diff --git a/2020/sketch_2020_07_31a/sketch_2020_07_31a.pyde b/2020/sketch_2020_07_31a/sketch_2020_07_31a.pyde
index d9467d9e..6a64c128 100644
--- a/2020/sketch_2020_07_31a/sketch_2020_07_31a.pyde
+++ b/2020/sketch_2020_07_31a/sketch_2020_07_31a.pyde
@@ -7,32 +7,30 @@ from particles import ParticleSystem
 def setup():
     global video, opencv, particles
     size(400, 400)
-    video = Capture(this, 640/2, 480/2)
-    opencv = OpenCV(this, 640/2, 480/2)
-    video.start()
-
-    particles = ParticleSystem(PVector(width / 2, 50))
-    # repeller = Repeller(width / 2, 280, power=20000)
     colorMode(HSB)
+    
+    video = Capture(this, 640/2, 480/2)
+    video.start()
+    opencv = OpenCV(this, 640/2, 480/2)
+    
+    particles = ParticleSystem(PVector(width / 2, 50))
     for _ in range(20):
         particles.addParticle(PVector(random(width), random(height)))
 
 
-
 def draw():
     background(0)
     opencv.loadImage(video)
     opencv.calculateOpticalFlow()
     ave_flow = PVector().set(opencv.getAverageFlow())
-    print ave_flow
+    # print ave_flow
     if ave_flow.x == ave_flow.x: # to avoid NaN :)
         particles.run(ave_flow)
 
     stroke(255)
     scale(1.5, 2)
     opencv.drawOpticalFlow()
-
-
+        
         
 def captureEvent(c):
     c.read()