feat(modules): new Timers modules

gamecore/modules/init.lua

@@ -28,5 +28,6 @@ local cwd  = (...):gsub('%.init$', '') .. "."
 modules.Assets      = require(cwd .. "assets")
 modules.GameSystem  = require(cwd .. "gamesystem")
 modules.MenuSystem  = require(cwd .. "menusystem")
+modules.Timers      = require(cwd .. "timers")
 
 return modules

gamecore/modules/timers/init.lua

@@ -0,0 +1,61 @@
+-- timers :: a basic implementation of a timer system.
+
+--[[
+  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 cwd = (...):gsub('%.init$', '') .. "."
+
+local TimersManager = Object:extend()
+local Timer = require(cwd .. "libs.timer")
+
+
+function TimersManager:new(subject)
+  self.subject  = subject
+  self.time    = 0
+
+  self.timers   = {}
+end
+
+-- UPDATE
+-- Update every timers
+
+function TimersManager:update(dt)
+  for k, timer in pairs(self.timers) do
+    timer:update(dt)
+  end
+end
+
+-- TIMER FUNCTIONS
+-- Handle the timers
+
+function TimersManager:newTimer(duration, name)
+  self.timers[name] = Timer(self, duration, name)
+end
+
+function TimersManager:timerResponse(timername)
+  if self.subject.timerResponse == nil then
+    core.debug:warning("TimersManager", "the subject have no timerResponse function")
+    return 0
+  end
+  self.subject:timerResponse(timername)
+end
+
+return TimersManager

gamecore/modules/timers/libs/timer.lua

@@ -0,0 +1,45 @@
+-- timer.lua :: a basic implementation of a timer for the actor system.
+
+--[[
+  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 Timer = Object:extend()
+
+function Timer:new(controller, duration, name)
+  self.controller = controller
+
+  self.time = duration
+  self.name = name
+end
+
+function Timer:update(dt)
+  self.time = self.time - dt
+  if (self.time <= 0) then
+    self:finish()
+  end
+end
+
+function Timer:finish()
+  self.controller:timerResponse(self.name)
+  self.controller.timers[self.name] = nil
+end
+
+return Timer