Get closest tree

[The_Silent]

Essentially, I want a certain type of unit to turn invisible when standing still close to a tree.

I have this:
[Snippet] GetClosestWidget

And I have Bribe's IsUnitMoving system.

So how does i make the linked jass return the distance to the closest tree? Or if there is a tree within 256 (arbitrary number) distance?

Thanks in advance

 

[Pyrogasm]

You need to give it a filterfunction, which you can put in your custom script section to easily use:

function YourTreeFilter takes nothing returns boolean
    return GetDestructableTypeId(GetEnumDestructable()) == 'RAWC' //where RAWC is the rawcode of the trees in your map
endfunction

//or this if multiple tree types:
function YourTreeFilter takes nothing returns boolean
    local integer d = GetDestructableTypeId(GetEnumDestructable())
    return d == 'RAWC' or d == 'raw2' or ...
endfunction

//call it like this
set udg_DESTRUCTIBLE_VAR = GetClosestDestructable(GetUnitX(udg_UNIT_VAR), GetUnitY(udg_UNIT_VAR), Filter(function YourTreeFilter))
//then check if it's == no destructible or not

Honestly though you don't actually need the closest, you just need to know if there are any within a small radius, which is a much less computationally taxing problem to solve. You can even do it with GUI:

• Set TempPoint = (Position of UNIT_VAR)
• Set COUNT = 0
• Destructible - Pick every destructible within 256.00 of TempPoint and do (Actions)
  • Loop - Actions
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Destructible-type of (Picked destructible)) Equal to YOUR_TREE_TYPE
      • Then - Actions
        • Set COUNT = (COUNT + 1)
      • Else - Actions
  • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
    • If - Conditions
      • COUNT greater than 0
    • Then - Actions
      • -------- it was near a tree, check IsUnitMoving here --------
    • Else - Actions

 

[The_Silent]

Works, thanks!