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Avoid creating objects/arrays in gdjs.RuntimeScene.prototype._updateObjectsVisibility

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This commit is contained in:
Florian Rival
2016-04-26 23:20:07 +02:00
parent 70c804e34a
commit 71f6cd529f
1 changed files with 19 additions and 12 deletions
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31
GDJS/Runtime/runtimescene.js
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@@ -224,6 +224,23 @@ gdjs.RuntimeScene.prototype.render = function() {
this._renderer.render();
};
gdjs.RuntimeScene.prototype._updateLayersCameraCoordinates = function() {
this._layersCameraCoordinates = this._layersCameraCoordinates || {};
for(var name in this._layers.items) {
if (this._layers.items.hasOwnProperty(name)) {
var theLayer = this._layers.items[name];
this._layersCameraCoordinates[name] = this._layersCameraCoordinates[name] ||
[0,0,0,0];
this._layersCameraCoordinates[name][0] = theLayer.getCameraX() - theLayer.getCameraWidth();
this._layersCameraCoordinates[name][1] = theLayer.getCameraY() - theLayer.getCameraHeight();
this._layersCameraCoordinates[name][2] = theLayer.getCameraX() + theLayer.getCameraWidth();
this._layersCameraCoordinates[name][3] = theLayer.getCameraY() + theLayer.getCameraHeight();
}
}
}
/**
* Called to update visibility of PIXI.DisplayObject of objects
* rendered on the scene.
@@ -249,21 +266,11 @@ gdjs.RuntimeScene.prototype._updateObjectsVisibility = function() {
} else {
//After first frame, optimise rendering by setting only objects
//near camera as visible.
var allLayers = this._layers.entries();
var layersCameraCoordinates = {};
for(var i = 0;i < allLayers.length;++i) {
var theLayer = allLayers[i][1];
layersCameraCoordinates[allLayers[i][0]] =
[theLayer.getCameraX() - theLayer.getCameraWidth(),
theLayer.getCameraY() - theLayer.getCameraHeight(),
theLayer.getCameraX() + theLayer.getCameraWidth(),
theLayer.getCameraY() + theLayer.getCameraHeight()];
}
this._updateLayersCameraCoordinates();
this._constructListOfAllInstances();
for( var i = 0, len = this._allInstancesList.length;i<len;++i) {
var object = this._allInstancesList[i];
var cameraCoords = layersCameraCoordinates[object.getLayer()];
var cameraCoords = this._layersCameraCoordinates[object.getLayer()];
if (!cameraCoords) continue;