adds basic menu functionnality

Menu.gd

@@ -1,12 +1,15 @@
-extends CanvasLayer
+extends Control
 
-signal track_changed(track_idx)
+signal game_started()
+signal track_changed()
 signal skin_changed(skin)
 
-# Declare member variables here. Examples:
-# var a = 2
-# var b = "text"
+enum Actions { PLAY, CHANGE_TRACK, QUIT }
+var _focus = null setget _set_focus
 
+func _set_focus(value):
+	_focus = value
+	print("New focus: ", value)
 # Called when the node enters the scene tree for the first time.
 func _ready():
 	pass # Replace with function body.
@@ -14,3 +17,42 @@ func _ready():
 # Called every frame. 'delta' is the elapsed time since the previous frame.
 #func _process(delta):
 #	pass
+
+func _input(event):
+	if event is InputEventMouseButton:
+		if _focus != null:
+			if event.button_index == BUTTON_LEFT and event.pressed:
+				match _focus:
+					Actions.PLAY:
+						emit_signal("game_started")
+					Actions.CHANGE_TRACK:
+						emit_signal("track_changed")
+					Actions.QUIT:
+						get_tree().quit()
+				_focus = null
+
+func _on_Jouer_mouse_exited():
+	get_node("Main/Jouer").set("custom_colors/font_color", Color.white)
+	_focus = null
+
+
+func _on_Jouer_mouse_entered():
+	get_node("Main/Jouer").set("custom_colors/font_color", Color.orange)
+	_set_focus(Actions.PLAY)
+
+func _on_Options_mouse_exited():
+	get_node("Main/Options").set("custom_colors/font_color", Color.white)
+	_focus = null
+
+func _on_Options_mouse_entered():
+	get_node("Main/Options").set("custom_colors/font_color", Color.orange)
+	_set_focus(Actions.CHANGE_TRACK)
+
+
+func _on_Quitter_mouse_entered():
+	get_node("Main/Quitter").set("custom_colors/font_color", Color.orange)
+	_set_focus(Actions.QUIT)
+
+func _on_Quitter_mouse_exited():
+	get_node("Main/Quitter").set("custom_colors/font_color", Color.white)
+	_focus = null