Exemplo n.º 1
0
func checkThing(state *lua.State, argNum int) *Thing {
	userdata := state.CheckUdata(argNum, ThingMetaTableName)
	if userdata == nil {
		state.ArgError(argNum, "`Thing` expected")
	}

	var thingPtr *int64
	thingPtr = (*int64)(userdata)
	thingId := ThingId(*thingPtr)

	thing := World.ThingForId(thingId)
	if thing == nil {
		state.ArgError(argNum, "`Thing` argument is no longer valid")
	}

	return thing
}