Ammo/Gun in 1st slot trigger help

[Impereal Gardian]

I was making a map about zombies, and i stummbled onto a problem. Im trying to make an ammo systom where the first gun in your inventory has ammo (wood, preferably) and when a zombie gets within range of a certan gun, it will auto-maticaly shoot and incoming units, but i dont know how to do triggering much.

What im trying to say is i need a trigger systom like the one in Left 4 Dead (on this site) but the map is locked and i couldnt get help with it.

If you help ill give credits in my map(s) and +rep.

Thanks.

 

[Bannar]

Units uses ammo only when player clicks certain button (like in that map L4D) - but it doesn't attack normaly yes?

 

[Impereal Gardian]

I think. what im trying to say is that when a unit comes within a certan range(depending on gun) it will automaticaly fire at them, while using an item in the first slot
(or wood,in this case).

 

[mckill2009]

it's something like this...

take note that the far seer, wand f lightning shield and a-like are only
SAMPLES, but basically this is how the idea looks like...
the unit cannot attack if there's no ammo in slot 1...

• Fire
  • Events
    • Unit - A unit Is attacked
  • Conditions
    • (Unit-type of (Attacking unit)) Equal to Far Seer
  • Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Charges remaining in (Item carried by (Attacking unit) in slot 1)) Greater than 0
        • (Item-type of (Item carried by (Attacking unit) in slot 1)) Equal to Wand of Lightning Shield
      • Then - Actions
        • Item - Set charges remaining in (Item carried by (Attacking unit) in slot 1) to ((Charges remaining in (Item carried by (Attacking unit) in slot 1)) - 1)
      • Else - Actions
        • Unit - Order (Attacking unit) to Stop

 

[Impereal Gardian]

Awsome this is exactle what ive needed big thanks Mckill2009ill +rep you ( not to mention credits in my map).