From 0023db327bc1db00068284b70e1db45857aeee35 Mon Sep 17 00:00:00 2001
From: Travis Bradshaw <travis.bradshaw@idsoftware.com>
Date: Tue, 31 Jan 2012 14:32:09 -0600
Subject: The Quake sources as originally release under the GPL license on
 December 21, 1999

---
 WinQuake/gl_test.c | 182 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 182 insertions(+)
 create mode 100644 WinQuake/gl_test.c

(limited to 'WinQuake/gl_test.c')

diff --git a/WinQuake/gl_test.c b/WinQuake/gl_test.c
new file mode 100644
index 0000000..a3b1027
--- /dev/null
+++ b/WinQuake/gl_test.c
@@ -0,0 +1,182 @@
+/*
+Copyright (C) 1996-1997 Id Software, Inc.
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "quakedef.h"
+
+#ifdef GLTEST
+
+typedef struct
+{
+	plane_t	*plane;
+	vec3_t	origin;
+	vec3_t	normal;
+	vec3_t	up;
+	vec3_t	right;
+	vec3_t	reflect;
+	float	length;
+} puff_t;
+
+#define	MAX_PUFFS	64
+
+puff_t	puffs[MAX_PUFFS];
+
+
+void Test_Init (void)
+{
+}
+
+
+
+plane_t	junk;
+plane_t	*HitPlane (vec3_t start, vec3_t end)
+{
+	trace_t		trace;
+
+// fill in a default trace
+	memset (&trace, 0, sizeof(trace_t));
+	trace.fraction = 1;
+	trace.allsolid = true;
+	VectorCopy (end, trace.endpos);
+
+	SV_RecursiveHullCheck (cl.worldmodel->hulls, 0, 0, 1, start, end, &trace);
+
+	junk = trace.plane;
+	return &junk;
+}
+
+void Test_Spawn (vec3_t origin)
+{
+	int		i;
+	puff_t	*p;
+	vec3_t	temp;
+	vec3_t	normal;
+	vec3_t	incoming;
+	plane_t	*plane;
+	float	d;
+
+	for (i=0,p=puffs ; i<MAX_PUFFS ; i++,p++)
+	{
+		if (p->length <= 0)
+			break;
+	}
+	if (i == MAX_PUFFS)
+		return;
+
+	VectorSubtract (r_refdef.vieworg, origin, incoming);
+	VectorSubtract (origin, incoming, temp);
+	plane = HitPlane (r_refdef.vieworg, temp);
+
+	VectorNormalize (incoming);
+	d = DotProduct (incoming, plane->normal);
+	VectorSubtract (vec3_origin, incoming, p->reflect);
+	VectorMA (p->reflect, d*2, plane->normal, p->reflect);
+
+	VectorCopy (origin, p->origin);
+	VectorCopy (plane->normal, p->normal);
+
+	CrossProduct (incoming, p->normal, p->up);
+
+	CrossProduct (p->up, p->normal, p->right);
+
+	p->length = 8;
+}
+
+void DrawPuff (puff_t *p)
+{
+	vec3_t	pts[2][3];
+	int		i, j;
+	float	s, d;
+
+	for (i=0 ; i<2 ; i++)
+	{
+		if (i == 1)
+		{
+			s = 6;
+			d = p->length;
+		}
+		else
+		{
+			s = 2;
+			d = 0;
+		}
+
+		for (j=0 ; j<3 ; j++)
+		{
+			pts[i][0][j] = p->origin[j] + p->up[j]*s + p->reflect[j]*d;
+			pts[i][1][j] = p->origin[j] + p->right[j]*s + p->reflect[j]*d;
+			pts[i][2][j] = p->origin[j] + -p->right[j]*s + p->reflect[j]*d;
+		}
+	}
+
+	glColor3f (1, 0, 0);
+
+#if 0
+	glBegin (GL_LINES);
+	glVertex3fv (p->origin);
+	glVertex3f (p->origin[0] + p->length*p->reflect[0],
+		p->origin[1] + p->length*p->reflect[1],
+		p->origin[2] + p->length*p->reflect[2]);
+
+	glVertex3fv (pts[0][0]);
+	glVertex3fv (pts[1][0]);
+
+	glVertex3fv (pts[0][1]);
+	glVertex3fv (pts[1][1]);
+
+	glVertex3fv (pts[0][2]);
+	glVertex3fv (pts[1][2]);
+
+	glEnd ();
+#endif
+
+	glBegin (GL_QUADS);
+	for (i=0 ; i<3 ; i++)
+	{
+		j = (i+1)%3;
+		glVertex3fv (pts[0][j]);
+		glVertex3fv (pts[1][j]);
+		glVertex3fv (pts[1][i]);
+		glVertex3fv (pts[0][i]);
+	}
+	glEnd ();
+
+	glBegin (GL_TRIANGLES);
+	glVertex3fv (pts[1][0]);
+	glVertex3fv (pts[1][1]);
+	glVertex3fv (pts[1][2]);
+	glEnd ();
+
+	p->length -= host_frametime*2;
+}
+
+
+void Test_Draw (void)
+{
+	int		i;
+	puff_t	*p;
+
+	for (i=0, p=puffs ; i<MAX_PUFFS ; i++,p++)
+	{
+		if (p->length > 0)
+			DrawPuff (p);
+	}
+}
+
+#endif
-- 
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