47 lines
No EOL
928 B
Lua
47 lines
No EOL
928 B
Lua
local self = {}
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local easelib = require 'easelib'
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function self.mixEase(e1, e2, point, param1, param2)
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if not point then point = 0.5 end
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return function(a)
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if a < point then
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return e1(a / point, param1[1], param1[2]) * point
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else
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return e2((a - point) / (1 - point), param2[1], param2[2]) * (1 - point) + point
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end
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end
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end
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self.eases = {}
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for i,v in pairs(easelib) do
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local min = 0
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local params = {}
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for i = 3, #v do
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if v[i] then
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table.insert(params, {min = v[i][1], max = v[i][2], default = v[i][3], name = v[i][4]})
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end
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end
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local q = 10
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for i = 0, q do
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local s = v[2](i / q, (params[1] or {}).default, (params[2] or {}).default)
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if s < 0 and not v.overridemin then min = -1 end
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end
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self.eases[v[1]] = {
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f = v[2],
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max = 1,
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min = min,
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i = i,
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name = v[1],
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params = params
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}
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end
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self.ease = nil
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self.minEase = false
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return self |