diff options
Diffstat (limited to 'code/splines/math_vector.cpp')
| -rwxr-xr-x | code/splines/math_vector.cpp | 288 |
1 files changed, 144 insertions, 144 deletions
diff --git a/code/splines/math_vector.cpp b/code/splines/math_vector.cpp index a39d859..baa93d3 100755 --- a/code/splines/math_vector.cpp +++ b/code/splines/math_vector.cpp @@ -1,144 +1,144 @@ -/*
-===========================================================================
-Copyright (C) 1999-2005 Id Software, Inc.
-
-This file is part of Quake III Arena source code.
-
-Quake III Arena source code 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.
-
-Quake III Arena source code 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 Foobar; if not, write to the Free Software
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
-===========================================================================
-*/
-//#include "../game/q_shared.h"
-#include "math_vector.h"
-#include <assert.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include <ctype.h>
-
-#define M_PI 3.14159265358979323846 // matches value in gcc v2 math.h
-
-#define LERP_DELTA 1e-6
-
-idVec3_t vec_zero( 0.0f, 0.0f, 0.0f );
-
-Bounds boundsZero;
-
-float idVec3_t::toYaw( void ) {
- float yaw;
-
- if ( ( y == 0 ) && ( x == 0 ) ) {
- yaw = 0;
- } else {
- yaw = atan2( y, x ) * 180 / M_PI;
- if ( yaw < 0 ) {
- yaw += 360;
- }
- }
-
- return yaw;
-}
-
-float idVec3_t::toPitch( void ) {
- float forward;
- float pitch;
-
- if ( ( x == 0 ) && ( y == 0 ) ) {
- if ( z > 0 ) {
- pitch = 90;
- } else {
- pitch = 270;
- }
- } else {
- forward = ( float )idSqrt( x * x + y * y );
- pitch = atan2( z, forward ) * 180 / M_PI;
- if ( pitch < 0 ) {
- pitch += 360;
- }
- }
-
- return pitch;
-}
-
-/*
-angles_t idVec3_t::toAngles( void ) {
- float forward;
- float yaw;
- float pitch;
-
- if ( ( x == 0 ) && ( y == 0 ) ) {
- yaw = 0;
- if ( z > 0 ) {
- pitch = 90;
- } else {
- pitch = 270;
- }
- } else {
- yaw = atan2( y, x ) * 180 / M_PI;
- if ( yaw < 0 ) {
- yaw += 360;
- }
-
- forward = ( float )idSqrt( x * x + y * y );
- pitch = atan2( z, forward ) * 180 / M_PI;
- if ( pitch < 0 ) {
- pitch += 360;
- }
- }
-
- return angles_t( -pitch, yaw, 0 );
-}
-*/
-
-idVec3_t LerpVector( idVec3_t &w1, idVec3_t &w2, const float t ) {
- float omega, cosom, sinom, scale0, scale1;
-
- cosom = w1 * w2;
- if ( ( 1.0 - cosom ) > LERP_DELTA ) {
- omega = acos( cosom );
- sinom = sin( omega );
- scale0 = sin( ( 1.0 - t ) * omega ) / sinom;
- scale1 = sin( t * omega ) / sinom;
- } else {
- scale0 = 1.0 - t;
- scale1 = t;
- }
-
- return ( w1 * scale0 + w2 * scale1 );
-}
-
-/*
-=============
-idVec3_t::string
-
-This is just a convenience function
-for printing vectors
-=============
-*/
-char *idVec3_t::string( void ) {
- static int index = 0;
- static char str[ 8 ][ 36 ];
- char *s;
-
- // use an array so that multiple toString's won't collide
- s = str[ index ];
- index = (index + 1)&7;
-
- sprintf( s, "%.2f %.2f %.2f", x, y, z );
-
- return s;
-}
+/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. + +This file is part of Quake III Arena source code. + +Quake III Arena source code 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. + +Quake III Arena source code 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 Foobar; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +=========================================================================== +*/ +//#include "../game/q_shared.h" +#include "math_vector.h" +#include <assert.h> +#include <math.h> +#include <stdio.h> +#include <stdarg.h> +#include <string.h> +#include <stdlib.h> +#include <time.h> +#include <ctype.h> + +#define M_PI 3.14159265358979323846 // matches value in gcc v2 math.h + +#define LERP_DELTA 1e-6 + +idVec3_t vec_zero( 0.0f, 0.0f, 0.0f ); + +Bounds boundsZero; + +float idVec3_t::toYaw( void ) { + float yaw; + + if ( ( y == 0 ) && ( x == 0 ) ) { + yaw = 0; + } else { + yaw = atan2( y, x ) * 180 / M_PI; + if ( yaw < 0 ) { + yaw += 360; + } + } + + return yaw; +} + +float idVec3_t::toPitch( void ) { + float forward; + float pitch; + + if ( ( x == 0 ) && ( y == 0 ) ) { + if ( z > 0 ) { + pitch = 90; + } else { + pitch = 270; + } + } else { + forward = ( float )idSqrt( x * x + y * y ); + pitch = atan2( z, forward ) * 180 / M_PI; + if ( pitch < 0 ) { + pitch += 360; + } + } + + return pitch; +} + +/* +angles_t idVec3_t::toAngles( void ) { + float forward; + float yaw; + float pitch; + + if ( ( x == 0 ) && ( y == 0 ) ) { + yaw = 0; + if ( z > 0 ) { + pitch = 90; + } else { + pitch = 270; + } + } else { + yaw = atan2( y, x ) * 180 / M_PI; + if ( yaw < 0 ) { + yaw += 360; + } + + forward = ( float )idSqrt( x * x + y * y ); + pitch = atan2( z, forward ) * 180 / M_PI; + if ( pitch < 0 ) { + pitch += 360; + } + } + + return angles_t( -pitch, yaw, 0 ); +} +*/ + +idVec3_t LerpVector( idVec3_t &w1, idVec3_t &w2, const float t ) { + float omega, cosom, sinom, scale0, scale1; + + cosom = w1 * w2; + if ( ( 1.0 - cosom ) > LERP_DELTA ) { + omega = acos( cosom ); + sinom = sin( omega ); + scale0 = sin( ( 1.0 - t ) * omega ) / sinom; + scale1 = sin( t * omega ) / sinom; + } else { + scale0 = 1.0 - t; + scale1 = t; + } + + return ( w1 * scale0 + w2 * scale1 ); +} + +/* +============= +idVec3_t::string + +This is just a convenience function +for printing vectors +============= +*/ +char *idVec3_t::string( void ) { + static int index = 0; + static char str[ 8 ][ 36 ]; + char *s; + + // use an array so that multiple toString's won't collide + s = str[ index ]; + index = (index + 1)&7; + + sprintf( s, "%.2f %.2f %.2f", x, y, z ); + + return s; +} |