cache_examp.js

// cacheEnum
CACHE.E_ROOM = 1;

CACHE.coreInit = function () {
	if (!global.my_caches) {
		CACHE[CACHE.E_ROOM] = Memory.rooms;
 		global.my_caches = true;
	}

	API_CACHE[CACHE.E_ROOM] = {};
};

CACHE.get = function (cacheEnum, key) {
	let res = CACHE[cacheEnum][key];
	if (!res) res = CACHE[cacheEnum][key] = {};
	return res;
};

CACHE.get_singleTick = function (cacheEnum, key) {
	let res = API_CACHE[cacheEnum][key];
	if (!res) res = API_CACHE[cacheEnum][key] = {};
	return res;
};



UTILS_ROOM.getSpawn = function (room) {
	return getCached(room.name, "spawn", () =>
		room.find(FIND_MY_STRUCTURES, {
			filter: { structureType: STRUCTURE_SPAWN }
		})
	);
}

UTILS_ROOM.getStorage = function (room) {
	return getCachedSingle(room.name, "storage", "storageId", () => 
			room.find(FIND_MY_STRUCTURES, {
				filter: { structureType: STRUCTURE_STORAGE }
			})
	);
};

function getCached(roomName, objName, findFunc) {
	let room_cacheAPI = CACHE.get_singleTick(CACHE.E_ROOM, roomName);
	if (!room_cacheAPI[objName]) {
		room_cacheAPI[objName] = findFunc();
	}

	return room_cacheAPI[objName];
};

function getCachedSingle(roomName, objName, idName, findFunc) {
	let room_cacheAPI = CACHE.get_singleTick(CACHE.E_ROOM, roomName);

	if (room_cacheAPI[objName] === undefined) {
		let cache = CACHE.get(CACHE.E_ROOM, roomName);
		if (!cache[idName]) {
			let found = findFunc();
			if (!found.length) {
				room_cacheAPI[objName] = null;
			} else {
				room_cacheAPI[objName] = found[0];
				cache[idName] = found[0].id;
			}
		} else {
			room_cacheAPI[objName] = Game.getObjectById(cache[idName]);
		}
	}

	return room_cacheAPI[objName];
};