PFB FILE FORMAT [JAN 06 2024]
 -----------------------------

 Prefab is a text file with INI structure that contains information about sprites that
 should be automatically created once user inserting it in a map.

 [PrefabInfo]                                          // A prefab header section
 Version=3                                             // Version of the PFB format. At the moment of writing this text it should be 3.		
 BoxSize=(Xwidth, Yheight, Zheight)                    // mostRight spr.X - mostLeft spr.X, mostBottom spr.Y - mostTop spr.Y, mostBottom spr.Z - mostTop spr.Z.
 Offsets=(Z above ceiling, Z below floor, 0, 0, 0, 0)  // mostBottom spr.Z + sprite size, mostTop spr.Z + sprite size.
 FaceAngle=1536 | 1024 | 0 | 512                       // If not exist or -1, the prefab treating as non-wall.
 Sprite#0000 = (n, n, n, n, n ...)                     // Sprite #N info. the first 17 values is a common BUILD sprite info,
 ..........                                            // if sprite is an x-sprite, then additional 21 values will be appended to param
 ..........                                            // see below for param offsets description
 ..........
 Sprite#0511 = (n, n, n, n, n ...)
 
 [Thumbnail]											// Optional section with encoded tile.
 // You may see BIN2TXT source code to decode/encode the image
 // Also see pfbAttachThumbnail() function code for
 // examples.

 BUILD SPRITE PARAM OFFSET DESCRIPTION
 -------------------------------------
 [0]  sprite[n].x coordinate relative to center
 [1]  sprite[n].y coordinate relative to center
 [2]  sprite[n].z coordinate relative to center
 [3]  sprite[n].picnum
 [4]  sprite[n].pal
 [5]  sprite[n].shade
 [6]  < sprite slope >, for Nblood
 [7]  sprite[n].xrepeat
 [8]  sprite[n].yrepeat
 [9]  sprite[n].xoffset
 [10] sprite[n].yoffset
 [11] sprite[n].clipdist
 [12] sprite[n].ang
 [13] sprite[n].cstat
 [14] sprite[n].statnum
 [15] sprite[n].hitag
 [16] sprite[n].lotag

 BLOOD XSPRITE PARAM OFFSET DESCRIPTION
 --------------------------------------
 [17] xsprite[n].rxID
 [18] xsprite[n].txID
 [19] xsprite[n].state
 [20] xsprite[n].restState
 [21] xsprite[n].command
 [22] xsprite[n].triggerOn        (BIT 0x0001),
      xsprite[n].triggerOff       (BIT 0x0002),
 
 [23] xsprite[n].busyTime
 [24] xsprite[n].waitTime
 [25] xsprite[n].data1
 [26] xsprite[n].data2
 [27] xsprite[n].data3
 [28] xsprite[n].data4
 [29] xsprite[n].triggerPush      (BIT 0x0001),
      xsprite[n].triggerVector    (BIT 0x0002),
      xsprite[n].triggerImpact    (BIT 0x0004),
      xsprite[n].triggerPickup    (BIT 0x0008),
      xsprite[n].triggerTouch     (BIT 0x0010),
      xsprite[n].triggerSight     (BIT 0x0020),
      xsprite[n].triggerProximity (BIT 0x0040),
 
 [30] xsprite[n].dropItem
 [31] xsprite[n].respawn
 [32] xsprite[n].key
 [33] xsprite[n].busyWave
 [34] xsprite[n].locked           (BIT 0x0001),
      xsprite[n].dudeLockout      (BIT 0x0002),
      xsprite[n].triggerOnce      (BIT 0x0004),
      xsprite[n].decoupled        (BIT 0x0008),
      xsprite[n].interruptable    (BIT 0x0010),
 
 [35] xsprite[n].dudeFlag4        (BIT 0x0001),
      xsprite[n].dudeDeaf         (BIT 0x0002),
      xsprite[n].dudeGuard        (BIT 0x0004),
      xsprite[n].dudeAmbush       (BIT 0x0008),
      xsprite[n].difficulty       (BIT 0x0010, used as Stealth dude flag in Nblood),
 
 [36] xsprite[n].launchLevel
 [37] xsprite[n].launchSingle     (BIT 0x0001)
      xsprite[n].launchBath       (BIT 0x0002)
      xsprite[n].launchCoop       (BIT 0x0004)
      xsprite[n].launchTeam       (BIT 0x0008)