[Solved] Map's boundaries

[Athur12A2]

Hi guys, I'm kind of confused about GetWorldBounds(), bj_mapInitialPlayableArea, and bj_mapInitialCameraBounds. What is the different between the 1st and the other 2?

I'm trying to make a short library which contains dummy units within map. I found that some get max/min X/Y from GetWorldBound, but some others get them from GetCameraBound. So what should I pick?

 

[Flux]

GetWorldBounds() returns the rect of the whole map (includes the darkened area). bj_mapInitialPlayableArea returns the rect of the portion of the map units can reach. bj_mapInitialCameraBounds is a slightly smaller version of bj_mapInitialPlayableArea where panning the camera stops once you reached the bj_mapInitialCameraBounds.

 

[DracoL1ch]

bj_mapInitialPlayableArea depends on camera limits, GetWorldBounds is simply whole map rectangle
normally you'd like to use 1st because if unit steps on black map borders it's just fine, but as soon as it leaves WorldBounds game crashes

 

[Athur12A2]

Thx guys, somehow I used GetWorldBounds() to get max/min value of X and Y. But the map keep crashing when I cast towards south (270 degree), it didn't happen to the other 3 sides.

• Set BoundMaxX = ((Max X of (Entire map)) - 500.00)
• Set BoundMaxY = ((Max Y of (Entire map)) - 500.00)
• Set BoundMinX = ((Min X of (Entire map)) + 500.00)
• Set BoundMinY = ((Min Y of (Entire map)) + 500.00)
• Custom script: set rc=Rect( udg_BoundMinX, udg_BoundMinY, udg_BoundMaxX, udg_BoundMaxY )

 

[Flux]

Why are you adding a 500 offset? If your purpose is to hide dummy units, just use GetRectMax/MinX/Y on GetWorldBounds.
Or you can use ShowUnit(dummy, false) and then re-adding 'Aloc' when you need the dummy again.

 

[Athur12A2]

I keep the unit contained in the map by setting its X/Y when unit leaves region rc. I added 500 offset for safe distance actually, thing works well without that number as well, EXCEPT when I make the dummy go south, game crashes when it hits the southern side of the map.

 

[Flux]

You want something like BoundSentinel?
For the crashing part, It seems crashing only happens at bottom part (look at post#5 in the linked thread)

 

[Athur12A2]

Yes, it seems he used CameraBounds. I'll go along with GetWorldBounds and offset.

 

[Dr Super Good]

I keep the unit contained in the map by setting its X/Y when unit leaves region rc.

By the time a leave region event fires it is already too late and the game has crashed.

Before moving a unit to a new position you need to test that the destination point is within the playable map area. You also need to make sure that there is a multi tile non-playable boarder around the edge of the map so that as little as possible interacts with the direct map edge.

Something as simple as flying units directly against the map edge has been known to cause a crash.