Processing: Infinite Draught

Infinite Draught

// Global variables  
int X, Y;  
int nX, nY;  
int delay = 10;  

// Setup the Processing Canvas  
void setup() {  
  size( 800, 600 );  
  smooth();
  strokeWeight(1);  
  X = width / 2;  
  Y = height / 2;  
  nX = X;  
  nY = Y;
}  

// Main draw loop  
void draw() {  

  // Track circle to new destination  
  X+=(nX-X)/delay;  
  Y+=(nY-Y)/delay;  

  // Set stroke-color white  
  stroke(0, 65);   


  if(frameCount % 5 == 0) {
    int distance = floor(random(40,70));
    int tX = constrain(floor(nX + random(-distance, distance)), 0, width);
    int tY = constrain(floor(nY + random(-distance, distance)), 0, height);
    line(nX, nY, tX, tY);
    println(10 * sin( frameCount));
    nX = tX;
    nY = tY;
  }
}