Added demon enemy prototype

- Created Demon enemy scene with animations
- Implemented demon AI, detection, pursuit, attack, and damage systems
- Adjusted enemy collision layers to allow flying enemies to overlap the player
- Added and tested combat encounters in Demon Race and Graveyard memory levels

Scripts/demon.gd

@@ -0,0 +1,129 @@
+extends CharacterBody2D
+
+@export var speed := 90.0
+@export var max_health := 3
+@export var attack_range := 35.0
+@export var stop_distance := 25.0
+@onready var sprite: AnimatedSprite2D = $AnimatedSprite2D
+@onready var detection_area: Area2D = $DetectionArea
+@onready var attack_hitbox: Area2D = $AttackHitbox
+
+var health := 3
+var player: Player = null
+var is_dead := false
+var is_hurt := false
+var is_attacking := false
+var attack_cooldown := false
+
+func _ready() -> void:
+	health = max_health
+	attack_hitbox.monitoring = false
+	sprite.play("idle")
+
+	detection_area.body_entered.connect(_on_detection_body_entered)
+	detection_area.body_exited.connect(_on_detection_body_exited)
+	sprite.animation_finished.connect(_on_animation_finished)
+
+func _physics_process(_delta: float) -> void:
+	if is_dead:
+		return
+
+	if is_hurt or is_attacking:
+		velocity = Vector2.ZERO
+		move_and_slide()
+		return
+
+	if player:
+		var x_distance := player.global_position.x - global_position.x
+
+		if abs(x_distance) > attack_range:
+			velocity.x = sign(x_distance) * speed
+			velocity.y = 0
+			sprite.play("flying")
+
+			if x_distance < 0:
+				sprite.flip_h = false
+			else:
+				sprite.flip_h = true
+		else:
+			velocity = Vector2.ZERO
+			attack()
+	else:
+		velocity = Vector2.ZERO
+		sprite.play("idle")
+
+	move_and_slide()
+
+func attack() -> void:
+	if is_attacking or attack_cooldown:
+		return
+
+	is_attacking = true
+	attack_cooldown = true
+	velocity = Vector2.ZERO
+	sprite.play("attack")
+
+	await get_tree().create_timer(0.2).timeout
+	do_attack_damage()
+
+func do_attack_damage() -> void:
+	print("Demon checking attack hit")
+
+	attack_hitbox.monitoring = true
+	await get_tree().physics_frame
+	await get_tree().physics_frame
+
+	var bodies = attack_hitbox.get_overlapping_bodies()
+	print("Demon bodies found: ", bodies.size())
+
+	for body in bodies:
+		if body is Player:
+			print("DEMON HIT PLAYER")
+			body.playerTakesDamage(1)
+
+	attack_hitbox.monitoring = false
+
+func take_damage(amount: int = 1) -> void:
+	if is_dead:
+		return
+
+	health -= amount
+	print("Demon health:", health)
+
+	if health <= 0:
+		die()
+	else:
+		is_hurt = true
+		velocity = Vector2.ZERO
+		sprite.play("hurt")
+
+func die() -> void:
+	if is_dead:
+		return
+
+	is_dead = true
+	velocity = Vector2.ZERO
+	sprite.play("death")
+	print("Demon died")
+
+func _on_detection_body_entered(body: Node) -> void:
+	if body is Player:
+		player = body
+		print("Demon detected player")
+
+func _on_detection_body_exited(body: Node) -> void:
+	if body == player:
+		player = null
+		print("Demon lost player")
+
+func _on_animation_finished() -> void:
+	if sprite.animation == "hurt":
+		is_hurt = false
+
+	if sprite.animation == "attack":
+		is_attacking = false
+		await get_tree().create_timer(1.0).timeout
+		attack_cooldown = false
+
+	if sprite.animation == "death":
+		queue_free()

Scripts/demon.gd.uid

@@ -0,0 +1 @@
+uid://cukuvefvrcr3f