actiongamecanvasv2.java~2~

JAVA GAME it include collide detection

import javax.microedition.lcdui.*;
import java.io.*;
import javax.microedition.lcdui.game.*;   // Use GameCanvas of MIDP 2.0

public class ActionGameCanvasV2 extends GameCanvas implements Runnable{
  Thread actionThread;
  GameMIDletV2 parent;
  int millPerTick = 400;  // animation speed

  Sprite[] enemies;
  int enySeq[] = new int[] { 0, 1 };
  int enyStep;

  LayerManager lm;

  public ActionGameCanvasV2(GameMIDletV2 parent) {
    super(true);
    this.parent = parent;
    actionThread = new Thread(this);
    initCanvas();
    actionThread.start();
  }

  //===========================================================================
  public void initCanvas(){
    int i;
    try{
      lm = new LayerManager();
      //-----------------
      initEnemy();
      for (i=0; i<3; i++)
        lm.append(enemies[i]);
      //-----------------
      //  other character put here !
    }catch (Exception e) {
      System.out.println("Exceiption here" + e.getMessage());
      e.printStackTrace();
    }
  }   // end-of  initCanvas()


  //===========================================================================
  public void initEnemy(){
    int i;
    enemies = new Sprite[3];
    enemies[0] = createSprite("/infant.png", 32, 32);
    enemies[1] = createSprite("/thief.png", 32, 32);
    enemies[2] = createSprite("/wizard.png", 32, 32);
    System.out.println("Create Sprite OK.");

    for (i=0; i<3; i++){
      enemies[i].setFrameSequence( enySeq );      // SET frame sequence
      enemies[i].defineReferencePixel(16, 16);
      enemies[i].setPosition(60, i*(enemies[i].getHeight()+10)+10);
      enemies[i].setRefPixelPosition(enemies[i].getRefPixelX(), enemies[i].getRefPixelY());
    }
    enyStep = 5;
  }


  //===========================================================================
  private Sprite createSprite(String imgPath, int fWidth, int fHeight) {
    Image img = null;
    try {
      img = Image.createImage(imgPath);
    } catch (Exception e) {
      System.out.println("Error create Sprite");
    }
    return new Sprite(img, fWidth, fHeight);
  }

  //===========================================================================

  public void keyPressed(int keyCode) {
  }


  public void clearScreen(Graphics g){
    g.setColor(255,255,255);
    g.fillRect(0, 0, getWidth(), getHeight());
  }

  //===========================================================================
  public void drawGraphics(Graphics g) {
    int i;
    clearScreen(g);
    for (i=0; i<3; i++){
      enemies[i].setPosition(enemies[i].getX(), enemies[i].getY());
      enemies[i].nextFrame();
      enemies[i].setTransform(Sprite.TRANS_MIRROR);
    }
    // draw enemy here
    lm.paint(g, 0, 0);
    flushGraphics();
  }

  //===========================================================================
  public void updateEnemyPos(){
    for (int i=0; i<enemies.length; i++)
    {
      enemies[i].setPosition( enemies[i].getX()-enyStep,  enemies[i].getY());
      if (enemies[i].getX() < ( 0 - enemies[i].getWidth()/2 ) ){
        enemies[i].setPosition( getWidth(),
                                i*(enemies[i].getHeight()+10)+10);
      }
    }  // end-of for-loop
  }

  //===========================================================================
  public void run(){
    Graphics g = getGraphics();
    while (parent.running){
      // game running
      updateEnemyPos();
      //getInput();
      drawGraphics(g);
      try{
        Thread.sleep(millPerTick);
      } catch (InterruptedException e){
      }
    }  // end-of while-loop
  }  // end-of run()

}