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MyObsidianVault/Knowledgebase/Godot/2D/_old/Tutorial M5 - Loot it all/01. Self delete on collision (Area2D node).md

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+```python
+extends Area2D
+
+func _ready() -> void:
+	area_entered.connect(_on_area_entered)
+
+func _on_area_entered(area_that_entred: Area2D) -> void:
+	queue_free()
+```

MyObsidianVault/Knowledgebase/Godot/2D/_old/Tutorial M5 - Loot it all/2024-03-20 Simple signal example.md

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+````python
+extends Area2D
+
+var max_speed := 1200.0
+var velocity := Vector2(0, 0)
+var steering_factor := 3.0
+
+var health := 10
+
+
+func _ready() -> void:
+	area_entered.connect(_on_area_entered)
+	# This call updates the health bar to match the health variable when the
+	# game starts.
+	set_health(health)
+
+
+func _process(delta: float) -> void:
+	var direction := Vector2(0, 0)
+	direction.x = Input.get_axis("move_left", "move_right")
+	direction.y = Input.get_axis("move_up", "move_down")
+
+	if direction.length() > 1.0:
+		direction = direction.normalized()
+
+	var desired_velocity := max_speed * direction
+	var steering := desired_velocity - velocity
+	velocity += steering * steering_factor * delta
+	position += velocity * delta
+
+	if velocity.length() > 0.0:
+		get_node("Sprite2D").rotation = velocity.angle()
+
+
+func set_health(new_health: int) -> void:
+	health = new_health
+	get_node("UI/HealthBar").value = health
+
+
+func _on_area_entered(area_that_entered: Area2D) -> void:
+	set_health(health + 10)
+```
+