Decreasing a variable by 1...

UnknownUser

Hi, I code in GDScript. I'm probably being dumb, but I really need to know how I would go about changing a variable by and amount of number. I've tried a subtract function, but that didn't work. I literally need it to make some kind of ammo and health in my game.

TwistedTwigleg

Here's how I generally handle subtraction:

var number = 10
# method 1: writing the subtraction out as a variable assignment
number = number - 1
print (number) # will print 9
# method 2: using the -= shorthand, which does the same as method 1
# but without needing to write an assignment.
number -= 1
print (number) # will print 8