Impact Attribute Damage

COGITO/Components/ImpactAttributeDamage.gd

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+extends Node3D
+class_name ImpactAttributeDamage
+# Attached to a RigidBody, this components will will damage a CogitoAttribute when the rigidbody collides with something.
+@onready var parent_node = get_parent()
+
+## This is what will take damage
+@export var attribute : CogitoAttribute
+## The minimum velocity at time of impact to take damage. This prevents light hits from damageing the attribute
+@export var minimum_velocity : float = 1.0
+## How much damage to do to the attribute
+@export var damage : int
+## Forced delay between impact times (in seconds).
+@export var next_impact_time : float = 0.3
+
+var time_passed : float
+
+# Called when the node enters the scene tree for the first time.
+func _ready() -> void:
+	if !parent_node.is_class("RigidBody3D"):
+		print("ImpactDamage: ", parent_node, " needs to be RigidBody3D.")
+	else:
+		parent_node.body_entered.connect(_on_parent_node_collision)
+
+
+func _on_parent_node_collision(_collided_node):
+	if parent_node.linear_velocity.length() > minimum_velocity and time_passed == 0:
+		attribute.subtract(damage)
+		time_passed = next_impact_time
+
+
+func _physics_process(delta: float) -> void:
+	if time_passed > 0:
+		time_passed -= delta
+	else:
+		time_passed = 0

COGITO/Components/ImpactAttributeDamage.tscn

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+[gd_scene load_steps=2 format=3 uid="uid://b5cjuw2emh3wq"]
+
+[ext_resource type="Script" path="res://COGITO/Components/ImpactAttributeDamage.gd" id="1_lfg44"]
+
+[node name="ImpactAttributeDamage" type="Node3D"]
+script = ExtResource("1_lfg44")
+damage = 1