Update sketch_2020_04_16a.pyde

2020/sketch_2020_04_16a/sketch_2020_04_16a.pyde

@@ -1 +1,57 @@
+"""
+"Based on traditional Japanese stitching,
+this is a riff on hitomezashi patterns." Annie Perikins @anniek_p
+https://twitter.com/anniek_p/status/1244220881347502080?s=20
+"""
+from random import choice
+
+tam = 10
+mtm = tam / 2  # meio tamanho
+grid = dict()
+
+def setup():
+    global cols, rows
     size(400, 400)
+    cols, rows = width / mtm - 1, height / tam
+    # for x in range(cols):
+    #     for y in range(rows):
+    #         grid[(x, y)] = True
+
+def init():
+    for y in range(rows):
+        on = choice((True, False))
+        for x in range(cols):
+            if x % 2 == 1:
+                if x % 4:
+                    on = not on
+                grid[(x, y)] = on
+    for x in range(cols):
+        on = choice((True, False))
+        for y in range(rows):
+            if x % 2 == 0:
+                on = not on
+                grid[(x, y)] = on
+
+def draw():
+    background(200)
+    noLoop()
+    init()
+
+    for i in range(cols):
+        x = i * mtm + mtm
+        for j in range(rows):
+            y = j * tam + mtm
+            if j % 2:
+                stroke(200, 0, 0)
+            else:
+                stroke(0, 0, 200)
+            if grid[(i, j)]:
+                if i % 2 == 0:
+                    line(x, y - mtm, x, y + mtm)
+                else:
+                    line(x - mtm, y - mtm, x + mtm, y - mtm)
+
+
+def mouseReleased():
+    loop()
+    saveFrame("####.png")