qcsrc/common/effects/qc/lightningarc.qc

   1 #ifdef IMPLEMENTATION
   2 REGISTER_NET_TEMP(TE_CSQC_ARC)
   3
   4 #if defined(SVQC)
   5
   6         void te_csqc_lightningarc(vector from, vector to)
   7         {
   8                 WriteHeader(MSG_BROADCAST, TE_CSQC_ARC);
   9
  10                 WriteCoord(MSG_BROADCAST, from.x);
  11                 WriteCoord(MSG_BROADCAST, from.y);
  12                 WriteCoord(MSG_BROADCAST, from.z);
  13                 WriteCoord(MSG_BROADCAST, to.x);
  14                 WriteCoord(MSG_BROADCAST, to.y);
  15                 WriteCoord(MSG_BROADCAST, to.z);
  16         }
  17
  18 #elif defined(CSQC)
  19
  20 /*
  21 .vector fx_start;
  22 .vector fx_end;
  23 .float  fx_with;
  24 .string fx_texture;
  25 .float  fx_lifetime;
  26
  27 void b_draw()
  28 {
  29     //Draw_CylindricLine(self.fx_start, self.fx_end, self.fx_with, self.fx_texture, 0, time * 3, '1 1 1', 0.7, DRAWFLAG_ADDITIVE, view_origin);
  30     Draw_CylindricLine(self.fx_start, self.fx_end, self.fx_with, self.fx_texture, (self.fx_with/256), 0, '1 1 1', 1, DRAWFLAG_ADDITIVE, view_origin);
  31
  32 }
  33 void b_make(vector s,vector e, string t,float l,float z)
  34 {
  35     entity b;
  36     b = spawn();
  37     b.fx_texture = t;
  38     b.fx_start = s;
  39     b.fx_end = e;
  40     b.fx_with = z;
  41     b.think = SUB_Remove;
  42     b.nextthink = time + l;
  43     b.draw = b_draw;
  44
  45     //b.dphitcontentsmask = DPCONTENTS_SOLID | DPCONTENTS_BODY | DPCONTENTS_PLAYERCLIP;
  46 }
  47 */
  48
  49         void cl_effects_lightningarc(vector from, vector to, float seglength, float drifts, float drifte,
  50         float branchfactor, float branchfactor_add)
  51         {
  52                 float length = vlen(from - to);
  53                 if (length < 1) return;
  54
  55                 // Use at most 16 te_lightning1 segments, as these eat up beam list segments.
  56                 // TODO: Change this to R_BeginPolygon code, then we no longer have this limit.
  57                 int steps = min(16, floor(length / seglength));
  58                 if (steps < 1)
  59                 {
  60                         te_lightning1(world, from, to);
  61                         return;
  62                 }
  63
  64                 float steplength = length / steps;
  65                 vector direction  = normalize(to - from);
  66                 vector pos_l = from;
  67                 if (length > seglength)
  68                 {
  69                         for (int i = 1; i < steps; i += 1)
  70                         {
  71                                 float drift = drifts * (1 - (i / steps)) + drifte * (i / steps);
  72                                 vector dirnew = normalize(direction * (1 - drift) + randomvec() * drift);
  73                                 vector pos = pos_l +  dirnew * steplength;
  74                                 te_lightning1(world, pos_l, pos);
  75                                 // WTF endless recursion if branchfactor is 1.0 (possibly due to adding branchfactor_add). FIXME
  76                                 // if(random() < branchfactor)
  77                                 //     cl_effects_lightningarc(pos, pos + (dirnew * length * 0.25),seglength,drifts,drifte,min(branchfactor + branchfactor_add,1),branchfactor_add);
  78
  79                                 pos_l = pos;
  80                         }
  81                         te_lightning1(world, pos_l, to);
  82                 }
  83                 else
  84                 {
  85                         te_lightning1(world, from, to);
  86                 }
  87         }
  88
  89         NET_HANDLE(TE_CSQC_ARC, bool isNew)
  90         {
  91                 vector from;
  92                 from.x = ReadCoord();
  93                 from.y = ReadCoord();
  94                 from.z = ReadCoord();
  95                 vector to;
  96                 to.x = ReadCoord();
  97                 to.y = ReadCoord();
  98                 to.z = ReadCoord();
  99                 return = true;
 100
 101                 if (autocvar_cl_effects_lightningarc_simple)
 102                 {
 103                         te_lightning1(world, from, to);
 104                 }
 105                 else
 106                 {
 107                         float seglength        = autocvar_cl_effects_lightningarc_segmentlength;
 108                         float drifts           = autocvar_cl_effects_lightningarc_drift_start;
 109                         float drifte           = autocvar_cl_effects_lightningarc_drift_end;
 110                         float branchfactor     = autocvar_cl_effects_lightningarc_branchfactor_start;
 111                         float branchfactor_add = autocvar_cl_effects_lightningarc_branchfactor_add;
 112
 113                         cl_effects_lightningarc(from, to, seglength, drifts, drifte, branchfactor, branchfactor_add);
 114                 }
 115         }
 116
 117 #endif
 118
 119 #endif