Written in GDScript :: First function tracks movement direction as a vector and entity facing direction of follower entities that trail behind the player for classic JRPG like caching of last-player-positions within an array for utilizing within the follower entities for movement : The second function is using this array and providing a unique e…

check_trail_cache

func check_trail_cache():
	if player_last_pos != player.position:
		position = player_trail[0][0]
		move_dir = player_trail[0][1]
	
		if position_index < frame_offset:
			position_index += 1
		else:
			position_index = 0
		
		if player_trail.size() > frame_offset:
			player_trail.pop_front()
      
		player_trail.push_back([player.position, player.move_dir])
		
		last_pos = position
	
	else:
		move_dir = Vector2(0,0)

	player_last_pos = player.position

follower_check_trail

func follower_check_trail():
	if player_last_pos != get_tree().get_nodes_in_group("party")[0].leader.position:
		
		position = player_trail[0+position_offset][0]
		move_dir = player_trail[0+position_offset][1]
		
		player_trail.push_front([get_tree().get_nodes_in_group("party")[0].leader.position, get_tree().get_nodes_in_group("party")[0].leader.move_dir])
		
	else:
		move_dir = Vector2(0,0)
	
	player_last_pos = get_tree().get_nodes_in_group("party")[0].leader.position