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https://github.com/Garux/netradiant-custom.git
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85 lines
3.2 KiB
C++
85 lines
3.2 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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#include "grid.h"
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#include "brushmanip.h"
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class DragNewBrush : public Manipulatable
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{
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Vector3 m_0;
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Vector3 m_size;
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float m_setSizeZ; /* store separately for fine square/cube modes handling */
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scene::Node* m_newBrushNode;
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public:
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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_setSizeZ = m_size[0] = m_size[1] = m_size[2] = GetGridSize();
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m_newBrushNode = 0;
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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 diff_raw = point_on_plane( Plane3( g_vector3_axis_z, vector3_dot( g_vector3_axis_z, Vector3( m_size.x(), m_size.y(), m_setSizeZ ) + m_0 ) ), m_view->GetViewMatrix(), device_point ) - m_0;
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const Vector3 xydir( vector3_normalised( Vector3( m_view->GetModelview()[2], m_view->GetModelview()[6], 0 ) ) );
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diff_raw.z() = ( point_on_plane( Plane3( xydir, vector3_dot( xydir, Vector3( m_size.x(), m_size.y(), m_setSizeZ ) + m_0 ) ), m_view->GetViewMatrix(), device_point ) - m_0 ).z();
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Vector3 diff = vector3_snapped( diff_raw, GetSnapGridSize() );
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for ( std::size_t i = 0; i < 3; ++i )
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if( diff[i] == 0 )
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diff[i] = diff_raw[i] < 0? -GetGridSize() : GetGridSize();
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if( g_modifiers.alt() ){ // height adjustment
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diff.x() = m_size.x();
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diff.y() = m_size.y();
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}
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else{
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diff.z() = m_size.z();
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}
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const float z = vector4_projected( matrix4_transformed_vector4( m_view->GetViewMatrix(), Vector4( diff + m_0, 1 ) ) ).z();
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if( z != z || z > 1 ) //catch NAN and behind near, far planes cases
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return;
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if( g_modifiers.shift() || g_modifiers.ctrl() ){ // square or cube
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const float squaresize = std::max( std::fabs( diff.x() ), std::fabs( diff.y() ) );
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diff.x() = std::copysign( squaresize, diff.x() ); //square
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diff.y() = std::copysign( squaresize, diff.y() );
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if( g_modifiers.ctrl() && !g_modifiers.alt() ) //cube
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diff.z() = std::copysign( squaresize, diff.z() );
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}
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m_size = diff;
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if( g_modifiers.alt() )
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m_setSizeZ = diff.z();
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Vector3 mins( m_0 );
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Vector3 maxs( m_0 + diff );
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for ( std::size_t i = 0; i < 3; ++i )
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if( mins[i] > maxs[i] )
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std::swap( mins[i], maxs[i] );
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Scene_BrushResize_Cuboid( m_newBrushNode, aabb_for_minmax( mins, maxs ) );
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}
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void set0( const Vector3& start ){
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m_0 = start;
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}
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};
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