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114 lines
3.2 KiB
114 lines
3.2 KiB
#!/usr/bin/env python3 |
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import sys |
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import random |
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import math |
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import argparse |
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import collections |
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import blup.frame |
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import blup.output |
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import blup.animation |
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import blup.writebml |
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import colorsys |
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WIDTH = 22 |
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HEIGHT = 16 |
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DEPTH = 256 |
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class Point(collections.namedtuple('Point', ['x', 'y'])): |
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def __add__(self, other): |
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return Point(self.x + other.x, self.y + other.y) |
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def __sub__(self, other): |
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return Point(self.x - other.x, self.y - other.y) |
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def __mul__(self, other): |
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if isinstance(other, Point): |
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raise Exception('not implemented') |
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else: |
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return Point(self.x * other, self.y * other) |
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def __truediv__(self, other): |
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if isinstance(other, Point): |
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raise ValueError() |
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else: |
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return self * (1/other) |
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@property |
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def len(self): |
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return math.sqrt(self.x**2 + self.y**2) |
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@property |
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def n(self): |
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n = Point(self.y, -self.x) |
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return n / n.len |
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@property |
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def intp(self): |
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return Point(int(round(self.x)), int(round(self.y))) |
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def convert_color(c): |
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return list(map(lambda x: int(round(x*(DEPTH-1))), c)) |
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def get_random_color(): |
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return colorsys.hsv_to_rgb(random.random(), 1, 1) |
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class Disc: |
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def __init__(self, worldsize, hue): |
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self.worldsize = worldsize |
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self.pos = Point(random.randint(0, worldsize.x - 1), |
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random.randint(0, worldsize.y - 1)) |
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self.hue = hue |
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self.r = 1 |
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self.speed = min(worldsize.x, worldsize.y) / 2 |
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self.done = False |
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def update(self, t, dt): |
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self.r += self.speed * dt |
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if self.r > max(self.worldsize.x, self.worldsize.y): |
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self.done = True |
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def draw(self, frame): |
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color = colorsys.hsv_to_rgb(self.hue, 1, 1) |
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for x in range(self.worldsize.x): |
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for y in range(self.worldsize.y): |
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p = Point(x, y) |
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if (p - self.pos).len < self.r: |
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frame.setPixel(p.x, p.y, convert_color(color)) |
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if __name__ == '__main__': |
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parser = argparse.ArgumentParser(description='Generate animations') |
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parser.add_argument('-d', '--delay', type=int, default=50) |
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parser.add_argument('-t', '--time', type=int, default=15) |
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parser.add_argument('output_file') |
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args = parser.parse_args() |
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dim = blup.frame.FrameDimension(WIDTH, HEIGHT, DEPTH, 3) |
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anim = blup.animation.Animation(dim) |
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anim.tags['description'] = ' '.join(sys.argv) |
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discs = [] |
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t = 0 |
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dt = args.delay / 1000 |
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while t < args.time: |
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t += dt |
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frame = blup.animation.AnimationFrame(dim, args.delay) |
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if len(discs) == 0 or discs[-1].r > min(WIDTH, HEIGHT) / 2: |
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hue = random.random() |
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if len(discs) > 0: |
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l = lambda d: hue - d.hue if d.hue < hue else d.hue - hue |
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while not 0.2 < sorted(map(l, discs))[0] < 0.8: |
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hue = random.random() |
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discs.append(Disc(Point(WIDTH, HEIGHT), hue)) |
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for d in discs: |
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d.update(t, dt) |
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d.draw(frame) |
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if len(discs) > 2 and discs[0].done and discs[1].done: |
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del discs[0] |
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anim.addFrame(frame) |
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blup.writebml.writeBml(anim, args.output_file)
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