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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                         makevectors(self.angles);
38                         trace_endpos = self.origin + v_forward * 1048576;
39                         trace_dphitq3surfaceflags = Q3SURFACEFLAG_SKY;
40                 }
41                 else
42                 {
43                         makevectors(self.angles);
44                         traceline(self.origin, self.origin + v_forward * 32768, 0, self);
45                         if(trace_dphitq3surfaceflags & Q3SURFACEFLAG_SKY)
46                                 trace_endpos = self.origin + v_forward * 1048576;
47                 }
48         }
49         if(self.scale != 0)
50         {
51                 if(self.alpha)
52                 {
53                         Draw_CylindricLine(self.origin, trace_endpos, self.scale, "particles/laserbeam", 0, time * 3, self.colormod, self.alpha, DRAWFLAG_NORMAL, view_origin);
54                 }
55                 else
56                 {
57                         Draw_CylindricLine(self.origin, trace_endpos, self.scale, "particles/laserbeam", 0, time * 3, self.colormod, 0.5, DRAWFLAG_ADDITIVE, view_origin);
58                 }
59         }
60         if not(trace_dphitq3surfaceflags & (Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT))
61         {
62                 if(self.cnt >= 0)
63                         pointparticles(self.cnt, trace_endpos, trace_plane_normal, drawframetime * 1000);
64                 if(self.colormod != '0 0 0' && self.modelscale != 0)
65                         adddynamiclight(trace_endpos + trace_plane_normal * 1, self.modelscale, self.colormod * 5);
66         }
67 }
68
69 void Ent_Laser()
70 {
71         float f;
72         InterpolateOrigin_Undo();
73
74         // 30 bytes, or 13 bytes for just moving
75         f = ReadByte();
76         self.count = (f & 0xF0);
77
78         if(self.count & 0x80)
79                 self.iflags = IFLAG_VELOCITY;
80         else
81                 self.iflags = IFLAG_ANGLES;
82
83         if(f & 1)
84         {
85                 self.origin_x = ReadCoord();
86                 self.origin_y = ReadCoord();
87                 self.origin_z = ReadCoord();
88                 setorigin(self, self.origin);
89         }
90         if(f & 8)
91         {
92                 self.colormod_x = ReadByte() / 255.0;
93                 self.colormod_y = ReadByte() / 255.0;
94                 self.colormod_z = ReadByte() / 255.0;
95                 if(f & 0x40)
96                         self.alpha = ReadByte() / 255.0;
97                 else
98                         self.alpha = 0;
99                 self.scale = 2;
100                 self.modelscale = 50;
101                 if(f & 0x20)
102                 {
103                         self.scale *= ReadByte() / 16.0; // beam radius
104                         self.modelscale *= ReadByte() / 16.0; // dlight radius
105                 }
106                 if((f & 0x80) || !(f & 0x10))
107                         self.cnt = ReadShort() - 1; // effect number
108                 else
109                         self.cnt = 0;
110         }
111         if(f & 2)
112         {
113                 if(f & 0x80)
114                 {
115                         self.velocity_x = ReadCoord();
116                         self.velocity_y = ReadCoord();
117                         self.velocity_z = ReadCoord();
118                 }
119                 else
120                 {
121                         self.angles_x = ReadAngle();
122                         self.angles_y = ReadAngle();
123                 }
124         }
125         if(f & 4)
126                 self.state = ReadByte();
127         InterpolateOrigin_Note();
128         self.draw = Draw_Laser;
129 }