src: add a basic scene system

sonic-radiance.love/core/init.lua

@@ -31,17 +31,25 @@ local Options     = require "core.options"
 local Input       = require "core.input"
 local Screen      = require "core.screen"
 local Lang        = require "core.lang"
+local SceneManager= require "core.scenemanager"
 
 function CoreSystem:new()
   self.debug    = DebugSystem(self)
   self.options  = Options(self)
   self.input    = Input(self)
   self.screen   = Screen(self)
+  self.scenemanager = SceneManager(self)
 end
 
 function CoreSystem:update(dt)
   self.debug:update(dt)
   self.input:update(dt)
+
+  self.scenemanager:update(dt)
+end
+
+function CoreSystem:draw()
+  self.scenemanager:draw()
 end
 
 function CoreSystem:exit()

sonic-radiance.love/core/modules/scenes.lua

@@ -0,0 +1,47 @@
+-- scenes.lua :: the scene object, that aim to give a better control to the engine
+-- to the different scene, without having to call too much boilerplate
+
+--[[
+  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 Scene  = Object:extend()
+
+function Scene:new()
+
+end
+
+function Scene:register()
+  core.scenemanager.currentScene = self
+end
+
+function Scene:update(dt)
+  -- Empty function, is just here to avoid crash
+end
+
+function Scene:draw()
+
+end
+
+function Scene:clear()
+
+end
+
+return Scene

sonic-radiance.love/core/scenemanager.lua

@@ -0,0 +1,51 @@
+-- scene.lua :: a basic scene management system, that work by sending the different
+-- core functions to the scene, normally without the scene itself having to manage
+-- them.
+
+--[[
+  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 SceneManager  = Object:extend()
+
+function SceneManager:new(controller)
+  self.controller   = controller
+  self.currentScene = nil
+end
+
+function SceneManager:update(dt)
+  if (self.currentScene ~= nil) then
+    self.currentScene:update(dt)
+  end
+end
+
+function SceneManager:clearScene()
+  self.currentScene = nil
+end
+
+function SceneManager:draw()
+  self.controller.screen:apply()
+  if (self.currentScene ~= nil) then
+    self.currentScene:draw(dt)
+  end
+  self.controller.screen:cease()
+end
+
+return SceneManager

sonic-radiance.love/main.lua

@@ -26,12 +26,20 @@ Object  = require "libs.classic"
 Core    = require "core"
 Game    = require "game"
 
+scenes  = require "scenes"
+
 function love.load()
   core = Core()
   game = Game()
+
+  scenes.test()
 end
 
 function love.update(dt)
   core:update(dt)
   game:update(dt)
 end
+
+function love.draw()
+  core:draw()
+end

sonic-radiance.love/scenes/init.lua

@@ -0,0 +1,3 @@
+return {
+  test = require "scenes.test_scene"
+}

sonic-radiance.love/scenes/test_scene/init.lua

@@ -0,0 +1,47 @@
+-- scenes/test :: a basic test scene
+
+--[[
+  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 Scene = require "core.modules.scenes"
+local TestScene = Scene:extend()
+
+function TestScene:new()
+  TestScene.super.new()
+
+  self.i = 0
+
+  self:register()
+end
+
+function TestScene:update(dt)
+  self.i = self.i + dt
+end
+
+function TestScene:draw()
+  love.graphics.setColor(0, 0, 1, 1)
+  love.graphics.rectangle("fill", 0, 0, 424, 240)
+
+  love.graphics.setColor(0, 0, 0, 1)
+  love.graphics.print(self.i, 16, 16)
+end
+
+return TestScene