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Index › Programming Questions & Help › Programs › Random circles movement & generating
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Random circles movement & generating (Read 493 times)
arunpawar
Random circles movement & generating
Apr 12th, 2008, 1:45pm  
here i have the code for the program...i want to genereate random circle with diffent color and move them across screen randomly...i just can't break thru with logic....
i m trying my best to do it myself but really cracking my mind....

float r = random(50);
void setup()
{
 size(550,400);
 background(#FFFFFF);
fill(0, 102, 153, 204);
smooth();
noLoop();
}

void draw() {
 circles(40, 80);
 circles(90, 70);
}

void circles(int x, int y) {
 ellipse(x, y, 50, 50);
 ellipse(x*r,y*r,100,120);
}


please let me know if this can be done...addyour suggestion to baove code...

thanks in advance...
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antiplastik
Re: Random circles movement & generating
Reply #1 - Apr 12th, 2008, 1:54pm  
Have a look at this example from the Learning section :
http://processing.org/learning/topics/bouncybubbles.html

The main logic is here : declaring an array of objects (circles) or coordinates ; filling this array in setup() ; iterate the array and move each object in draw().
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stier4
Re: Random circles movement & generating
Reply #2 - Apr 12th, 2008, 11:18pm  
if you want motion, remove the noLoop(); expression
if you want different circle colors, add a third parameter to your circle function:
--
void circles(int x, int y, color c){
 fill(c);
--

Quote:


float x = 200;
float y = 200;
float Size;

void setup()
{
 size(550,400);
 background(#FFFFFF);
fill(0, 102, 153, 204);
smooth();

}

void draw() {
float randX = random(-3,3);
float randY = random(-3,3);
float randSize = random(-3,3);
color randCol = color(random(255),random(255),random(255));
 x = x+randX;
 y = y+randY;
  Size = Size + randSize;
 circles(x, y,Size,randCol);
}

void circles(float x, float y, float size, color c) {
 fill(c);
 ellipse(x, y, size, size);
}



try my edit of your code, not sure if this is what you mean, but have a look,

if you want to have "smoother" randomness, take a look at http://processing.org/reference/noise_.html

if you want only one circle, add a background(#FFFFFF); expression to the draw() function.
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