I found that too with the LunarLander model - especially when trying
to develop a touch and drag style game. Do you know of any other
example app/code that demonstrates a better method?
On Jul 22, 3:56 pm, Micah <mi...@ourmailbox.net> wrote:
> Check out the LunarLander example that comes with the Android SDK. It
> is a very simple game that runs in it's ownthread(separate from the
> UIthread). While it's not my favorite design (too much locking) for
> a large game, for most cell phone games (ie: simple) it gets the job
> done.
>
> On Jul 22, 5:31 am, Streets Of Boston <flyingdutc...@gmail.com> wrote:
>
> > A seperatethreadshould not implement/extend SurfaceView or any other
> >view.
>
> > You still create your GameView as you had before, but you add a new
> > class called (for example) GameRenderer.
> > This GameRenderer will implement aThread.
>
> > The GameRenderer will execute its 'run()' method at some point. This
> > method should contain a 'while' loop, that only stops/pauses when the
> > game is halting (e.g. halt when onPause is called on your activity;
> > stop when onDestroy is called).
>
> > In the while loop, get hold of the GameView (actually; get hold of a
> > SurfaceHolder from your GameView) lock it and obtain a Canvas from it
> > when you're about to draw onto it.
> > When done, unlock the canvas.
>
> > Search a little more on these forums and you'll find more info.
>
> > On Jul 22, 6:15 am, klirr <haskell...@gmail.com> wrote:
>
> > > I want to do the drawing in anotherthreadto speed up the game(it is
> > > way to slow right now). I was told to do this but don't quite
> > > understand why that would speed things up.
> > > Is it GameView that should implement Runnable?
> > > Should I make thethreadsleep when not drawing?
> > > where should I start thethread?
>
> > > package com.android.WWS;
>
> > > import android.app.Activity;
> > > import android.content.Context;
> > > import android.graphics.*;
> > > import android.os.Bundle;
> > > import android.view.SurfaceView;
> > > import android.view.KeyEvent;
> > > import android.view.View;
> > > import android.view.View.OnKeyListener;
> > > import java.lang.Runnable;
> > > import java.lang.Thread;
>
> > > public class WWS extends Activity {
>
> > > @Override
> > > protected void onCreate(Bundle savedInstanceState) {
> > > super.onCreate(savedInstanceState);
> > > GameView gv = new GameView(this);
> > > setContentView(gv);
> > > gv.setOnKeyListener(new OnKeyListener() {
> > > public boolean onKey(Viewv, int keyCode, KeyEvent event)
> > > {
> > > GameView gv = (GameView) v;
> > > if (keyCode == KeyEvent.KEYCODE_DPAD_UP) {
> > > gv.decrY(3);
> > > v.invalidate();
> > > } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT) {
> > > gv.decrX(3);
> > > v.invalidate();
> > > } else if (keyCode == KeyEvent.KEYCODE_DPAD_DOWN) {
> > > gv.incrY(3);
> > > v.invalidate();
> > > } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
> > > gv.incrX(3);
> > > v.invalidate();
> > > }
> > > return true;
> > > }
> > > });
> > > }
>
> > > private static class GameView extends SurfaceView implements
> > > Runnable {
> > > private Paint mPaint = new Paint();
> > > private int x;
> > > private int y;
>
> > > public GameView(Context context) {
> > > super(context);
> > > x = 135;
> > > y = 303;
> > > setWillNotDraw(false);
> > > setFocusable(true);
> > > requestFocus();
> > > Threadt = newThread(this);
> > > t.start();
> > > }
>
> > > public void run() {}
>
> > > @Override
> > > public void onDraw(Canvas canvas) {
> > > Paint paint = mPaint;
> > > canvas.translate(10, 10);
> > > canvas.drawColor(Color.rgb(184,134,11));
> > > paint.setColor(Color.rgb(107,142,35));
> > > paint.setStrokeWidth(1);
> > > canvas.drawRect(x, y, x+30, y+7, paint);
> > > canvas.drawRect(x+10, y+7, x+20, y+27, paint);
> > > canvas.drawRect(x+5, y+27, x+25, y+32, paint);
> > > }
>
> > > public void decrY(int length) {
> > > y -= length;
> > > }
>
> > > public void incrY(int length) {
> > > y += length;
> > > }
>
> > > public void decrX(int length) {
> > > x -= length;
> > > }
>
> > > public void incrX(int length) {
> > > x += length;
> > > }
>
> > > }
>
> > > }- Hide quoted text -
>
> > > - Show quoted text -
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