Initial commit

event.lua

@@ -0,0 +1,30 @@
+-- abstract.event
+local abstract = require((...):match("^(.-abstract)%."))
+local input = abstract.input
+local time = abstract.time
+local scene = abstract.scene
+
+--- The events: callback functions that will be called when something interesting occurs.
+-- Theses are expected to be redefined in the game.
+-- For backend writers: if they already contain code, then this code has to be called on each call.
+-- @usage -- in the game's code
+-- abstract.event.draw = function()
+--   abstract.draw.text(5, 5, "Hello world")
+-- end
+return {
+	--- Called each time the game loop is ran. Don't draw here.
+	-- @tparam number dt time since last call, in seconds
+	-- @impl mixed
+	update = function(dt)
+		input.update(dt)
+		time.update(dt)
+		scene.update(dt)
+	end,
+	
+	--- Called each time the game expect a new frame to be drawn.
+	-- The screen is expected to be cleared since last frame.
+	-- @impl backend
+	draw = function()
+		scene.draw()
+	end
+}