Class Assignment - OpenProcessing

mySketch
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float r = 255;
float b = 255;
float g = 0;
​
void setup() {
  size(500, 500);
}
​
void draw() {
  background(r,g,b);  
  stroke(255);
  line(width/2,0,width/2,height);
  line(0,height/2,width,height/2);
  
  // If the mouse is on the right hand side of the window, increase red.  
  // Otherwise, it is on the left hand side and decrease red.
  if (mouseX > width/2) {
    r = r + 1; 
    fill(random(255));
    rect(width/2,0, width/2,height/2);
  } else {
    r = r - 1;
  }
  
  // If the mouse is on the bottom of the window, increase blue.  
  // Otherwise, it is on the top and decrease blue.
  if (mouseY > height/2) {
    b = b + 1; 
    fill(random(255));
    rect(0,height/2, width/2, height/2);
  } else {
    b = b - 1; 
  }
  
  // If the mouse is pressed (using the system variable mousePressed)
  if (mousePressed) {
    fill(0,255,0);
    rect(0,height/2,width/2,height/2);
    g = g + 1; 
  } else {
    g = g - 1; 
  }
}
​