Macro assistance

Trying to write a macro for a friend that will automatically subtract 1 ammo from his character sheet whenever he fires his bow. I have so far gotten then macro to subtract 1 from his current ammo and show his remaining, but upon 2nd use of the macro it wont subtract another arrow, only ever subtracts 1 from his maximum. Below is the code I am currently using to subtract the 1 arrow, obviously I am doing something wrong since the rangedammo1 variable is not saving, any help would be appreciated {{Ammo= [[-1 + @{selected|rangedammo1} [rangedammo1] &{tracker}]]}}

You can't without using an API script or SheetWorker.

are you sure of this? I feel as though it should be possible, I can get an input of the ammo minus 1 I just need that variable to save within the tracker

Yeah, I'm positive.

Damn I felt like i was so close too :(. How could I go about doing this for him?

The current and maximum values of @{rangedammo1} are stored within the Attributes & Abilities tab on the Character linked to the selected Token. While a macro can provide the Turn Tracker with values, the reverse is not possible (at least, without the assistance of an API Script).

Are there API scripts already made to assist with ammo tracking then? If so, can someone please provide a link with installation instructions? would be much appreciated

TheDangerBox said: Are there API scripts already made to assist with ammo tracking then? If so, can someone please provide a link with installation instructions? would be much appreciated Ammo is a popular choice. See also: <a href="https://wiki.roll20.net/Script:Ammo" rel="nofollow">https://wiki.roll20.net/Script:Ammo</a> <a href="https://github.com/Roll20/roll20-api-scripts/blob/" rel="nofollow">https://github.com/Roll20/roll20-api-scripts/blob/</a>... <a href="https://wiki.roll20.net/API:Use_Guide" rel="nofollow">https://wiki.roll20.net/API:Use_Guide</a>

Thank you both for your very quick answers

Note: API Scripts require the game to have been created by someone with a Pro subscription.

The Aaron said: Note: API Scripts require the game to have been created by someone with a Pro subscription. yeah got that already, our host IS using the highest sub gate, thanks again for the help from all of you