update

components/healthbar.gd

@@ -0,0 +1,57 @@
+extends Sprite3D
+
+@onready var viewport: SubViewport = $SubViewport
+@onready var health_bar: ProgressBar = $SubViewport/HealthBar
+@onready var border: ColorRect = $SubViewport/Border
+@onready var parent_node: Node = get_parent()
+
+var shield_bar: ProgressBar = null
+var style_normal: StyleBoxFlat
+var style_aggro: StyleBoxFlat
+
+func _ready() -> void:
+  texture = viewport.get_texture()
+  shield_bar = $SubViewport.get_node_or_null("ShieldBar")
+  border.visible = false
+  style_normal = health_bar.get_theme_stylebox("fill").duplicate()
+  style_aggro = style_normal.duplicate()
+  style_aggro.bg_color = Color(0.2, 0.4, 0.9, 1)
+  EventBus.target_changed.connect(_on_target_changed)
+  EventBus.health_changed.connect(_on_health_changed)
+  EventBus.shield_changed.connect(_on_shield_changed)
+  _init_bars()
+
+func _init_bars() -> void:
+  var max_health: Variant = Stats.get_stat(parent_node, "max_health")
+  if max_health != null:
+    health_bar.max_value = max_health
+    health_bar.value = Stats.get_stat(parent_node, "health")
+  var max_shield: Variant = Stats.get_stat(parent_node, "max_shield")
+  if shield_bar:
+    if max_shield != null and max_shield > 0:
+      shield_bar.max_value = max_shield
+      shield_bar.value = Stats.get_stat(parent_node, "shield")
+    else:
+      shield_bar.visible = false
+
+func _process(_delta: float) -> void:
+  var player: Node = get_tree().get_first_node_in_group("player")
+  if player and "target" in parent_node and parent_node.target == player:
+    health_bar.add_theme_stylebox_override("fill", style_aggro)
+  else:
+    health_bar.add_theme_stylebox_override("fill", style_normal)
+
+func _on_health_changed(entity: Node, current: float, max_val: float) -> void:
+  if entity != parent_node:
+    return
+  health_bar.max_value = max_val
+  health_bar.value = current
+
+func _on_shield_changed(entity: Node, current: float, max_val: float) -> void:
+  if entity != parent_node or shield_bar == null:
+    return
+  shield_bar.max_value = max_val
+  shield_bar.value = current
+
+func _on_target_changed(_player: Node, target: Node) -> void:
+  border.visible = (target == get_parent())

components/healthbar.gd.uid

@@ -0,0 +1 @@
+uid://d1w7vm7t3k3ts