added blocking doors to paths.

src/scripts/player.gd

@@ -107,6 +107,9 @@ var coins: int:
 		if character_stats:
 			character_stats.coin = value
 
+# Key inventory
+var keys: int = 0  # Number of keys the player has
+
 # Animation system
 enum Direction {
 	DOWN = 0,
@@ -2065,7 +2068,10 @@ func take_damage(amount: float, attacker_position: Vector2):
 		tween.tween_property(sprite_body, "modulate", Color.RED, 0.1)
 		tween.tween_property(sprite_body, "modulate", Color.WHITE, 0.1)
 	
-	# Sync damage visual effects to other clients
+	# Show damage number (red, using dmg_numbers.png font)
+	_show_damage_number(amount, attacker_position)
+	
+	# Sync damage visual effects to other clients (including damage numbers)
 	if multiplayer.has_multiplayer_peer() and can_send_rpcs and is_inside_tree():
 		_sync_damage.rpc(amount, attacker_position)
 	
@@ -2351,7 +2357,59 @@ func heal(amount: float):
 		current_health = min(current_health + amount, max_health)
 		print(name, " healed for ", amount, " HP! Health: ", current_health, "/", max_health)
 
+func add_key(amount: int = 1):
+	keys += amount
+	print(name, " picked up ", amount, " key(s)! Total keys: ", keys)
+
+func has_key() -> bool:
+	return keys > 0
+
+func use_key():
+	if keys > 0:
+		keys -= 1
+		print(name, " used a key! Remaining keys: ", keys)
+		return true
+	return false
+
 @rpc("authority", "reliable")
+func _show_damage_number(amount: float, from_position: Vector2):
+	# Show damage number (red, using dmg_numbers.png font) above player
+	# Only show if damage > 0
+	if amount <= 0:
+		return
+	
+	var damage_number_scene = preload("res://scenes/damage_number.tscn")
+	if not damage_number_scene:
+		return
+	
+	var damage_label = damage_number_scene.instantiate()
+	if not damage_label:
+		return
+	
+	# Set damage text and red color
+	damage_label.label = str(int(amount))
+	damage_label.color = Color.RED
+	
+	# Calculate direction from attacker (slight upward variation)
+	var direction_from_attacker = (global_position - from_position).normalized()
+	# Add slight upward bias
+	direction_from_attacker = direction_from_attacker.lerp(Vector2(0, -1), 0.5).normalized()
+	damage_label.direction = direction_from_attacker
+	
+	# Position above player's head
+	var game_world = get_tree().get_first_node_in_group("game_world")
+	if game_world:
+		var entities_node = game_world.get_node_or_null("Entities")
+		if entities_node:
+			entities_node.add_child(damage_label)
+			damage_label.global_position = global_position + Vector2(0, -16)  # Above player head
+		else:
+			get_tree().current_scene.add_child(damage_label)
+			damage_label.global_position = global_position + Vector2(0, -16)
+	else:
+		get_tree().current_scene.add_child(damage_label)
+		damage_label.global_position = global_position + Vector2(0, -16)
+
 func _sync_damage(_amount: float, attacker_position: Vector2):
 	# This RPC only syncs visual effects, not damage application
 	# (damage is already applied via rpc_take_damage)