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Problem with object collision

[5 Replies]
- 02-Dec-2011 08:45 PM
- Forum: Programming Questions
Hello,

I am new to Processing and am having some trouble with a project I am working on. What I am trying to do is make it so that when the circles (following the mouse) comes in contact with one of the moving circles, they all stop moving. Unfortunately I know next to oohing about collision and am having a tough time. Here is the code I have right now, if anyone could give me some pointers, or an example or something, I would really appreciate it.

float x = 100;

float y = 100;

float xspeed = 1;

float yspeed = 3.3;

float x1 = 200;

float y1 = 200;

float xspeed1 = 4;

float yspeed1 = 7.3;

float x2 = 300;

float y2 = 400;

float xspeed2 = 4;

float yspeed2 = 4.3;

float x3 = 30;

float y3 = 40;

float xspeed3 = 5;

float yspeed3 = 4.3;

void setup() {

size(800,800);

smooth();

background(255);

}

void draw() {





noStroke();

fill(255,10);

rect(0,0,width,height);

background(0,0,0);

fill(255,0,0);



ellipse(mouseX,mouseY,50,50);

fill(255);

// Add the current speed to the location.

x = x + xspeed;

y = y + yspeed;

// Check for bouncing

if ((x > width) || (x < 0)) {

xspeed = xspeed * -1;

}

if ((y > height) || (y < 0)) {

yspeed = yspeed * -1;

}

// Display at x,y location

stroke(0);

fill(175);

ellipse(x,y,16,16);

x1 = x1 + xspeed1;

y1 = y1 + yspeed1;

// Check for bouncing

if ((x1 > width) || (x1 < 0)) {

xspeed1 = xspeed1 * -1;

}

if ((y1 > height) || (y1 < 0)) {

yspeed1 = yspeed1 * -1;

}

// Display at x,y location

stroke(0);

fill(175);

ellipse(x1,y1,16,16);



x2 = x2 + xspeed2;

y2 = y2 + yspeed2;

// Check for bouncing

if ((x2 > width) || (x2 < 0)) {

xspeed2 = xspeed2 * -1;

}

if ((y2 > height) || (y2 < 0)) {

yspeed2 = yspeed2 * -1;

}

// Display at x,y location

stroke(0);

fill(175);

ellipse(x2,y2,16,16);



x3 = x3 + xspeed3;

y3 = y3 + yspeed3;

// Check for bouncing

if ((x3 > width) || (x3 < 0)) {

xspeed3 = xspeed3 * -1;

}

if ((y3 > height) || (y3 < 0)) {

yspeed3 = yspeed3 * -1;

}

// Display at x,y location

stroke(0);

fill(175);

ellipse(x3,y3,16,16);

}

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