qcsrc/client/interpolate.qc

   1 // FIXME make this generic code, to be used for other entities too?
   2 .vector iorigin1, iorigin2;
   3 .vector ivelocity1, ivelocity2;
   4 .vector iforward1, iforward2;
   5 .vector iup1, iup2;
   6 .float itime1, itime2;
   7 void InterpolateOrigin_Reset()
   8 {
   9         self.iflags &~= IFLAG_INTERNALMASK;
  10         self.itime1 = self.itime2 = 0;
  11 }
  12 void InterpolateOrigin_Note()
  13 {
  14         float dt;
  15         float f0;
  16
  17         dt = time - self.itime2;
  18
  19         f0 = self.iflags;
  20         if(self.iflags & IFLAG_PREVALID)
  21                 self.iflags |= IFLAG_VALID;
  22         else
  23                 self.iflags |= IFLAG_PREVALID;
  24
  25         self.iorigin1 = self.iorigin2;
  26         self.iorigin2 = self.origin;
  27
  28         if(self.iflags & IFLAG_AUTOANGLES)
  29                 if(self.iorigin2 != self.iorigin1)
  30                         self.angles = vectoangles(self.iorigin2 - self.iorigin1);
  31
  32         if(self.iflags & IFLAG_ANGLES)
  33         {
  34                 fixedmakevectors(self.angles);
  35                 if(f0 & IFLAG_VALID)
  36                 {
  37                         self.iforward1 = self.iforward2;
  38                         self.iup1 = self.iup2;
  39                 }
  40                 else
  41                 {
  42                         self.iforward1 = v_forward;
  43                         self.iup1 = v_up;
  44                 }
  45                 self.iforward2 = v_forward;
  46                 self.iup2 = v_up;
  47         }
  48
  49         if(self.iflags & IFLAG_VELOCITY)
  50         {
  51                 self.ivelocity1 = self.ivelocity2;
  52                 self.ivelocity2 = self.velocity;
  53         }
  54
  55         if(vlen(self.iorigin2 - self.iorigin1) > 1000)
  56         {
  57                 self.itime1 = self.itime2 = time; // don't lerp
  58         }
  59
  60         if((self.iflags & IFLAG_VELOCITY) && (vlen(self.ivelocity2 - self.ivelocity1) > 1000))
  61         {
  62                 self.itime1 = self.itime2 = time; // don't lerp
  63         }
  64
  65         if(dt < 0.2)
  66         {
  67                 self.itime1 = serverprevtime;
  68                 self.itime2 = time;
  69         }
  70         else
  71         {
  72                 // don't lerp
  73                 self.itime1 = self.itime2 = time;
  74         }
  75 }
  76 void InterpolateOrigin_Do()
  77 {
  78         vector forward, up;
  79         if(self.itime1 && self.itime2 && self.itime1 != self.itime2)
  80         {
  81                 float f;
  82                 f = bound(0, (time - self.itime1) / (self.itime2 - self.itime1), 1);
  83                 self.origin = (1 - f) * self.iorigin1 + f * self.iorigin2;
  84                 if(self.iflags & IFLAG_ANGLES)
  85                 {
  86                         forward = (1 - f) * self.iforward1 + f * self.iforward2;
  87                         up = (1 - f) * self.iup1 + f * self.iup2;
  88                         self.angles = fixedvectoangles2(forward, up);
  89                 }
  90                 if(self.iflags & IFLAG_VELOCITY)
  91                         self.velocity = (1 - f) * self.ivelocity1 + f * self.ivelocity2;
  92         }
  93 }
  94 void InterpolateOrigin_Undo()
  95 {
  96         self.origin = self.iorigin2;
  97         if(self.iflags & IFLAG_ANGLES)
  98                 self.angles = fixedvectoangles2(self.iforward2, self.iup2);
  99         if(self.iflags & IFLAG_VELOCITY)
 100                 self.velocity = self.ivelocity2;
 101 }
 102