In WarCraft III, 'black barriers' is another definition for 'invisible wall'. Usually in the campaign, AI can go through them but you can't. The appearance is simple, basically it shows the place in a dark shadow. What would you do if you had the control of these barriers that prevents any unit to go through? As far as we should know, StarCraft II's barriers won't be darkened. Hopefully.

You can probably change the color - and it's simply something that 100% prevents units from going through, except (maybe - not sure) for blink. It's used to isolate places. For example, if two lanes are isolated and you don't want flying units to go from one to another, you put those.

Wait so is it like fog of war or something, only its not revealed and keeps you out? If so that would be kinda cool if you could create/remove it.

Horror maps. I've always wanted to make one.

Those barriers were designed for the purposes of cutsceens (The black tiles where no one can walk, fly, whatever on). When coupled with exploding units, buildings can create a fun barrier (or if It's black, a pit in Ice World )

If you guys are talking about something called, on the WCIII editor, boundary, that is simply for designating an area/tile as unplayable. When applied on the editor, it makes the terrain darker - in game, it simply serves as something to prevent any units to move there, at all. Not sure about projectiles.

That's exactly what I mean. Projectiles can go through, I'm sure. You can place anything such as doodads under those boundaries.

But can you move the boundaries?
If so, then PWNAGEGEGEGEGE!!!

If not, then meh.
Its just like map dimension.

My guess is you would be able to move/change these bounds. Were you able to change them in the WCIII Editor?

If you can't I don't really think there will be any easy way to keep units out of certain areas given some units now have the ability to navigate over higher terrain.

Quote from Rantent

But can you move the boundaries?
If so, then PWNAGEGEGEGEGE!!!

If not, then meh.
Its just like map dimension.

You can put them anywhere in the map.

So is it kinda like null tiles, but impassable? >.>

It's nothing like null tiles.

Null tiles can be altered lightly through the use of creep.
"Boundary" renders the location unpassible by human players, but if a computer is issued to move through that, it will. If you've ever played a WARIII map, you'll notice that the perimiter is about 3-5 squares of boundary.

These boundaries are very useful, in WarCraft III they already used them for cutscenes, blockade, and to limit shortcuts. They actually play a big role, especially in mini game maps.

Quick, call MA! We need MOAR Mini Gamez.
However, they didnt play "Major" roles in mini games. Those maps were usually formed like starcraft with terrain blocking the areas rather than boundaries.

i think i know how it would be good for a map! The barrier moves to the end of the room, and however it grabs, must be taken dead

No no. The Barrier CANNOT move. It is inanimate.

Ðamn, but it would make a good horror game where you could actually run away from teh wall even though triggers would make it Harder

The use of black units is availible though, so you can make a building with an attack and have it black

Quote from FooFighters[WP]

Ðamn, but it would make a good horror game where you could actually run away from teh wall even though triggers would make it Harder

That all depends if the StarCraft II Map Editor allows us to. Not a single word has been mentioned of a feature, so we all can assume what to expect. Especially since they said it will be a lot better than the WarCraft III World Editor but as easy as the StarCraft Campaign Editor. I'm not exactly sure though, but that's through memory.