31 lines
536 B
Lua
31 lines
536 B
Lua
require "math"
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function table.shallow_copy(t)
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local t2 = {}
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for k,v in pairs(t) do
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t2[k] = v
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end
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return t2
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end
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function thisorthat(c, a, b)
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if c then return a else return b end
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end
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function pingpong(at, over)
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local c = (over - 1) * 2
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if math.fmod(at, c) >= over then
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return c - math.fmod(at, c)
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else
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return math.fmod(at, c)
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end
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end
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function linease(c, t, d, b)
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return c * t / d + b
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end
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function sinease(c, t, d, b)
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return -c*math.cos(t/d*(math.pi/2)) + c + b
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end
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