98 lines
1.7 KiB
Python
98 lines
1.7 KiB
Python
import math
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def OUT_CIRC(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t = t / d - 1
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return c * math.sqrt(1 - t * t) + b
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def OUT_QUART(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t = t / d - 1
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return -c * (t * t * t * t - 1) + b
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def INOUT_CIRC(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t1 = t / (d / 2)
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if (t / (d / 2)) < 1:
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return -c / 2 * (math.sqrt(1 - (t / (d / 2)) ** 2) - 1) + b
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else:
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return c / 2 * (math.sqrt(1 - (t1 - 2) ** 2) + 1) + b
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def IN_CUBIC(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t /= d
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return c * t * t * t + b
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def OUT_QUAD(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t /= d
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return -c * t * (t - 2) + b
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def OUT_BOUNCE(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t /= d
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if t < (1 / 2.75):
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return c * (7.5625 * t * t) + b
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elif t < (2 / 2.75):
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t -= (1.5 / 2.75)
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return c * (7.5625 * t * t + .75) + b
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elif t < (2.5 / 2.75):
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t -= (2.25 / 2.75)
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return c * (7.5625 * t * t + .9375) + b
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else:
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t -= (2.625 / 2.75)
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return c * (7.5625 * t * t + .984375) + b
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def INOUT_EXP(t, b, c, d):
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t = float(t)
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b = float(b)
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c = float(c)
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d = float(d)
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t1 = t / (d / 2)
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if t == 0:
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return b
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elif t == d:
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return b + c
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elif t1 < 1:
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return c / 2 * math.pow(2, 10 * (t1 - 1)) + b - c * 0.0005
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else:
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return c / 2 * 1.0005 * (-math.pow(2, -10 * (t1 - 1)) + 2) + b
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