qcsrc/common/effects/qc/lightningarc.qc

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