animationcanvas.java

来自「Simple Animation Sprite」· Java 代码 · 共 63 行

import javax.microedition.lcdui.*;
import javax.microedition.lcdui.game.*;

public class AnimationCanvas extends GameCanvas implements Runnable{
    //ukuran per image
    private static final int FRAME_WIDTH = 50;
    private static final int FRAME_HEIGHT = 50;
    
    private AnimationSprite spSpiral;
    private LayerManager lmgr;
    private boolean running = false;
    
    public AnimationCanvas(){
        super(true);
        try{
            spSpiral = new AnimationSprite(Image.createImage("/res/spiral.png"),FRAME_WIDTH,FRAME_HEIGHT);
            
            spSpiral.defineReferencePixel(FRAME_WIDTH / 2, FRAME_HEIGHT/2);
            
            spSpiral.setRefPixelPosition(getWidth() /2, getHeight()/2);
            
            lmgr = new LayerManager();
            lmgr.append(spSpiral);
        }catch(Exception e){
            System.out.println("Unnable to read png image");
        }
    }
    
    public void start(){
        running = true;
        Thread t = new Thread(this);
        t.start();
    }
    
    public void stop(){
        running=false;
    }
    
    public void run(){
        Graphics g=getGraphics();
        
        while(running){
            drawDisplay(g);
        
            try{
                Thread.sleep(150);
            }catch(InterruptedException ie){
                System.out.println("Thread exception");
            }
        }        
    }
    
    public void drawDisplay(Graphics g){
        spSpiral.nextFrame();
        
        lmgr.paint(g, 0, 0);
        
        flushGraphics();
    }

}