Function CG_AddMarks

code/cgame/cg_marks.cpp:233–286

#define	MARK_FADE_TIME		1000

void CG_AddMarks( void ) {
	int			j;
	markPoly_t	*mp, *next;
	int			t;
	int			fade;

	if ( !cg_addMarks.integer ) {
		return;
	}

	mp = cg_activeMarkPolys.nextMark;
	for ( ; mp != &cg_activeMarkPolys ; mp = next ) {
		// grab next now, so if the local entity is freed we
		// still have it
		next = mp->nextMark;

		// see if it is time to completely remove it
		if ( cg.time > mp->time + MARK_TOTAL_TIME ) {
			CG_FreeMarkPoly( mp );
			continue;
		}

		// fade all marks out with time
		t = mp->time + MARK_TOTAL_TIME - cg.time;
		if ( t < MARK_FADE_TIME ) {
			fade = 255 * t / MARK_FADE_TIME;
			if ( mp->alphaFade ) {
				for ( j = 0 ; j < mp->poly.numVerts ; j++ ) {
					mp->verts[j].modulate[3] = fade;
				}
			}
			else
			{
				float f = (float)t / MARK_FADE_TIME;
				for ( j = 0 ; j < mp->poly.numVerts ; j++ ) {
					mp->verts[j].modulate[0] = mp->color[0] * f;
					mp->verts[j].modulate[1] = mp->color[1] * f;
					mp->verts[j].modulate[2] = mp->color[2] * f;
				}
			}
		}
		else
		{
			for ( j = 0 ; j < mp->poly.numVerts ; j++ ) {
				mp->verts[j].modulate[0] = mp->color[0];
				mp->verts[j].modulate[1] = mp->color[1];
				mp->verts[j].modulate[2] = mp->color[2];
			}
		}


		cgi_R_AddPolyToScene( mp->markShader, mp->poly.numVerts, mp->verts );
	}
}