io.KeyMap[ImGuiKey_V] = SDLK_v;
-    io.KeyMap[ImGuiKey_X] = SDLK_x;
-    io.KeyMap[ImGuiKey_Y] = SDLK_y;
-    io.KeyMap[ImGuiKey_Z] = SDLK_z;
-
-    io.RenderDrawListsFn = ImGui_ImplSdlGL3_RenderDrawLists;   // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
-    io.SetClipboardTextFn = ImGui_ImplSdlGL3_SetClipboardText;
-    io.GetClipboardTextFn = ImGui_ImplSdlGL3_GetClipboardText;
-    io.ClipboardUserData = NULL;
-
-#ifdef _WIN32
-    SDL_SysWMinfo wmInfo;
-    SDL_VERSION(&wmInfo.version);
-    SDL_GetWindowWMInfo(window, &wmInfo);
-    io.ImeWindowHandle = wmInfo.info.win.window;
-#else
-    (void)window;
-#endif
-
-    return true;
-}
-
-void ImGui_ImplSdlGL3_Shutdown()
-{
-    ImGui_ImplSdlGL3_InvalidateDeviceObjects();
-    ImGui::Shutdown();
-}
-
-void ImGui_ImplSdlGL3_NewFrame(SDL_Window* window)
-{
-    if (!g_FontTexture)
-        ImGui_ImplSdlGL3_CreateDeviceObjects();
-
-    ImGuiIO& io = ImGui::GetIO();
-
-    // Setup display size (every frame to accommodate for window resizing)
-    int w, h;
-    int display_w, display_h;
-    SDL_GetWindowSize(window, &w, &h);
-    SDL_GL_GetDrawableSize(window, &display_w, &display_h);
-    io.DisplaySize = ImVec2((float)w, (float)h);
-    io.DisplayFramebufferScale = ImVec2(w > 0 ? ((float)display_w / w) : 0, h > 0 ? ((float)display_h / h) : 0);
-
-    // Setup time step
-    Uint32	time = SDL_GetTicks();
-    double current_time = time / 1000.0;
-    io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
-    g_Time = current_time;
-
-    // Setup inputs
-    // (we already got mouse wheel, keyboard keys & characters from SDL_PollEvent())
-    int mx, my;
-    Uint32 mouseMask = SDL_GetMouseState(&mx, &my);
-    if (SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_FOCUS)
-        io.MousePos = ImVec2((float)mx, (float)my);   // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
-    else
-        io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
-
-    io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0;		// If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
-    io.MouseDown[1] = g_MousePressed[1] || (mouseMask & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
-    io.MouseDown[2] = g_MousePressed[2] || (mouseMask & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
-    g_MousePressed[0] = g_MousePressed[1] = g_MousePressed[2] = false;
-
-    io.MouseWheel = g_MouseWheel;
-    g_MouseWheel = 0.0f;
-
-    // Hide OS mouse cursor if ImGui is drawing it
-    SDL_ShowCursor(io.MouseDrawCursor ? 0 : 1);
-
-    // Start the frame
-    ImGui::NewFrame();
-}
diff --git a/src/imgui_impl_sdl_gl3.h b/src/imgui_impl_sdl_gl3.h
deleted file mode 100644
index 99abd40..0000000
--- a/src/imgui_impl_sdl_gl3.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// ImGui SDL2 binding with OpenGL3
-// In this binding, ImTextureID is used to store an OpenGL 'GLuint' texture identifier. Read the FAQ about ImTextureID in imgui.cpp.
-
-// You can copy and use unmodified imgui_impl_* files in your project. See main.cpp for an example of using this.
-// If you use this binding you'll need to call 4 functions: ImGui_ImplXXXX_Init(), ImGui_ImplXXXX_NewFrame(), ImGui::Render() and ImGui_ImplXXXX_Shutdown().
-// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
-// https://github.com/ocornut/imgui
-
-struct SDL_Window;
-typedef union SDL_Event SDL_Event;
-
-IMGUI_API bool        ImGui_ImplSdlGL3_Init(SDL_Window* window);
-IMGUI_API void        ImGui_ImplSdlGL3_Shutdown();
-IMGUI_API void        ImGui_ImplSdlGL3_NewFrame(SDL_Window* window);
-IMGUI_API bool        ImGui_ImplSdlGL3_ProcessEvent(SDL_Event* event);
-
-// Use if you want to reset your rendering device without losing ImGui state.
-IMGUI_API void        ImGui_ImplSdlGL3_InvalidateDeviceObjects();
-IMGUI_API bool        ImGui_ImplSdlGL3_CreateDeviceObjects();