update

systems/damage_system.gd

@@ -1 +1,38 @@
 extends Node
+
+func _ready() -> void:
+  EventBus.damage_requested.connect(_on_damage_requested)
+
+func _on_damage_requested(attacker: Node, target: Node, amount: float) -> void:
+  var remaining: float = amount
+  var shield_system: Node = get_node_or_null("../ShieldSystem")
+  if shield_system:
+    remaining = shield_system.absorb(target, remaining)
+  EventBus.damage_dealt.emit(attacker, target, amount)
+  if remaining > 0:
+    _apply_damage(target, remaining)
+
+func _apply_damage(entity: Node, amount: float) -> void:
+  if entity == _get_player():
+    var health: float = PlayerData.health - amount
+    if health < 0:
+      health = 0
+    PlayerData.set_health(health)
+  elif entity.is_in_group("boss"):
+    var health: float = BossData.get_stat(entity, "health") - amount
+    if health < 0:
+      health = 0
+    BossData.set_health(entity, health)
+  elif entity.is_in_group("enemies"):
+    var health: float = EnemyData.get_stat(entity, "health") - amount
+    if health < 0:
+      health = 0
+    EnemyData.set_health(entity, health)
+  elif entity.is_in_group("portals"):
+    var health: float = PortalData.get_stat(entity, "health") - amount
+    if health < 0:
+      health = 0
+    PortalData.set_health(entity, health)
+
+func _get_player() -> Node:
+  return get_tree().get_first_node_in_group("player")