isotest.java

来自「java learn PPT java learn PPT java learn」· Java 代码 · 共 124 行

     import java.applet.*;
     import java.awt.*;

     public class IsoTest extends Applet implements Runnable
     {
          // 动画线程
          private Thread animation;

          private VolatileGraphics offscreen;

          // 一个等大场景
          private IsoScene scene;
 
          public void init()
          {               
               // 初始化场景
               scene = new IsoScene(getBounds());

               // 创建IsoTileGroup
               IsoTileGroup tileGroup = new IsoTileGroup();
               tileGroup.init(this);

               int x = -getSize().width *2 - (IsoTileGroup.TILE_WIDTH /2);
               int y = -getSize().height*2 - (IsoTileGroup.TILE_HEIGHT/2);

               int width  = getSize().width *4;
               int height = getSize().height*4;

               // 用iso砖块填充场景-注意offset标志是如何让其他的行偏移产生互锁的
               IsoTile tile;
               boolean offset = false;
               while(y < height)
               {
                    while(x < width)
                    {
                         tile = new IsoTile(tileGroup);
                         tile.setPos(x, y);

                         // 将砖块作为非参照物添加进来
                         scene.add(tile, false);
                         x += IsoTileGroup.TILE_WIDTH;
                    }

                    offset = !offset;
                    if(offset) x = -getSize().width*2;
                    else       x = -getSize().width*2 - (IsoTileGroup.TILE_WIDTH /2);

                    y += IsoTileGroup.TILE_HEIGHT/2;
               }

               // 创建一个IsoManGroup并创建一个IsoMan角色             
               IsoManGroup group = new IsoManGroup();
               group.init(this);

               IsoMan isoMan = new IsoMan(group);
               isoMan.setPos(getSize().width/2, getSize().height/2);

               // 将isoman作为参照物添加到场景中
               scene.add(isoMan, true);
 
               // 注册场景让它接收键盘事件
               addKeyListener(scene);

               offscreen = new VolatileGraphics(this);

               animation = new Thread(this);
               
               AnimationStrip.observer = this;

          }   // init


          public void start()
          {
              // 启动动画线程
              animation.start();
          }

          public void stop() 
          {
              animation = null;
          }

          public void run() 
          {
               Thread t = Thread.currentThread();
	       while (t == animation)
               {
                    repaint();

                    try
                    {
                         Thread.sleep(10);
                    }
                    catch(InterruptedException e) 
                    {
                         break;
                    }
                }              

           }   // run

           public void update(Graphics g)
           {
                // 更新场景
                scene.update();

                paint(g);
           }
 
           public void paint(Graphics g) 
           {
               Graphics2D bg = (Graphics2D)offscreen.getValidGraphics();
               bg.setPaint(Color.WHITE);
               bg.clearRect(0, 0, getSize().width, getSize().height);
         
               // 绘制场景
               scene.paint(bg);
               
               g.drawImage(offscreen.getBuffer(), 0, 0, this);

           }    // paint

     }     // IsoTest