How do you make a terrain "unwalkable"?

[Hardtime]

How do you make a terrain unwalkable, like a large terrain of rock. I know you can always put stuff like pathing blockers, but it's a waste of doodads.

 

[Hashjie]

If you have JassNewGenPack you can specify which tile should have which pathing, such as Buildable, Walkable, Flyable.

Take a look here for JassNewGenPack:
http://www.hiveworkshop.com/forums/...456/how-download-install-confige-jngp-160547/

Once installed go to:
UMSWE->Customize Tile Pathability

It should pop up a window with all the tiles. Select the one you want to change the pathability of, save your map close JNGP and re-open it.

If you don't want to use JassNewGenPack then you can create your own pathing map. A tutorial on how to do that can be found here:
http://world-editor-tutorials.thehelper.net/pathmaps.php

 

[Hardtime]

thank you!

 

[Hardtime]

do you know a way with just using Triggers?

 

[Malthe]

Cant you just make 1 big region in the area where you dont want them to walk, and then go to triggers and make a trigger that removes unit, and then makes a new one at the same spot?

 

[Hashjie]

Why would you want to do that if changing the pathability of a tile can be way and way easier?

I know It's possible to make regions which teleports the unit back to the edge of the region, but it's way more work then you think.
I've created such a system myself, but changing the path of a tile is a way easier solution which works more fluently.

 

[Hardtime]

So I can't do it with just triggers?

 

[Hashjie]

Check every ... the terrain type at the position of a unit, then order it to stop moving.
Or you could store the previous position of the unit and move it instantly to the previous position if his current position is on top of a specified terrain type.

• (Terrain type at (Position of(Your_Unit) Equal to Lordaeron Summer - Dirt

You can also use regions without specified terrain but this is a bit more advanced.
You can then for example create a region and when the unit leaves the region on 2 sides of the region make it teleport back inside the region on the previous position of the unit.
This would need a custom region system with any geomatrical shape.
I can give one to you in Jass, but I don't know if you'll find much use for it.

 

[Hardtime]

What type is that in Trigger Editor? Environments?

 

[Zeatherann]

You people are sometimes too smart to see the solution...

• Change Pathablility
  • Events
  • Conditions
  • Actions
    • Environment - Set terrain pathing at Location of type Walkability to Off
    • -------- MAkes terrain at 'Location' unwalkable --------

 

[defskull]

You people are sometimes too smart to see the solution...

• Change Pathablility
  • Events
  • Conditions
  • Actions
    • Environment - Set terrain pathing at Location of type Walkability to Off
    • -------- MAkes terrain at 'Location' unwalkable --------

That will only create a pathing blocker-like at the exact Location/Point (which is ridiculously small point to cover) to not be able to walk, not the entire region/terrain.

We are called as "smart" for a reason.

Somehow, we must convert it to coordinates to cover a larger area such as Regions created via pre-set.

 

[Zeatherann]

Use a loop, but how 'small'?

 

[defskull]

The size of a unit, I tested it with a Peasant (zero collision size, flying unit) is put right at the center of that location.

And I tried to move across it, I seem to be moving around the Peasant to get across it.

 

[Zeatherann]

I mean how big is the 'square' of pathing when you change it?

 

[Tirlititi]

I guess it's 32x32. I used to know that...
By the way, if you put 0 collision in the object editor, the unit will still have a 8 radius collision. It's improperly handled by the editor so you may put a bunch of preplaced units in a very small area but they won't be created at the same position in-game.

 

[defskull]

the unit will still have a 8 radius collision

Flying units does not takes up space (with 0 collision size (Object Editor)), even the model is Peasant.

First, I tried creating the unit exactly at the spot (where the Environment action is done) and try to move across it, but my unit instead move around the Peasant (I assume it could be blocked by my Peasant instead the trigger action).

And the next round, I order my Peasant to move somewhere else and I tried to move across it, and I succeeded this time.

 

[Tirlititi]

Well, yes, I guess the flying units have that "group separation" thing and collision isn't the same than for ground units.

I confirm, it's a 32x32 square by trigger.

 

[Zeatherann]

It's 1/16 the area of a tile of terrain, which is 128x128, so 32x32 is the correct size. Also: if you want to know if it works, make it unbuildable first and try building a building there, you can see the little red square nicely in the otherwise-green placement square.

 

[Arisato]

So I can't do it with just triggers?

No,sorry mate.

 

[Zeatherann]

YES YOU CAN!

just requires set up.

loop over each tile in a region over your rock area, if the terrain type at that point is rock then loop over each 16th point in that tile area and make it unwalkable. I'll post a trigger in GUI and Jass later on.

 

[Hashjie]

Sorry for this late respond, but I'm going to put this here as measurement refference for those who would like to know

grid measurement

In other words, if a peasant where to have 128 attack range and 0 collision, and you would let 2 peasants fight each other, they would stand roughly 4 smallest grid squares away from each other in order to hit each other.

Why did I say roughly 4 small grid squares and not exactly?
Remember what Tirlititi said:

By the way, if you put 0 collision in the object editor, the unit will still have a 8 radius collision. It's improperly handled by the editor so you may put a bunch of preplaced units in a very small area but they won't be created at the same position in-game.

If they would for example have something like 16 collision, then the distance between the two in order to hit each other would be:

128 - 32 (2 times 16 collision since they both have this collision) = 96
Which is 3 squares away...

To test it you could do something as simple as:

• Simple Test
  • Events
    • Time - Every 0.10 seconds of game time
  • Conditions
  • Actions
    • Game - Display to (All players) the text: (String((Distance between (Position of Peasant 0000 <gen>) and (Position of Peasant 0001 <gen>))))

Simply place 2 enemy peasants and change the collision and attack range of the peasant inside the object editor.


also, be reminded that 32x32 is the smallest grid. This can not be reduced to something smaller.

Pathing can not be reduced to smaller than 32x32.
(Each pixel in a TGA file represents 32 grid units in the editor).
More info on custom pathing maps can be found here: Custom Pathing Maps by SD_Ryoko


EDIT: made a few adjustments due to mistakes (it's way to late over here >.>), all should be good now...

 

[Arisato]

So it's actually possible, good thing i read this thread

 

[Zeatherann]

function PaintPathing takes real mX,real mY,real MX,real MY,pathingtype P,boolean T returns nothing
    local real X
    local real Y
    local integer I=0
    set mX=R2I(mX/32)
    set mY=R2I(mY/32)
    set MX=R2I(MX/32)
    set MY=R2I(MY/32)
    if mX==MX or mY==MY then
        set P=null
        return
    endif
    set X=mX
    loop
        exitwhen X>MX
        set Y=mY
        loop
            exitwhen Y>MY
            call SetTerrainPathable(X,Y,P,T)
            set I=I+1
            if I>=2000then
                set I=0
                call TriggerSleepAction(0.01)
            endif
            set Y=Y+32
        endloop
        set X=X+32
    endloop
    set P=null
endfunction

function PaintPathingRect takes rect R,pathingtype P,boolean T returns nothing
    call PaintPathing(GetRectMinX(R),GetRectMinY(R),GetRectMaxX(R),GetRectMaxY(R),P,T)
    set R=null
    set P=null
endfunction

Here ya go, a JASS function to use that will paint pathing types.
Includes a wrapper function to use GUI regions (rects)

Copy and Paste this into the custom map script (has the map icon in the trigger editor and is above your triggers.).

to call simply use:

• Set myRect = SomeRegion
• Custom script: call PaintPathing(udg_myRect,PATHING_TYPE_WALKABILITY,false)

That'll make it unwalkable, or should, i might have my true/false backwards.

 

[Lordkoon]

Take a look here for JassNewGenPack:
UMSWE->Customize Tile Pathability

It should pop up a window with all the tiles. Select the one you want to change the pathability of, save your map close JNGP and re-open it.

Is this way not working? I tried it and heroes still walked over the tiles.

 

[Zeatherann]

Lordkoon; I personally would not recommend using Jass New Gen Pack (JNGP) or any currently known third-party world editor. None of them are truly compatible with the current editor and some are known to cause bugs.

 

[Hashjie]

Is this way not working? I tried it and heroes still walked over the tiles.

It should work, are you sure Custom Tile Pathability is checked under UMSWE?
Also remember that you can press p inside the editor to see if the change made any effect or not.

 

[Chaosy]

this simple trigger would fix it.

• Untitled Trigger 001
  • Events
    • Unit - A unit Is issued an order targeting a point
  • Conditions
    • (Terrain type at (Target point of issued order)) Equal to Barrens - Rock
  • Actions
    • Unit - Order (Triggering unit) to Stop

 

[Dr Super Good]

You could also paint unwalkable pathing over that area of the map on the base pathing map. Too bad WorldEdit lacks support for this feature although WarCraft III map structure does allow it.

 

[Zeatherann]

Just use the JASS trigger I provided, it'll paint the pathing and you only need to do it once.

 

[Dr Super Good]

It is still slower than just painting it on the base pathing map.

 

[Hashjie]

Too bad WorldEdit lacks support for this feature although WarCraft III map structure does allow it.

Do you perhaps know how to alter war3map.wpm to your advantage?
Would I need to alter the actual bytes?
If so, how can I see those bytes?
Simply by opening it in a notepad doesn't really work :/
Excuse me for my ignorance on this matter.

It would be quite nice to know how to paint your own pathing for an entire map.
I'm really interested in this.

EDIT: oops, totally forgot about hex editors xD
Nevermind this question, already figured it out thnx

EDIT2: Also I just realised that you have mentioned this to me before Dr Super Good.


For those interested in altering the pathing map file of your warcraft 3 map, I suggest you get yourself an MPQ- and a hex editor and then take a look at one of these tutorials:
http://www.thehelper.net/threads/guide-explanation-of-w3m-and-w3x-files.35292/
http://www.wc3c.net/showthread.php?t=123

 

[Tirlititi]

The problem is that a .wpm editor should be implanted in the real WE terrain editor or at least display the map's terrain and doodads.

Also, Zeatherann, your function doesn't work :
- if I>=2000then -> if I>=2000 then,
- The 4 first lines of the function must be removed,
- The use of a TriggerSleepAction is really bad for several reasons (use a TriggerExecute/Evaluate or an ExecuteFunc instead),
- No need to null function arguments and no need to null pathingtypes.

 

[Hashjie]

The problem is that a .wpm editor should be implanted in the real WE terrain editor or at least display the map's terrain and doodads.

You do realise that there is no .wpm editor at this moment? This needs to be created in its entirety if it even were to ever be implemented into the WE.

Right now the only possibility of altering the .wpm file (which can be extracted from the maps MPQ archive) is to use a hex editor.

By using a hex editor you can alter the hexadecimal values of the data inside the .wpm file, changing it to the appropriate flags in such a way that you can create pathing for your entire map by going through the file tile by tile (byte by byte).

Data:
Each byte of the data part is a part of a tileset exactly like for the TGA.
Data size: (map_height*4)*(map_with*4) bytes
Flags table:
0x01: 0 (unused)
0x02: 1=no walk, 0=walk ok
0x04: 1=no fly, 0=fly ok
0x08: 1=no build, 0=build ok
0x10: 0 (unused)
0x20: 1=blight, 0=normal
0x40: 1=no water, 0=water
0x80: 1=unknown, 0=normal

(Correct me if I missunderstood the concept or am being ignorant)

If someone wants to create an entire editor that reads and writes the bytes of this file's extension in a scripting language like C then be my guest.
I think lots of people would appreciate it. (Personally I don't really have the time to do so)
It would be great to have some kind of Graphical User Interface in order to "paint" pathing onto the map instead of having to alter it manually through hexadecimal values.
Whether it be a standalone application or not, it would increase the workflow of lots of users out here (for example not having to deal with pathing blockers anymore).

 

[Tirlititi]

I think you misunderstood me...

Making a program that reads and edits .wpm files is already a little to work but it would be useless if you can only see the pathing without any cliff, ground texture or doodad displayed.

That's why you need either to include it in the WE or to make the program additionally reads and displays .doo and .w3e files (at least).

 

[Hashjie]

I think you misunderstood me...

Making a program that reads and edits .wpm files is already a little to work but it would be useless if you can only see the pathing without any cliff, ground texture or doodad displayed.

That's why you need either to include it in the WE or to make the program additionally reads and displays .doo and .w3e files (at least).

Ah yes, it would be rather hard to create pathing for your map if you don't know the placement of your cliffs and doodads. That's a good point...

You're right, if one where to create this it would need to be abled to read .doo and .w3e files too.

 

[SA Dashie]

Is there anyway to actually import a .tga image into WE to actualy replace the whole pathing of the map(ofcourse I am asking for a possible file path name when imported). If I think so right you could actually import this kind of texture into WE and add it to a doodad to do this anyway.
Correct me if i am wrong.

 

[Dr Super Good]

Is there anyway to actually import a .tga image into WE to actualy replace the whole pathing of the map(ofcourse I am asking for a possible file path name when imported). If I think so right you could actually import this kind of texture into WE and add it to a doodad to do this anyway.
Correct me if i am wrong.

Only in the WarCraft III beta could you do that. Although the final pathing map is basicly a bitmap it is no longer a TGA formated bitmap (custom header). A simple converter could be made though so it can be edited as an image.