Knockback detects pathing?

[Prorox]

Hello I wanted to ask how to trigger a knockback so it detects pathingblockers/ trees/ pathed objects and then stops.
I need it for an arena fight.. right now enemies can just be knockbacked trough the whole walls ._.
Isn't there a function detecting pathing?

 

[Mr_Bean]

Do you use GUI or JASS? If JASS, check this library:
TerrainPathability by Rising Dusk

 

[Prorox]

Using GUI ^^
Thanks anyway

 

[Fingolfin]

Well, there is a jass function which is REALLY easy to use which can detect if a point is unpathable. The library by Rising Dusk is extended to also check if there is a unit or other object currently occupying the space of the point.

There is no sin in not using it and instead just going with the jass function in the actions part of the trigger:

• Custom script: if IsTerrainPathable(udg_x, udg_y, PATHING_TYPE_WALKABILITY) then

Put your actions inside, and then:

• Custom script: endif

This assumes you have two global real variables named "x" and y" which you need to set to your point beforehand. If you want to use the library, which most would recommend, just create a trigger, convert it to custom text and delete everything in it, then paste the code in the link that Mr_Bean posted. Then you use the same custom script except with "IsTerrainWalkable(udg_x, udg_y)".

 

[Lender]

the GUI function Unit - move unit instantly is minds pathability. I assume in game its like the unit starts vigling a bit when hits something then suddenly "jumps" over it.

you need to refresh the actual position of the unit in every period when you try to move it
if you do it well (and there are no such big distances between periods) it should slide along walls and trees and such.

but the clearest way is still to trigger the pathing check for yourself or use a premade one like the one mentioned above.

 

[PurgeandFire]

Since you want to detect pathing blockers and trees, Fingolfin's method won't suffice.

As Lender said, GUI's move unit detects pathability, but it issues a stop order (as such it will interrupt animations and orders). If that is okay, then use that to move the unit.

Otherwise, here is a GUI-friendly version of Rising Dusk's system:
http://www.hiveworkshop.com/forums/spells-569/check-walkability-239115/

Just check the demo triggers for an example on its usage. In your knockback triggers, you can simply check if the point is pathable before moving the unit. If it isn't pathable, you can simply end the knockback effect.