113 lines
2.2 KiB
Plaintext
113 lines
2.2 KiB
Plaintext
-- A basic polyfill for the TweenInfo.new function,
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-- allows using Enum.EasingStyle/Direction or strings instead
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local logError = require "../Logging/logError"
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local TweenInfo = {}
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function TweenInfo.new(
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time: number?,
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easingStyle: Enum.EasingStyle | string?,
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easingDirection: Enum.EasingDirection | string?,
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repeatCount: number?,
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reverses: boolean?,
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delayTime: number?
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)
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local proxy = newproxy(true)
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local mt = getmetatable(proxy)
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-- if easingStyle or easingDirection is an enum,
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-- convert it to a string
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if type(easingStyle) ~= "string" then
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if easingStyle then
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easingStyle = tostring(easingStyle):gsub("Enum.%w+.", "")
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end
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else
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local ok
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for _, s in ipairs {
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"Linear",
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"Quad",
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"Cubic",
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"Quart",
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"Quint",
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"Sine",
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"Exponential",
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"Circular",
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"Elastic",
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"Back",
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"Bounce",
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} do
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if easingStyle == s then
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ok = true
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break
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end
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end
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if not ok then
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logError("invalidEasingStyle", nil, easingStyle)
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end
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end
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if type(easingDirection) ~= "string" then
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if easingDirection then
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easingDirection = tostring(easingDirection):gsub("Enum.%w+.", "")
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end
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else
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local ok
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for _, d in ipairs {
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"In",
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"Out",
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"InOut",
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"OutIn",
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} do
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if easingDirection == d then
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ok = true
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break
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end
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end
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if not ok then
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logError("invalidEasingDirection", nil, easingDirection)
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end
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end
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time = time or 1
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easingStyle = easingStyle or "Quad"
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easingDirection = easingDirection or "Out"
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repeatCount = repeatCount or 0
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reverses = reverses or false
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delayTime = delayTime or 0
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mt.__index = {
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Time = time,
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EasingStyle = easingStyle,
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EasingDirection = easingDirection,
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RepeatCount = repeatCount,
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Reverses = reverses,
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DelayTime = delayTime,
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}
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-- When attempting to assign to properties, throw an error
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mt.__newindex = function(_, prop)
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error(prop .. " cannot be assigned to", math.huge) -- lmfao
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end
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mt.__tostring = function()
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return "Time:"
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.. tostring(time)
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.. " DelayTime:"
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.. tostring(delayTime)
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.. " RepeatCount:"
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.. tostring(repeatCount)
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.. " Reverses:"
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.. (reverses and "True" or "False")
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.. " EasingDirection:"
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.. easingDirection
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.. " EasingStyle:"
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.. easingStyle
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end
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mt.__metatable = "The metatable is locked"
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return proxy
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end
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return TweenInfo
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