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Quick question about a simple animation. (Read 533 times)

maniacmike228

Quick question about a simple animation.
Apr 14^th, 2009, 5:03pm

Sorry to bother someone with this question. I am new to processing (2nd day to be exact) and I am trying to do a simple animation. Basically what I am trying to do is make an ellipse appear when you click the mouse. (I have been successful thus far). Then once the mouse is clicked again and a second ellipse appears, I want that 2nd ellipse to connect to the 1st with a line...much like a connect-the-dots sort of thing.

I basically want it to look like this...but like i said i want the lines to connect wherever I click the mouse.

void setup() {
size(640, 360);
background(102);
smooth();
fill(0, 102);
}

void draw() {
if (mousePressed) {
fill(255);
ellipse(mouseX, mouseY, 9, 9);
line(mouseX,mouseY,mouseX+100,mouseY);
ellipse(mouseX+100,mouseY,9,9);
}
}

I know, it's simple and stupid but it's bugging me and help would be much appreciated

Thanks!

jeffg

Re: Quick question about a simple animation.
Reply #1 - Apr 14^th, 2009, 6:42pm

I don't have Processing installed on this PC, so I can't test this... but I'll just try to write it out and hope it helps (and works).

Code:


float xval, yval;
boolean firstclick = true; 

void setup() {
size(640, 360);
background(102);
smooth();
fill(0, 102);
}

void draw() {
if (mousePressed) {
  fill(255);
  ellipse(mouseX, mouseY, 9, 9);
  if (firstclick == true){
     xval = mouseX;
     yval = mouseY;
     firstclick = false;
   } 
   else {
     line(xval, yval, mouseX, mouseY);
     xval = mouseX;
     yval = mouseY;
    }
  }
}

maniacmike228 YaBB Newbies Offline Posts: 2	Re: Quick question about a simple animation. Reply #2 - Apr 14^th, 2009, 7:47pm you nailed it! Looks like I wasn't as close as I thought I was Thank you!

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