for 1.3.4 Enable TTL Cache

liply_EnableTTLCache.js

(function(){
    var before = Date.now();
    var TTL_SEC = 5.0;

    var Scene_Base_prototype_terminate = Scene_Base.prototype.terminate;
    Scene_Base.prototype.terminate = function (){
        var current = Date.now();
        SceneManager.updateManagers(1, (current - before));
        before = current;

        return Scene_Base_prototype_terminate.call(this);
    };

    ImageManager.cache._lastRemovedEntries = [];

    var ImageManager_loadSystem = ImageManager.loadSystem;
    ImageManager.loadSystem = function(filename, hue){
        var bitmap = ImageManager_loadSystem.call(this, filename, hue);
        bitmap.__system = true;
        return bitmap;
    };

    var CacheEntry_prototype_isStillAlive = CacheEntry.prototype.isStillAlive;
    CacheEntry.prototype.isStillAlive = function () {
        return CacheEntry_prototype_isStillAlive.call(this) || this.item.__system;
    };


    CacheMap.prototype.setItem = function (key, item) {
        var entry = new CacheEntry(this, key, item);
        entry.setTimeToLive(0, TTL_SEC * 1000);
        return entry.allocate();
    };

    var Graphics_createRenderer = Graphics._createRenderer;
    Graphics._createRenderer = function(){
        Graphics_createRenderer.call(this);

        this._renderer.textureGC.maxIdle = TTL_SEC * 60;
    }
})();