Amazed游戏学习一 程序框架

发现一个简单但是有意思的小游戏，玩法和HTC自带的那个滚球的游戏差不多。先看一下程序运行的效果：

整个程序结构非常简单，只有四个类，他们的关系如下所示：

整个界面都是通过View的onDraw画上去的，并没有使用布局控件，在AmazedView这个View类中基本上包含了所有的逻辑代码，能让整个游戏不断刷新，动起来的游戏引擎部分也在这里面，下面是从创建到运行的时序图：

其实整个游戏的引擎非常简单，就是onDraw——>gameTick——>(调用invalidate)——>onDraw形成一个循环

@Override public void onDraw(Canvas canvas) { // update our canvas reference. mCanvas = canvas; // clear the screen. mPaint.setColor(Color.WHITE); mCanvas.drawRect(0, 0, mCanvasWidth, mCanvasHeight, mPaint); // simple state machine, draw screen depending on the current state. switch (mCurState) { case GAME_RUNNING: // draw our maze first since everything else appears "on top" of it. mMaze.draw(mCanvas, mPaint); // draw our marble and hud. mMarble.draw(mCanvas, mPaint); // draw hud drawHUD(); break; case GAME_OVER: drawGameOver(); break; case GAME_COMPLETE: drawGameComplete(); break; case GAME_LANDSCAPE: drawLandscapeMode(); break; } gameTick(); }/** * Called every cycle, used to process current game state. */ public void gameTick() { // very basic state machine, makes a good foundation for a more complex // game. switch (mCurState) { case GAME_INIT: // prepare a new game for the user. initNewGame(); switchGameState(GAME_RUNNING); case GAME_RUNNING: // update our marble. if (!mWarning) updateMarble(); break; } // redraw the screen once our tick function is complete. invalidate(); }

下面是程序的源代码下载地址：http://download.youkuaiyun.com/detail/gaomatrix/3699889