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-rw-r--r--src/Bindings/LuaState.cpp26
-rw-r--r--src/Bindings/LuaState.h18
-rw-r--r--src/Bindings/ManualBindings.cpp70
-rw-r--r--src/Bindings/gen_LuaState_Call.lua2
-rw-r--r--src/BoundingBox.h11
-rw-r--r--src/Chunk.cpp25
-rw-r--r--src/Chunk.h4
-rw-r--r--src/ChunkMap.cpp32
-rw-r--r--src/ChunkMap.h6
-rw-r--r--src/World.cpp9
-rw-r--r--src/World.h5
11 files changed, 207 insertions, 1 deletions
diff --git a/src/Bindings/LuaState.cpp b/src/Bindings/LuaState.cpp
index 9fe93ccc2..ba2f3c5e0 100644
--- a/src/Bindings/LuaState.cpp
+++ b/src/Bindings/LuaState.cpp
@@ -859,6 +859,32 @@ void cLuaState::GetStackValue(int a_StackPos, eWeather & a_ReturnedVal)
+void cLuaState::GetStackValue(int a_StackPos, pBoundingBox & a_ReturnedVal)
+{
+ tolua_Error err;
+ if (tolua_isusertype(m_LuaState, a_StackPos, "cBoundingBox", false, &err))
+ {
+ a_ReturnedVal = *((cBoundingBox **)lua_touserdata(m_LuaState, a_StackPos));
+ }
+}
+
+
+
+
+
+void cLuaState::GetStackValue(int a_StackPos, pWorld & a_ReturnedVal)
+{
+ tolua_Error err;
+ if (tolua_isusertype(m_LuaState, a_StackPos, "cWorld", false, &err))
+ {
+ a_ReturnedVal = *((cWorld **)lua_touserdata(m_LuaState, a_StackPos));
+ }
+}
+
+
+
+
+
bool cLuaState::CallFunction(int a_NumResults)
{
ASSERT (m_NumCurrentFunctionArgs >= 0); // A function must be pushed to stack first
diff --git a/src/Bindings/LuaState.h b/src/Bindings/LuaState.h
index eeb93fd4d..44f187701 100644
--- a/src/Bindings/LuaState.h
+++ b/src/Bindings/LuaState.h
@@ -59,6 +59,10 @@ class cTNTEntity;
class cCreeper;
class cHopperEntity;
class cBlockEntity;
+class cBoundingBox;
+
+typedef cBoundingBox * pBoundingBox;
+typedef cWorld * pWorld;
@@ -230,6 +234,12 @@ public:
/** Retrieve value at a_StackPos, if it is a valid number, converting and clamping it to eWeather.
If not, a_Value is unchanged. */
void GetStackValue(int a_StackPos, eWeather & a_Value);
+
+ /** Retrieve value at a_StackPos, if it is a valid cBoundingBox class. If not, a_Value is unchanged */
+ void GetStackValue(int a_StackPos, pBoundingBox & a_Value);
+
+ /** Retrieve value at a_StackPos, if it is a valid cWorld class. If not, a_Value is unchanged */
+ void GetStackValue(int a_StackPos, pWorld & a_Value);
// Include the cLuaState::Call() overload implementation that is generated by the gen_LuaState_Call.lua script:
@@ -328,6 +338,14 @@ protected:
*/
bool PushFunction(int a_FnRef);
+ /** Pushes a function that has been saved as a reference.
+ Returns true if successful. Logs a warning on failure
+ */
+ bool PushFunction(const cRef & a_FnRef)
+ {
+ return PushFunction((int)a_FnRef);
+ }
+
/** Pushes a function that is stored in a referenced table by name
Returns true if successful. Logs a warning on failure
*/
diff --git a/src/Bindings/ManualBindings.cpp b/src/Bindings/ManualBindings.cpp
index adf10a72f..b7ea65759 100644
--- a/src/Bindings/ManualBindings.cpp
+++ b/src/Bindings/ManualBindings.cpp
@@ -679,6 +679,75 @@ static int tolua_ForEachInChunk(lua_State * tolua_S)
template <
class Ty1,
class Ty2,
+ bool (Ty1::*Func1)(const cBoundingBox &, cItemCallback<Ty2> &)
+>
+static int tolua_ForEachInBox(lua_State * tolua_S)
+{
+ // Check params:
+ cLuaState L(tolua_S);
+ if (
+ !L.CheckParamUserType(1, "cWorld") ||
+ !L.CheckParamUserType(2, "cBoundingBox") ||
+ !L.CheckParamFunction(3) ||
+ !L.CheckParamEnd(4)
+ )
+ {
+ return 0;
+ }
+
+ // Get the params:
+ Ty1 * Self = NULL;
+ cBoundingBox * Box = NULL;
+ L.GetStackValues(1, Self, Box);
+ ASSERT(Self != NULL); // We have verified the type at the top, so we should get valid objects here
+ ASSERT(Box != NULL);
+
+ // Create a reference for the function:
+ cLuaState::cRef FnRef(L, 3);
+
+ // Callback wrapper for the Lua function:
+ class cLuaCallback : public cItemCallback<Ty2>
+ {
+ public:
+ cLuaCallback(cLuaState & a_LuaState, cLuaState::cRef & a_FuncRef) :
+ m_LuaState(a_LuaState),
+ m_FnRef(a_FuncRef)
+ {}
+
+ private:
+ // cItemCallback<Ty2> overrides:
+ virtual bool Item(Ty2 * a_Item) override
+ {
+ bool res = false;
+ if (!m_LuaState.Call(m_FnRef, a_Item, cLuaState::Return, res))
+ {
+ LOGWARNING("Failed to call Lua callback");
+ m_LuaState.LogStackTrace();
+ return true; // Abort enumeration
+ }
+
+ return res;
+ }
+ cLuaState & m_LuaState;
+ cLuaState::cRef & m_FnRef;
+ } Callback(L, FnRef);
+
+ bool bRetVal = (Self->*Func1)(*Box, Callback);
+
+ FnRef.UnRef();
+
+ /* Push return value on stack */
+ tolua_pushboolean(tolua_S, bRetVal);
+ return 1;
+}
+
+
+
+
+
+template <
+ class Ty1,
+ class Ty2,
bool (Ty1::*Func1)(cItemCallback<Ty2> &)
>
static int tolua_ForEach(lua_State * tolua_S)
@@ -3327,6 +3396,7 @@ void ManualBindings::Bind(lua_State * tolua_S)
tolua_function(tolua_S, "ForEachBlockEntityInChunk", tolua_ForEachInChunk<cWorld, cBlockEntity, &cWorld::ForEachBlockEntityInChunk>);
tolua_function(tolua_S, "ForEachChestInChunk", tolua_ForEachInChunk<cWorld, cChestEntity, &cWorld::ForEachChestInChunk>);
tolua_function(tolua_S, "ForEachEntity", tolua_ForEach< cWorld, cEntity, &cWorld::ForEachEntity>);
+ tolua_function(tolua_S, "ForEachEntityInBox", tolua_ForEachInBox< cWorld, cEntity, &cWorld::ForEachEntityInBox>);
tolua_function(tolua_S, "ForEachEntityInChunk", tolua_ForEachInChunk<cWorld, cEntity, &cWorld::ForEachEntityInChunk>);
tolua_function(tolua_S, "ForEachFurnaceInChunk", tolua_ForEachInChunk<cWorld, cFurnaceEntity, &cWorld::ForEachFurnaceInChunk>);
tolua_function(tolua_S, "ForEachPlayer", tolua_ForEach< cWorld, cPlayer, &cWorld::ForEachPlayer>);
diff --git a/src/Bindings/gen_LuaState_Call.lua b/src/Bindings/gen_LuaState_Call.lua
index 2d8630d12..7f62573c7 100644
--- a/src/Bindings/gen_LuaState_Call.lua
+++ b/src/Bindings/gen_LuaState_Call.lua
@@ -109,7 +109,7 @@ local function WriteOverload(f, a_NumParams, a_NumReturns)
-- Write the function signature:
f:write("bool Call(")
- f:write("FnT a_Function")
+ f:write("const FnT & a_Function")
for i = 1, a_NumParams do
f:write(", ParamT", i, " a_Param", i)
end
diff --git a/src/BoundingBox.h b/src/BoundingBox.h
index 793466302..928e62afa 100644
--- a/src/BoundingBox.h
+++ b/src/BoundingBox.h
@@ -80,6 +80,17 @@ public:
/// Calculates the intersection of the two bounding boxes; returns true if nonempty
bool Intersect(const cBoundingBox & a_Other, cBoundingBox & a_Intersection);
+ double GetMinX(void) const { return m_Min.x; }
+ double GetMinY(void) const { return m_Min.y; }
+ double GetMinZ(void) const { return m_Min.z; }
+
+ double GetMaxX(void) const { return m_Max.x; }
+ double GetMaxY(void) const { return m_Max.y; }
+ double GetMaxZ(void) const { return m_Max.z; }
+
+ const Vector3d & GetMin(void) const { return m_Min; }
+ const Vector3d & GetMax(void) const { return m_Max; }
+
protected:
Vector3d m_Min;
Vector3d m_Max;
diff --git a/src/Chunk.cpp b/src/Chunk.cpp
index 95b8c8e5e..9fb178bc3 100644
--- a/src/Chunk.cpp
+++ b/src/Chunk.cpp
@@ -37,6 +37,7 @@
#include "MobSpawner.h"
#include "BlockInServerPluginInterface.h"
#include "SetChunkData.h"
+#include "BoundingBox.h"
#include "json/json.h"
@@ -1959,6 +1960,30 @@ bool cChunk::ForEachEntity(cEntityCallback & a_Callback)
+bool cChunk::ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback)
+{
+ // The entity list is locked by the parent chunkmap's CS
+ for (cEntityList::iterator itr = m_Entities.begin(), itr2 = itr; itr != m_Entities.end(); itr = itr2)
+ {
+ ++itr2;
+ cBoundingBox EntBox((*itr)->GetPosition(), (*itr)->GetWidth() / 2, (*itr)->GetHeight());
+ if (!EntBox.DoesIntersect(a_Box))
+ {
+ // The entity is not in the specified box
+ continue;
+ }
+ if (a_Callback.Item(*itr))
+ {
+ return false;
+ }
+ } // for itr - m_Entitites[]
+ return true;
+}
+
+
+
+
+
bool cChunk::DoWithEntityByID(int a_EntityID, cEntityCallback & a_Callback, bool & a_CallbackResult)
{
// The entity list is locked by the parent chunkmap's CS
diff --git a/src/Chunk.h b/src/Chunk.h
index 3b5d1254e..0f4928b90 100644
--- a/src/Chunk.h
+++ b/src/Chunk.h
@@ -216,6 +216,10 @@ public:
/** Calls the callback for each entity; returns true if all entities processed, false if the callback aborted by returning true */
bool ForEachEntity(cEntityCallback & a_Callback); // Lua-accessible
+ /** Calls the callback for each entity that has a nonempty intersection with the specified boundingbox.
+ Returns true if all entities processed, false if the callback aborted by returning true. */
+ bool ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback); // Lua-accessible
+
/** Calls the callback if the entity with the specified ID is found, with the entity object as the callback param. Returns true if entity found. */
bool DoWithEntityByID(int a_EntityID, cEntityCallback & a_Callback, bool & a_CallbackResult); // Lua-accessible
diff --git a/src/ChunkMap.cpp b/src/ChunkMap.cpp
index f14d680d4..8c765c8c9 100644
--- a/src/ChunkMap.cpp
+++ b/src/ChunkMap.cpp
@@ -1775,6 +1775,38 @@ bool cChunkMap::ForEachEntityInChunk(int a_ChunkX, int a_ChunkZ, cEntityCallback
+bool cChunkMap::ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback)
+{
+ // Calculate the chunk range for the box:
+ int MinChunkX = (int)floor(a_Box.GetMinX() / cChunkDef::Width);
+ int MinChunkZ = (int)floor(a_Box.GetMinZ() / cChunkDef::Width);
+ int MaxChunkX = (int)floor((a_Box.GetMaxX() + cChunkDef::Width) / cChunkDef::Width);
+ int MaxChunkZ = (int)floor((a_Box.GetMaxZ() + cChunkDef::Width) / cChunkDef::Width);
+
+ // Iterate over each chunk in the range:
+ cCSLock Lock(m_CSLayers);
+ for (int z = MinChunkZ; z <= MaxChunkZ; z++)
+ {
+ for (int x = MinChunkX; x <= MaxChunkX; x++)
+ {
+ cChunkPtr Chunk = GetChunkNoGen(x, z);
+ if ((Chunk == NULL) || !Chunk->IsValid())
+ {
+ continue;
+ }
+ if (!Chunk->ForEachEntityInBox(a_Box, a_Callback))
+ {
+ return false;
+ }
+ } // for x
+ } // for z
+ return true;
+}
+
+
+
+
+
void cChunkMap::DoExplosionAt(double a_ExplosionSize, double a_BlockX, double a_BlockY, double a_BlockZ, cVector3iArray & a_BlocksAffected)
{
// Don't explode if outside of Y range (prevents the following test running into unallocated memory):
diff --git a/src/ChunkMap.h b/src/ChunkMap.h
index 6a379e51d..8c564d0de 100644
--- a/src/ChunkMap.h
+++ b/src/ChunkMap.h
@@ -36,6 +36,7 @@ class cBlockArea;
class cMobCensus;
class cMobSpawner;
class cSetChunkData;
+class cBoundingBox;
typedef std::list<cClientHandle *> cClientHandleList;
typedef cChunk * cChunkPtr;
@@ -209,6 +210,11 @@ public:
/** Calls the callback for each entity in the specified chunk; returns true if all entities processed, false if the callback aborted by returning true */
bool ForEachEntityInChunk(int a_ChunkX, int a_ChunkZ, cEntityCallback & a_Callback); // Lua-accessible
+ /** Calls the callback for each entity that has a nonempty intersection with the specified boundingbox.
+ Returns true if all entities processed, false if the callback aborted by returning true.
+ If any chunk in the box is missing, ignores the entities in that chunk silently. */
+ bool ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback); // Lua-accessible
+
/** Destroys and returns a list of blocks destroyed in the explosion at the specified coordinates */
void DoExplosionAt(double a_ExplosionSize, double a_BlockX, double a_BlockY, double a_BlockZ, cVector3iArray & a_BlockAffected);
diff --git a/src/World.cpp b/src/World.cpp
index dd6017f0d..2a3336dee 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -2696,6 +2696,15 @@ bool cWorld::ForEachEntityInChunk(int a_ChunkX, int a_ChunkZ, cEntityCallback &
+bool cWorld::ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback)
+{
+ return m_ChunkMap->ForEachEntityInBox(a_Box, a_Callback);
+}
+
+
+
+
+
bool cWorld::DoWithEntityByID(int a_UniqueID, cEntityCallback & a_Callback)
{
return m_ChunkMap->DoWithEntityByID(a_UniqueID, a_Callback);
diff --git a/src/World.h b/src/World.h
index 49e30694e..49932ac9d 100644
--- a/src/World.h
+++ b/src/World.h
@@ -324,6 +324,11 @@ public:
/** Calls the callback for each entity in the specified chunk; returns true if all entities processed, false if the callback aborted by returning true */
bool ForEachEntityInChunk(int a_ChunkX, int a_ChunkZ, cEntityCallback & a_Callback); // Exported in ManualBindings.cpp
+ /** Calls the callback for each entity that has a nonempty intersection with the specified boundingbox.
+ Returns true if all entities processed, false if the callback aborted by returning true.
+ If any chunk in the box is missing, ignores the entities in that chunk silently. */
+ bool ForEachEntityInBox(const cBoundingBox & a_Box, cEntityCallback & a_Callback); // Exported in ManualBindings.cpp
+
/** Calls the callback if the entity with the specified ID is found, with the entity object as the callback param. Returns true if entity found and callback returned false. */
bool DoWithEntityByID(int a_UniqueID, cEntityCallback & a_Callback); // Exported in ManualBindings.cpp
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-20 14:13:47 +0200