2 Copyright (C) 2001-2006, William Joseph.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #if !defined( INCLUDED_ANGLE_H )
23 #define INCLUDED_ANGLE_H
27 #include "math/quaternion.h"
28 #include "generic/callback.h"
31 const float ANGLEKEY_IDENTITY = 0;
33 inline void default_angle( float& angle ){
34 angle = ANGLEKEY_IDENTITY;
36 inline void normalise_angle( float& angle ){
37 angle = static_cast<float>( float_mod( angle, 360.0 ) );
39 inline void read_angle( float& angle, const char* value ){
40 if ( !string_parse_float( value, angle ) ) {
45 normalise_angle( angle );
48 inline void write_angle( float angle, Entity* entity ){
50 entity->setKeyValue( "angle", "" );
55 sprintf( value, "%f", angle );
56 entity->setKeyValue( "angle", value );
62 Callback<void()> m_angleChanged;
67 AngleKey( const Callback<void()>& angleChanged )
68 : m_angleChanged( angleChanged ), m_angle( ANGLEKEY_IDENTITY ){
71 void angleChanged( const char* value ){
72 read_angle( m_angle, value );
75 typedef MemberCaller<AngleKey, void(const char*), &AngleKey::angleChanged> AngleChangedCaller;
77 void write( Entity* entity ) const {
78 write_angle( m_angle, entity );
82 inline float angle_rotated( float angle, const Quaternion& rotation ){
83 return matrix4_get_rotation_euler_xyz_degrees(
84 matrix4_multiplied_by_matrix4(
85 matrix4_rotation_for_z_degrees( angle ),
86 matrix4_rotation_for_quaternion_quantised( rotation )