r_crosshairs.c

   1
   2 #include "quakedef.h"
   3 #include "cl_collision.h"
   4
   5 cvar_t crosshair_color_red = {CVAR_SAVE, "crosshair_color_red", "1", "customizable crosshair color"};
   6 cvar_t crosshair_color_green = {CVAR_SAVE, "crosshair_color_green", "0", "customizable crosshair color"};
   7 cvar_t crosshair_color_blue = {CVAR_SAVE, "crosshair_color_blue", "0", "customizable crosshair color"};
   8 cvar_t crosshair_color_alpha = {CVAR_SAVE, "crosshair_color_alpha", "1", "how opaque the crosshair should be"};
   9 cvar_t crosshair_size = {CVAR_SAVE, "crosshair_size", "1", "adjusts size of the crosshair on the screen"};
  10 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)"};
  11
  12 void R_Crosshairs_Init(void)
  13 {
  14         Cvar_RegisterVariable(&crosshair_color_red);
  15         Cvar_RegisterVariable(&crosshair_color_green);
  16         Cvar_RegisterVariable(&crosshair_color_blue);
  17         Cvar_RegisterVariable(&crosshair_color_alpha);
  18         Cvar_RegisterVariable(&crosshair_size);
  19         Cvar_RegisterVariable(&crosshair_static);
  20 }
  21
  22 void R_DrawWorldCrosshair(void)
  23 {
  24         int num;
  25         cachepic_t *pic;
  26         vec3_t v1, v2, spriteorigin;
  27         vec_t spritescale;
  28         trace_t trace;
  29         if (r_letterbox.value)
  30                 return;
  31         if (crosshair_static.integer)
  32                 return;
  33         num = crosshair.integer;
  34         if (num < 1 || num > NUMCROSSHAIRS || cl.intermission)
  35                 return;
  36         if (!cl.viewentity || !cl.entities[cl.viewentity].state_current.active)
  37                 return;
  38         pic = r_crosshairs[num];
  39         if (!pic)
  40                 return;
  41
  42         // trace the shot path up to a certain distance
  43         Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, v1);
  44         v1[2] += 16; // HACK: this depends on the QC
  45
  46         // get the forward vector for the gun (not the view)
  47         AngleVectors(cl.viewangles, v2, NULL, NULL);
  48         //VectorCopy(r_view.origin, v1);
  49         VectorMA(v1, 8192, v2, v2);
  50         trace = CL_TraceBox(v1, vec3_origin, vec3_origin, v2, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY | SUPERCONTENTS_SKY, false);
  51         spritescale = trace.fraction * (8192.0f / 40.0f) * crosshair_size.value;
  52         VectorCopy(trace.endpos, spriteorigin);
  53
  54         // draw the sprite
  55         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, crosshair_color_red.value, crosshair_color_green.value, crosshair_color_blue.value, crosshair_color_alpha.value);
  56 }
  57
  58 void R_Draw2DCrosshair(void)
  59 {
  60         int num;
  61         cachepic_t *pic;
  62         if (r_letterbox.value)
  63                 return;
  64         if (!crosshair_static.integer)
  65                 return;
  66         num = crosshair.integer;
  67         if (num < 1 || num > NUMCROSSHAIRS || cl.intermission)
  68                 return;
  69         if (!cl.viewentity || !cl.entities[cl.viewentity].state_current.active)
  70                 return;
  71         pic = r_crosshairs[num];
  72         if (pic)
  73                 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, crosshair_color_red.value, crosshair_color_green.value, crosshair_color_blue.value, crosshair_color_alpha.value, 0);
  74 }
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