From 7a8fcb55f33db3f72a3639f39676ce4ccf8095a4 Mon Sep 17 00:00:00 2001
From: Bryce Hutchings <niceass@rq3.com>
Date: Mon, 27 May 2002 06:57:16 +0000
Subject: [PATCH] reflection byte function for sparks

---
 reaction/game/q_math.c   | 12 ++++++++++++
 reaction/game/q_shared.h |  5 ++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/reaction/game/q_math.c b/reaction/game/q_math.c
index 9927d1dc..5e9e46c9 100644
--- a/reaction/game/q_math.c
+++ b/reaction/game/q_math.c
@@ -5,6 +5,9 @@
 //-----------------------------------------------------------------------------
 //
 // $Log$
+// Revision 1.6  2002/05/27 06:55:02  niceass
+// reflection byte function for sparks
+//
 // Revision 1.5  2002/01/11 19:48:30  jbravo
 // Formatted the source in non DOS format.
 //
@@ -1298,4 +1301,13 @@ void PerpendicularVector( vec3_t dst, const vec3_t src )
 	VectorNormalize( dst );
 }
 
+// By NiceAss. Used for reflection of sparks on metal surfaces
+int ReflectVectorByte(vec3_t dir, vec3_t plane) {
+	vec3_t	final;
+	float	dot;
 
+	dot = DotProduct( dir, plane );
+	VectorMA( dir, -2*dot, plane, final );
+
+	return DirToByte(final);
+}
\ No newline at end of file
diff --git a/reaction/game/q_shared.h b/reaction/game/q_shared.h
index db6e2a64..5665622c 100644
--- a/reaction/game/q_shared.h
+++ b/reaction/game/q_shared.h
@@ -5,6 +5,9 @@
 //-----------------------------------------------------------------------------
 //
 // $Log$
+// Revision 1.8  2002/05/27 06:57:16  niceass
+// reflection byte function for sparks
+//
 // Revision 1.7  2002/01/11 19:48:30  jbravo
 // Formatted the source in non DOS format.
 //
@@ -765,7 +768,7 @@ void MakeNormalVectors( const vec3_t forward, vec3_t right, vec3_t up );
 void MatrixMultiply(float in1[3][3], float in2[3][3], float out[3][3]);
 void AngleVectors( const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up);
 void PerpendicularVector( vec3_t dst, const vec3_t src );
-
+int ReflectVectorByte(vec3_t dir, vec3_t plane);
 
 //=============================================