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https://github.com/a2-4am/4cade.git
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36 lines
850 B
Python
36 lines
850 B
Python
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#!/usr/bin/env python3
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from math import sqrt, sin, cos, acos, pi
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def f(t, k):
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t = float(t)
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r = k*(1-cos(t)*sin(3*t))
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return r*cos(t),r*sin(t)
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coords = []
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for k_mul in range(3013):
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print(k_mul)
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for t_mul in range(int(pi*100+1)):
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a, b = f(float(t_mul/10), float(k_mul)/10.0)
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x = round(20+a*.6)
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y = round(24+b)
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if x < 0 or x > 39 or y < 0 or y > 47 or (x,y) in coords:
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continue
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coords.append((x,y))
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L = len(coords)
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q1 = coords[0:L//4]
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q2 = coords[L//4:L//2]
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q3 = coords[L//2:L*3//4]
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q4 = coords[L*3//4:]
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q1.reverse()
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q3.reverse()
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coords = []
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for cs in zip(q1, q2, q3, q4):
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for c in cs:
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coords.append(c)
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coords.append((255,255))
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with open("../../src/fx/fx.hgr.ripple2.data.a", "w") as f:
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for x, y in coords:
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f.write(" !byte %s,%s\n" % (y,x))
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