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Attention | Topic was automatically imported from the old Question2Answer platform. |
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Asked By | Rhynn |
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Old Version | Published before Godot 3 was released. |
For my first project, I’ve started making a Flappy Bird-type game, following the excellent tutorials by Edward (AngegaStudios on Youtube). I’ve worked ahead a little bit though because I’m eager to get this project finished, and I’ve got everything working as intended now… except saving the best score in a savegame, so it’s still there after closing the game.
The two relevant files:
First, game.gd, which is a global script:
#script: game
extends Node
const GROUP_PIPES = "pipes"
const GROUP_GROUNDS = "grounds"
const GROUP_BIRDS = "birds"
var score_best = 0 setget _set_score_best
var score_current = 0 setget _set_score_current
var savegame = File.new() #file
var save_path = "user://savegame.save" #place of the file
var save_data = {"highscore": 0} #variable to store data. Should it be 0, or should it be score_best?
signal score_best_changed
signal score_current_changed
func _ready():
if not savegame.file_exists(save_path): #if the save game doesn't exist...
create_save() #...create it! Function down below...
read_savegame() #load (read) the savegame when the game starts
stage_manager.connect("stage_changed", self, "_on_stage_changed")
pass
func create_save(): #The function to create the savegame
savegame.open(save_path, File.WRITE) #open file to write
savegame.store_var(save_data) #store the content of the save_data variable
savegame.close() #close the savegame
func save(score_best): #The function to save the game; I want it to save the score_best variable contents
save_data["highscore"] = score_best #data to save
savegame.open(save_path, File.WRITE) #open file to write
savegame.store_var(save_data) #store the data
savegame.close() #close the file
func read_savegame(): #The function to load the game
savegame.open(save_path, File.READ) #open the file
save_data = savegame.get_var() #get the value
savegame.close() #close the file
return save_data["highscore"] #return the value
func _on_stage_changed():
score_current = 0
pass
func _set_score_best(new_value):
if new_value > score_best:
score_best = new_value
emit_signal("score_best_changed")
pass
func _set_score_current(new_value):
score_current = new_value
emit_signal("score_current_changed")
pass
Next, a snippet from hbox_score_best, where I try to save the game whenever the best score has changed:
func _on_score_best_changed(): #when the best score has changed...
set_number(game.score_best) #...first change the score_best variable in game.gd...
game.save(game.score_best) #...and then save the game
I’m honestly not sure if that last line is even correct. I followed this post which is the only way I’ve found to save that doesn’t crash my game… as long as I pass an argument in that last function call, which I just can’t really figure out why. If I don’t pass an argument, I receive the following error:
“Invalid call to function ‘save’ in base ‘Node (game.gd)’. Expected 1 arguments.”
And if I do pass an argument, the game runs fine, but it doesn’t get saved. At all.
So… yeah. I need a bit of help here 
I’m so close to finishing my project, but this has been frustrating me for a while now!