Proceesing编程【4】

processing……有毒= =！！！！！

 一个移动的小球==

int num=2;//the number of linesint width=500;int height=500;color c=color((int)random(255), (int)random(255), (int)random(255));//init colorint Xinit=width/4, Yinit=height/4;//init placeint r=150;//init radiusint X=0, Y=0,Y1=0,X1=0;//XY:dis,X1,X2:varaXYboolean ifReleased=false,ifColor=false,ifClicked=false;class ball{  int r=0;//radius  color co;//color  float X=0,Y=0;//location  ball(color c, int radius,float x,float y)  {    co=c;    r=radius;    X=x;    Y=y;  }  void display() {    background(255);    fill(co);    noStroke();    ellipse(X,Y,r,r);    drawgrid();  }}void setup() {  size(500, 500);  background(255);  drawgrid();  noStroke();  fill(c);  ellipse(width/4, height/4, r, r);}void draw(){  if(mousePressed&&(dist(Xinit,Yinit,mouseX,mouseY)<=r/2))  {    print("----------------");    Xinit=mouseX;  Yinit=mouseY;    ball b=new ball(c,r,-X+mouseX,-Y+mouseY);    b.display();  }}void mousePressed(){   X=mouseX-Xinit;   X1=Xinit;  Y=mouseY-Yinit;  Y1=Yinit;  if(dist(Xinit,Yinit,mouseX,mouseY)<=r/2)  {    print("PPPPPPPPPPPPPPPPPPPPPPPP");  ifReleased=false;  }}void mouseReleased() {  if(dist(Xinit,Yinit,mouseX,mouseY)<=r/2)  {  print("zzzzzzzzzzzzzzzzzzzzzzz");  ifReleased=true;  int x=mouseX;  int y=mouseY;  color c1=c;  if((dist(mouseX,mouseY,X1,Y1)<width/3)||x<=0||y<=0||x>=width||y>=height)  {  ifColor=true;  }  else  ifColor=false;  print(Xinit);  print(X*X+Y*Y<=r*r);  if(!(ifColor&&(X*X+Y*Y<=r*r)))  {    print(ifColor);    c1=color((int)random(255), (int)random(255), (int)random(255));  }    if (x>width/2&&y>height/2)    {        Xinit=width*3/4;      Yinit=height*3/4;      background(255);      noStroke();      fill(c1);      ellipse(width*3/4, height*3/4, 150, 150);      drawgrid();    } else if (x>width/2&&y<height/2)    {       Xinit=width*3/4;      Yinit=height/4;      background(255);      noStroke();      fill(c1);      ellipse(width*3/4, height/4, 150, 150);      drawgrid();    } else if (x<width/2&&y>height/2)    {        Xinit=width/4;      Yinit=height*3/4;      background(255);      noStroke();      fill(c1);      ellipse(width/4, height*3/4, 150, 150);      drawgrid();    } else     { Xinit=width/4;      Yinit=height/4;      background(255);      noStroke();      fill(c1);      ellipse(width/4, height/4, 150, 150);      drawgrid();    }    c=c1;    }  }void drawgrid() {  int i;  for (i=1; i<num; i++)  {    stroke(0);    strokeWeight(2);    line(0, height*i/num, width, height*i/num);    line(width*i/num, 0, width*i/num, height);  }