r_crosshairs.c

   1
   2 #include "quakedef.h"
   3 #include "cl_collision.h"
   4
   5 cvar_t crosshair_useteamcolor = {CVAR_SAVE, "crosshair_useteamcolor", "0", "uses team color instead of customizable crosshair color"};
   6 cvar_t crosshair_color_red = {CVAR_SAVE, "crosshair_color_red", "1", "customizable crosshair color"};
   7 cvar_t crosshair_color_green = {CVAR_SAVE, "crosshair_color_green", "0", "customizable crosshair color"};
   8 cvar_t crosshair_color_blue = {CVAR_SAVE, "crosshair_color_blue", "0", "customizable crosshair color"};
   9 cvar_t crosshair_brightness = {CVAR_SAVE, "crosshair_brightness", "1", "how bright the crosshair should be"};
  10 cvar_t crosshair_alpha = {CVAR_SAVE, "crosshair_alpha", "1", "how opaque the crosshair should be"};
  11 cvar_t crosshair_flashspeed = {CVAR_SAVE, "crosshair_flashspeed", "2", "speed at which the crosshair flashes"};
  12 cvar_t crosshair_flashrange = {CVAR_SAVE, "crosshair_flashrange", "0.1", "how much the crosshair flashes"};
  13 cvar_t crosshair_size = {CVAR_SAVE, "crosshair_size", "1", "adjusts size of the crosshair on the screen"};
  14 cvar_t crosshair_static = {CVAR_SAVE, "crosshair_static", "1", "if 1 the crosshair is a 2D overlay, if 0 it is a sprite in the world indicating where your weapon will hit in standard quake mods (if the mod has the weapon somewhere else this won't be accurate)"};
  15
  16 void R_Crosshairs_Init(void)
  17 {
  18         Cvar_RegisterVariable(&crosshair_useteamcolor);
  19         Cvar_RegisterVariable(&crosshair_color_red);
  20         Cvar_RegisterVariable(&crosshair_color_green);
  21         Cvar_RegisterVariable(&crosshair_color_blue);
  22         Cvar_RegisterVariable(&crosshair_brightness);
  23         Cvar_RegisterVariable(&crosshair_alpha);
  24         Cvar_RegisterVariable(&crosshair_flashspeed);
  25         Cvar_RegisterVariable(&crosshair_flashrange);
  26         Cvar_RegisterVariable(&crosshair_size);
  27         Cvar_RegisterVariable(&crosshair_static);
  28 }
  29
  30 void R_GetCrosshairColor(float *out)
  31 {
  32         int i;
  33         vec3_t color;
  34         float scale, base;
  35         if (crosshair_useteamcolor.integer && cl.viewentity >= 1 && cl.viewentity <= cl.maxclients)
  36         {
  37                 i = (cl.scores[cl.viewentity-1].colors & 0xF) << 4;
  38                 if (i >= 208 && i < 224) // blue
  39                         i += 8;
  40                 else if (i < 128 || i >= 224) // 128-224 are backwards ranges (bright to dark, rather than dark to bright)
  41                         i += 15;
  42                 VectorScale((unsigned char *) &palette_complete[i], (1.0f / 255.0f), color);
  43         }
  44         else
  45                 VectorSet(color, crosshair_color_red.value, crosshair_color_green.value, crosshair_color_blue.value);
  46         if (crosshair_flashspeed.value >= 0.01f)
  47                 base = (sin(realtime * crosshair_flashspeed.value * (M_PI*2.0f)) * crosshair_flashrange.value);
  48         else
  49                 base = 0.0f;
  50         scale = crosshair_brightness.value;
  51         out[0] = color[0] * scale + base;
  52         out[1] = color[1] * scale + base;
  53         out[2] = color[2] * scale + base;
  54         out[3] = crosshair_alpha.value;
  55
  56         // clamp the colors and alpha
  57         out[0] = bound(0, out[0], 1);
  58         out[1] = bound(0, out[1], 1);
  59         out[2] = bound(0, out[2], 1);
  60         out[3] = bound(0, out[3], 1.0f);
  61 }
  62
  63 void R_DrawWorldCrosshair(void)
  64 {
  65         int num;
  66         cachepic_t *pic;
  67         vec3_t v1, v2, spriteorigin;
  68         vec_t spritescale;
  69         vec4_t color;
  70         trace_t trace;
  71         if (r_letterbox.value)
  72                 return;
  73         if (crosshair_static.integer)
  74                 return;
  75         num = crosshair.integer;
  76         if (num < 1 || num > NUMCROSSHAIRS || cl.intermission)
  77                 return;
  78         if (!cl.viewentity || !cl.entities[cl.viewentity].state_current.active)
  79                 return;
  80         pic = r_crosshairs[num];
  81         if (!pic)
  82                 return;
  83         R_GetCrosshairColor(color);
  84
  85         // trace the shot path up to a certain distance
  86         Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, v1);
  87         v1[2] += 16; // HACK: this depends on the QC
  88
  89         // get the forward vector for the gun (not the view)
  90         AngleVectors(cl.viewangles, v2, NULL, NULL);
  91         //VectorCopy(r_view.origin, v1);
  92         VectorMA(v1, 8192, v2, v2);
  93         trace = CL_TraceBox(v1, vec3_origin, vec3_origin, v2, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, false);
  94         spritescale = trace.fraction * (8192.0f / 40.0f) * crosshair_size.value;
  95         VectorCopy(trace.endpos, spriteorigin);
  96
  97         // draw the sprite
  98         R_DrawSprite(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, pic->tex, NULL, true, spriteorigin, r_view.right, r_view.up, spritescale, -spritescale, -spritescale, spritescale, color[0], color[1], color[2], color[3]);
  99 }
 100
 101 void R_Draw2DCrosshair(void)
 102 {
 103         int num;
 104         cachepic_t *pic;
 105         vec4_t color;
 106         if (r_letterbox.value)
 107                 return;
 108         if (!crosshair_static.integer)
 109                 return;
 110         num = crosshair.integer;
 111         if (num < 1 || num > NUMCROSSHAIRS || cl.intermission)
 112                 return;
 113         if (!cl.viewentity || !cl.entities[cl.viewentity].state_current.active)
 114                 return;
 115         pic = r_crosshairs[num];
 116         if (pic)
 117         {
 118                 R_GetCrosshairColor(color);
 119                 DrawQ_Pic((vid_conwidth.integer - pic->width * crosshair_size.value) * 0.5f, (vid_conheight.integer - pic->height * crosshair_size.value) * 0.5f, pic, pic->width * crosshair_size.value, pic->height * crosshair_size.value, color[0], color[1], color[2], color[3], 0);
 120         }
 121 }
 122
 123
 124
 125