mymovingobject.java

Game_Anim_Java_MIDP_v1_0.zip详细的介绍了midp1.0中动画的制作

package example;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: Sensible Development Ltd</p>
 * @author Alan Newman
 * @version 1.0
 */

import javax.microedition.lcdui.*;
import java.util.Random;

public class MyMovingObject
{
  private static Image[] myImage;
  private static int x, y;
  private static int direction=1;
  private static int frame=0;

  private static int imageWidth, imageHeight;

  private final String CHARACTER_NAME="helicopter_strip";
  private Image[] imgCharacterStrip;
  private final int CHARACTER_FRAMES=3;
  private Image[] imgCharacter=new Image[CHARACTER_FRAMES];
  private int clipAreas[][];

  public MyMovingObject()
  {
    // load the images from the .jar
    imgCharacterStrip=getImages(CHARACTER_NAME,1);

    // all character frame images are assumed
    // to be the same height and width
    imageWidth=imgCharacterStrip[0].getWidth()/CHARACTER_FRAMES;
    imageHeight=imgCharacterStrip[0].getHeight();

    // set the intial position of the character.
    x=(MyCanvas.getCanvasWidth()/2)-(imageWidth/2);
    y=(MyCanvas.getCanvasHeight()/2)-(imageHeight/2);
  }

  public void setFrame()
  {
    if(++frame>=CHARACTER_FRAMES)
    {
      frame=0;
    }
  }

  public void draw(Graphics g)
  {
    if(imgCharacterStrip[0]!=null)
    {
      g.setClip(x,y,imageWidth,imageHeight);
      g.drawImage(imgCharacterStrip[0],x-(imageWidth*frame),y,g.LEFT | g.TOP);
      g.setClip(0,0,MyCanvas.getCanvasWidth(),MyCanvas.getCanvasHeight());
    }
  }
  private Image[] getImages(String imgName, int frames)
  {
    return ExampleMidlet.getImages(imgName, frames);
  }
}