Function DrawVisFadingLine

Descent3/viseffect.cpp:934–988

Draws a weapons fading line

// Draws a weapons fading line
void DrawVisFadingLine(vis_effect *vis) {
  float norm_time;
  float time_live = Gametime - vis->creation_time;
  float size = vis->size;

  int visnum = vis - VisEffects;
  norm_time = time_live / vis->lifetime;

  if (norm_time >= 1)
    norm_time = .99999f; // don't go over!

  rend_SetAlphaType(AT_SATURATE_VERTEX);
  rend_SetTextureType(TT_FLAT);
  rend_SetLighting(LS_GOURAUD);
  rend_SetColorModel(CM_RGB);
  rend_SetOverlayType(OT_NONE);

  vector vecs[2];
  g3Point pnts[2];
  int i;

  vecs[0] = vis->pos;
  vecs[1] = vis->end_pos;

  if (!(vis->flags & VF_WINDSHIELD_EFFECT)) // bash end position
  {
    vector vel = -vis->velocity;
    vm_NormalizeVectorFast(&vel);
    vecs[1] = vis->pos + (vel * vis->size);
  }

  ddgr_color color = GR_16_TO_COLOR(vis->lighting_color);
  int r = GR_COLOR_RED(color);
  int g = GR_COLOR_GREEN(color);
  int b = GR_COLOR_BLUE(color);

  for (i = 0; i < 2; i++) {
    g3_RotatePoint(&pnts[i], &vecs[i]);
    pnts[i].p3_flags |= PF_RGBA;
    pnts[i].p3_r = (r / 255.0);
    pnts[i].p3_g = (g / 255.0);
    ;
    pnts[i].p3_b = (b / 255.0);
    ;
  }

  if (vis->flags & VF_WINDSHIELD_EFFECT)
    pnts[0].p3_a = .3f;
  else
    pnts[0].p3_a = 1.0 - norm_time;

  pnts[1].p3_a = 0.0;

  g3_DrawSpecialLine(&pnts[0], &pnts[1]);
}

// Draws a blast ring vis effect
void DrawVisBlastRing(vis_effect *vis) {