132 lines
3.7 KiB
Lua
132 lines
3.7 KiB
Lua
-- timers :: a basic implementation of a timer system.
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--[[
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Copyright © 2019 Kazhnuz
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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]]
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local cwd = (...):gsub('%.init$', '') .. "."
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local TimersManager = Object:extend()
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local Timer = require(cwd .. "libs.timer")
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local Tween = require(cwd .. "libs.tween")
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function TimersManager:new(subject)
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self.subject = subject
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self.time = 0
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self.timers = {}
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self.switches = {}
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self.tweens = {}
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end
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-- UPDATE
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-- Update every timers
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function TimersManager:update(dt)
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self.time = self.time + dt
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for k, timer in pairs(self.timers) do
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timer:update(dt)
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end
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self:updateSwitches(dt)
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self:updateTweens(dt)
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end
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-- TIMER FUNCTIONS
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-- Handle the timers
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function TimersManager:newTimer(duration, name)
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self.timers[name] = Timer(self, duration, name)
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end
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function TimersManager:timerResponse(timername)
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if self.subject.timerResponse == nil then
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core.debug:warning("TimersManager", "the subject have no timerResponse function")
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return 0
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end
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self.subject:timerResponse(timername)
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end
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-- SWITCH FUNCTIONS
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-- Handle switches
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function TimersManager:newSwitch(start, bools)
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local newSwitch = {}
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-- we add the data into a switch wrapper
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newSwitch.bools = bools
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newSwitch.start = self.time + start -- /!\ START IS RELATIVE TO CURRENT TIME
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newSwitch.clear = newSwitch.start + 1
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table.insert(self.switches, newSwitch)
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end
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function TimersManager:updateSwitches(dt)
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for i, switch in ipairs(self.switches) do
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if (self.time > switch.start) then
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-- We test each boolean in the switch
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for i, bool in ipairs(switch.bools) do
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-- if it's nil, we set it to true
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if self.subject[bool] == nil then
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self.subject[bool] = true
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else
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-- if it's not nil, we reverse the boolean
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self.subject[bool] = (self.subject[bool] == false)
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end
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end
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table.remove(self.switches, i)
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end
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end
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end
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-- TWEENING FUNCTIONS
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-- Handle tween support via tween.lua
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function TimersManager: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.time + 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 TimersManager:updateTweens(dt)
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for i, tweenWrapper in ipairs(self.tweens) do
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if (self.time > 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 TimersManager:clearEndedTweens()
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for i, tweenWrapper in ipairs(self.tweens) do
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if (self.time > 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 TimersManager
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