Update sketch_2020_06_03a.pyde

2020/sketch_2020_06_03a/sketch_2020_06_03a.pyde

@@ -3,9 +3,6 @@ via https://twitter.com/ntsutae/status/1267834176381702148?s=20
 ntsutae metioned to be inspired by  https://dwitter.net/d/18851
 """
 
-halfWidth = None
-halfHeight = None
-tex = None
 rotx = PI / 4
 roty = PI / 4
 t = 0
@@ -15,10 +12,7 @@ def setup():
     global halfWidth, halfHeight, tex
     halfWidth = width / 2.0
     halfHeight = height / 2.0
-    tex = loadImage("berlin-1.jpg")
     textureMode(NORMAL)
-    fill(255)
-    stroke(color(44, 48, 32))
 
 def draw():
     background(0)
@@ -33,14 +27,12 @@ def draw():
     G=createGraphics(g, g)
     G.beginDraw()
     G.clear()
-    G.stroke(0, 255, 0)
+    G.stroke(255)
     for x in range(g):
         for y in range(g):
             s = x - t
-            (((s + y) ^ (s - y)) ** 2 + t) % 8096 < 555 and G.point(x, y)
-            # (((s + y) ^ (s - y)) ** 2 + t) % 8096 < 555 and G.point(x, y)
+            (((s + y) | (s - y)) ** 2 + t) % 2048 < 128 and G.point(x, y)
     G.endDraw()
-
     texturedCube(G)