Hi , i have uploaded to my web one sketch, i want to make it possible to start,restart or pause it when the user clicks on it with the LMB.


How do i do this ?

Thanx !

Thanx ! but i have done something a bit differerent, i have told processing to erase everything that was painted with this code :

Code:

 if (mousePressed==true)
  background(#FA0058);  

In my bouncing ball sketch http://www.tweakingknobs.com/63.html this is what i want.

But in the many bouncing rects i want it the other way round.

So, whith the many bouncing rects i want that is always not leaving trails, but when you click on it it leaves trails.

I have tried , but i cant make it, do you know how ?
Here's the code

Code:

// many bouncing bal program 

// global variables

int ballCount = 500;
int ballSize = 18;
int ballSpeed =3;
float []xspeed = new float [ballCount];
float []yspeed = new float [ballCount];
float []xpos = new float [ballCount];
float []ypos = new float [ballCount];
float []wdth = new float [ballCount];
float[]ht = new float [ballCount];

//initialize sketch
void setup(){
  
  
  size (800,300);
  background(#FA0058);
noStroke();
frameRate(30);
smooth();
  //initialize values for all balls
  
  for (int i=0; i<ballCount; i++) { 
  
  // set variable ball speed
  
  xspeed[i] = random(1, ballSpeed);
  yspeed[i] = random (-ballSpeed, ballSpeed);
  
  //ball varied ball sizes
  
  wdth[i] = random(1, ballSize);
  ht[i] = wdth[i];
  
  // set initial ball placement
  
  xpos[i] = width/2+random(-width/3, width/3);
  ypos[i] = height/2+random(-height/3, height/3);
}
}
// turnoff stroke




// draw

void draw(){

  
 
  // updates background;
    if (mousePressed==true)
  background(#FA0058);
  
  
  
  
  for(int i=0; i<ballCount; i++){
   // fill(#FA0058,25);
   //rect (width/2,height/2,width,height)
   fill(255);
    //drawballs
  
   rect (xpos[i],ypos[i], wdth[i],ht[i]);
     
   // upgrade ball pos
   xpos[i]+=xspeed[i];
   ypos[i]+=yspeed[i];
  
   // conditionals
   if (xpos[i]+wdth[i]/2>=width || xpos[i]<=wdth[i]/2){
     xspeed[i]*=-1;
   }
   if (ypos[i]+ht[i]/2>=height || ypos[i]<=ht[i]/2){
     yspeed[i]*=-1;
     
   }
  }
}  

Thank you very much my friend ! Its working now as i wanted, now i have to keep on learning more processing