substantial work on saving and loading and hub mechanic

scripts/save_load.gd

@@ -12,8 +12,7 @@ var data_cleared
 var player_loc
 var player_rot
 var player_health
-var player_money
-var held_guns
+var player_velocity_cache
 var current_gun
 var current_ammo
 var reserve_ammo
@@ -30,27 +29,56 @@ func _ready() -> void:
 		enemies_killed = 0
 
 func save_persistent_data():
+	var level_control = get_tree().current_scene
+	var player = level_control.player
 	var file = FileAccess.open(persistent_save_path, FileAccess.WRITE)
 	print("LAST HIT PATH " + str(last_hit_path))
 	file.store_var(last_hit_path)
+	file.store_var(player.velocity)
+	file.store_var(GameGlobals.money)
+	file.store_var(GameGlobals.health)
+	file.store_var(GameGlobals.high_score)
 	file.store_var(player_deaths)
 	file.store_var(enemies_killed)
 	file.store_var(shots_fired)
+	var held_guns = save_resource_path(GameGlobals.held_guns)
+	file.store_var(held_guns)
+	file.store_var(GameGlobals.gun_ammo)
+	file.store_var(GameGlobals.ammo_reserve)
+	file.store_var(GameGlobals.current_gun_index)
 	file.store_var(data_cleared)
 	
 	file.close()
 
 func load_persistent_data():
+	var level_control = get_tree().current_scene
+	var player = level_control.player
 	if FileAccess.file_exists(persistent_save_path):
 		var file = FileAccess.open(persistent_save_path, FileAccess.READ)
 		last_hit_path = file.get_var()
 		print("CROWN PARENT : " + str(last_hit_path))
-		player_deaths = file.get_var()
+		player_velocity_cache = file.get_var()
+		GameGlobals.money = set_nulls_zero(file.get_var())
+		print("MONEY : ", GameGlobals.money)
+		GameGlobals.health = file.get_var()
+		print("HEALTH : ", GameGlobals.health)
+		GameGlobals.high_score = file.get_var()
+		print("HIGH SCORE : ",GameGlobals.high_score)
+		player_deaths = set_nulls_zero(file.get_var())
 		print("PLAYER DEATHS : " + str(player_deaths))
-		enemies_killed = file.get_var()
+		enemies_killed = set_nulls_zero(file.get_var())
 		print("ENEMIES KILLED : " + str(enemies_killed))
-		shots_fired = file.get_var()
+		shots_fired = set_nulls_zero(file.get_var())
 		print("SHOTS FIRED ",shots_fired)
+		
+		var held_guns_encoded = file.get_var()
+		GameGlobals.held_guns = load_resource_path(held_guns_encoded)
+		GameGlobals.gun_ammo = file.get_var()
+		GameGlobals.ammo_reserve = file.get_var()
+		GameGlobals.current_gun_index = file.get_var()
+		if GameGlobals.current_gun_index != null:
+			get_tree().current_scene.gun_spawn(GameGlobals.current_gun_index)
+		
 		data_cleared = file.get_var()
 		file.close()
 	else:
@@ -70,18 +98,6 @@ func save_game_data(level_name):
 	data_cleared = false
 	player_loc = player.global_position
 	player_rot = player.global_rotation
-	player_health = level_control.health
-	player_money = level_control.money
-	held_guns = save_resource_path(level_control.held_guns)
-	current_gun = level_control.current_gun_index
-	current_ammo = player.gun_ammo
-	reserve_ammo = player.ammo_reserve
-	
-	#SAVE DATA
-	file.store_var(player_health)
-	file.store_var(player_money)
-	file.store_var(held_guns)
-	file.store_var(current_gun)
 	
 	#save enemies
 	var objects = get_tree().get_nodes_in_group("persist")
@@ -111,6 +127,7 @@ func clear_persistent_data():
 	file.store_var(null)
 	file.store_var(null)
 	file.store_var(null)
+	file.store_var(null)
 	
 	print("PERSISTENT DATA CLEARED")
 	file.close()
@@ -131,11 +148,6 @@ func load_save_game_data(level_name):
 	
 		#GET DATA
 		if !data_cleared:
-			player_health = file.get_var()
-			player_money = file.get_var()
-			var held_guns_encoded = file.get_var()
-			held_guns = load_resource_path(held_guns_encoded)
-			current_gun = file.get_var()
 			var current_nodes = get_tree().get_nodes_in_group("persist")
 			for i in current_nodes:
 				if i.is_in_group("enemy"):
@@ -167,17 +179,7 @@ func load_save_game_data(level_name):
 					if i == "filename" or i == "pos_x" or i == "pos_y" or i == "pos_z":
 						continue
 					new_object.set(i,node_data[i])
-			
-			
-			#APPLY DATA
-			level_control.health = player_health
-			level_control.money = player_money
-			level_control.held_guns = held_guns
-			if player.gun:
-				player.gun.queue_free()
-			if current_gun != null:
-				level_control.gun_spawn(current_gun)
-			
+		
 		file.close()
 		await get_tree().create_timer(1).timeout #need to fix this
 		SignalBus.emit_signal("game_loaded")
@@ -191,6 +193,12 @@ func data_validate(file,variable):
 	else:
 		return null
 
+func set_nulls_zero(variable):
+	if variable == null:
+		return 0
+	else:
+		return variable
+
 func null_data_check(variable,amount): #checks if value is null, adds the number to variable
 	if variable == null:
 		variable = amount
@@ -209,11 +217,14 @@ func save_resource_path(array):
 	return final_array
 
 func load_resource_path(array):
-	var final_array = []
-	for i in array:
-		var i_loaded = load(i)
-		final_array.append(i_loaded)
-	return final_array
+	if array != null:
+		var final_array = []
+		for i in array:
+			var i_loaded = load(i)
+			final_array.append(i_loaded)
+		return final_array
+	else:
+		return []
 
 func shot_fired():
 	shots_fired += 1 #null_data_check(shots_fired, 1)