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为了优化我的游戏,我将其设为网格。对象碱液在网格广场。这样做使我收集在区域中的所有对象可见的摄像头,并把它们在列表中的层:Android游戏中的Stutter(垃圾收集?)
public ArrayList<Entity> queryRect(OBB2D rect)
{
neighbourQueryObjs.clear();
ArrayList<Region> reg = determineNeighbourRegions(rect);
for(int i = 0; i < Entity.MAX_LAYERS; ++i)
{
for(Region r : reg)
{
for(Entity e : r.getStatic(i))
{
if(!neighbourQueryObjs.contains(e) && e.getRect().overlaps(rect))
{
neighbourQueryObjs.add(e);
}
}
for(Entity e : r.getDynamic(i))
{
if(!neighbourQueryObjs.contains(e) && e.getRect().overlaps(rect))
{
neighbourQueryObjs.add(e);
}
}
}
}
return neighbourQueryObjs;
}
这个伟大的工程。游戏速度非常快。我称这个evey帧为 问题是,每隔1或2秒左右,游戏就会冻结约2-300毫秒。
我怀疑它是垃圾收集。这可能吗?
有没有一种方法我可以预先分配这个东西,所以它永远不必使用GC?我不介意浪费记忆,记忆没有问题。
这里是我的游戏循环,算得上是它:
public void run() {
Canvas canvas;
long beginTime; // the time when the cycle begun
long timeDiff; // the time it took for the cycle to execute
int sleepTime; // ms to sleep (<0 if we're behind)
int framesSkipped; // number of frames being skipped
sleepTime = 0;
while (running)
{
canvas = null;
// try locking the canvas for exclusive pixel editing
// in the surface
try
{
// we have to make sure that the surface has been created
// if not we wait until it gets created
if (!holder.getSurface().isValid())
continue;
canvas = this.holder.lockCanvas();
synchronized (holder)
{
beginTime = System.currentTimeMillis();
framesSkipped = 0; // resetting the frames skipped
// update game state
update();
// render state to the screen
// draws the canvas on the panel
display(canvas);
// calculate how long did the cycle take
timeDiff = System.currentTimeMillis() - beginTime;
// calculate sleep time
sleepTime = (int)(FRAME_PERIOD - timeDiff);
if (sleepTime > 0)
{
// if sleepTime > 0 we're OK
try
{
// send the thread to sleep for a short period
// very useful for battery saving
Thread.sleep(sleepTime);
} catch (InterruptedException e) {}
}
while (sleepTime < 0 && framesSkipped < MAX_FRAME_SKIPS)
{
// we need to catch up
// update without rendering
update();
// add frame period to check if in next frame
sleepTime += FRAME_PERIOD;
framesSkipped++;
}
}
}
finally
{
// in case of an exception the surface is not left in
// an inconsistent state
if (canvas != null)
{
holder.unlockCanvasAndPost(canvas);
}
} // end finally
}
}
protected void onDrawTransformed(GraphicsContext g)
{
OBB2D view = g.getCamera().getCamRect(getWidth(), getHeight());
ArrayList<Entity> ents = world.queryRect(view);
for(Entity e : ents)
{
e.draw(g);
}
//city.draw(g);
//vehicle.draw(g);
}
我能做停止口吃?
感谢
您是否尝试过评论(而不是调用)'更新'? –
@Vladimir Lichonos仍然没有更新() – jmasterx
你可以在你的计算机上调用adb logcat来观察是否有关于GC收集/释放等的日志。如果你看到它很多,那么可能是因为GC和泄漏原因,否则一些东西释放你的代码。 –