closest object

Blitz3D Forums/Blitz3D Programming/closest object

cash	(Posted 2007) [#1]

I found some similar examples but wondered if anyone can provide some simple code for the following.

I want to use fixed camera pivots around my level.
This I can achieve several ways so no issue.

The problem is I want to be able to find the closest camerapivot to the player and position the camera there.

Sort of like a realtime resident evil type effect.

creating the pivots points is easy.
positioning the single camera accordingly is easy.

How do I mathematically calculate the nearest camerapivot.

I bet its really simple, but I cant figure it without a ton of math.

Shambler

(Posted 2007) [#2]

Just go through the list of pivots and use http://www.blitzbasic.com/b3ddocs/command.php?name=EntityDistance&ref=3d_a-z to find out how far away they are.

Stevie G

(Posted 2007) [#3]

Assuming you have all the pivots parented to the level

NearestPivot = 0
NearestDistance# = 1000000

for c = 1 to countchildren( Level )
  Pivot = getchild( Level, c )
  distance# = entitydistance( player, Pivot )
  if distance < NearestDistance
    NearestDistance = distance
    NearestPivot = Pivot 
  endif
next

entityparent camera, NearestPivot
positionentity camera, 0,0,0
pointentity camera, player
positionentity camera,player
;entityparent camera, 0

cash	(Posted 2007) [#4]

Thanks stevie, i will test it out. I am thinking of using milkshape and positioning joints around the level to reference the camerapivot. I use this method a lot already to locate areas in the model so it should work. (I hope)