【RMVA】缓动工具方法移植

预览

效果1

效果2

效果3

代码

缓动效果来自:Tweener Documentation

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module Math
class << self
def pow(val, times)
return val ** times
end
end
end
module Ease
class << self
def linear(t, b, c, d)
return c * t / d + b
end
def inQuad(t, b, c, d)
t = t / d
p Math.pow(t, 2)
return c * Math.pow(t, 2) + b
end
def outQuad(t, b, c, d)
t = t / d
return -c * t * (t - 2) + b
end
def inOutQuad(t, b, c, d)
t = t / d * 2
if t < 1
return c / 2 * Math.pow(t, 2) + b
else
return -c / 2 * ((t - 1) * (t - 3) - 1) + b
end
end
def outInQuad(t, b, c, d)
if t < d / 2
return outQuad(t * 2, b, c / 2, d)
else
return inQuad((t * 2) - d, b + c / 2, c / 2, d)
end
end
def inCubic (t, b, c, d)
t = t / d
return c * Math.pow(t, 3) + b
end
def outCubic(t, b, c, d)
t = t / d - 1
return c * (Math.pow(t, 3) + 1) + b
end
def inOutCubic(t, b, c, d)
t = t / d * 2
if t < 1
return c / 2 * t * t * t + b
else
t = t - 2
return c / 2 * (t * t * t + 2) + b
end
end
def outInCubic(t, b, c, d)
if t < d / 2
return outCubic(t * 2, b, c / 2, d)
else
return inCubic((t * 2) - d, b + c / 2, c / 2, d)
end
end
def inQuart(t, b, c, d)
t = t / d
return c * Math.pow(t, 4) + b
end
def outQuart(t, b, c, d)
t = t / d - 1
return -c * (Math.pow(t, 4) - 1) + b
end
def inOutQuart(t, b, c, d)
t = t / d * 2
if t < 1
return c / 2 * Math.pow(t, 4) + b
else
t = t - 2
return -c / 2 * (Math.pow(t, 4) - 2) + b
end
end
def outInQuart(t, b, c, d)
if t < d / 2
return outQuart(t * 2, b, c / 2, d)
else
return inQuart((t * 2) - d, b + c / 2, c / 2, d)
end
end
def inQuint(t, b, c, d)
t = t / d
return c * Math.pow(t, 5) + b
end
def outQuint(t, b, c, d)
t = t / d - 1
return c * (Math.pow(t, 5) + 1) + b
end
def inOutQuint(t, b, c, d)
t = t / d * 2
if t < 1
return c / 2 * Math.pow(t, 5) + b
else
t = t - 2
return c / 2 * (Math.pow(t, 5) + 2) + b
end
end
def outInQuint(t, b, c, d)
if t < d / 2
return outQuint(t * 2, b, c / 2, d)
else
return inQuint((t * 2) - d, b + c / 2, c / 2, d)
end
end
def inSine(t, b, c, d)
return -c * Math.cos(t / d * (Math::PI / 2)) + c + b
end
def outSine(t, b, c, d)
return c * Math.sin(t / d * (Math::PI / 2)) + b
end
def inOutSine(t, b, c, d)
return -c / 2 * (Math.cos(Math::PI * t / d) - 1) + b
end
def outInSine(t, b, c, d)
if t < d / 2
return outSine(t * 2, b, c / 2, d)
else
return inSine((t * 2) -d, b + c / 2, c / 2, d)
end
end
def inExpo(t, b, c, d)
if t == 0
return b
else
return c * Math.pow(2, 10 * (t / d - 1)) + b - c * 0.001
end
end
def outExpo(t, b, c, d)
if t == d
return b + c
else
return c * 1.001 * (-Math.pow(2, -10 * t / d) + 1) + b
end
end
def inOutExpo(t, b, c, d)
return b if t == 0
return b + c if t == d
t = t / d * 2
if t < 1
return c / 2 * Math.pow(2, 10 * (t - 1)) + b - c * 0.0005
else
t = t - 1
return c / 2 * 1.0005 * (-Math.pow(2, -10 * t) + 2) + b
end
end
def outInExpo(t, b, c, d)
if t < d / 2
return outExpo(t * 2, b, c / 2, d)
else
return inExpo((t * 2) - d, b + c / 2, c / 2, d)
end
end
def inCirc(t, b, c, d)
t = t / d
return(-c * (Math.sqrt(1 - Math.pow(t, 2)) - 1) + b)
end
def outCirc(t, b, c, d)
t = t / d - 1
return(c * Math.sqrt(1 - Math.pow(t, 2)) + b)
end
def inOutCirc(t, b, c, d)
t = t / d * 2
if t < 1
return -c / 2 * (Math.sqrt(1 - t * t) - 1) + b
else
t = t - 2
return c / 2 * (Math.sqrt(1 - t * t) + 1) + b
end
end
def outInCirc(t, b, c, d)
if t < d / 2
return outCirc(t * 2, b, c / 2, d)
else
return inCirc((t * 2) - d, b + c / 2, c / 2, d)
end
end
def inElastic(t, b, c, d, a, p=nil)
return if t == 0
t = t / d
return b + c if t == 1
p = d * 0.3 if not p
s = 0
if not a or a < (c).abs
a = c
s = p / 4
else
s = p / (2 * Math::PI) * Math.asin(c/a)
end
t = t - 1
return -(a * Math.pow(2, 10 * t) * Math.sin((t * d - s) * (2 * Math::PI) / p)) + b
end
# a: amplitud
# p: period
def outElastic(t, b, c, d, a, p=nil)
return b if t == 0
t = t / d
return b + c if t == 1
p = d * 0.3 if not p
s = 0
if not a or a < (c).abs
a = c
s = p / 4
else
s = p / (2 * Math::PI) * Math.asin(c/a)
end
return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math::PI) / p) + c + b
end
# p = period
# a = amplitud
def inOutElastic(t, b, c, d, a=nil, p=nil)
return b if t == 0
t = t / d * 2
return b + c if t == 2
p = d * (0.3 * 1.5) if not p
a = 0 if not a
s = 0
if not a or a < (c).abs
a = c
s = p / 4
else
s = p / (2 * Math::PI) * Math.asin(c / a)
end
if t < 1
t = t - 1
return -0.5 * (a * Math.pow(2, 10 * t) * Math.sin((t * d - s) * (2 * Math::PI) / p)) + b
else
t = t - 1
return a * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math::PI) / p ) * 0.5 + c + b
end
end
# a: amplitud
# p: period
def outInElastic(t, b, c, d, a, p=nil)
if t < d / 2
return outElastic(t * 2, b, c / 2, d, a, p)
else
return inElastic((t * 2) - d, b + c / 2, c / 2, d, a, p)
end
end
def inBack(t, b, c, d, s=nil)
s = 1.70158 if not s
t = t / d
return c * t * t * ((s + 1) * t - s) + b
end
def outBack(t, b, c, d, s=nil)
s = 1.70158 if not s
t = t / d - 1
return c * (t * t * ((s + 1) * t + s) + 1) + b
end
def inOutBack(t, b, c, d, s=nil)
s = 1.70158 if not s
s = s * 1.525
t = t / d * 2
if t < 1
return c / 2 * (t * t * ((s + 1) * t - s)) + b
else
t = t - 2
return c / 2 * (t * t * ((s + 1) * t + s) + 2) + b
end
end
def outInBack(t, b, c, d, s)
if t < d / 2
return outBack(t * 2, b, c / 2, d, s)
else
return inBack((t * 2) - d, b + c / 2, c / 2, d, s)
end
end
def outBounce(t, b, c, d)
t = t / d
if t < 1 / 2.75
return c * (7.5625 * t * t) + b
elseif t < 2 / 2.75
t = t - (1.5 / 2.75)
return c * (7.5625 * t * t + 0.75) + b
elseif t < 2.5 / 2.75
t = t - (2.25 / 2.75)
return c * (7.5625 * t * t + 0.9375) + b
else
t = t - (2.625 / 2.75)
return c * (7.5625 * t * t + 0.984375) + b
end
end
def inBounce(t, b, c, d)
return c - outBounce(d - t, 0, c, d) + b
end
def inOutBounce(t, b, c, d)
if t < d / 2
return inBounce(t * 2, 0, c, d) * 0.5 + b
else
return outBounce(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b
end
end
def outInBounce(t, b, c, d)
if t < d / 2
return outBounce(t * 2, b, c / 2, d)
else
return inBounce((t * 2) - d, b + c / 2, c / 2, d)
end
end
end
end

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