How to prevent a unit from going over map boundaries?

[louie999]

So I'm making this unit move using SetUnitX/Y but whenever the unit goes out of the map boundaries(the black area) then the game suddenly crashes, so how can I *detect* if the unit is going out of map boundaries and teleport the unit away from it ?

 

[IcemanBo]

You can check if if x/y is still in map.
In JASS for example you save max/min values of x/y of map bounds,
and then make comparisons if your x/y are in between.

 

[Dr Super Good]

Be aware that flying units directly at the border of the map have been known to crash even though they are still in map bounds. As such you really need a few tiles boundary around your map on top of the x/y inside map bounds.

In JASS for example you save max/min values of x/y of map bounds,
and then make comparisons if your x/y are in between.

Or why not test if they are inside the playable map area rect? Should work with most maps.

 

[PurgeandFire]

Download JassNewGenPack from our tools section, and copy and paste this library into a new trigger (BoundSentinel):
http://www.wc3c.net/showthread.php?t=102576

It'll ensure that units will stay within the map boundaries. It is much more convenient than having to check map bounds every time you use SetUnitX/SetUnitY.

 

[louie999]

Sorry for the late reply xD,
I think I'll try to do it with GUI first, but if I can't then I'll try and use that vJass code PurgeandFire posted Thx guys