GML Coding with real time

[logan12v]

I have a game I am making and I want to use real time. I have used date_time_string and date_date_string. I have the current time stored in the variables Time and Date but I don't know were to go from here. I want to make it were I can write a code that can figure how many days have passed from when an event has happened. like when you first load the game lets say you dident play for 3 days when you come back in the game It knows you did not get on the game for 3 days now your dead and have to start over?

Any knowledge with time code would help if you know how to code something likes this it would be a lot of help if you could post it. Thank you for all the help.

 

[Cat]

First off, you're going to need to know when the game was last played. To do that, you'll need to implement saving and loading. If I recall correctly, GameMaker: Studio should have a built-in tutorial on this. Alternately, Shaun Spalding has a predictably excellent tutorial as well.

You now have both the time/date that the game was last played as well as the current time/date. From there, it's just a matter of simple subtraction to find out how much time has passed.

Good luck on your game!

 

[logan12v]

Thx

 

[Bayesian]

From there, it's just a matter of simple subtraction to find out how much time has passed.

GMS doesn't know how many days are in a month to roll over your math, he's going to need a library extension to do calendar math

 

[logan12v]

he's going to need a library extension to do calendar math

Is there a way you can show me how to do this?

 

[logan12v]

GMS doesn't know how many days are in a month to roll over your math, he's going to need a library extension to do calendar math

Why can't I use date_create_datetime when new game starts then every time game is loaded after that use date_compare_datetime to see if 3 days have passed or do these functions not work like that?

 

[NeoShade]

@Bayesian : GMS2 is actually perfectly capable of counting time like this.

date_day_span will give you the number of days between two dates, so you can use date_current_datetime when you save the game, and again when you load the game, then use date_day_span to count how many days since you last played.
There's heaps of very useful date and time functions that pretty easy to work with. https://docs.yoyogames.com/source/dadiospice/002_reference/date and time/index.html

 

[logan12v]

@Bayesian : GMS2 is actually perfectly capable of counting time like this.

date_day_span will give you the number of days between two dates, so you can use date_current_datetime when you save the game, and again when you load the game, then use date_day_span to count how many days since you last played.
There's heaps of very useful date and time functions that pretty easy to work with. https://docs.yoyogames.com/source/dadiospice/002_reference/date and time/index.html

Thx this is vary helpful I did not see that function I must have over looked