home *** CD-ROM | disk | FTP | other *** search
/ STraTOS 1997 April & May / STraTOS 1 - 1997 April & May.iso / CD01 / INTERNET / SITES / RAND / T0422 / text0052.txt < prev    next >
Encoding:
Text File  |  1997-02-06  |  1.4 KB  |  35 lines
  1. > In DOOM I & II, the player has sometime to jump. I don't know what sort of
  2. > trajectory did ID Software:
  3. > 
  4. > 
  5. >  *************            ID Software trajectory ???
  6. > ----------+ # *****      /                                     time
  7. >           | #      ***  /                            +--------->
  8. >           | #          **                            |----
  9. >           | #            *********                   |    ---
  10. >           | #            +----------------           |        \
  11. >           | #  BM's traj |                           |         \
  12. >           | # /          |                         z V          |
  13. >           | #            |
  14. >           | ###########  |
  15. >           +--------------+                P(t) = P0 + V0*t + 0.5*G*t*t
  16. > 
  17. >                  with: P:  position matrix               P=(x;y;z)
  18. >                        P0: position just before jumping  P0=(x0;y0;z0)
  19. >                        V0: motion just before jumping    V0=(vx0;vy0;vz0)
  20. >                        G:  gravity                       G=(0;0;9.81)
  21. > 
  22. > As you see, wall collision must be on verticals walls, but also on horizontals
  23. > (falling motion).
  24. > There must be a maximal height that the player can go through, without beeing
  25. > stopped (for example, stairs).
  26.  
  27. I havn't even thought about that! You are right. :-)
  28.  
  29. HHmmm... I guess this has to do with the 3D engine, or?
  30. Wall collsion is another piece of shit though. ;-)
  31.  
  32. //Magnus Kollberg
  33.  
  34.  
  35.