Tuto tiny-ecs demo Part 3 tiny-ecs World
tiny-ecs World
We will create our tiny-ecs world in the LevelX scene (cf: scenemanager).
Please create the levelX.lua file in the "scenes" folder:
LevelX = Core.class(Sprite)
function LevelX:init()
-- bg
application:setBackgroundColor(0x5a002d)
-- the camera
self.camera = Sprite.new()
-- tiny-ecs
self.tiny = require "classes/tiny-ecs"
self.tiny.world = self.tiny.world()
-- order
self:addChild(self.camera)
-- listeners
self:addEventListener("enterBegin", self.onTransitionInBegin, self)
self:addEventListener("enterEnd", self.onTransitionInEnd, self)
self:addEventListener("exitBegin", self.onTransitionOutBegin, self)
self:addEventListener("exitEnd", self.onTransitionOutEnd, self)
end
-- game loop
local dt
function LevelX:onEnterFrame(e)
dt = e.deltaTime
self.tiny.world:update(dt) -- tiny world
end
-- event listeners
function LevelX:onTransitionInBegin() self:addEventListener(Event.ENTER_FRAME, self.onEnterFrame, self) end
function LevelX:onTransitionInEnd() self:myKeysPressed() end
function LevelX:onTransitionOutBegin() self:removeAllListeners() end
function LevelX:onTransitionOutEnd() end
-- app keys handler
function LevelX:myKeysPressed()
self:addEventListener(Event.KEY_DOWN, function(e)
-- menu (mobiles and desktops)
if e.keyCode == KeyCode.BACK or e.keyCode == KeyCode.ESC then
scenemanager:changeScene("menu", 1, transitions[2], easings[2])
end
end)
end
The camera is a Sprite which will hold our actors (entities).
Then we initialize tiny-ecs and make a reference to its world.
In the game loop, we update our tiny-ecs world, but there is nothing to update yet!
All the rest is a classic scenemanager scene (SceneManager).
At least you can now run the project and navigate to the Level 1 scene, using your finger, mouse or keyboard :-)
Entity
where we will add our actors (Entities) to.
Create the main.lua file which contains the scenemanager and a list of scene transitions and easings:
Menu scene
The Menu is a scene, so to better organise our code, please create a folder called "scenes" for example and create the menu.lua file inside it.
Next?
Next we will build our Entities, their Components and the Systems.
Prev.: Tuto tiny-ecs demo Part 2 Menu
Next: xxx
