예제 #1
0
int lua_VertexFormat_getElement(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA) &&
                lua_type(state, 2) == LUA_TNUMBER)
            {
                // Get parameter 1 off the stack.
                unsigned int param1 = (unsigned int)luaL_checkunsigned(state, 2);

                VertexFormat* instance = getInstance(state);
                void* returnPtr = (void*)&(instance->getElement(param1));
                if (returnPtr)
                {
                    gameplay::ScriptUtil::LuaObject* object = (gameplay::ScriptUtil::LuaObject*)lua_newuserdata(state, sizeof(gameplay::ScriptUtil::LuaObject));
                    object->instance = returnPtr;
                    object->owns = false;
                    luaL_getmetatable(state, "VertexFormatElement");
                    lua_setmetatable(state, -2);
                }
                else
                {
                    lua_pushnil(state);
                }

                return 1;
            }

            lua_pushstring(state, "lua_VertexFormat_getElement - Failed to match the given parameters to a valid function signature.");
            lua_error(state);
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}