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)
48 inline void write_rotation(const Float9 rotation, Entity* entity, const char* key = "rotation")
60 entity->setKeyValue(key, "");
64 StringOutputStream value(256);
65 value << rotation[0] << ' '
74 entity->setKeyValue(key, value.c_str());
77 inline void read_rotation(Float9 rotation, const char* value)
79 if(!string_parse_vector(value, rotation, rotation + 9))
81 default_rotation(rotation);
85 inline Matrix4 rotation_toMatrix(const Float9 rotation)
107 inline void rotation_fromMatrix(Float9 rotation, const Matrix4& matrix)
109 rotation[0] = matrix.xx();
110 rotation[1] = matrix.xy();
111 rotation[2] = matrix.xz();
112 rotation[3] = matrix.yx();
113 rotation[4] = matrix.yy();
114 rotation[5] = matrix.yz();
115 rotation[6] = matrix.zx();
116 rotation[7] = matrix.zy();
117 rotation[8] = matrix.zz();
120 inline void rotation_assign(Float9 rotation, const Float9 other)
122 rotation[0] = other[0];
123 rotation[1] = other[1];
124 rotation[2] = other[2];
125 rotation[3] = other[3];
126 rotation[4] = other[4];
127 rotation[5] = other[5];
128 rotation[6] = other[6];
129 rotation[7] = other[7];
130 rotation[8] = other[8];
133 inline void rotation_rotate(Float9 rotation, const Quaternion& rotate)
135 rotation_fromMatrix(rotation,
136 matrix4_multiplied_by_matrix4(
137 rotation_toMatrix(rotation),
138 matrix4_rotation_for_quaternion_quantised(rotate)
143 inline void read_angle(Float9 rotation, const char* value)
146 if(!string_parse_float(value, angle))
148 default_rotation(rotation);
152 rotation_fromMatrix(rotation, matrix4_rotation_for_z_degrees(angle));
158 Callback m_rotationChanged;
163 RotationKey(const Callback& rotationChanged)
164 : m_rotationChanged(rotationChanged)
166 default_rotation(m_rotation);
169 void angleChanged(const char* value)
171 read_angle(m_rotation, value);
174 typedef MemberCaller1<RotationKey, const char*, &RotationKey::angleChanged> AngleChangedCaller;
176 void rotationChanged(const char* value)
178 read_rotation(m_rotation, value);
181 typedef MemberCaller1<RotationKey, const char*, &RotationKey::rotationChanged> RotationChangedCaller;
183 void write(Entity* entity) const
185 Vector3 euler = matrix4_get_rotation_euler_xyz_degrees(rotation_toMatrix(m_rotation));
186 if(euler[0] == 0 && euler[1] == 0)
188 entity->setKeyValue("rotation", "");
189 write_angle(euler[2], entity);
193 entity->setKeyValue("angle", "");
194 write_rotation(m_rotation, entity);