Add HUD component and update player state management for lives

scripts/game_manager.gd

@@ -2,17 +2,38 @@ class_name GM
 extends Node
 
 var player_state = {
-	"coins": 0,
-}
+					   "coins": 0,
+					   "lives": 3,
+				   }
+
 
 func add_coins(amount: int) -> void:
 	player_state["coins"] += amount
 
+
 func set_coins(amount: int) -> void:
 	player_state["coins"] = amount
 
+
 func get_coins() -> int:
 	return player_state["coins"]
 
+
 func remove_coins(amount: int) -> void:
-	player_state["coins"] -= amount
+	player_state["coins"] -= amount
+
+
+func add_lives(amount: int) -> void:
+	player_state["lives"] += amount
+
+
+func remove_lives(amount: int) -> void:
+	player_state["lives"] -= amount
+
+
+func set_lives(amount: int) -> void:
+	player_state["lives"] = amount
+
+
+func get_lives() -> int:
+	return player_state["lives"]