update

scenes/enemy/boss.gd

@@ -0,0 +1,5 @@
+extends "res://scenes/enemy/enemy.gd"
+
+func _ready() -> void:
+  super._ready()
+  add_to_group("boss")

scenes/enemy/boss.gd.uid

@@ -0,0 +1 @@
+uid://bkehq3dqyp2yd

scenes/enemy/boss.tscn

@@ -0,0 +1,108 @@
+[gd_scene load_steps=6 format=3]
+
+[ext_resource type="Script" path="res://scenes/enemy/boss.gd" id="1"]
+[ext_resource type="Script" path="res://scenes/healthbar.gd" id="4"]
+[ext_resource type="Script" path="res://scenes/enemy/enemy_movement.gd" id="5"]
+[ext_resource type="Resource" path="res://scenes/enemy/boss_stats.tres" id="8"]
+
+[sub_resource type="CapsuleShape3D" id="CapsuleShape3D_1"]
+radius = 0.6
+height = 2.0
+
+[sub_resource type="CapsuleShape3D" id="CapsuleShape3D_2"]
+radius = 0.6
+height = 2.0
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_health_bg"]
+bg_color = Color(0.3, 0.1, 0.1, 1)
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_health_fill"]
+bg_color = Color(0.2, 0.8, 0.2, 1)
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_shield_bg"]
+bg_color = Color(0.1, 0.1, 0.3, 1)
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_shield_fill"]
+bg_color = Color(0.2, 0.5, 0.9, 1)
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_1"]
+albedo_color = Color(0.6, 0.1, 0.6, 1)
+
+[sub_resource type="SphereMesh" id="SphereMesh_1"]
+radius = 0.75
+height = 1.5
+material = SubResource("StandardMaterial3D_1")
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_1"]
+radius = 8.0
+
+[node name="Boss" type="CharacterBody3D"]
+script = ExtResource("1")
+stats = ExtResource("8")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+shape = SubResource("CapsuleShape3D_1")
+
+[node name="Mesh" type="MeshInstance3D" parent="."]
+transform = Transform3D(1.5, 0, 0, 0, 1.5, 0, 0, 0, 1.5, 0, 0, 0)
+mesh = SubResource("SphereMesh_1")
+
+[node name="HitArea" type="Area3D" parent="."]
+collision_layer = 4
+collision_mask = 0
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="HitArea"]
+shape = SubResource("CapsuleShape3D_2")
+
+[node name="NavigationAgent3D" type="NavigationAgent3D" parent="."]
+
+[node name="EnemyMovement" type="Node" parent="."]
+script = ExtResource("5")
+
+[node name="DetectionArea" type="Area3D" parent="."]
+collision_layer = 0
+collision_mask = 1
+monitoring = true
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="DetectionArea"]
+shape = SubResource("SphereShape3D_1")
+
+[node name="Healthbar" type="Sprite3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 2.0, 0)
+billboard = 1
+pixel_size = 0.01
+script = ExtResource("4")
+
+[node name="SubViewport" type="SubViewport" parent="Healthbar"]
+transparent_bg = true
+size = Vector2i(104, 29)
+
+[node name="Border" type="ColorRect" parent="Healthbar/SubViewport"]
+offset_right = 104.0
+offset_bottom = 29.0
+color = Color(1, 0.9, 0.2, 1)
+
+[node name="HealthBar" type="ProgressBar" parent="Healthbar/SubViewport"]
+offset_left = 2.0
+offset_top = 2.0
+offset_right = 102.0
+offset_bottom = 12.0
+theme_override_styles/background = SubResource("StyleBoxFlat_health_bg")
+theme_override_styles/fill = SubResource("StyleBoxFlat_health_fill")
+max_value = 500.0
+value = 500.0
+show_percentage = false
+
+[node name="ShieldBar" type="ProgressBar" parent="Healthbar/SubViewport"]
+offset_left = 2.0
+offset_top = 15.0
+offset_right = 102.0
+offset_bottom = 27.0
+theme_override_styles/background = SubResource("StyleBoxFlat_shield_bg")
+theme_override_styles/fill = SubResource("StyleBoxFlat_shield_fill")
+max_value = 100.0
+value = 100.0
+show_percentage = false
+
+[connection signal="body_entered" from="DetectionArea" to="." method="_on_detection_area_body_entered"]
+[connection signal="body_exited" from="DetectionArea" to="." method="_on_detection_area_body_exited"]

scenes/enemy/boss_stats.gd

@@ -0,0 +1,2 @@
+extends EnemyStats
+class_name BossStats

scenes/enemy/boss_stats.gd.uid

@@ -0,0 +1 @@
+uid://bio01w2gd5e7q

scenes/enemy/boss_stats.tres

@@ -0,0 +1,20 @@
+[gd_resource type="Resource" script_class="BossStats" load_steps=2 format=3]
+
+[ext_resource type="Script" path="res://scenes/enemy/boss_stats.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+max_health = 500.0
+health_regen = 0.0
+max_shield = 100.0
+shield_regen_delay = 5.0
+shield_regen_time = 8.0
+speed = 3.0
+attack_range = 2.0
+attack_cooldown = 1.5
+attack_damage = 5.0
+regen_fast = 0.1
+regen_slow = 0.01
+aggro_decay = 1.0
+portal_radius = 10.0
+alert_radius = 10.0

scenes/enemy/enemy.gd

@@ -0,0 +1,37 @@
+extends CharacterBody3D
+
+enum State { IDLE, CHASE, ATTACK, RETURN }
+
+@export var stats: BaseStats
+
+var state: int = State.IDLE
+var target: Node3D = null
+var spawn_position: Vector3
+var portal: Node3D = null
+var gravity: float = ProjectSettings.get_setting("physics/3d/default_gravity")
+
+func _ready() -> void:
+  spawn_position = global_position
+  add_to_group("enemies")
+  Stats.register(self, stats)
+  EventBus.entity_died.connect(_on_entity_died)
+
+func _exit_tree() -> void:
+  Stats.deregister(self)
+
+func _on_entity_died(entity: Node) -> void:
+  if entity == self:
+    queue_free()
+
+func _physics_process(delta: float) -> void:
+  if not is_on_floor():
+    velocity.y -= gravity * delta
+  move_and_slide()
+
+func _on_detection_area_body_entered(body: Node3D) -> void:
+  if body is CharacterBody3D and body.name == "Player":
+    EventBus.enemy_detected.emit(self, body)
+
+func _on_detection_area_body_exited(body: Node3D) -> void:
+  if body is CharacterBody3D and body.name == "Player":
+    EventBus.enemy_lost.emit(self, body)

scenes/enemy/enemy.gd.uid

@@ -0,0 +1 @@
+uid://bwi75jx0agktd

scenes/enemy/enemy.tscn

@@ -0,0 +1,107 @@
+[gd_scene load_steps=6 format=3]
+
+[ext_resource type="Script" path="res://scenes/enemy/enemy.gd" id="1"]
+[ext_resource type="Script" path="res://scenes/healthbar.gd" id="4"]
+[ext_resource type="Script" path="res://scenes/enemy/enemy_movement.gd" id="5"]
+[ext_resource type="Resource" path="res://scenes/enemy/enemy_stats.tres" id="8"]
+
+[sub_resource type="CapsuleShape3D" id="CapsuleShape3D_1"]
+radius = 0.4
+height = 1.5
+
+[sub_resource type="CapsuleShape3D" id="CapsuleShape3D_2"]
+radius = 0.4
+height = 1.5
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_health_bg"]
+bg_color = Color(0.3, 0.1, 0.1, 1)
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_health_fill"]
+bg_color = Color(0.2, 0.8, 0.2, 1)
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_shield_bg"]
+bg_color = Color(0.1, 0.1, 0.3, 1)
+
+[sub_resource type="StyleBoxFlat" id="StyleBoxFlat_shield_fill"]
+bg_color = Color(0.2, 0.5, 0.9, 1)
+
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_1"]
+albedo_color = Color(0.8, 0.1, 0.1, 1)
+
+[sub_resource type="SphereMesh" id="SphereMesh_1"]
+radius = 0.5
+height = 1.0
+material = SubResource("StandardMaterial3D_1")
+
+[sub_resource type="SphereShape3D" id="SphereShape3D_1"]
+radius = 10.0
+
+[node name="Enemy" type="CharacterBody3D"]
+script = ExtResource("1")
+stats = ExtResource("8")
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="."]
+shape = SubResource("CapsuleShape3D_1")
+
+[node name="Mesh" type="MeshInstance3D" parent="."]
+mesh = SubResource("SphereMesh_1")
+
+[node name="HitArea" type="Area3D" parent="."]
+collision_layer = 4
+collision_mask = 0
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="HitArea"]
+shape = SubResource("CapsuleShape3D_2")
+
+[node name="NavigationAgent3D" type="NavigationAgent3D" parent="."]
+
+[node name="EnemyMovement" type="Node" parent="."]
+script = ExtResource("5")
+
+[node name="DetectionArea" type="Area3D" parent="."]
+collision_layer = 0
+collision_mask = 1
+monitoring = true
+
+[node name="CollisionShape3D" type="CollisionShape3D" parent="DetectionArea"]
+shape = SubResource("SphereShape3D_1")
+
+[node name="Healthbar" type="Sprite3D" parent="."]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.5, 0)
+billboard = 1
+pixel_size = 0.01
+script = ExtResource("4")
+
+[node name="SubViewport" type="SubViewport" parent="Healthbar"]
+transparent_bg = true
+size = Vector2i(104, 29)
+
+[node name="Border" type="ColorRect" parent="Healthbar/SubViewport"]
+offset_right = 104.0
+offset_bottom = 29.0
+color = Color(1, 0.9, 0.2, 1)
+
+[node name="HealthBar" type="ProgressBar" parent="Healthbar/SubViewport"]
+offset_left = 2.0
+offset_top = 2.0
+offset_right = 102.0
+offset_bottom = 12.0
+theme_override_styles/background = SubResource("StyleBoxFlat_health_bg")
+theme_override_styles/fill = SubResource("StyleBoxFlat_health_fill")
+max_value = 100.0
+value = 100.0
+show_percentage = false
+
+[node name="ShieldBar" type="ProgressBar" parent="Healthbar/SubViewport"]
+offset_left = 2.0
+offset_top = 15.0
+offset_right = 102.0
+offset_bottom = 27.0
+theme_override_styles/background = SubResource("StyleBoxFlat_shield_bg")
+theme_override_styles/fill = SubResource("StyleBoxFlat_shield_fill")
+max_value = 50.0
+value = 50.0
+show_percentage = false
+
+[connection signal="body_entered" from="DetectionArea" to="." method="_on_detection_area_body_entered"]
+[connection signal="body_exited" from="DetectionArea" to="." method="_on_detection_area_body_exited"]

scenes/enemy/enemy_movement.gd

@@ -0,0 +1,62 @@
+extends Node
+
+const SPEED := 3.0
+const ATTACK_RANGE := 2.0
+const REGEN_FAST := 0.10
+const REGEN_SLOW := 0.01
+
+@onready var enemy: CharacterBody3D = get_parent()
+@onready var nav_agent: NavigationAgent3D = get_parent().get_node("NavigationAgent3D")
+
+func _physics_process(delta: float) -> void:
+  match enemy.state:
+    enemy.State.IDLE:
+      enemy.velocity.x = 0
+      enemy.velocity.z = 0
+    enemy.State.CHASE:
+      _chase()
+    enemy.State.RETURN:
+      _return_to_spawn(delta)
+
+func _chase() -> void:
+  if not is_instance_valid(enemy.target):
+    enemy.state = enemy.State.RETURN
+    return
+  var dist_to_target := enemy.global_position.distance_to(enemy.target.global_position)
+  if dist_to_target <= ATTACK_RANGE:
+    enemy.state = enemy.State.ATTACK
+    return
+  nav_agent.target_position = enemy.target.global_position
+  var next_pos := nav_agent.get_next_path_position()
+  var direction := (next_pos - enemy.global_position).normalized()
+  direction.y = 0
+  enemy.velocity.x = direction.x * SPEED
+  enemy.velocity.z = direction.z * SPEED
+
+func _return_to_spawn(delta: float) -> void:
+  var dist := enemy.global_position.distance_to(enemy.spawn_position)
+  if dist < 1.0:
+    enemy.state = enemy.State.IDLE
+    enemy.velocity.x = 0
+    enemy.velocity.z = 0
+    return
+  nav_agent.target_position = enemy.spawn_position
+  var next_pos := nav_agent.get_next_path_position()
+  var direction := (next_pos - enemy.global_position).normalized()
+  direction.y = 0
+  enemy.velocity.x = direction.x * SPEED
+  enemy.velocity.z = direction.z * SPEED
+  _regenerate(delta)
+
+func _regenerate(delta: float) -> void:
+  var health: float = Stats.get_stat(enemy, "health")
+  var max_health: float = Stats.get_stat(enemy, "max_health")
+  if health == null or max_health == null:
+    return
+  if health < max_health:
+    var rate: float = REGEN_FAST
+    if health >= max_health * 0.99:
+      rate = REGEN_SLOW
+    health = min(health + max_health * rate * delta, max_health)
+    Stats.set_stat(enemy, "health", health)
+    EventBus.health_changed.emit(enemy, health, max_health)

scenes/enemy/enemy_movement.gd.uid

@@ -0,0 +1 @@
+uid://tnx6rbnnngn

scenes/enemy/enemy_stats.gd

@@ -0,0 +1,12 @@
+extends BaseStats
+class_name EnemyStats
+
+@export var speed := 3.0
+@export var attack_range := 2.0
+@export var attack_cooldown := 1.5
+@export var attack_damage := 5.0
+@export var regen_fast := 0.10
+@export var regen_slow := 0.01
+@export var aggro_decay := 1.0
+@export var portal_radius := 10.0
+@export var alert_radius := 10.0

scenes/enemy/enemy_stats.gd.uid

@@ -0,0 +1 @@
+uid://bh2uuuvl30y0x

scenes/enemy/enemy_stats.tres

@@ -0,0 +1,7 @@
+[gd_resource type="Resource" script_class="EnemyStats" format=3 uid="uid://cj1shmjwf0xeo"]
+
+[ext_resource type="Script" uid="uid://bh2uuuvl30y0x" path="res://scenes/enemy/enemy_stats.gd" id="1"]
+
+[resource]
+script = ExtResource("1")
+max_shield = 50.0