bomb.java

来自「基于J2ME的手机游戏软件。可以控制游戏人物在地图上上下左右行走；可以在地图上放」· Java 代码 · 共 142 行

import javax.microedition.lcdui.Graphics;

public class Bomb
{
  private static final int PER_S_CYC = 20;

  private int posX;
  private int posY;
  private int mode;
  private int remainCyc;
  private World world;
  private Sprite sprite;
  private boolean blast;
  private boolean isShow;
  private int width;
  private int height;
  private boolean across;
  private int power;

  public Bomb(World world, int x, int y, int power)
  {
    posX = x;
    posY = y;
    this.mode = mode;
    remainCyc = PER_S_CYC * 2;
    this.world = world;
    sprite = new Sprite(world.getImageSet(), world.BOMB_STATIC, 0);
    blast = false;
    isShow = true;
    width = 32;
    height = 32;
    across = true;
    this.power = power;
    //	System.out.println(x + " " + y);
  }

  public void cycle()
  {
    remainCyc--;
    if (remainCyc <= 0)
    {
      blast = true;
      world.addBlast(posX, posY, power);
    }
    else
    {
      blast = false;
    }
    if (across)
    {
      int actorWidth = world.getActor().getWidth();
      int actorHeight = world.getActor().getHeight();
      int ax_1 = world.getActor().getX();
      int ay_1 = world.getActor().getY();
      int ax_2 = ax_1 + actorWidth - 1;
      int ay_2 = ay_1;
      int ax_3 = ax_1 + actorWidth - 1;
      int ay_3 = ay_1 + actorHeight - 1;
      int ax_4 = ax_1;
      int ay_4 = ay_1 + actorHeight - 1;
      boolean buf_1 = (world.getTileX(ax_1, ay_1) != world.getTileX(posX, posY)
                       ||
                       world.getTileY(ax_1, ay_1) != world.getTileY(posX, posY));
      boolean buf_2 = (world.getTileX(ax_2, ay_2) != world.getTileX(posX, posY)
                       ||
                       world.getTileY(ax_2, ay_2) != world.getTileY(posX, posY));
      boolean buf_3 = (world.getTileX(ax_3, ay_3) != world.getTileX(posX, posY)
                       ||
                       world.getTileY(ax_3, ay_3) != world.getTileY(posX, posY));
      boolean buf_4 = (world.getTileX(ax_4, ay_4) != world.getTileX(posX, posY)
                       ||
                       world.getTileY(ax_4, ay_4) != world.getTileY(posX, posY));
      if (buf_1 && buf_2 && buf_3 && buf_4)
      {
        across = false;
        //	System.out.println("false");
      }
    }
    int viewX = world.getViewX();
    int viewY = world.getViewY();
    if (posX - viewX > world.getViewWidth() + 30
        || posY - viewY > world.getViewHeight() + 30
        || posX < viewX - 30 || posY < viewY - 30)
    {
      isShow = false;
    }
    else
    {
      isShow = true;
    }
    sprite.cycle();
  }

  public void render(Graphics gra)
  {
    if (isShow)
    {
      sprite.draw(gra, posX - world.getViewX()
                  , posY - world.getViewY()
                  , Graphics.TOP | Graphics.LEFT);
      gra.setColor(0xff0000);
      gra.drawString(remainCyc / PER_S_CYC + "s"
                     , posX - world.getViewX() + width / 2
                     , posY - world.getViewY() + height / 2
                     , Graphics.TOP | Graphics.LEFT);
      gra.setColor(0x000000);
      gra.drawRect(posX - world.getViewX(), posY - world.getViewY()
                   , width - 1, height - 1);
    }
  }

  public boolean isBlast()
  {
    return blast;
  }

  public int getWidth()
  {
    return width;
  }

  public int getHeight()
  {
    return height;
  }

  public int getX()
  {
    return posX;
  }

  public int getY()
  {
    return posY;
  }

  public boolean getAcross()
  {
    return across;
  }
}