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 #define NUMCROSSHAIRS 5
   9
  10 static rtexturepool_t *crosshairtexturepool;
  11
  12 static rtexture_t *crosshairtex[NUMCROSSHAIRS];
  13
  14 static byte *crosshairtexdata[NUMCROSSHAIRS] =
  15 {
  16         "0000000000000000"
  17         "0000000000000000"
  18         "0000000000000000"
  19         "0003300000033000"
  20         "0003550000553000"
  21         "0000577007750000"
  22         "0000077007700000"
  23         "0000000000000000"
  24         "0000000000000000"
  25         "0000077007700000"
  26         "0000577007750000"
  27         "0003550000553000"
  28         "0003300000033000"
  29         "0000000000000000"
  30         "0000000000000000"
  31         "0000000000000000"
  32         ,
  33         "0000000000000000"
  34         "0000000000000000"
  35         "0000000000000000"
  36         "0003000000003000"
  37         "0000500000050000"
  38         "0000070000700000"
  39         "0000007007000000"
  40         "0000000000000000"
  41         "0000000000000000"
  42         "0000007007000000"
  43         "0000070000700000"
  44         "0000500000050000"
  45         "0003000000003000"
  46         "0000000000000000"
  47         "0000000000000000"
  48         "0000000000000000"
  49         ,
  50         "0000000000000000"
  51         "0000000770000000"
  52         "0000000770000000"
  53         "0000000000000000"
  54         "0000000000000000"
  55         "0000000440000000"
  56         "0000000440000000"
  57         "0770044004400770"
  58         "0770044004400770"
  59         "0000000440000000"
  60         "0000000440000000"
  61         "0000000000000000"
  62         "0000000770000000"
  63         "0000000770000000"
  64         "0000000000000000"
  65         "0000000000000000"
  66         ,
  67         "0000000000000000"
  68         "0000000000000000"
  69         "0000000000000000"
  70         "0000000000000000"
  71         "0000000000000000"
  72         "0000000000000000"
  73         "0000000000000000"
  74         "0000000000000000"
  75         "0000000077777770"
  76         "0000000075200000"
  77         "0000000072000000"
  78         "0000000070000000"
  79         "0000000070000000"
  80         "0000000070000000"
  81         "0000000000000000"
  82         "0000000000000000"
  83         ,
  84         "0000000000000000"
  85         "0000000000000000"
  86         "0000000000000000"
  87         "0000000000000000"
  88         "0000000000000000"
  89         "0000000070000000"
  90         "0000000000000000"
  91         "0000000040000000"
  92         "0000070404070000"
  93         "0000000040000000"
  94         "0000000000000000"
  95         "0000000070000000"
  96         "0000000000000000"
  97         "0000000000000000"
  98         "0000000000000000"
  99         "0000000000000000"
 100 };
 101
 102 static void crosshairload(int num, byte *in)
 103 {
 104         int i;
 105         byte data[16*16][4];
 106         for (i = 0;i < 16*16;i++)
 107         {
 108                 data[i][0] = data[i][1] = data[i][2] = 255;
 109                 data[i][3] = (in[i] - '0') * 255 / 7;
 110         }
 111         crosshairtex[num] = R_LoadTexture(crosshairtexturepool, va("crosshair%02d", num), 16, 16, &data[0][0], TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE);
 112 }
 113
 114 static void r_crosshairs_start(void)
 115 {
 116         int i;
 117         crosshairtexturepool = R_AllocTexturePool();
 118         for (i = 0;i < NUMCROSSHAIRS;i++)
 119                 crosshairload(i, crosshairtexdata[i]);
 120 //      crosshairtex[1] = crosshairload(crosshairtex2);
 121 }
 122
 123 static void r_crosshairs_shutdown(void)
 124 {
 125         R_FreeTexturePool(&crosshairtexturepool);
 126 }
 127
 128 static void r_crosshairs_newmap(void)
 129 {
 130 }
 131
 132 void R_Crosshairs_Init(void)
 133 {
 134         Cvar_RegisterVariable(&crosshair_brightness);
 135         Cvar_RegisterVariable(&crosshair_alpha);
 136         Cvar_RegisterVariable(&crosshair_flashspeed);
 137         Cvar_RegisterVariable(&crosshair_flashrange);
 138         R_RegisterModule("R_Crosshairs", r_crosshairs_start, r_crosshairs_shutdown, r_crosshairs_newmap);
 139 }
 140
 141 void DrawCrosshair(int num)
 142 {
 143         byte *color;
 144         float scale, base;
 145         if (num < 0 || num >= NUMCROSSHAIRS)
 146                 num = 0;
 147         if (cl.viewentity)
 148         {
 149                 int i = (cl.scores[cl.viewentity-1].colors & 0xF) << 4;
 150                 if (i >= 208 && i < 224) // blue
 151                         i += 8;
 152                 else if (i < 128 || i >= 224) // 128-224 are backwards ranges (bright to dark, rather than dark to bright)
 153                         i += 15;
 154                 color = (byte *) &d_8to24table[i];
 155         }
 156         else
 157                 color = (byte *) &d_8to24table[15];
 158         if (crosshair_flashspeed.value >= 0.01f)
 159 //              scale = (sin(realtime * crosshair_flashspeed.value * (M_PI*2.0f)) * crosshair_flashrange.value + 1.0f) * (1.0f / 255.0f);
 160                 base = (sin(realtime * crosshair_flashspeed.value * (M_PI*2.0f)) * crosshair_flashrange.value);
 161         else
 162                 base = 0.0f;
 163         scale = crosshair_brightness.value / 255.0f;
 164         Draw_GenericPic(crosshairtex[num], color[0] * scale + base, color[1] * scale + base, color[2] * scale + base, crosshair_alpha.value, vid.conwidth * 0.5f - 8.0f, vid.conheight * 0.5f - 8.0f, 16.0f, 16.0f);
 165 }
 166