r_crosshairs.c

   1 #include "quakedef.h"
   2
   3 cvar_t crosshair_brightness = {CVAR_SAVE, "crosshair_brightness", "1.0"};
   4 cvar_t crosshair_alpha = {CVAR_SAVE, "crosshair_alpha", "1.0"};
   5 cvar_t crosshair_flashspeed = {CVAR_SAVE, "crosshair_flashspeed", "2"};
   6 cvar_t crosshair_flashrange = {CVAR_SAVE, "crosshair_flashrange", "0.1"};
   7
   8 // must match NUMCROSSHAIRS in gl_draw.c
   9 #define NUMCROSSHAIRS 5
  10
  11 void R_Crosshairs_Init(void)
  12 {
  13         Cvar_RegisterVariable(&crosshair_brightness);
  14         Cvar_RegisterVariable(&crosshair_alpha);
  15         Cvar_RegisterVariable(&crosshair_flashspeed);
  16         Cvar_RegisterVariable(&crosshair_flashrange);
  17 }
  18
  19 void DrawCrosshair(int num)
  20 {
  21         int i;
  22         byte *color;
  23         float scale, base;
  24         if (num < 0 || num >= NUMCROSSHAIRS)
  25                 num = 0;
  26         if (cl.viewentity)
  27         {
  28                 i = (cl.scores[cl.viewentity-1].colors & 0xF) << 4;
  29                 if (i >= 208 && i < 224) // blue
  30                         i += 8;
  31                 else if (i < 128 || i >= 224) // 128-224 are backwards ranges (bright to dark, rather than dark to bright)
  32                         i += 15;
  33         }
  34         else
  35                 i = 15;
  36         color = (byte *) &d_8to24table[i];
  37         if (crosshair_flashspeed.value >= 0.01f)
  38                 base = (sin(realtime * crosshair_flashspeed.value * (M_PI*2.0f)) * crosshair_flashrange.value);
  39         else
  40                 base = 0.0f;
  41         scale = crosshair_brightness.value * (1.0f / 255.0f);
  42         DrawQ_Pic(vid.conwidth * 0.5f - 8.0f, vid.conheight * 0.5f - 8.0f, va("gfx/crosshair%i.tga", num + 1), 16.0f, 16.0f, color[0] * scale + base, color[1] * scale + base, color[2] * scale + base, crosshair_alpha.value, 0);
  43 }
  44