import processing.core.*; 
import processing.data.*; 
import processing.event.*; 
import processing.opengl.*; 

import java.util.HashMap; 
import java.util.ArrayList; 
import java.io.File; 
import java.io.BufferedReader; 
import java.io.PrintWriter; 
import java.io.InputStream; 
import java.io.OutputStream; 
import java.io.IOException; 

public class joonis1 extends PApplet {

public void setup() {
  size(640, 360);
  noStroke();
  colorMode(RGB, height, height, height);
  rectMode(CENTER);
}

public void draw() {
  background(0.0f);

  float r1 = map(mouseX, 0, width, 0, height);
  float r2 = height-r1;
  
  fill(r1);
  rect(width/2 + r1/2, height/2, r1, r1);
  
  fill(r2);
  rect(width/2 - r2/2, height/2, r2, r2);

}
  static public void main(String[] passedArgs) {
    String[] appletArgs = new String[] { "joonis1" };
    if (passedArgs != null) {
      PApplet.main(concat(appletArgs, passedArgs));
    } else {
      PApplet.main(appletArgs);
    }
  }
}