+/*
+Copyright (C) 2003, 2010 - Wolfire Games
+
+This file is part of Lugaru.
+
+Lugaru 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.
+*/
+
#ifndef _QUATERNIONS_H_
#define _QUATERNIONS_H_
//#include "Carbon.h"
#include "math.h"
-#include "Physicsmath.h"
-#include "gl.h"
+#include "PhysicsMath.h"
+#include "gamegl.h"
/**> Quaternion Structures <**/
#define PI 3.14159265355555897932384626
float x;
float y;
float z;
+ XYZ() : x(0.0f), y(0.0f), z(0.0f) {}
inline XYZ operator+(XYZ add);
inline XYZ operator-(XYZ add);
inline XYZ operator*(float add);
float LineFacetd(XYZ *p1,XYZ *p2,XYZ *pa,XYZ *pb,XYZ *pc, XYZ *p);
bool PointInTriangle(Vector *p, Vector normal, float p11, float p12, float p13, float p21, float p22, float p23, float p31, float p32, float p33);
bool LineFacet(Vector p1,Vector p2,Vector pa,Vector pb,Vector pc,Vector *p);
-inline void ReflectVector(XYZ *vel, XYZ *n);
+inline void ReflectVector(XYZ *vel, const XYZ *n);
+inline void ReflectVector(XYZ *vel, const XYZ &n);
inline XYZ DoRotation(XYZ thePoint, float xang, float yang, float zang);
inline XYZ DoRotationRadian(XYZ thePoint, float xang, float yang, float zang);
inline float findDistance(XYZ *point1, XYZ *point2);
inline float findLength(XYZ *point1);
inline float findLengthfast(XYZ *point1);
-inline float findDistancefast(XYZ *point1, XYZ *point2);
-inline float findDistancefast(XYZ point1, XYZ point2);
-inline float findDistancefastflat(XYZ *point1, XYZ *point2);
-inline float dotproduct(XYZ *point1, XYZ *point2);
+inline float distsq(XYZ *point1, XYZ *point2);
+inline float distsq(XYZ point1, XYZ point2);
+inline float distsqflat(XYZ *point1, XYZ *point2);
+inline float dotproduct(const XYZ *point1, const XYZ *point2);
bool sphere_line_intersection (
float x1, float y1 , float z1,
float x2, float y2 , float z2,
inline float fast_sqrt (register float arg)
{
-#ifdef WIN32
- return sqrtf( arg);
-#else
+#if PLATFORM_MACOSX
// Can replace with slower return std::sqrt(arg);
register float result;
result = result + 0.5 * result * (1.0 - arg * result * result);
return result * arg;
+#else
+ return sqrtf( arg);
#endif
}
return returnvalue;
}
-inline void ReflectVector(XYZ *vel, XYZ *n)
+inline void ReflectVector(XYZ *vel, const XYZ *n)
+{
+ ReflectVector(vel, *n);
+}
+
+inline void ReflectVector(XYZ *vel, const XYZ &n)
{
static XYZ vn;
static XYZ vt;
static float dotprod;
- dotprod=dotproduct(n,vel);
- vn.x=n->x*dotprod;
- vn.y=n->y*dotprod;
- vn.z=n->z*dotprod;
+ dotprod=dotproduct(&n,vel);
+ vn.x=n.x*dotprod;
+ vn.y=n.y*dotprod;
+ vn.z=n.z*dotprod;
vt.x=vel->x-vn.x;
vt.y=vel->y-vn.y;
vel->z = vt.z - vn.z;
}
-inline float dotproduct(XYZ *point1, XYZ *point2){
+inline float dotproduct(const XYZ *point1, const XYZ *point2){
static GLfloat returnvalue;
returnvalue=(point1->x*point2->x+point1->y*point2->y+point1->z*point2->z);
return returnvalue;
return((point1->x)*(point1->x)+(point1->y)*(point1->y)+(point1->z)*(point1->z));
}
-inline float findDistancefast(XYZ *point1, XYZ *point2){
+inline float distsq(XYZ *point1, XYZ *point2){
return((point1->x-point2->x)*(point1->x-point2->x)+(point1->y-point2->y)*(point1->y-point2->y)+(point1->z-point2->z)*(point1->z-point2->z));
}
-inline float findDistancefast(XYZ point1, XYZ point2){
+inline float distsq(XYZ point1, XYZ point2){
return((point1.x-point2.x)*(point1.x-point2.x)+(point1.y-point2.y)*(point1.y-point2.y)+(point1.z-point2.z)*(point1.z-point2.z));
}
-inline float findDistancefastflat(XYZ *point1, XYZ *point2){
+inline float distsqflat(XYZ *point1, XYZ *point2){
return((point1->x-point2->x)*(point1->x-point2->x)+(point1->z-point2->z)*(point1->z-point2->z));
}
// This function returns a pointer array which first index indicates
// the number of intersection point, followed by coordinate pairs.
- static float x , y , z;
- static float a, b, c, mu, i ;
+ //~ static float x , y , z;
+ static float a, b, c, /*mu,*/ i ;
if(x1>x3+r&&x2>x3+r)return(0);
if(x1<x3-r&&x2<x3-r)return(0);
// This function returns a pointer array which first index indicates
// the number of intersection point, followed by coordinate pairs.
- static float x , y , z;
- static float a, b, c, mu, i ;
+ //~ static float x , y , z;
+ static float a, b, c, /*mu,*/ i ;
if(p1->x>p3->x+*r&&p2->x>p3->x+*r)return(0);
if(p1->x<p3->x-*r&&p2->x<p3->x-*r)return(0);
return 1;
}
-#endif
\ No newline at end of file
+#endif