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_ROTATION_H )
23 #define INCLUDED_ROTATION_H
27 #include "stream/stringstream.h"
28 #include "math/quaternion.h"
29 #include "generic/callback.h"
34 typedef float Float9[9];
36 inline void default_rotation(Float9 rotation)
49 inline void write_rotation(const Float9 rotation, Entity *entity, const char *key = "rotation")
59 && rotation[8] == 1) {
60 entity->setKeyValue(key, "");
62 StringOutputStream value(256);
63 value << rotation[0] << ' '
72 entity->setKeyValue(key, value.c_str());
76 inline void read_rotation(Float9 rotation, const char *value)
78 if (!string_parse_vector(value, rotation, rotation + 9)) {
79 default_rotation(rotation);
83 inline Matrix4 rotation_toMatrix(const Float9 rotation)
105 inline void rotation_fromMatrix(Float9 rotation, const Matrix4 &matrix)
107 rotation[0] = matrix.xx();
108 rotation[1] = matrix.xy();
109 rotation[2] = matrix.xz();
110 rotation[3] = matrix.yx();
111 rotation[4] = matrix.yy();
112 rotation[5] = matrix.yz();
113 rotation[6] = matrix.zx();
114 rotation[7] = matrix.zy();
115 rotation[8] = matrix.zz();
118 inline void rotation_assign(Float9 rotation, const Float9 other)
120 rotation[0] = other[0];
121 rotation[1] = other[1];
122 rotation[2] = other[2];
123 rotation[3] = other[3];
124 rotation[4] = other[4];
125 rotation[5] = other[5];
126 rotation[6] = other[6];
127 rotation[7] = other[7];
128 rotation[8] = other[8];
131 inline void rotation_rotate(Float9 rotation, const Quaternion &rotate)
133 rotation_fromMatrix(rotation,
134 matrix4_multiplied_by_matrix4(
135 rotation_toMatrix(rotation),
136 matrix4_rotation_for_quaternion_quantised(rotate)
141 inline void read_angle(Float9 rotation, const char *value)
144 if (!string_parse_float(value, angle)) {
145 default_rotation(rotation);
147 rotation_fromMatrix(rotation, matrix4_rotation_for_z_degrees(angle));
152 Callback<void()> m_rotationChanged;
157 RotationKey(const Callback<void()> &rotationChanged)
158 : m_rotationChanged(rotationChanged)
160 default_rotation(m_rotation);
163 void angleChanged(const char *value)
165 read_angle(m_rotation, value);
169 typedef MemberCaller<RotationKey, void(const char *), &RotationKey::angleChanged> AngleChangedCaller;
171 void rotationChanged(const char *value)
173 read_rotation(m_rotation, value);
177 typedef MemberCaller<RotationKey, void(const char *), &RotationKey::rotationChanged> RotationChangedCaller;
179 void write(Entity *entity) const
181 Vector3 euler = matrix4_get_rotation_euler_xyz_degrees(rotation_toMatrix(m_rotation));
182 if (euler[0] == 0 && euler[1] == 0) {
183 entity->setKeyValue("rotation", "");
184 write_angle(euler[2], entity);
186 entity->setKeyValue("angle", "");
187 write_rotation(m_rotation, entity);