From 95d8ed3af9f069620896d65ad24f64770611ffb1 Mon Sep 17 00:00:00 2001
From: Andrew <saintruler@gmail.com>
Date: Mon, 11 Mar 2019 21:45:42 +0400
Subject: Initial commit

---
 times_table.py | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 times_table.py

(limited to 'times_table.py')

diff --git a/times_table.py b/times_table.py
new file mode 100644
index 0000000..9def165
--- /dev/null
+++ b/times_table.py
@@ -0,0 +1,84 @@
+from math import sin, cos, pi
+
+from pygame.math import Vector2
+import pygame
+from pygame.locals import *
+
+pygame.init()
+
+
+def convert2int(t):
+    return list(map(int, t))
+
+
+def up(start_color: list, index: int):
+    for component in range(256):
+        new_color = start_color.copy()
+        new_color[index] = component
+        yield new_color
+
+
+def down(start_color: list, index: int):
+    for component in range(255, -1, -1):
+        new_color = start_color.copy()
+        new_color[index] = component
+        yield new_color
+
+
+def color_iterator():
+    while True:
+        yield from up([255, 0, 0], 1)
+        yield from down([255, 255, 0], 0)
+        yield from up([0, 255, 0], 2)
+        yield from down([0, 255, 255], 1)
+        yield from up([0, 0, 255], 0)
+        yield from down([255, 0, 255], 2)
+
+
+count = 200
+multiple = 1
+radius = 400
+step = 0.01
+center = Vector2(radius, radius)
+
+theta = 2 * pi / count
+
+alpha = lambda n: (theta * n) % count
+
+f_x = lambda n: cos(alpha(n)) * radius + center.x
+f_y = lambda n: sin(alpha(n)) * radius + center.y
+
+f = lambda n: Vector2(f_x(n), f_y(n))
+
+
+BLACK = Color('black')
+WHITE = Color('white')
+RED = Color('red')
+
+WIDTH, HEIGHT = SIZE = radius * 2, radius * 2
+screen = pygame.display.set_mode(SIZE)
+
+color = color_iterator()
+
+clock = pygame.time.Clock()
+while True:
+    clock.tick(60)
+    for event in pygame.event.get():
+        if event.type == QUIT:
+            pygame.quit()
+            quit()
+
+    screen.fill(BLACK)
+
+    c = next(color)
+
+    pygame.draw.circle(screen, c, convert2int(center), radius, 3)
+
+    for n in range(count):
+        p1 = f(n)
+        p2 = f(multiple * n)
+        pygame.draw.line(screen, c, convert2int(p1), convert2int(p2), 1)
+
+    multiple += step
+
+    pygame.display.flip()
-- 
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