From 02247e743b83669e2d799111fc10a4772de66dfc Mon Sep 17 00:00:00 2001 From: sanine-a Date: Tue, 9 May 2023 12:24:28 -0500 Subject: add ecs.Accessor helper and node _child hierarchy --- honey/ecs/ecs.lua | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'honey/ecs/ecs.lua') diff --git a/honey/ecs/ecs.lua b/honey/ecs/ecs.lua index b0409e4..301ed36 100644 --- a/honey/ecs/ecs.lua +++ b/honey/ecs/ecs.lua @@ -271,4 +271,29 @@ function SystemDb.removeSystem(self, id) end +--===== Access helper =====-- + + +function Accessor(db, id) + local tbl = { + __db = db, + __id = id, + } + + setmetatable(tbl, { + __index=function(self, key) + return self.__db:getComponent(self.__id, key) + end, + __newindex=function(self, key, value) + self.__db:addComponent(self.__id, key, value) + end, + __tostring=function(self) + return string.format("Accessor<%s>", self.__id) + end, + }) + + return tbl +end + + return module -- cgit v1.2.1