axmol/cocos/scripting/lua/bindings/LuaBasicConversions.h

#ifndef __COCOS2DX_SCRIPTING_LUA_COCOS2DXSUPPORT_LUABAISCCONVERSIONS_H__
#define __COCOS2DX_SCRIPTING_LUA_COCOS2DXSUPPORT_LUABAISCCONVERSIONS_H__

extern "C" {
#include "lua.h"
#include "tolua++.h"
#include "tolua_fix.h"
}

#include "cocos2d.h"

using namespace cocos2d;

extern std::map<long, std::string>  g_luaType;

#if COCOS2D_DEBUG >=1
void luaval_to_native_err(lua_State* L,const char* msg,tolua_Error* err);
#endif

#define LUA_PRECONDITION( condition, ...) if( ! (condition) ) {														\
cocos2d::log("lua: ERROR: File %s: Line: %d, Function: %s", __FILE__, __LINE__, __FUNCTION__ );                                                         \
cocos2d::log(__VA_ARGS__);                                                  \
}                                                                           \

extern bool luaval_is_usertype(lua_State* L,int lo,const char* type, int def);
// to native
extern bool luaval_to_int32(lua_State* L,int lo,int* outValue);
extern bool luaval_to_uint32(lua_State* L, int lo, unsigned int* outValue);
extern bool luaval_to_uint16(lua_State* L,int lo,uint16_t* outValue);
extern bool luaval_to_boolean(lua_State* L,int lo,bool* outValue);
extern bool luaval_to_number(lua_State* L,int lo,double* outValue);
extern bool luaval_to_long_long(lua_State* L,int lo,long long* outValue);
extern bool luaval_to_std_string(lua_State* L, int lo, std::string* outValue);
extern bool luaval_to_long(lua_State* L,int lo, long* outValue);
extern bool luaval_to_ssize(lua_State* L,int lo, ssize_t* outValue);

extern bool luaval_to_point(lua_State* L,int lo,Point* outValue);
extern bool luaval_to_size(lua_State* L,int lo,Size* outValue);
extern bool luaval_to_rect(lua_State* L,int lo,Rect* outValue);
extern bool luaval_to_color3b(lua_State* L,int lo,Color3B* outValue);
extern bool luaval_to_color4b(lua_State* L,int lo,Color4B* outValue);
extern bool luaval_to_color4f(lua_State* L,int lo,Color4F* outValue);
extern bool luaval_to_affinetransform(lua_State* L,int lo, AffineTransform* outValue);
extern bool luaval_to_fontdefinition(lua_State* L, int lo, FontDefinition* outValue );
extern bool luaval_to_array(lua_State* L,int lo, Array** outValue);
extern bool luaval_to_dictionary(lua_State* L,int lo, Dictionary** outValue);
extern bool luaval_to_array_of_Point(lua_State* L,int lo,Point **points, int *numPoints);
extern bool luavals_variadic_to_array(lua_State* L,int argc, Array** ret);
extern bool luavals_variadic_to_ccvaluevector(lua_State* L, int argc, cocos2d::ValueVector* ret);

template <class T>
bool luavals_variadic_to_ccvector( lua_State* L, int argc, cocos2d::Vector<T>* ret)
{
    if (nullptr == L || argc == 0 )
        return false;
    
    bool ok = true;
    
    for (int i = 0; i < argc; i++)
    {
        if (lua_isuserdata(L, i + 2))
        {
            tolua_Error err;
            //Undo check
            if (!tolua_isusertype(L, i + 2, "Object", 0, &err))
            {
                ok = false;
                break;
            }
            T obj = static_cast<T>(tolua_tousertype(L, i + 2, nullptr));
            ret->pushBack(obj);
        }
    }
    
    return ok;
}

template <class T>
bool luaval_to_ccvector(lua_State* L, int lo , cocos2d::Vector<T>* ret)
{
    if (nullptr == L || nullptr == ret)
        return false;
    
    bool ok = true;
    
    tolua_Error tolua_err;
    if (!tolua_istable(L, lo, 0, &tolua_err) )
        ok = false;
    
    if (ok)
    {
        size_t len = lua_objlen(L, lo);
        for (int i = 0; i < len; i++)
        {
            lua_pushnumber(L, i + 1);
            lua_gettable(L, lo);
            
            if (lua_isnil(L, -1) || !lua_isuserdata(L, -1))
            {
                lua_pop(L, 1);
                continue;
            }
            

            T cobj = static_cast<T>(tolua_tousertype(L, -1, NULL) );
            if (NULL != cobj)
                ret->pushBack(cobj);
            
            lua_pop(L, 1);
        }
    }
    
    return ok;
}

extern bool luaval_to_ccvalue(lua_State* L, int lo, cocos2d::Value* ret);
extern bool luaval_to_ccvaluemap(lua_State* L, int lo, cocos2d::ValueMap* ret);
extern bool luaval_to_ccintvaluemap(lua_State* L, int lo, cocos2d::IntValueMap* ret);
extern bool luaval_to_ccvaluevector(lua_State* L, int lo, cocos2d::ValueVector* ret);


// from native
extern void point_to_luaval(lua_State* L,const Point& pt);
extern void size_to_luaval(lua_State* L,const Size& sz);
extern void rect_to_luaval(lua_State* L,const Rect& rt);
extern void color3b_to_luaval(lua_State* L,const Color3B& cc);
extern void color4b_to_luaval(lua_State* L,const Color4B& cc);
extern void color4f_to_luaval(lua_State* L,const Color4F& cc);
extern void affinetransform_to_luaval(lua_State* L,const AffineTransform& inValue);
extern void fontdefinition_to_luaval(lua_State* L,const FontDefinition& inValue);
extern void array_to_luaval(lua_State* L,Array* inValue);
extern void dictionary_to_luaval(lua_State* L, Dictionary* dict);

template <class T>
void ccvector_to_luaval(lua_State* L,const cocos2d::Vector<T>& inValue)
{
    lua_newtable(L);
    
    if (nullptr == L)
        return;
    
    int indexTable = 1;
    for (const auto& obj : inValue)
    {
        if (nullptr == obj)
            continue;
        

        if (nullptr != dynamic_cast<cocos2d::Object *>(obj))
        {
            long typeId = typeid(*obj).hash_code();
            auto iter = g_luaType.find(typeId);
            if (g_luaType.end() != iter)
            {
                lua_pushnumber(L, (lua_Number)indexTable);
                int ID = (obj) ? (int)obj->_ID : -1;
                int* luaID = (obj) ? &obj->_luaID : NULL;
                toluafix_pushusertype_ccobject(L, ID, luaID, (void*)obj,iter->second.c_str());
                lua_rawset(L, -3);
                obj->retain();
                ++indexTable;
            }
        }
    }
}

void ccvalue_to_luaval(lua_State* L,const cocos2d::Value& inValue);
void ccvaluemap_to_luaval(lua_State* L,const cocos2d::ValueMap& inValue);
void ccintvaluemap_to_luaval(lua_State* L, const cocos2d::IntValueMap& inValue);
void ccvaluevector_to_luaval(lua_State* L, const cocos2d::ValueVector& inValue);
#endif //__COCOS2DX_SCRIPTING_LUA_COCOS2DXSUPPORT_LUABAISCCONVERSIONS_H__