/* Copyright (C) 2001-2006, William Joseph. All Rights Reserved. This file is part of GtkRadiant. GtkRadiant 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. GtkRadiant 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 GtkRadiant; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #if !defined( INCLUDED_ANGLE_H ) #define INCLUDED_ANGLE_H #include "ientity.h" #include "math/quaternion.h" #include "generic/callback.h" #include "stringio.h" const float ANGLEKEY_IDENTITY = 0; inline void default_angle(float &angle) { angle = ANGLEKEY_IDENTITY; } inline void normalise_angle(float &angle) { angle = static_cast( float_mod(angle, 360.0)); } inline void read_angle(float &angle, const char *value) { if (!string_parse_float(value, angle)) { angle = 0; } else { normalise_angle(angle); } } inline void write_angle(float angle, Entity *entity) { if (angle == 0) { entity->setKeyValue("angle", ""); } else { char value[64]; sprintf(value, "%f", angle); entity->setKeyValue("angle", value); } } class AngleKey { Callback m_angleChanged; public: float m_angle; AngleKey(const Callback &angleChanged) : m_angleChanged(angleChanged), m_angle(ANGLEKEY_IDENTITY) { } void angleChanged(const char *value) { read_angle(m_angle, value); m_angleChanged(); } typedef MemberCaller AngleChangedCaller; void write(Entity *entity) const { write_angle(m_angle, entity); } }; inline float angle_rotated(float angle, const Quaternion &rotation) { return matrix4_get_rotation_euler_xyz_degrees( matrix4_multiplied_by_matrix4( matrix4_rotation_for_z_degrees(angle), matrix4_rotation_for_quaternion_quantised(rotation) ) ).z(); } #endif