Week 5 Challenge - Player Death Animation

First, we need to make a slight update to the logic in the game controller.

Game Controller

This change ensures that our signal to kill the player can ONLY happen once, by checking that the health is above zero before issuing the signal.

func playerDamage():
	#one can not kill what is dead....
	if player.health >0:
		player.health -= 20
		#is the player dead?
		if player.health <= 0:
			#kill him
			playerDeath.emit()

Scene Manager

In the scene_manager, we have created a connection that listens for the game controller issuing the player death command:

GameController.playerDeath.connect(killPlayer)

We must change the killPlayer function. It will tell the player to die, but will then start a timer rather than immediatly reloading the scene.

func killPlayer():
	# tell player to die - starts death animation
	player.killPlayer()
	if timer.is_stopped():
		timer.start(4)

Notice that we only start the timer if it is not already running. Otherwise if the scene_manager happens to hear more playerDeath signals from the GameController, it will keep restarting the timer.

The resetWorld function is connected to the timeout event of the timer. It looks like this:

func resetWorld():
	print("screne manager resetting world")
	GameController.resetPlayer()
	get_tree().reload_current_scene()

Player

Lastly, the player code needs to ensure that the user can not do anything when their death animation is playing.

A simple way to do this is to create a boolean that simply keeps track of whether they are alive or not.

var living = true

We can then update the killPlayer function to check if the player is currently living and update the variable before calling the death animation.

func killPlayer():
	print("kill the player")
	if living:
		living = false
		#play death animation
		playerSprite.play("death")

With the living variable set to false, we simply check the variable before doing anything in the _physics_process function.

func _physics_process(delta: float) -> void:
	if living:
		# Add the gravity.
		if not is_on_floor():
			velocity += get_gravity() * delta
            .......and so forth....

When the timer ends and the scene reloads, all of these variables will be reset and the loop begins again.