521 lines
11 KiB
C++
521 lines
11 KiB
C++
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// ManualBindings.h
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// Declares the cManualBindings class used as a namespace for functions exported to the Lua API manually
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#pragma once
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#include "LuaState.h"
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// fwd:
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struct tolua_Error;
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/** Provides namespace for the bindings. */
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class cManualBindings
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{
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public:
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/** Binds all the manually implemented functions to tolua_S. */
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static void Bind(lua_State * tolua_S);
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protected:
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/** Binds the manually implemented cNetwork-related API to tolua_S.
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Implemented in ManualBindings_Network.cpp. */
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static void BindNetwork(lua_State * tolua_S);
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/** Binds the manually implemented cRankManager glue code to tolua_S.
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Implemented in ManualBindings_RankManager.cpp. */
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static void BindRankManager(lua_State * tolua_S);
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/** Binds the manually implemented cWorld API functions to tolua_S.
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Implemented in ManualBindings_World.cpp. */
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static void BindWorld(lua_State * tolua_S);
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/** Binds the manually implemented cBlockArea API functions to tlua_S.
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Implemented in ManualBindings_BlockArea.cpp. */
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static void BindBlockArea(lua_State * tolua_S);
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public:
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// Helper functions:
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static cPluginLua * GetLuaPlugin(lua_State * L);
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static int tolua_do_error(lua_State * L, const char * a_pMsg, tolua_Error * a_pToLuaError);
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static int lua_do_error(lua_State * L, const char * a_pFormat, ...);
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/** Binds the DoWith(ItemName) functions of regular classes. */
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*DoWithFn)(const AString &, cFunctionRef<bool(Ty2 &)>)
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>
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static int DoWith(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamString(2) ||
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!L.CheckParamFunction(3)
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)
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{
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return 0;
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}
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// Get parameters:
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Ty1 * Self;
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AString ItemName;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, ItemName, FnRef);
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if (Self == nullptr)
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Invalid 'self'");
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}
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if (ItemName.empty() || (ItemName[0] == 0))
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a non-empty string for parameter #1");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #2");
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}
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// Call the DoWith function:
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bool res = (Self->*DoWithFn)(ItemName, [&](Ty2 & a_Item)
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{
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bool ret = false;
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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/** Template for static functions DoWith(ItemName), on a type that has a static ::Get() function. */
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*DoWithFn)(const AString &, cFunctionRef<bool(Ty2 &)>)
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>
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static int StaticDoWith(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamString(2) ||
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!L.CheckParamFunction(3)
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)
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{
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return 0;
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}
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// Get parameters:
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AString ItemName;
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cLuaState::cRef FnRef;
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L.GetStackValues(2, ItemName, FnRef);
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if (ItemName.empty() || (ItemName[0] == 0))
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a non-empty string for parameter #1");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #2");
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}
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// Call the DoWith function:
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bool res = (Ty1::Get()->*DoWithFn)(ItemName, [&](Ty2 & a_Item)
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{
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bool ret = false;
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*DoWithFn)(UInt32, cFunctionRef<bool(Ty2 &)>)
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>
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static int DoWithID(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamNumber(2) ||
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!L.CheckParamFunction(3)
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)
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{
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return 0;
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}
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// Get parameters:
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Ty1 * Self = nullptr;
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UInt32 ItemID = 0;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, ItemID, FnRef);
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if (Self == nullptr)
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Invalid 'self'");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #2");
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}
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// Call the DoWith function:
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bool res = (Self->*DoWithFn)(ItemID, [&](Ty2 & a_Item)
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{
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bool ret = false;
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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/** Template for the bindings for the DoWithXYZAt(X, Y, Z) functions that don't need to check their coords. */
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template <
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class SELF,
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class ITEM,
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bool (SELF::*DoWithFn)(int, int, int, cFunctionRef<bool(ITEM &)>)
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>
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static int DoWithXYZ(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamNumber(2, 4) ||
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!L.CheckParamFunction(5) ||
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!L.CheckParamEnd(6)
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)
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{
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return 0;
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}
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// Get parameters:
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SELF * Self = nullptr;
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int BlockX = 0;
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int BlockY = 0;
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int BlockZ = 0;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, BlockX, BlockY, BlockZ, FnRef);
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if (Self == nullptr)
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Invalid 'self'");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #5");
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}
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// Call the DoWith function:
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bool res = (Self->*DoWithFn)(BlockX, BlockY, BlockZ, [&](ITEM & a_Item)
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{
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bool ret = false;
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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/** Template for the bindings for the DoWithXYZAt(X, Y, Z) functions that need to check their coords. */
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template <
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class SELF,
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class ITEM,
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bool (SELF::*DoWithFn)(int, int, int, cFunctionRef<bool(ITEM &)>),
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bool (SELF::*CoordCheckFn)(int, int, int) const
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>
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static int DoWithXYZ(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamNumber(2, 4) ||
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!L.CheckParamFunction(5) ||
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!L.CheckParamEnd(6)
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)
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{
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return 0;
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}
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// Get parameters:
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SELF * Self = nullptr;
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int BlockX = 0;
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int BlockY = 0;
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int BlockZ = 0;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, BlockX, BlockY, BlockZ, FnRef);
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if (Self == nullptr)
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Invalid 'self'");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #5");
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}
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if (!(Self->*CoordCheckFn)(BlockX, BlockY, BlockZ))
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{
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return lua_do_error(tolua_S, Printf("Error in function call '#funcname#': The provided coordinates ({%d, %d, %d}) are not valid",
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BlockX, BlockY, BlockZ
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).c_str());
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}
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// Call the DoWith function:
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bool res = (Self->*DoWithFn)(BlockX, BlockY, BlockZ, [&](ITEM & a_Item)
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{
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bool ret = false;
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*ForEachFn)(int, int, cFunctionRef<bool(Ty2 &)>)
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>
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static int ForEachInChunk(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamNumber(2, 3) ||
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!L.CheckParamFunction(4) ||
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!L.CheckParamEnd(5)
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)
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{
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return 0;
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}
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// Get parameters:
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Ty1 * Self = nullptr;
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int ChunkX = 0;
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int ChunkZ = 0;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, ChunkX, ChunkZ, FnRef);
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if (Self == nullptr)
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Invalid 'self'");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #4");
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}
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// Call the DoWith function:
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bool res = (Self->*ForEachFn)(ChunkX, ChunkZ, [&](Ty2 & a_Item)
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{
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bool ret = false;
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*ForEachFn)(const cBoundingBox &, cFunctionRef<bool(Ty2 &)>)
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>
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static int ForEachInBox(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamUserType(1, "cWorld") ||
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!L.CheckParamUserType(2, "cBoundingBox") ||
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!L.CheckParamFunction(3) ||
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!L.CheckParamEnd(4)
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)
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{
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return 0;
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}
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// Get the params:
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Ty1 * Self = nullptr;
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cBoundingBox * Box = nullptr;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, Box, FnRef);
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if ((Self == nullptr) || (Box == nullptr))
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{
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LOGWARNING("Invalid world (%p) or boundingbox (%p)", static_cast<void *>(Self), static_cast<void *>(Box));
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L.LogStackTrace();
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return 0;
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #2");
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}
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bool res = (Self->*ForEachFn)(*Box, [&](Ty2 & a_Item)
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{
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bool ret = false;
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if (!L.Call(FnRef, &a_Item, cLuaState::Return, ret))
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{
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LOGWARNING("Failed to call Lua callback");
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L.LogStackTrace();
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return true; // Abort enumeration
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}
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return ret;
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}
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);
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// Push the result as the return value:
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L.Push(res);
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return 1;
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}
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*ForEachFn)(cFunctionRef<bool(Ty2 &)>)
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>
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static int ForEach(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamFunction(2) ||
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!L.CheckParamEnd(3)
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)
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{
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return 0;
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}
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// Get the params:
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Ty1 * Self = nullptr;
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cLuaState::cRef FnRef;
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L.GetStackValues(1, Self, FnRef);
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if (Self == nullptr)
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Invalid 'self'.");
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}
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #1");
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}
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// Call the enumeration:
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bool res = (Self->*ForEachFn)([&](Ty2 & a_Item)
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{
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bool ret = false; // By default continue the enumeration
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the return value:
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L.Push(res);
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return 1;
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}
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/** Implements bindings for ForEach() functions in a class that is static (has a ::Get() static function). */
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template <
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class Ty1,
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class Ty2,
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bool (Ty1::*ForEachFn)(cFunctionRef<bool(Ty2 &)>)
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>
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static int StaticForEach(lua_State * tolua_S)
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{
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// Check params:
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cLuaState L(tolua_S);
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if (
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!L.CheckParamFunction(2) ||
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!L.CheckParamEnd(3)
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)
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{
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return 0;
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}
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// Get the params:
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cLuaState::cRef FnRef(L, 2);
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if (!FnRef.IsValid())
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{
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return lua_do_error(tolua_S, "Error in function call '#funcname#': Expected a valid callback function for parameter #1");
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}
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// Call the enumeration:
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bool res = (Ty1::Get()->*ForEachFn)([&](Ty2 & a_Item)
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{
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bool ret = false; // By default continue the enumeration
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L.Call(FnRef, &a_Item, cLuaState::Return, ret);
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return ret;
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}
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);
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// Push the return value:
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L.Push(res);
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return 1;
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}
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};
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