44 lines
1 KiB
Lua
44 lines
1 KiB
Lua
local TweenManager = Object:extend()
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local tween = require "game.modules.tweenmanager.libs.tween"
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function TweenManager:new(subject)
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self.subject = subject
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self.timer = 0
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self.tweens = {}
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self.targets = {}
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end
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function TweenManager:newTween(start, duration, target, easing)
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local newTween = {}
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-- we add the data into a tween wrapper
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newTween.tween = tween.new(duration, self.subject, target, easing)
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newTween.start = self.timer + start -- /!\ START IS RELATIVE TO CURRENT TIME
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newTween.clear = newTween.start + duration
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table.insert(self.tweens, newTween)
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end
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function TweenManager:update(dt)
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self.timer = self.timer + dt
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for i, tweenWrapper in ipairs(self.tweens) do
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if (self.timer > tweenWrapper.start) then
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tweenWrapper.tween:update(dt)
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end
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end
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self:clearEndedTweens()
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end
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function TweenManager:clearEndedTweens(dt)
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for i, tweenWrapper in ipairs(self.tweens) do
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if (self.timer > tweenWrapper.clear) then
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table.remove(self.tweens, i)
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end
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end
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end
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return TweenManager
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