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-rw-r--r--code/graphics/Display.cpp268
1 files changed, 268 insertions, 0 deletions
diff --git a/code/graphics/Display.cpp b/code/graphics/Display.cpp
new file mode 100644
index 0000000..a68c35b
--- /dev/null
+++ b/code/graphics/Display.cpp
@@ -0,0 +1,268 @@
+#include <iomanip>
+#include "Display.hpp"
+#include "AssetManager.hpp"
+
+Display::Display(unsigned int winWidth, unsigned int winHeight, const char *winTitle, World *worldPtr) : world(
+ worldPtr) {
+ sf::ContextSettings contextSetting;
+ contextSetting.majorVersion = 3;
+ contextSetting.minorVersion = 3;
+ contextSetting.attributeFlags = contextSetting.Core;
+ contextSetting.depthBits = 24;
+ window = new sf::Window(sf::VideoMode(winWidth, winHeight), winTitle, sf::Style::Default, contextSetting);
+ window->setVerticalSyncEnabled(true);
+ window->setMouseCursorVisible(false);
+ sf::Mouse::setPosition(sf::Vector2i(window->getSize().x / 2, window->getSize().y / 2), *window);
+
+ //Glew
+ glewExperimental = GL_TRUE;
+ if (glewInit() != GLEW_OK) {
+ std::cout << "Failed to initialize GLEW" << std::endl;
+ throw 3;
+ }
+ glViewport(0, 0, width(), height());
+ glEnable(GL_DEPTH_TEST);
+}
+
+bool Display::IsClosed() {
+ return !window->isOpen();
+}
+
+void Display::SetPlayerPos(double playerX, double playerY, double playerZ) {
+ camera.Position = glm::vec3(playerX, playerY, playerZ);
+ const int ChunkDistance = 1;
+ PositionI playerChunk = PositionI((int) playerX / 16, (int) playerZ / 16, (int) playerY / 16);
+ /*std::cout << "Player chunk position: " << playerChunk.GetX() << " "
+ << playerChunk.GetZ() << " " << playerChunk.GetY() << std::endl;*/
+ for (auto &it:world->m_sections) {
+ PositionI chunkPosition = it.first;
+ PositionI delta = chunkPosition - playerChunk;
+ if (delta.GetDistance() > ChunkDistance)
+ continue;
+ /*std::cout << "Rendering " << delta.GetDistance() << " Detailed: " << delta.GetX() << " " << delta.GetZ() << " "
+ << delta.GetY() << std::endl <<
+ "\t" << chunkPosition.GetX() << " " << chunkPosition.GetZ() << " "
+ << chunkPosition.GetY() << std::endl;*/
+ toRender.push_back(it.first);
+ }
+ std::cout << "Chunks to render: " << toRender.size() << std::endl;
+}
+
+void Display::MainLoop() {
+ Shader shader("./shaders/simple.vs", "./shaders/simple.fs");
+
+ GLfloat vertices[] = {
+ -0.5f, -0.5f, -0.5f, 0.0f, 0.0f,
+ 0.5f, -0.5f, -0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ -0.5f, 0.5f, -0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 0.0f,
+
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ 0.5f, -0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 1.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 1.0f,
+ -0.5f, 0.5f, 0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+
+ -0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ -0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ -0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, -0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, -0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, -0.5f, 0.5f, 1.0f, 0.0f,
+ -0.5f, -0.5f, 0.5f, 0.0f, 0.0f,
+ -0.5f, -0.5f, -0.5f, 0.0f, 1.0f,
+
+ -0.5f, 0.5f, -0.5f, 0.0f, 1.0f,
+ 0.5f, 0.5f, -0.5f, 1.0f, 1.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ 0.5f, 0.5f, 0.5f, 1.0f, 0.0f,
+ -0.5f, 0.5f, 0.5f, 0.0f, 0.0f,
+ -0.5f, 0.5f, -0.5f, 0.0f, 1.0f
+ };
+ GLuint indices[] = {
+ 0, 1, 2,
+ 0, 2, 3
+ };
+ GLuint VBO, VAO, EBO;
+ glGenBuffers(1, &VBO);
+ glGenBuffers(1, &EBO);
+ glGenVertexArrays(1, &VAO);
+
+ glBindVertexArray(VAO);
+ {
+ glBindBuffer(GL_ARRAY_BUFFER, VBO);
+ glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+ glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+ glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
+
+ glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), 0);
+ glEnableVertexAttribArray(0);
+ glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), (GLvoid *) (3 * sizeof(GLfloat)));
+ glEnableVertexAttribArray(2);
+ }
+ glBindVertexArray(0);
+
+ shader.Use();
+
+ bool captureMouse = true;
+
+ bool isRunning = true;
+ while (isRunning) {
+ static sf::Clock clock, clock1;
+ float deltaTime = clock.getElapsedTime().asSeconds();
+ float absTime = clock1.getElapsedTime().asSeconds();
+ clock.restart();
+ sf::Event event;
+ while (window->pollEvent(event)) {
+ switch (event.type) {
+ case sf::Event::Closed:
+ window->close();
+ isRunning = false;
+ break;
+ case sf::Event::Resized:
+ glViewport(0, 0, width(), height());
+ break;
+ case sf::Event::KeyPressed:
+ switch (event.key.code) {
+ case sf::Keyboard::Escape:
+ isRunning = false;
+ break;
+ case sf::Keyboard::T:
+ captureMouse = !captureMouse;
+ window->setMouseCursorVisible(!captureMouse);
+ sf::Mouse::setPosition(sf::Vector2i(window->getSize().x / 2, window->getSize().y / 2),
+ *window);
+ break;
+ case sf::Keyboard::R:
+ shader.Reload();
+ break;
+ default:
+ break;
+ }
+ case sf::Event::MouseWheelScrolled:
+ camera.ProcessMouseScroll(event.mouseWheelScroll.delta);
+ break;
+ default:
+ break;
+ }
+ }
+ std::ostringstream toWindow;
+ glm::highp_vec3 cameraPosition(camera.Position);
+ toWindow << std::setprecision(2) << std::fixed << "Pos: " << cameraPosition.x << ", " << cameraPosition.y
+ << ", " << cameraPosition.z << "; ";
+ toWindow << "FPS: " << (1.0f / deltaTime) << " ";
+ window->setTitle(toWindow.str());
+ if (captureMouse) {
+ sf::Vector2i mousePos = sf::Mouse::getPosition(*window);
+ sf::Vector2i center = sf::Vector2i(window->getSize().x / 2, window->getSize().y / 2);
+ sf::Mouse::setPosition(center, *window);
+ int deltaX = (mousePos - center).x, deltaY = (center - mousePos).y;
+ camera.ProcessMouseMovement(deltaX, deltaY);
+ }
+ if (sf::Keyboard::isKeyPressed(sf::Keyboard::W))
+ camera.ProcessKeyboard(Camera_Movement::FORWARD, deltaTime);
+ if (sf::Keyboard::isKeyPressed(sf::Keyboard::S))
+ camera.ProcessKeyboard(Camera_Movement::BACKWARD, deltaTime);
+ if (sf::Keyboard::isKeyPressed(sf::Keyboard::A))
+ camera.ProcessKeyboard(Camera_Movement::LEFT, deltaTime);
+ if (sf::Keyboard::isKeyPressed(sf::Keyboard::D))
+ camera.ProcessKeyboard(Camera_Movement::RIGHT, deltaTime);
+
+
+ //Render code
+ glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ shader.Use();
+
+ GLint modelLoc = glGetUniformLocation(shader.Program, "model");
+ GLint projectionLoc = glGetUniformLocation(shader.Program, "projection");
+ GLint viewLoc = glGetUniformLocation(shader.Program, "view");
+ GLint blockLoc = glGetUniformLocation(shader.Program, "block");
+ GLint timeLoc = glGetUniformLocation(shader.Program, "time");
+ glm::mat4 projection = glm::perspective(camera.Zoom, (float) width() / (float) height(), 0.1f, 1000.0f);
+ glm::mat4 view = camera.GetViewMatrix();
+ glUniformMatrix4fv(projectionLoc, 1, GL_FALSE, glm::value_ptr(projection));
+ glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));
+ glUniform1f(timeLoc, absTime);
+
+ glBindVertexArray(VAO);
+ /*for (GLuint i = 0; i < 10; i++) {
+ glm::mat4 model;
+ glm::vec3 cubePositions[] = {
+ glm::vec3(0, 0, 0),
+ glm::vec3(0, 0, 1),
+ glm::vec3(0, 0, 2),
+ glm::vec3(1, 0, 0),
+ glm::vec3(1, 0, 1),
+ glm::vec3(1, 0, 2),
+ glm::vec3(2, 0, 0),
+ glm::vec3(2, 0, 1),
+ glm::vec3(2, 0, 2),
+ glm::vec3(3, 0, 3),
+ };
+ if (toRender.size()<1)
+ continue;
+ model = glm::translate(model,
+ glm::vec3(toRender[0].GetX() * 16, toRender[0].GetZ() * 16,
+ toRender[0].GetY() * 16));
+ model = glm::translate(model, cubePositions[i]);
+
+ GLfloat angle = 20.0f * (i);
+ //model = glm::rotate(model, glm::radians(angle * absTime), glm::vec3(1.0f, 0.3f, 0.5f));
+ glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model));
+
+ glDrawArrays(GL_TRIANGLES, 0, 36);
+ }*/
+
+ for (auto &sectionPos:toRender) {
+ Section &section = world->m_sections[sectionPos];
+ for (int y = 0; y < 16; y++) {
+ for (int z = 0; z < 16; z++) {
+ for (int x = 0; x < 16; x++) {
+ glm::mat4 model;
+ model = glm::translate(model,
+ glm::vec3(sectionPos.GetX() * 16, sectionPos.GetY() * 16,
+ sectionPos.GetZ() * 16));
+ model = glm::translate(model, glm::vec3(x, y, z));
+
+ Block block = section.GetBlock(PositionI(x, z, y));
+ glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model));
+ glUniform1i(blockLoc, block.id);
+
+ std::string textureName = AssetManager::GetAssetNameByBlockId(block.id);
+ if (textureName.find("air") != std::string::npos)
+ continue;
+ Texture &texture1 = *(AssetManager::GetAsset(textureName).data.texture);
+
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D, texture1.texture);
+ glUniform1i(glGetUniformLocation(shader.Program, "blockTexture"), 0);
+
+ glDrawArrays(GL_TRIANGLES, 0, 36);
+ }
+ }
+ }
+ }
+ glBindVertexArray(0);
+
+ //End of render code
+
+ window->display();
+ }
+
+}
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