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145 lines
4.1 KiB
C++
145 lines
4.1 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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// Description : Hit testing for editor viewport operations
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#ifndef CRYINCLUDE_EDITOR_INCLUDE_HITCONTEXT_H
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#define CRYINCLUDE_EDITOR_INCLUDE_HITCONTEXT_H
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#pragma once
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class CGizmo;
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class CBaseObject;
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struct IDisplayViewport;
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class CDeepSelection;
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struct AABB;
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class CCamera;
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#include <QRect>
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#include <platform.h>
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//! Flags used in HitContext for nSubObjFlags member.
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enum ESubObjHitFlags
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{
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//! When set all hit elements will be selected.
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SO_HIT_SELECT = BIT(1),
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//! Only test selected elements for hit.
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SO_HIT_TEST_SELECTED = BIT(2),
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//! Only hit test point2d, not rectangle
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//! Will only test/select 1 closest element
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SO_HIT_POINT = BIT(3),
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//! Adds hit elements to previously selected ones.
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SO_HIT_SELECT_ADD = BIT(4),
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//! Remove hit elements from previously selected ones.
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SO_HIT_SELECT_REMOVE = BIT(5),
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//! Output flag, set if selection was changed.
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SO_HIT_SELECTION_CHANGED = BIT(6),
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//! Hit testing to highlight sub object-element.
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SO_HIT_HIGHLIGHT_ONLY = BIT(7),
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//! This hit test is not for editing sub-objects.
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//! (ex. for moving an object by its face-normal)
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SO_HIT_NO_EDIT = BIT(8),
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// Check hit with vertices.
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SO_HIT_ELEM_VERTEX = BIT(10),
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// Check hit with edges.
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SO_HIT_ELEM_EDGE = BIT(11),
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// Check hit with faces.
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SO_HIT_ELEM_FACE = BIT(12),
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// Check hit with polygons.
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SO_HIT_ELEM_POLYGON = BIT(13)
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};
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#define SO_HIT_ELEM_ALL (SO_HIT_ELEM_VERTEX | SO_HIT_ELEM_EDGE | SO_HIT_ELEM_FACE | SO_HIT_ELEM_POLYGON)
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//! Collision structure passed to HitTest function.
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struct HitContext
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{
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//! Viewport that originates hit testing.
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IDisplayViewport* view;
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//! 2D point on view that is used for hit testing.
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QPoint point2d;
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//! 2D Selection rectangle (Only when HitTestRect)
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QRect rect;
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//! Optional limiting bounding box for hit testing.
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AABB* bounds;
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//! Optional camera for culling perspective viewports.
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CCamera* camera;
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//! Testing performed in 2D viewport.
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bool b2DViewport;
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//! True if axis collision must be ignored.
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bool bIgnoreAxis;
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//! Hit test only gizmo objects
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bool bOnlyGizmo;
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//! Test objects using advanced selection helpers.
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bool bUseSelectionHelpers;
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//! an object excluded in hittest.
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CBaseObject* pExcludedObject;
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// Input parameters.
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//! Ray origin.
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Vec3 raySrc;
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//! Ray direction.
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Vec3 rayDir;
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//! Relaxation parameter for hit testing.
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float distanceTolerance;
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//! Sub object hit testing flags, @see ESubObjHitFlags
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int nSubObjFlags;
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// Output parameters.
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//! true if this hit should have less priority then non weak hits.
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//! (exp: Ray hit entity bounding box but not entity geometry.)
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bool weakHit;
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//! constrain axis if hit AxisGizmo.
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int axis;
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//! if hit axis gizmo, 1 - move mode, 2 - rotate mode, 3 - scale mode, 4 - rotate circle mode
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int manipulatorMode;
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//! distance to the object from src.
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float dist;
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//! object that have been hit.
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CBaseObject* object;
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//! gizmo object that have been hit.
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CGizmo* gizmo;
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//! for deep selection mode
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CDeepSelection* pDeepSelection;
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//! For linking tool
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const char* name;
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//! true if this hit was from the object icon
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bool iconHit;
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HitContext()
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{
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rect = QRect();
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b2DViewport = false;
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view = 0;
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camera = 0;
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point2d = QPoint();
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axis = 0;
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distanceTolerance = 0;
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raySrc(0, 0, 0);
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rayDir(0, 0, 0);
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dist = 0;
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object = 0;
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weakHit = false;
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manipulatorMode = 0;
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nSubObjFlags = 0;
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bounds = 0;
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bIgnoreAxis = false;
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bOnlyGizmo = false;
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bUseSelectionHelpers = false;
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pDeepSelection = 0;
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name = nullptr;
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iconHit = false;
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}
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};
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#endif // CRYINCLUDE_EDITOR_INCLUDE_HITCONTEXT_H
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