r_crosshairs.c

   1 #include "quakedef.h"
   2
   3 cvar_t crosshair_brightness = {CVAR_SAVE, "crosshair_brightness", "1"};
   4 cvar_t crosshair_alpha = {CVAR_SAVE, "crosshair_alpha", "1"};
   5 cvar_t crosshair_flashspeed = {CVAR_SAVE, "crosshair_flashspeed", "2"};
   6 cvar_t crosshair_flashrange = {CVAR_SAVE, "crosshair_flashrange", "0.1"};
   7 cvar_t crosshair_size = {CVAR_SAVE, "crosshair_size", "1"};
   8
   9 // must match NUMCROSSHAIRS in gl_draw.c
  10 #define NUMCROSSHAIRS 5
  11
  12 void R_Crosshairs_Init(void)
  13 {
  14         Cvar_RegisterVariable(&crosshair_brightness);
  15         Cvar_RegisterVariable(&crosshair_alpha);
  16         Cvar_RegisterVariable(&crosshair_flashspeed);
  17         Cvar_RegisterVariable(&crosshair_flashrange);
  18         Cvar_RegisterVariable(&crosshair_size);
  19 }
  20
  21 void DrawCrosshair(int num)
  22 {
  23         int i;
  24         qbyte *color;
  25         float scale, base;
  26         char *picname;
  27         cachepic_t *pic;
  28         if (num < 0 || num >= NUMCROSSHAIRS)
  29                 num = 0;
  30         if (cl.viewentity >= 1 && cl.viewentity <= cl.maxclients)
  31         {
  32                 i = (cl.scores[cl.viewentity-1].colors & 0xF) << 4;
  33                 if (i >= 208 && i < 224) // blue
  34                         i += 8;
  35                 else if (i < 128 || i >= 224) // 128-224 are backwards ranges (bright to dark, rather than dark to bright)
  36                         i += 15;
  37         }
  38         else
  39                 i = 15;
  40         color = (qbyte *) &d_8to24table[i];
  41         if (crosshair_flashspeed.value >= 0.01f)
  42                 base = (sin(realtime * crosshair_flashspeed.value * (M_PI*2.0f)) * crosshair_flashrange.value);
  43         else
  44                 base = 0.0f;
  45         scale = crosshair_brightness.value * (1.0f / 255.0f);
  46         picname = va("gfx/crosshair%i.tga", num + 1);
  47         pic = Draw_CachePic(picname);
  48         if (pic)
  49                 DrawQ_Pic((vid.conwidth - pic->width * crosshair_size.value) * 0.5f, (vid.conheight - pic->height * crosshair_size.value) * 0.5f, picname, pic->width * crosshair_size.value, pic->height * crosshair_size.value, color[0] * scale + base, color[1] * scale + base, color[2] * scale + base, crosshair_alpha.value, 0);
  50 }
  51