qcsrc/client/laser.qc

   1 // a laser goes from origin in direction angles
   2 // it has color 'colormod'
   3 // and stops when something is in the way
   4 .float cnt; // end effect
   5 .vector colormod;
   6 .float state; // on-off
   7 .float count; // flags for the laser
   8 .vector velocity;
   9 .float alpha;
  10 .float scale; // scaling factor of the thickness
  11 .float modelscale; // scaling factor of the dlight
  12
  13 // TODO move these into a heade file
  14 float trace_dphitq3surfaceflags;
  15 float Q3SURFACEFLAG_SKY = 4; // sky surface (also has NOIMPACT and NOMARKS set)
  16 float Q3SURFACEFLAG_NOIMPACT = 16; // projectiles should remove themselves on impact (this is set on sky)
  17
  18 void Draw_Laser()
  19 {
  20         if(!self.state)
  21                 return;
  22         InterpolateOrigin_Do();
  23         if(self.count & 0x80)
  24         {
  25                 if(self.count & 0x10)
  26                 {
  27                         trace_endpos = self.velocity,
  28                         trace_dphitq3surfaceflags = 0;
  29                 }
  30                 else
  31                         traceline(self.origin, self.velocity, 0, self);
  32         }
  33         else
  34         {
  35                 if(self.count & 0x10)
  36                 {
  37                         trace_endpos = self.origin + v_forward * 1048576;
  38                         trace_dphitq3surfaceflags = Q3SURFACEFLAG_SKY;
  39                 }
  40                 else
  41                 {
  42                         makevectors(self.angles);
  43                         traceline(self.origin, self.origin + v_forward * 32768, 0, self);
  44                         if(trace_dphitq3surfaceflags & Q3SURFACEFLAG_SKY)
  45                                 trace_endpos = self.origin + v_forward * 1048576;
  46                 }
  47         }
  48         if(self.scale != 0)
  49         {
  50                 if(self.alpha)
  51                 {
  52                         Draw_CylindricLine(self.origin, trace_endpos, self.scale, "particles/laserbeam", 0, time * 3, self.colormod, self.alpha, DRAWFLAG_NORMAL, view_origin);
  53                 }
  54                 else
  55                 {
  56                         Draw_CylindricLine(self.origin, trace_endpos, self.scale, "particles/laserbeam", 0, time * 3, self.colormod, 0.5, DRAWFLAG_ADDITIVE, view_origin);
  57                 }
  58         }
  59         if not(trace_dphitq3surfaceflags & (Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT))
  60         {
  61                 if(self.cnt >= 0)
  62                         pointparticles(self.cnt, trace_endpos, trace_plane_normal, drawframetime * 1000);
  63                 if(self.colormod != '0 0 0' && self.modelscale != 0)
  64                         R_AddDynamicLight(trace_endpos + trace_plane_normal * 1, self.modelscale, self.colormod * 5);
  65         }
  66 }
  67
  68 void Ent_Laser()
  69 {
  70         float f;
  71         InterpolateOrigin_Undo();
  72
  73         // 30 bytes, or 13 bytes for just moving
  74         f = ReadByte();
  75         self.count = (f & 0xF0);
  76
  77         if(self.count & 0x80)
  78                 self.iflags = IFLAG_VELOCITY;
  79         else
  80                 self.iflags = IFLAG_ANGLES;
  81
  82         if(f & 1)
  83         {
  84                 self.origin_x = ReadCoord();
  85                 self.origin_y = ReadCoord();
  86                 self.origin_z = ReadCoord();
  87         }
  88         if(f & 8)
  89         {
  90                 self.colormod_x = ReadByte() / 255.0;
  91                 self.colormod_y = ReadByte() / 255.0;
  92                 self.colormod_z = ReadByte() / 255.0;
  93                 if(f & 0x40)
  94                         self.alpha = ReadByte() / 255.0;
  95                 else
  96                         self.alpha = 0;
  97                 self.scale = 2;
  98                 self.modelscale = 50;
  99                 if(f & 0x20)
 100                 {
 101                         self.scale *= ReadByte() / 16.0; // beam radius
 102                         self.modelscale *= ReadByte() / 16.0; // dlight radius
 103                 }
 104                 self.cnt = ReadShort() - 1; // effect number
 105         }
 106         if(f & 2)
 107         {
 108                 if(f & 0x80)
 109                 {
 110                         self.velocity_x = ReadCoord();
 111                         self.velocity_y = ReadCoord();
 112                         self.velocity_z = ReadCoord();
 113                 }
 114                 else
 115                 {
 116                         self.angles_x = ReadAngle();
 117                         self.angles_y = ReadAngle();
 118                 }
 119         }
 120         if(f & 4)
 121                 self.state = ReadByte();
 122         InterpolateOrigin_Note();
 123         self.draw = Draw_Laser;
 124 }