static int lua_Technique_getParameter(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_TSTRING || lua_type(state, 2) == LUA_TNIL)) { // Get parameter 1 off the stack. const char* param1 = gameplay::ScriptUtil::getString(2, false); Technique* instance = getInstance(state); void* returnPtr = ((void*)instance->getParameter(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, "MaterialParameter"); lua_setmetatable(state, -2); } else { lua_pushnil(state); } return 1; } lua_pushstring(state, "lua_Technique_getParameter - 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; }