note for last commit

it doesn't race condition on macos...

python/main.py

@@ -1,17 +1,81 @@
+linecol = 15
+def draw_line(x0, y0, x1, y1, c):
+    dx = abs(x1 - x0)
+    dy = abs(y1 - y0)
+    sx = 1 if x0 < x1 else -1
+    sy = 1 if y0 < y1 else -1
+    err = dx - dy
+    
+    while x0 != x1 or y0 != y1:
+        pixel(x0, y0, c)
+        e2 = 2 * err
+        if e2 > -dy:
+            err -= dy
+            x0 += sx
+        if e2 < dx:
+            err += dx
+            y0 += sy
+
+
+class ball:
+    def __init__(self):
+        self.x = rnd(10, 100)
+        self.y = rnd(10, 100)
+        self.velX = rnd(-5,5)
+        self.velY = rnd(-5,5)
+        self.color = rnd(0,64)
+
+    def draw(self):
+        global linecol
+        self.x += self.velX;
+        self.y += self.velY;
+
+        if self.x < 0:
+            self.velX = -self.velX;
+            self.x = 0
+            linecol = rnd(0,64)
+        if self.y < 0:
+            self.velY = -self.velY;
+            self.y = 0
+            linecol = rnd(0,64)
+
+        if self.x > 360:
+            self.velX = -self.velX;
+            self.x = 360
+            linecol = rnd(0,64)
+
+        if self.y > 203:
+            self.velY = -self.velY;
+            self.y = 203
+            linecol = rnd(0,64)
+
+
+        circle(self.x, self.y, 3, self.color)
+
+# i = 0
+# def update():
+    # global i
+    # i += 1
+    # #clear(43)
+    # x = sin(i * 0.071234) * 50 + (360 / 2)
+    # y = sin(i * 0.0236) * 20 + (203 / 2)
+    # circle(x + sin(i * 0.05) * 30, y + cos(i * 0.05) * 30, 5, 15)
+    # circle(x + sin(i * 0.05) * 30, y + cos(i * 0.05) * 30, 3, 11)
+    # circle(x + -sin(i * 0.05) * 30, y + -cos(i * 0.05) * 30, 5, 17)
+    # circle(x + -sin(i * 0.05) * 30, y + -cos(i * 0.05) * 30, 3, 19)
+
+
+balls = []
+
+for i in range(2):
+    balls.append(ball())
 
-i = 0
 def update():
-    global i
-    i += 1
-    clear(43)
-    x = sin(i * 0.071234) * 50 + 100
-    y = sin(i * 0.0236) * 20 + 80
-    circle(x + sin(i * 0.05) * 30, y + cos(i * 0.05) * 30, 5, 15)
-    circle(x + sin(i * 0.05) * 30, y + cos(i * 0.05) * 30, 3, 11)
-    circle(x + -sin(i * 0.05) * 30, y + -cos(i * 0.05) * 30, 5, 17)
-    circle(x + -sin(i * 0.05) * 30, y + -cos(i * 0.05) * 30, 3, 19)
+    global linecol
+    #clear(0)
+    draw_line(balls[0].x, balls[0].y, balls[1].x, balls[1].y, linecol)
+
+    for ball in balls:
+        ball.draw()
 
 
-
-clear(44)
-circle(20,30, 5, 17)