last init

scripts/components/health.gd

@@ -0,0 +1,33 @@
+extends Node
+
+@export var max_health := 100.0
+const HEALTH_REGEN := 1.0
+var current_health: float
+
+func _ready() -> void:
+  current_health = max_health
+  EventBus.damage_requested.connect(_on_damage_requested)
+
+func _process(delta: float) -> void:
+  if current_health > 0 and current_health < max_health:
+    current_health = min(current_health + HEALTH_REGEN * delta, max_health)
+    EventBus.health_changed.emit(get_parent(), current_health, max_health)
+
+func _on_damage_requested(attacker: Node, target: Node, amount: float) -> void:
+  if target != get_parent():
+    return
+  var remaining: float = amount
+  var shield: Node = get_parent().get_node_or_null("Shield")
+  if shield:
+    remaining = shield.absorb(remaining)
+  EventBus.damage_dealt.emit(attacker, get_parent(), amount)
+  if remaining > 0:
+    take_damage(remaining, attacker)
+
+func take_damage(amount: float, attacker: Node) -> void:
+  current_health -= amount
+  if current_health <= 0:
+    current_health = 0
+  EventBus.health_changed.emit(get_parent(), current_health, max_health)
+  if current_health <= 0:
+    EventBus.entity_died.emit(get_parent())