Check out the LunarLander example that comes with the Android SDK. It is a very simple game that runs in it's own thread (separate from the UI thread). 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 <[email protected]> wrote: > A seperate thread should 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 a Thread. > > 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 <[email protected]> wrote: > > > > > I want to do the drawing in another thread to 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 the thread sleep when not drawing? > > where should I start the thread? > > > 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(View v, 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(); > > Thread t = new Thread(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 - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
