How do I set a maximum variable value?

I am making an ammo system but when I put it to add 30 to the count it just keeps adding it... so how do I make my ammo variable have a value limit?

ammo=min(ammo+how much you add, maximum amount you want it to be )

ammo=min(ammo+30,200)

Would The clamp expression work for you?

clamp(x, lower, upper)

Return lower if x is less than lower, upper if x is greater than upper, else return x.

https://www.scirra.com/manual/126/system-expressions

How do I make these? And btw, I have a global variable for the ammo.

These are expressions, you use them inside your event and/or actions..

so instead of:

system set ammo: ammo+30

or

system add to ammo: 30

you use

system set ammo: min(ammo+30,200)

or

system set ammo: clamp(ammo+30, 0, 200)

you could also use your normal way and add an every tick event setting ammo to clamp(ammo, 0, 200), that way it can never get below 0 or above 200..

use either expression in an action after the triggering condition ;

player collides with ammo --->ammo=min(ammo+30,200)...............or........ammo=clamp(ammo+30,0,200)

clamp takes an additional parameter

LittleStain almost at the same time

Looked at your reply and I realized I just had to put it to set value instead of add.

Thanks

Now that I created a reserve ammo system, how do I do the same thing but so that it removes only 30 from the value?

change the plus to a minus?

clamp(ammo-30, 0, 200), should work fine..

Yeah but the problem with the clamp and every other expression is that it keeps on substracting.

Well it shouldn't, because the 0 in the clamp expression I gave you is the minimum value..

But you might mean something along these lines:

Shoot Reload Max-Min