Godot Engine Game Development Projects

Player code

Add a new signal and a new variable to Player.gd:

signal lives_changedvar lives = 0 setget set_lives

The setget statement in GDScript allows you to specify a function that will be called whenever the value of a given variable is changed. This means that when lives decreases, you can emit a signal to let the HUD know it needs to update the display:

func set_lives(value):    lives = value    emit_signal("lives_changed", lives)

The start() function is called by Main when a new game starts:

func start():    $Sprite.show()    self.lives = 3    change_state(ALIVE)

When using setget, if you access the variable locally (in the local script), you must put self. in front of the variable name. If you don't, the setget function will not be called.

Now, ...