www.pudn.com > spritebullet.rar > Plane.java

package spriteplane; 
 
import javax.microedition.lcdui.game.*; 
import javax.microedition.lcdui.*; 
 
public class Plane { 
  public static int MOVE = 4; 
  public Sprite plane; 
  private Graphics g = null; 
  int scnX, scnY; 
  int frameX, frameY; 
  int x, y; 
  boolean b = true; 
  Image img; 
  public Plane(Graphics g, int width, int height, int frameWidth, 
               int frameHeight) { 
    scnX = width; 
    scnY = height; 
    if (width > height) { 
      x = y = height / 2; 
    } 
    else { 
      x = y = width / 2; 
    } 
    this.g = g; 
    img = null; 
    this.frameX = frameWidth; 
    this.frameY = frameHeight; 
    try { 
      img = Image.createImage("/res/planes.png"); 
    } 
    catch (Exception e) { 
      System.out.println("io error"); 
    } 
    plane = new Sprite(img, frameWidth, frameHeight); 
  } 
 
  public void DrawSelf() { 
    if (b == true) { 
      plane.setPosition(x,y); 
      plane.paint(g); 
      //  bullet.paint(g);// 
      b = false; 
    } 
    else { 
      plane.paint(g); 
    } 
  } 
 
  public void moveLeft() { 
    getXY(); 
    if (x - MOVE > 0) { 
      plane.move(MOVE * -1, 0); 
    } 
  } 
 
  public void moveRight() { 
    getXY(); 
    if ( (x + MOVE + frameX) < scnX) { 
      plane.move(MOVE, 0); 
    } 
  } 
 
  public void moveNS() { 
    getXY(); 
    if ( (x - MOVE) > 0) { 
      plane.move(MOVE * -1, MOVE * -1); 
    } 
 
  } 
 
  public void moveUp() { 
    getXY(); 
    if (y - MOVE > 0) { 
      plane.move(0, MOVE * -1); 
    } 
  } 
 
  public void moveDown() { 
    getXY(); 
    if (y + MOVE + frameY < scnY) { 
      plane.move(0, MOVE); 
    } 
  } 
 
  public void getXY() { 
    x = plane.getX(); 
    y = plane.getY(); 
  } 
}