l.java~1~

你看到了什么？一群苍蝇在飞舞？这是简简单单的动画么？这些家伙是“活”的么？我可以告诉你

      StartDepth =13;
      ruleNumber =4;
      sStart = "K";
      sRule[0][0]="S";
      sRule[0][1]="[+++G][---H]FFS";
      sRule[1][0]="G";
      sRule[1][1]="+G[-FH]F";
      sRule[2][0]="H";
      sRule[2][1]="-H[+FG]F";
      sRule[3][0]="K";
      sRule[3][1]="FSF";
      //reinit();
    }
    else if(k==4){   //枝
      pStartX =200;
      pStartY =5;
      direction_init =90;
      lengthF =1.5;
      rotation =-25.7341;
      StartDepth =6;
      ruleNumber =1;
      sStart = "F";
      sRule[0][0]="F";
      sRule[0][1]="F[+F]F[-F]F";
      //reinit();
    }
    else if(k==5){      //星
      pStartX =15;
      pStartY =200;
      direction_init =0;
      lengthF =4.5;
      rotation =-60;
      StartDepth =5;
      ruleNumber =1;
      sStart = "F";
      sRule[0][0]="F";
      sRule[0][1]="F-F++F-F";
      //reinit();
    }
    else if(k==6){      //蒲公英
      pStartX =200;
      pStartY =10;
      direction_init =90;
      lengthF =0.37;
      rotation =30;
      StartDepth = 10;
      ruleNumber =2;
      sStart = "Y";
      sRule[0][0]="X";
      sRule[0][1]="X[-FFF][+FFF]FX";
      sRule[1][0]="Y";
      sRule[1][1]="YFX[+Y][-Y]";
      //reinit();
    }
    else if(k==7){      //灌木丛
      pStartX =250;
      pStartY =20;
      direction_init =90;
      lengthF =3.5;
      rotation =-30;
      StartDepth =6;
      ruleNumber =1;
      sStart = "F";
      sRule[0][0]="F";
      sRule[0][1]="FF-[-F+F+F]+[+F-F-F]";
      //reinit();
    }
    else if(k==8){    //棕榈
      pStartX =200;
      pStartY =20;
      direction_init =90;
      lengthF =5.6;
      rotation =-18;
      StartDepth =12;
      ruleNumber =5;
      sStart = "SLFFF";
      sRule[0][0]="S";
      sRule[0][1]="[+++H][---G]TS";
      sRule[1][0]="G";
      sRule[1][1]="+H[-G]L";
      sRule[2][0]="H";
      sRule[2][1]="-G[+H]L";
      sRule[3][0]="T";
      sRule[3][1]="TL";
      sRule[4][0]="L";
      sRule[4][1]="[-FFF][+FFF]F";
      //reinit();
    }
    else if(k==9){      //开花的草
      pStartX =200;
      pStartY =10;
      direction_init =90;
      lengthF =3;
      rotation =-30;
      StartDepth = 8;
      ruleNumber =2;
      sStart = "G";
      sRule[0][0]="G";
      sRule[0][1]="[+FGF][-FGF]XG";
      sRule[1][0]="X";
      sRule[1][1]="XFX";
      //reinit();
    }
    else if(k==10){      //灌木丛
      pStartX =370;
      pStartY =30;
      direction_init =90;
      lengthF =2;
      rotation =-1.2;
      StartDepth =6;
      ruleNumber =1;
      sStart = "F";
      sRule[0][0]="F";
      sRule[0][1]="F[+++++++++++++++++++++++++F]-F[-------------------------F]F";
      //reinit();
    }
    else if(k==11){      //杨柳
      pStartX =170;
      pStartY =0;
      direction_init =90;
      lengthF =7;
      rotation =-22.5;
      StartDepth =5;
      ruleNumber =1;
      sStart = "F";
      sRule[0][0]="F";
      sRule[0][1]="FF+[+F-F-F]-[-F+F+F]";
      //reinit();
    }
    else if(k==12){      //Juliet集
      pStartX =95;
      pStartY =250;
      direction_init =0;
      lengthF =1;
      rotation =90;
      StartDepth = 17;
      ruleNumber =2;
      sStart = "X";
      sRule[0][0]="X";
      sRule[0][1]="X+YF+";
      sRule[1][0]="Y";
      sRule[1][1]="-FX-Y";
      //reinit();
    }
    else if(k==13){      //砖墙
      pStartX =30;
      pStartY =40;
      direction_init =0;
      lengthF =13;
      rotation =90;
      StartDepth = 4;
      ruleNumber =2;
      sStart = "X";
      sRule[0][0]="X";
      sRule[0][1]="XFYFX+F+YFXFY-F-XFYFX";
      sRule[1][0]="Y";
      sRule[1][1]="YFXFY-F-XFYFX+F+YFXFY";
      //reinit();
    }
    else if(k==14){      //砖砌X形
      pStartX =80;
      pStartY =90;
      direction_init =0;
      lengthF =3.5;
      rotation =90;
      StartDepth =4;
      ruleNumber =1;
      sStart = "F+F+F+F";
      sRule[0][0]="F";
      sRule[0][1]="F+F-F-FF+F+F-F";
      //reinit();
    }
    else if(k==15){      //三角绕三角
      pStartX =200;
      pStartY =10;
      direction_init =0;
      lengthF =1.7;
      rotation =-60;
      StartDepth = 6;
      ruleNumber =2;
      sStart = "X";
      sRule[0][0]="X";
      sRule[0][1]="--FXF++FXF++FXF--";
      sRule[1][0]="F";
      sRule[1][1]="FFF";
      //reinit();
    }
    else if(k==16){      //一笔迷宫
      pStartX =50;
      pStartY =30;
      direction_init =0;
      lengthF =10;
      rotation =-90;
      StartDepth = 6;
      ruleNumber =2;
      sStart = "X";
      sRule[0][0]="X";
      sRule[0][1]="-YF+XFX+FY-";
      sRule[1][0]="Y";
      sRule[1][1]="+XF-YFY-FX+";
      //reinit();
    }
    else if(k==17){      //树
      pStartX =200;
      pStartY =10;
      direction_init =90;
      lengthF =0.35;
      rotation =30;
      StartDepth = 10;
      ruleNumber =2;
      sStart = "X";
      sRule[0][0]="X";
      sRule[0][1]="F[+X]F[-X]+X";
      sRule[1][0]="F";
      sRule[1][1]="FF";
      //reinit();
    }
    else if(k==18){      //对称的树
      pStartX =200;
      pStartY =10;
      direction_init =90;
      lengthF =0.35;
      rotation =30;
      StartDepth = 10;
      ruleNumber =2;
      sStart = "X";
      sRule[0][0]="X";
      sRule[0][1]="F[+X][-X]FX";
      sRule[1][0]="F";
      sRule[1][1]="FF";
      //reinit();
    }

    reinit();
  }
public void start(){
  if (runner == null){
    runner= new Thread(this);
    runner.start();
  }
}

public void stop(){
  if (runner!=null){
    runner.stop();
    runner=null;
    start=false;
    running = false;
  }
}
public void run() {
  while(true){
    if(start&&(!running)){
      running=true;
      start=false;
      bStop=false;
        g=this.getGraphics();
        g.setColor(new Color(110,170,60)); // 定义画笔的颜色
        g.clearRect(0,0,400,450);
        a = new doublePoint(pStartX,pStartY); // 起始点
        direction = direction_init;        // 起始的方向
        turtleGraphic(g, sStart, StartDepth);  // 核心程序
      running=false;
    }
  }

}
public boolean action(Event ev, Object arg){
 if ( ev.target instanceof Button) {//instanceof实例
        String button = (String) arg;
        if (button.equals("单步迭代")) {
            btnStep.setLabel("迭代一步");
            StartDepth = 1;
            lblStep.setText("第"+String.valueOf(StartDepth)+"步");
            //bStop=true;
            update(this.getGraphics());
        }
        else if (button.equals("设置参数")) {
            LSet ls=new LSet(this);
            ls.setSize(420,540);
            ls.show();
            btnStep.setLabel("单步迭代");
            lblStep.setText("          ");
        }
        else if (button.equals("迭代一步")){
            StartDepth= (StartDepth+1) % (initDepth+1);
            if (StartDepth == 0) StartDepth = 1;
            lblStep.setText("第"+String.valueOf(StartDepth)+"步");
            update(this.getGraphics());
        }
        return true;
 }else return false;
}

}
  class doublePoint {     //为保存双精度的点而新建一个类
    double x;
    double y;
    doublePoint(double x1,double y1){
      x=x1;y=y1;
    }
}