Pick units in a line?

[Faestus]

Hi. How can I pick units in a line between two points?

Is there a spell/trigger? Also if possible, the line should have a thickness (like 60 units)

 

[Chaosy]

Basicly cone detection?

 

[Xerxes]

Something like this:

• Line Detect
• Events
• Conditions
• Actions
  • Set Point[1] = Position of Unit
  • Set Point[2] = Target Point
  • For Each Integer A from 1 to 12, do (Actions)
    • Loop
      • Set TempReal = TempReal + 200
      • Unit Group - Pick Every unit in Point offset by TempReal towards Angle from Point[1] to Point[2] and do Actions
        • Loop

?

 

[Spartipilo]

There's a JASS Snippet or Resource for picking units in lines and custom forms. I know there is. I'm really sure. I saw it once several months ago. Look around using the search function though the forums and see if you catch something.

This is not the one i mention before but may work.

https://www.hiveworkshop.com/forums/triggers-scripts-269/unit-group-selecting-line-121329/

 

[Faestus]

Won't it lag if I do the loops every .03 seconds?

 

[Xerxes]

It depends on how it is used.

 

[Spartipilo]

You mean picking units in a line every 0.03 seconds? Yes, it may be a bit heavy if you do it this way.

 

[Rui]

Pick every unit works by picking in a circular area of radius equal to the distance you select, if I'm not wrong. Sure you could do that, but it wouldn't really be a line. I think rects (GUI “regions”) is what you're looking for — they're quadrangular.

P.S. — For more complex forms, you should probably search for a snippet.

 

[Xerxes]

I think JASS and vJASS are really more efficient than GUI, and has a hell lot less boundaries, so I agree with Rui; here is the JASS section of the Hive: https://www.hiveworkshop.com/forums/jass-functions-413/

Just in case.

 

[Binsu]

Well, how about make a region that has a shape of line and has this thickness.... Worth a try but has some flaws maybe and worst might not work.

 

[Xerxes]

He cannot accurately measure if a region can have a 60-units width lol.

 

[Nichilus]

I've had similar problem - I needed to pick units in rectangle.
rulerofiron99 suggested to try this system: http://www.wc3c.net/showthread.php?t=96543

You could try it as well? Your line can be basically a rectangle with really small sizes to make it look like a line

 

[Binsu]

He cannot accurately measure if a region can have a 60-units width lol.

Yeah I thought so too, it will be hard to measure a line 60 units thickness.... I guess I will go with all of your suggestion using vJASS! It is more better.

 

[Xerxes]

The only problem with coder beginners is that they find some codes hard to import. I hope he manages.

 

[Faestus]

Well... I was able to make it check once every 2 triggers.

• If (All Conditions are True) then do (Then Actions) else do (Else Actions)
  • If - Conditions
    • Check[M_Int] Equal to True
  • Then - Actions
    • Do the Big Loop
    • Set Check[M_Int] = False
  • Else - Actions
    • Set Check[M_Int] = True

Hope it doesn't lag when multiple spells of this are cast (at once)

Also, regions won't do because they don't work well on diagonals.

 

[Xerxes]

Shouldn't you make the spell MUI first?

 

[Zwiebelchen]

Coordinate Snippets:
https://www.hiveworkshop.com/forums/1838224-post336.html

Check out IsPointInRectangle!

 

[WaterKnight]

Well, how about make a region that has a shape of line and has this thickness.... Worth a try but has some flaws maybe and worst might not work.

Approximating a region might make sense if you use the same line over and over again because there is the function

native IsUnitInRegion (region whichRegion, unit whichUnit) returns boolean

so you do not need to get the unit's coordinates nor do calculations.

 

[Maker]

Here's a spell I coded: https://www.hiveworkshop.com/forums/spells-569/static-fence-v-01-a-192296/

It uses that kind of system. It should work but I'm not 100% sure. The spell could use some code improvements, but the rect function is there.