mirror of https://github.com/TTimo/GtkRadiant.git
260 lines
8.3 KiB
C++
260 lines
8.3 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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#if !defined(INCLUDED_DRAGPLANES_H)
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#define INCLUDED_DRAGPLANES_H
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#include "selectable.h"
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#include "selectionlib.h"
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#include "math/aabb.h"
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#include "math/line.h"
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// local must be a pure rotation
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inline Vector3 translation_to_local(const Vector3& translation, const Matrix4& local)
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{
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return matrix4_get_translation_vec3(
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matrix4_multiplied_by_matrix4(
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matrix4_translated_by_vec3(matrix4_transposed(local), translation),
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local
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)
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);
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}
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// local must be a pure rotation
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inline Vector3 translation_from_local(const Vector3& translation, const Matrix4& local)
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{
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return matrix4_get_translation_vec3(
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matrix4_multiplied_by_matrix4(
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matrix4_translated_by_vec3(local, translation),
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matrix4_transposed(local)
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)
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);
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}
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class DragPlanes
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{
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public:
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ObservedSelectable m_selectable_right; // +x
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ObservedSelectable m_selectable_left; // -x
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ObservedSelectable m_selectable_front; // +y
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ObservedSelectable m_selectable_back; // -y
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ObservedSelectable m_selectable_top; // +z
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ObservedSelectable m_selectable_bottom; // -z
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AABB m_bounds;
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DragPlanes(const SelectionChangeCallback& onchanged) :
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m_selectable_right(onchanged),
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m_selectable_left(onchanged),
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m_selectable_front(onchanged),
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m_selectable_back(onchanged),
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m_selectable_top(onchanged),
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m_selectable_bottom(onchanged)
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{
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}
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bool isSelected() const
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{
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return m_selectable_right.isSelected()
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|| m_selectable_left.isSelected()
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|| m_selectable_front.isSelected()
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|| m_selectable_back.isSelected()
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|| m_selectable_top.isSelected()
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|| m_selectable_bottom.isSelected();
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}
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void setSelected(bool selected)
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{
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m_selectable_right.setSelected(selected);
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m_selectable_left.setSelected(selected);
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m_selectable_front.setSelected(selected);
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m_selectable_back.setSelected(selected);
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m_selectable_top.setSelected(selected);
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m_selectable_bottom.setSelected(selected);
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}
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void selectPlanes(const AABB& aabb, Selector& selector, SelectionTest& test, const PlaneCallback& selectedPlaneCallback, const Matrix4& rotation = g_matrix4_identity)
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{
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Line line(test.getNear(), test.getFar());
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Vector3 corners[8];
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aabb_corners_oriented(aabb, rotation, corners);
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Plane3 planes[6];
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aabb_planes_oriented(aabb, rotation, planes);
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for(Vector3* i = corners; i != corners + 8; ++i)
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{
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*i = vector3_subtracted(line_closest_point(line, *i), *i);
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}
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if(vector3_dot(planes[0].normal(), corners[1]) > 0
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&& vector3_dot(planes[0].normal(), corners[2]) > 0
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&& vector3_dot(planes[0].normal(), corners[5]) > 0
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&& vector3_dot(planes[0].normal(), corners[6]) > 0)
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{
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Selector_add(selector, m_selectable_right);
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selectedPlaneCallback(planes[0]);
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//globalOutputStream() << "right\n";
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}
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if(vector3_dot(planes[1].normal(), corners[0]) > 0
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&& vector3_dot(planes[1].normal(), corners[3]) > 0
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&& vector3_dot(planes[1].normal(), corners[4]) > 0
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&& vector3_dot(planes[1].normal(), corners[7]) > 0)
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{
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Selector_add(selector, m_selectable_left);
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selectedPlaneCallback(planes[1]);
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//globalOutputStream() << "left\n";
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}
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if(vector3_dot(planes[2].normal(), corners[0]) > 0
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&& vector3_dot(planes[2].normal(), corners[1]) > 0
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&& vector3_dot(planes[2].normal(), corners[4]) > 0
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&& vector3_dot(planes[2].normal(), corners[5]) > 0)
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{
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Selector_add(selector, m_selectable_front);
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selectedPlaneCallback(planes[2]);
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//globalOutputStream() << "front\n";
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}
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if(vector3_dot(planes[3].normal(), corners[2]) > 0
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&& vector3_dot(planes[3].normal(), corners[3]) > 0
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&& vector3_dot(planes[3].normal(), corners[6]) > 0
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&& vector3_dot(planes[3].normal(), corners[7]) > 0)
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{
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Selector_add(selector, m_selectable_back);
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selectedPlaneCallback(planes[3]);
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//globalOutputStream() << "back\n";
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}
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if(vector3_dot(planes[4].normal(), corners[0]) > 0
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&& vector3_dot(planes[4].normal(), corners[1]) > 0
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&& vector3_dot(planes[4].normal(), corners[2]) > 0
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&& vector3_dot(planes[4].normal(), corners[3]) > 0)
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{
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Selector_add(selector, m_selectable_top);
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selectedPlaneCallback(planes[4]);
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//globalOutputStream() << "top\n";
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}
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if(vector3_dot(planes[5].normal(), corners[4]) > 0
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&& vector3_dot(planes[5].normal(), corners[5]) > 0
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&& vector3_dot(planes[5].normal(), corners[6]) > 0
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&& vector3_dot(planes[5].normal(), corners[7]) > 0)
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{
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Selector_add(selector, m_selectable_bottom);
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selectedPlaneCallback(planes[5]);
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//globalOutputStream() << "bottom\n";
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}
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m_bounds = aabb;
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}
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void selectReversedPlanes(const AABB& aabb, Selector& selector, const SelectedPlanes& selectedPlanes, const Matrix4& rotation = g_matrix4_identity)
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{
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Plane3 planes[6];
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aabb_planes_oriented(aabb, rotation, planes);
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if(selectedPlanes.contains(plane3_flipped(planes[0])))
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{
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Selector_add(selector, m_selectable_right);
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}
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if(selectedPlanes.contains(plane3_flipped(planes[1])))
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{
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Selector_add(selector, m_selectable_left);
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}
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if(selectedPlanes.contains(plane3_flipped(planes[2])))
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{
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Selector_add(selector, m_selectable_front);
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}
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if(selectedPlanes.contains(plane3_flipped(planes[3])))
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{
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Selector_add(selector, m_selectable_back);
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}
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if(selectedPlanes.contains(plane3_flipped(planes[4])))
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{
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Selector_add(selector, m_selectable_top);
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}
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if(selectedPlanes.contains(plane3_flipped(planes[5])))
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{
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Selector_add(selector, m_selectable_bottom);
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}
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}
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AABB evaluateResize(const Vector3& translation) const
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{
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Vector3 min = m_bounds.origin - m_bounds.extents;
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Vector3 max = m_bounds.origin + m_bounds.extents;
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if(m_bounds.extents[0] != 0)
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{
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if(m_selectable_right.isSelected())
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{
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max[0] += translation[0];
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//globalOutputStream() << "moving right\n";
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}
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if(m_selectable_left.isSelected())
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{
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min[0] += translation[0];
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//globalOutputStream() << "moving left\n";
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}
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}
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if(m_bounds.extents[1] != 0)
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{
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if(m_selectable_front.isSelected())
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{
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max[1] += translation[1];
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//globalOutputStream() << "moving front\n";
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}
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if(m_selectable_back.isSelected())
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{
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min[1] += translation[1];
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//globalOutputStream() << "moving back\n";
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}
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}
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if(m_bounds.extents[2] != 0)
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{
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if(m_selectable_top.isSelected())
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{
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max[2] += translation[2];
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//globalOutputStream() << "moving top\n";
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}
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if(m_selectable_bottom.isSelected())
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{
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min[2] += translation[2];
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//globalOutputStream() << "moving bottom\n";
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}
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}
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return AABB(vector3_mid(min, max), vector3_scaled(vector3_subtracted(max, min), 0.5));
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}
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AABB evaluateResize(const Vector3& translation, const Matrix4& rotation) const
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{
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AABB aabb(evaluateResize(translation_to_local(translation, rotation)));
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aabb.origin = m_bounds.origin + translation_from_local(aabb.origin - m_bounds.origin, rotation);
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return aabb;
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}
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Matrix4 evaluateTransform(const Vector3& translation) const
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{
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AABB aabb(evaluateResize(translation));
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Vector3 scale(
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m_bounds.extents[0] != 0 ? aabb.extents[0] / m_bounds.extents[0] : 1,
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m_bounds.extents[1] != 0 ? aabb.extents[1] / m_bounds.extents[1] : 1,
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m_bounds.extents[2] != 0 ? aabb.extents[2] / m_bounds.extents[2] : 1
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);
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Matrix4 matrix(matrix4_translation_for_vec3(aabb.origin - m_bounds.origin));
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matrix4_pivoted_scale_by_vec3(matrix, scale, m_bounds.origin);
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return matrix;
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}
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};
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#endif
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