Initial commit.

frontend/build-templates/wechatgame/libs/engine/Game.js

@@ -0,0 +1,59 @@
+var _frameRate = 60;
+cc.game.setFrameRate = function (frameRate) {
+    _frameRate = frameRate;
+    if (wx.setPreferredFramesPerSecond) {
+        wx.setPreferredFramesPerSecond(frameRate);
+    }
+    else {
+        if (this._intervalId) {
+            window.cancelAnimFrame(this._intervalId);
+        }
+        this._intervalId = 0;
+        this._paused = true;
+        this._setAnimFrame();
+        this._runMainLoop();
+    }
+};
+
+cc.game._setAnimFrame = function () {
+    this._lastTime = performance.now();
+    this._frameTime = 1000 / _frameRate;
+
+    if (_frameRate !== 60 && _frameRate !== 30) {
+        window.requestAnimFrame = this._stTime;
+        window.cancelAnimFrame = this._ctTime;
+    }
+    else {
+        window.requestAnimFrame = window.requestAnimationFrame || this._stTime;
+        window.cancelAnimFrame = window.cancelAnimationFrame || this._ctTime;
+    }
+};
+
+cc.game.getFrameRate = function () {
+    return _frameRate;
+};
+
+cc.game._runMainLoop = function () {
+    var self = this, callback, config = self.config,
+        director = cc.director,
+        skip = true, frameRate = config.frameRate;
+
+    cc.debug.setDisplayStats(config.showFPS);
+
+    callback = function () {
+        if (!self._paused) {
+            self._intervalId = window.requestAnimFrame(callback);
+            if (frameRate === 30) {
+                if (skip = !skip) {
+                    return;
+                }
+            }
+            director.mainLoop();
+        }
+    };
+
+    self._intervalId = window.requestAnimFrame(callback);
+    self._paused = false;
+};
+// wechat game platform not support this api
+cc.game.end = function () {};