Detecting unit standing in water, either shallow or deep

[gameshow]

I'm trying to use an ability on a hero i only want activateable when in water. How can I detect that? I've never written any JASS before, but i have done plenty of c/c++/various scripting languages. I saw another forum post where they threw around the term "pathability testing". That ring a bell?

 

[Azlier]

EDIT: Rewritten because I read what you wrote in another thread.

if not IsTerrainPathable(GetUnitX(Unit),GetUnitY(Unit),PATHING_TYPE_FLOATABILITY) and not IsTerrainPathable(x,y,PATHING_TYPE_WALKABILITY) then

That should hopefully return shallow water.

if not IsTerrainPathable(GetUnitX(Unit),GetUnitY(Unit),PATHING_TYPE_FLOATABILITY) and IsTerrainPathable(x,y,PATHING_TYPE_WALKABILITY) then

And this deep. I hope.

function Rofl takes nothing returns nothing
    local unit u = GetTriggerUnit()
    local real x = GetUnitX(u)
    local real y = GetUnitY(u)
    //Shallow water.
    if not IsTerrainPathable(x,y,PATHING_TYPE_FLOATABILITY) and not IsTerrainPathable(x,y,PATHING_TYPE_WALKABILITY) then
        //Actions
    elseif not IsTerrainPathable(x,y,PATHING_TYPE_FLOATABILITY) and IsTerrainPathable(x,y,PATHING_TYPE_WALKABILITY) then
        //Actions
    endif
    set u = null
endfunction

This is a hopefully functional function with it at work.

 

[gameshow]

Thanks for this. I have it working fine now.