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Exported cWorld:DoWithEntityByID() to Lua API

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This commit is contained in:
madmaxoft 2013-08-05 15:41:24 +02:00
parent 3b418c7695
commit d83e4369d3
2 changed files with 290 additions and 199 deletions
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91
source/ManualBindings.cpp
View File

@ -264,6 +264,96 @@ static int tolua_DoWith(lua_State* tolua_S)
template<
class Ty1,
class Ty2,
bool (Ty1::*Func1)(int, cItemCallback<Ty2> &)
>
static int tolua_DoWithID(lua_State* tolua_S)
{
int NumArgs = lua_gettop(tolua_S) - 1; /* This includes 'self' */
if ((NumArgs != 2) && (NumArgs != 3))
{
return lua_do_error(tolua_S, "Error in function call '#funcname#': Requires 2 or 3 arguments, got %i", NumArgs);
}
Ty1 * self = (Ty1 *)tolua_tousertype(tolua_S, 1, 0);
int ItemID = (int)tolua_tonumber(tolua_S, 2, 0);
if (!lua_isfunction(tolua_S, 3))
{
return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a function for parameter #2", NumArgs);
}
/* luaL_ref gets reference to value on top of the stack, the table is the last argument and therefore on the top */
int TableRef = LUA_REFNIL;
if (NumArgs == 3)
{
TableRef = luaL_ref(tolua_S, LUA_REGISTRYINDEX);
if (TableRef == LUA_REFNIL)
{
return lua_do_error(tolua_S, "Error in function call '#funcname#': Could not get value reference of parameter #3", NumArgs);
}
}
/* table value is popped, and now function is on top of the stack */
int FuncRef = luaL_ref(tolua_S, LUA_REGISTRYINDEX);
if (FuncRef == LUA_REFNIL)
{
return lua_do_error(tolua_S, "Error in function call '#funcname#': Could not get function reference of parameter #2", NumArgs);
}
class cLuaCallback : public cItemCallback<Ty2>
{
public:
cLuaCallback(lua_State * a_LuaState, int a_FuncRef, int a_TableRef) :
LuaState(a_LuaState),
FuncRef(a_FuncRef),
TableRef(a_TableRef)
{}
private:
virtual bool Item(Ty2 * a_Item) override
{
lua_rawgeti(LuaState, LUA_REGISTRYINDEX, FuncRef); // Push function to call
tolua_pushusertype(LuaState, a_Item, Ty2::GetClassStatic()); // Push the item
if (TableRef != LUA_REFNIL)
{
lua_rawgeti(LuaState, LUA_REGISTRYINDEX, TableRef); // Push the optional callbackdata param
}
int s = lua_pcall(LuaState, (TableRef == LUA_REFNIL ? 1 : 2), 1, 0);
if (report_errors(LuaState, s))
{
return true; // Abort enumeration
}
if (lua_isboolean(LuaState, -1))
{
return (tolua_toboolean(LuaState, -1, 0) > 0);
}
return false; /* Continue enumeration */
}
lua_State * LuaState;
int FuncRef;
int TableRef;
} Callback(tolua_S, FuncRef, TableRef);
bool bRetVal = (self->*Func1)(ItemID, Callback);
/* Unreference the values again, so the LUA_REGISTRYINDEX can make place for other references */
luaL_unref(tolua_S, LUA_REGISTRYINDEX, TableRef);
luaL_unref(tolua_S, LUA_REGISTRYINDEX, FuncRef);
/* Push return value on stack */
tolua_pushboolean(tolua_S, bRetVal );
return 1;
}
template< class Ty1,
class Ty2,
bool (Ty1::*Func1)(int, int, int, cItemCallback<Ty2> &) >
@ -1382,6 +1472,7 @@ void ManualBindings::Bind(lua_State * tolua_S)
tolua_function(tolua_S, "DoWithDispenserAt", tolua_DoWithXYZ<cWorld, cDispenserEntity, &cWorld::DoWithDispenserAt>);
tolua_function(tolua_S, "DoWithDropSpenserAt", tolua_DoWithXYZ<cWorld, cDropSpenserEntity, &cWorld::DoWithDropSpenserAt>);
tolua_function(tolua_S, "DoWithDropperAt", tolua_DoWithXYZ<cWorld, cDropperEntity, &cWorld::DoWithDropperAt>);
tolua_function(tolua_S, "DoWithEntityByID", tolua_DoWithID< cWorld, cEntity, &cWorld::DoWithEntityByID>);
tolua_function(tolua_S, "DoWithFurnaceAt", tolua_DoWithXYZ<cWorld, cFurnaceEntity, &cWorld::DoWithFurnaceAt>);
tolua_function(tolua_S, "DoWithPlayer", tolua_DoWith< cWorld, cPlayer, &cWorld::DoWithPlayer>);
tolua_function(tolua_S, "FindAndDoWithPlayer", tolua_DoWith< cWorld, cPlayer, &cWorld::FindAndDoWithPlayer>);

2
source/World.h
View File

@ -245,7 +245,7 @@ public:
bool ForEachEntityInChunk(int a_ChunkX, int a_ChunkZ, 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); // TODO: Exported in ManualBindings.cpp
bool DoWithEntityByID(int a_UniqueID, cEntityCallback & a_Callback); // Exported in ManualBindings.cpp
/// Compares clients of two chunks, calls the callback accordingly
void CompareChunkClients(int a_ChunkX1, int a_ChunkZ1, int a_ChunkX2, int a_ChunkZ2, cClientDiffCallback & a_Callback);