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107 lines
3.8 KiB
C++
107 lines
3.8 KiB
C++
/*
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Copyright (C) 2001-2006, William Joseph.
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All Rights Reserved.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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#include "selection_.h"
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class RotateFree : public Manipulatable
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{
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Vector3 m_start;
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Rotatable& m_rotatable;
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public:
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RotateFree( Rotatable& rotatable )
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: m_rotatable( rotatable ){
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}
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void Construct( const Matrix4& device2manip, const DeviceVector device_point, const AABB& bounds, const Vector3& transform_origin ) override {
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m_start = point_on_sphere( device2manip, device_point );
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vector3_normalise( m_start );
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}
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void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const DeviceVector device_point ) override {
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Vector3 current = point_on_sphere( device2manip, device_point );
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vector3_normalise( current );
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if( g_modifiers.shift() )
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for( std::size_t i = 0; i < 3; ++i )
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if( current[i] == 0 )
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return m_rotatable.rotate( quaternion_for_axisangle( g_vector3_axes[i], float_snapped( angle_for_axis( m_start, current, g_vector3_axes[i] ), static_cast<float>( c_pi / 12.0 ) ) ) );
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m_rotatable.rotate( quaternion_for_unit_vectors( m_start, current ) );
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// m_rotatable.rotate( quaternion_for_sphere_vectors( m_start, current ) ); //wrong math, 2x more sensitive
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}
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};
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class RotateAxis : public Manipulatable
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{
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Vector3 m_axis;
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Vector3 m_start;
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float m_radius;
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bool m_plane_way;
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Plane3 m_plane;
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Vector3 m_origin;
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Rotatable& m_rotatable;
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public:
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RotateAxis( Rotatable& rotatable )
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: m_radius( g_radius ), m_rotatable( rotatable ){
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}
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void Construct( const Matrix4& device2manip, const DeviceVector device_point, const AABB& bounds, const Vector3& transform_origin ) override {
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const float dot = vector3_dot( m_axis, m_view->fill()? vector3_normalised( m_view->getViewer() - transform_origin ) : m_view->getViewDir() );
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m_plane_way = std::fabs( dot ) > 0.1f;
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if( m_plane_way ){
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m_origin = transform_origin;
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m_plane = Plane3( m_axis, vector3_dot( m_axis, m_origin ) );
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m_start = point_on_plane( m_plane, m_view->GetViewMatrix(), device_point ) - m_origin;
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vector3_normalise( m_start );
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}
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else{
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m_start = point_on_sphere( device2manip, device_point, m_radius );
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constrain_to_axis( m_start, m_axis );
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}
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}
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/// \brief Converts current position to a normalised vector orthogonal to axis.
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void Transform( const Matrix4& manip2object, const Matrix4& device2manip, const DeviceVector device_point ) override {
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Vector3 current;
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if( m_plane_way ){
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current = point_on_plane( m_plane, m_view->GetViewMatrix(), device_point ) - m_origin;
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vector3_normalise( current );
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}
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else{
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current = point_on_sphere( device2manip, device_point, m_radius );
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constrain_to_axis( current, m_axis );
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}
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if( g_modifiers.shift() ){
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m_rotatable.rotate( quaternion_for_axisangle( m_axis, float_snapped( angle_for_axis( m_start, current, m_axis ), static_cast<float>( c_pi / 12.0 ) ) ) );
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}
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else{
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m_rotatable.rotate( quaternion_for_axisangle( m_axis, angle_for_axis( m_start, current, m_axis ) ) );
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}
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}
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void SetAxis( const Vector3& axis ){
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m_axis = axis;
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}
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void SetRadius( const float radius ){
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m_radius = radius;
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}
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};
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