Engine directory for ticket #1

Engine/source/scene/zones/scenePolyhedralZone.h

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+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _SCENEPOLYHEDRALZONE_H_
+#define _SCENEPOLYHEDRALZONE_H_
+
+#ifndef _SCENESIMPLEZONE_H_
+#include "scene/zones/sceneSimpleZone.h"
+#endif
+
+#ifndef _SCENEPOLYHEDRALOBJECT_H_
+#include "scene/mixin/scenePolyhedralObject.h"
+#endif
+
+#ifndef _MINTERSECTOR_H_
+#include "math/mIntersector.h"
+#endif
+
+
+/// A simple zone space that is described by a polyhedron.
+///
+/// By default, if no other polyhedron is assigned to a polyhedral zone, the
+/// polyhedron is initialized from the zone's object box.
+class ScenePolyhedralZone : public ScenePolyhedralObject< SceneSimpleZone >
+{
+   public:
+
+      typedef ScenePolyhedralObject< SceneSimpleZone > Parent;
+
+   protected:
+
+      typedef PolyhedronBoxIntersector< PolyhedronType > IntersectorType;
+
+      /// Fast polyhedron/AABB intersector used for testing SceneObject AABBs
+      /// for overlap with the zone.
+      IntersectorType mIntersector;
+
+      /// Precompute polyhedron/AABB intersection data.
+      void _updateIntersector()
+      {
+         mIntersector = IntersectorType( getPolyhedron(), getTransform(), getScale(), getWorldBox() );
+      }
+
+      // SceneSimpleZone.
+      virtual void _updateOrientedWorldBox();
+
+   public:
+
+      ScenePolyhedralZone() {}
+      ScenePolyhedralZone( const PolyhedronType& polyhedron );
+
+      // SimObject.
+      virtual bool onAdd();
+
+      // SceneObject.
+      virtual void setTransform( const MatrixF& mat );
+
+      // SceneZoneSpace.
+      virtual bool getOverlappingZones( const Box3F& aabb, U32* outZones, U32& outNumZones );
+};
+
+#endif // !_SCENEPOLYHEDRALZONE_H_