[Solved] IsUnitInRegion() ??

[Geshishouhu]

Hi all. How can I detect whether a unit is in a rect? Should I use IsUnitInRegion()?

Thanks.

 

[BPower]

In a quick way I can only image two solutions

1. UnitInregion()
2. You can write that function by yourself
   --> IsUnitInRect(unit, rect)
   -------------------------------------------------------------
   --> function IsUnitInRect takes unit WhichUnit , rect r returns boolean
   --> Now you GroupEnumUnit in that rect and run a FirstOfGroup loop
   --> loop
   ....
   --> if WhichUnit == u then
   --> return true
   --> endif
   --> endloop
   .....
   --> return false
   --> endfunction
   ------------------------------------------------------------

 

[Geshishouhu]

In a quick way I can only image two solutions

1. UnitInregion()
2. You can write that function by yourself
   --> IsUnitInRect(unit, rect)
   -------------------------------------------------------------
   --> function IsUnitInRect takes unit WhichUnit , rect r returns boolean
   --> Now you GroupEnumUnit in that rect and run a FirstOfGroup loop
   --> loop
   ....
   --> if WhichUnit == u then
   --> return true
   --> endif
   --> endloop
   .....
   --> return false
   --> endfunction
   ------------------------------------------------------------

Thanks, BPower.

 

[PurgeandFire]

I would do something like this:

function IsUnitInRect takes rect whichRect, unit whichUnit returns boolean
    local region r = CreateRegion()
    local boolean inside

    call RegionAddRect(r, whichRect)
    set inside = IsUnitInRegion(r, whichUnit)
    call RemoveRegion(r)
    set r = null

    return inside
endfunction

Or with a more vJASS-esque method:

library IsUnitInRect
     
    globals
        private region r = CreateRegion()
        private boolean result
    endglobals

    function IsUnitInRect takes rect whichRect, unit whichUnit returns boolean
        call RegionAddRect(r, whichRect)
        set result = IsUnitInRegion(r, whichUnit)
        call RegionClearRect(r, whichRect)
        return result
    endfunction

endlibrary

Just because it has less complexity.

 

[Nestharus]

you have minx, miny, maxx, and maxy of the rect as well as x,y of the unit.

x >= minx and x <= maxx and y >= miny and y <= maxy

 

[Arhowk]

you have minx, miny, maxx, and maxy of the rect as well as x,y of the unit.

x >= minx and x <= maxx and y >= miny and y <= maxy

yay... common sense...

 function IsUnitInRect takes rect r, unit u returns boolean
    return GetUnitX(u) < GetRectMaxX(r) and GetUnitY(u) < GetRectMaxY(r) and GetUnitX(u) > GetRectMinX(r) and GetUnitY(u) > GetRectMinY(r)
endfunction

... and its inline safe

 

[deathismyfriend]

Only problem is regions are not always square / rectangular. But if it is for a single rect then it is good to use.

 

[Crazed_seal2]

The person asked for the detection of a unit inside a rectangle, not a region, he was simply asking if he should use IsUnitInRegion.

 

[deathismyfriend]

The person asked for the detection of a unit inside a rectangle, not a region, he was simply asking if he should use IsUnitInRegion.

I know this already.

 

[Arhowk]

I know this already.

Than why post?

 

[deathismyfriend]

Than why post?

To point out what I have said.

 

[Geshishouhu]

Thanks for all you guys, +Rep if I can.