sonic-radiance/sonic-radiance.love/birb/classes/time/init.lua

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-- time.lua :: a timer, tweener and timed switch handler.
-- This class need birb.libs.tween to work
--[[
Copyright © 2019 Kazhnuz
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
]]
local TweenManager = Object:extend()
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local tween = require "birb.libs.tween"
local Timer = require "birb.classes.time.timer"
function TweenManager:new(subject)
self.subject = subject
self.time = 0
self.tweens = {}
self.switches = {}
self.timers = {}
end
function TweenManager:newTween(start, duration, target, easing)
table.insert(self.tweens, self:createTween(start, duration, target, easing))
end
function TweenManager:setNamedTween(name, start, duration, target, easing)
self.tweens[name] = nil
self.tweens[name] = self:createTween(start, duration, target, easing)
end
function TweenManager:createTween(start, duration, target, easing)
local newTween = {}
-- we add the data into a tween wrapper
newTween.tween = tween.new(duration, self.subject, target, easing)
newTween.start = self.time + start -- /!\ START IS RELATIVE TO CURRENT TIME
newTween.clear = newTween.start + duration
return newTween
end
function TweenManager:removeNamedTween(name)
self.tweens[name] = nil
end
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-- TIMER FUNCTIONS
-- Help to get info from timers
function TweenManager:newTimer(start, name)
self.timers[name] = Timer(self, name, start)
end
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function TweenManager:delayTimer(time, name, absolute)
if (self.timers[name] ~= nil) then
self.timers[name]:delay(time, absolute)
end
end
function TweenManager:getTimerInfo(name)
if (self.timers[name] ~= nil) then
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return self.timers[name]:getInfo()
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end
end
function TweenManager:removeTimer(name)
self.timers[name] = nil
end
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-- SWITCH FUNCTIONS
-- Help to handle switches
function TweenManager:newSwitch(start, bools)
local newSwitch = {}
-- we add the data into a tween wrapper
newSwitch.bools = bools
newSwitch.start = self.time + start -- /!\ START IS RELATIVE TO CURRENT TIME
newSwitch.clear = newSwitch.start + 1
table.insert(self.switches, newSwitch)
end
function TweenManager:update(dt)
self.time = self.time + dt
for key, tweenWrapper in pairs(self.tweens) do
if (self.time > tweenWrapper.start) then
tweenWrapper.tween:update(dt)
if (self.time > tweenWrapper.clear) then
self.tweens[key] = nil
end
end
end
for i, switch in pairs(self.switches) do
if (self.time > switch.start) then
-- We test each boolean in the switch
for i, bool in ipairs(switch.bools) do
-- if it's nil, we set it to true
if self.subject[bool] == nil then
self.subject[bool] = true
else
-- if it's not nil, we reverse the boolean
self.subject[bool] = (self.subject[bool] == false)
end
end
table.remove(self.switches, i)
end
end
for k, timer in pairs(self.timers) do
timer:update(dt)
end
self:clearEndedTweens()
end
function TweenManager:timerResponse(timername)
if self.subject.timerResponse == nil then
core.debug:warning("tweenmanager", "the subject have no timerResponse function")
return 0
end
self.subject:timerResponse(timername)
end
function TweenManager:clearEndedTweens(dt)
for i, tweenWrapper in ipairs(self.tweens) do
if (self.time > tweenWrapper.clear) then
table.remove(self.tweens, i)
end
end
end
return TweenManager