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murdle
339
Minecraft.Client/PS3/PS3Extras/DirectX/DirectXCollision.h
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339
Minecraft.Client/PS3/PS3Extras/DirectX/DirectXCollision.h
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//-------------------------------------------------------------------------------------
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// DirectXCollision.h -- C++ Collision Math library
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-------------------------------------------------------------------------------------
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#ifdef _MSC_VER
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#pragma once
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#endif
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#include "DirectXMath.h"
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namespace DirectX
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{
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enum ContainmentType
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{
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DISJOINT = 0,
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INTERSECTS = 1,
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CONTAINS = 2,
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};
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enum PlaneIntersectionType
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{
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FRONT = 0,
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INTERSECTING = 1,
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BACK = 2,
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};
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struct BoundingBox;
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struct BoundingOrientedBox;
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struct BoundingFrustum;
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#pragma warning(push)
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#pragma warning(disable:4324 4820)
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//-------------------------------------------------------------------------------------
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// Bounding sphere
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//-------------------------------------------------------------------------------------
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struct BoundingSphere
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{
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XMFLOAT3 Center; // Center of the sphere.
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float Radius; // Radius of the sphere.
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// Creators
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BoundingSphere() : Center(0,0,0), Radius( 1.f ) {}
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BoundingSphere( _In_ const XMFLOAT3& center, _In_ float radius )
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: Center(center), Radius(radius) { assert( radius >= 0.f ); };
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BoundingSphere( _In_ const BoundingSphere& sp )
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: Center(sp.Center), Radius(sp.Radius) {}
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// Methods
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BoundingSphere& operator=( _In_ const BoundingSphere& sp ) { Center = sp.Center; Radius = sp.Radius; return *this; }
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void Transform( _Out_ BoundingSphere& Out, _In_ CXMMATRIX M ) const;
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void Transform( _Out_ BoundingSphere& Out, _In_ float Scale, _In_ FXMVECTOR Rotation, _In_ FXMVECTOR Translation ) const;
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// Transform the sphere
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ContainmentType Contains( _In_ FXMVECTOR Point ) const;
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ContainmentType Contains( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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ContainmentType Contains( _In_ const BoundingSphere& sh ) const;
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ContainmentType Contains( _In_ const BoundingBox& box ) const;
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ContainmentType Contains( _In_ const BoundingOrientedBox& box ) const;
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ContainmentType Contains( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ const BoundingSphere& sh ) const;
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bool Intersects( _In_ const BoundingBox& box ) const;
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bool Intersects( _In_ const BoundingOrientedBox& box ) const;
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bool Intersects( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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// Triangle-sphere test
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PlaneIntersectionType Intersects( _In_ FXMVECTOR Plane ) const;
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// Plane-sphere test
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bool Intersects( _In_ FXMVECTOR Origin, _In_ FXMVECTOR Direction, _Out_ float& Dist ) const;
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// Ray-sphere test
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ContainmentType ContainedBy( _In_ FXMVECTOR Plane0, _In_ FXMVECTOR Plane1, _In_ FXMVECTOR Plane2,
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_In_ GXMVECTOR Plane3, _In_ CXMVECTOR Plane4, _In_ CXMVECTOR Plane5 ) const;
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// Test sphere against six planes (see BoundingFrustum::GetPlanes)
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// Static methods
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static void CreateMerged( _Out_ BoundingSphere& Out, _In_ const BoundingSphere& S1, _In_ const BoundingSphere& S2 );
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static void CreateFromBoundingBox( _Out_ BoundingSphere& Out, _In_ const BoundingBox& box );
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static void CreateFromBoundingBox( _Out_ BoundingSphere& Out, _In_ const BoundingOrientedBox& box );
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static void CreateFromPoints( _Out_ BoundingSphere& Out, _In_ size_t Count,
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_In_reads_bytes_(sizeof(XMFLOAT3)+Stride*(Count-1)) const XMFLOAT3* pPoints, _In_ size_t Stride );
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static void CreateFromFrustum( _Out_ BoundingSphere& Out, _In_ const BoundingFrustum& fr );
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};
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//-------------------------------------------------------------------------------------
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// Axis-aligned bounding box
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//-------------------------------------------------------------------------------------
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struct BoundingBox
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{
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static const size_t CORNER_COUNT = 8;
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XMFLOAT3 Center; // Center of the box.
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XMFLOAT3 Extents; // Distance from the center to each side.
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// Creators
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BoundingBox() : Center(0,0,0), Extents( 1.f, 1.f, 1.f ) {}
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BoundingBox( _In_ const XMFLOAT3& center, _In_ const XMFLOAT3& extents )
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: Center(center), Extents(extents) { assert(extents.x >= 0 && extents.y >= 0 && extents.z >= 0); }
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BoundingBox( _In_ const BoundingBox& box ) : Center(box.Center), Extents(box.Extents) {}
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// Methods
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BoundingBox& operator=( _In_ const BoundingBox& box) { Center = box.Center; Extents = box.Extents; return *this; }
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void Transform( _Out_ BoundingBox& Out, _In_ CXMMATRIX M ) const;
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void Transform( _Out_ BoundingBox& Out, _In_ float Scale, _In_ FXMVECTOR Rotation, _In_ FXMVECTOR Translation ) const;
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void GetCorners( _Out_writes_(8) XMFLOAT3* Corners ) const;
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// Gets the 8 corners of the box
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ContainmentType Contains( _In_ FXMVECTOR Point ) const;
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ContainmentType Contains( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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ContainmentType Contains( _In_ const BoundingSphere& sh ) const;
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ContainmentType Contains( _In_ const BoundingBox& box ) const;
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ContainmentType Contains( _In_ const BoundingOrientedBox& box ) const;
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ContainmentType Contains( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ const BoundingSphere& sh ) const;
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bool Intersects( _In_ const BoundingBox& box ) const;
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bool Intersects( _In_ const BoundingOrientedBox& box ) const;
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bool Intersects( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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// Triangle-Box test
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PlaneIntersectionType Intersects( _In_ FXMVECTOR Plane ) const;
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// Plane-box test
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bool Intersects( _In_ FXMVECTOR Origin, _In_ FXMVECTOR Direction, _Out_ float& Dist ) const;
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// Ray-Box test
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ContainmentType ContainedBy( _In_ FXMVECTOR Plane0, _In_ FXMVECTOR Plane1, _In_ FXMVECTOR Plane2,
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_In_ GXMVECTOR Plane3, _In_ CXMVECTOR Plane4, _In_ CXMVECTOR Plane5 ) const;
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// Test box against six planes (see BoundingFrustum::GetPlanes)
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// Static methods
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static void CreateMerged( _Out_ BoundingBox& Out, _In_ const BoundingBox& b1, _In_ const BoundingBox& b2 );
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static void CreateFromSphere( _Out_ BoundingBox& Out, _In_ const BoundingSphere& sh );
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static void CreateFromPoints( _Out_ BoundingBox& Out, _In_ FXMVECTOR pt1, _In_ FXMVECTOR pt2 );
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static void CreateFromPoints( _Out_ BoundingBox& Out, _In_ size_t Count,
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_In_reads_bytes_(sizeof(XMFLOAT3)+Stride*(Count-1)) const XMFLOAT3* pPoints, _In_ size_t Stride );
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};
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//-------------------------------------------------------------------------------------
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// Oriented bounding box
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//-------------------------------------------------------------------------------------
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struct BoundingOrientedBox
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{
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static const size_t CORNER_COUNT = 8;
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XMFLOAT3 Center; // Center of the box.
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XMFLOAT3 Extents; // Distance from the center to each side.
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XMFLOAT4 Orientation; // Unit quaternion representing rotation (box -> world).
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// Creators
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BoundingOrientedBox() : Center(0,0,0), Extents( 1.f, 1.f, 1.f ), Orientation(0,0,0, 1.f ) {}
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BoundingOrientedBox( _In_ const XMFLOAT3& _Center, _In_ const XMFLOAT3& _Extents, _In_ const XMFLOAT4& _Orientation )
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: Center(_Center), Extents(_Extents), Orientation(_Orientation)
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{
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assert(_Extents.x >= 0 && _Extents.y >= 0 && _Extents.z >= 0);
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}
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BoundingOrientedBox( _In_ const BoundingOrientedBox& box )
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: Center(box.Center), Extents(box.Extents), Orientation(box.Orientation) {}
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// Methods
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BoundingOrientedBox& operator=( _In_ const BoundingOrientedBox& box ) { Center = box.Center; Extents = box.Extents; Orientation = box.Orientation; return *this; }
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void Transform( _Out_ BoundingOrientedBox& Out, _In_ CXMMATRIX M ) const;
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void Transform( _Out_ BoundingOrientedBox& Out, _In_ float Scale, _In_ FXMVECTOR Rotation, _In_ FXMVECTOR Translation ) const;
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void GetCorners( _Out_writes_(8) XMFLOAT3* Corners ) const;
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// Gets the 8 corners of the box
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ContainmentType Contains( _In_ FXMVECTOR Point ) const;
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ContainmentType Contains( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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ContainmentType Contains( _In_ const BoundingSphere& sh ) const;
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ContainmentType Contains( _In_ const BoundingBox& box ) const;
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ContainmentType Contains( _In_ const BoundingOrientedBox& box ) const;
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ContainmentType Contains( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ const BoundingSphere& sh ) const;
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bool Intersects( _In_ const BoundingBox& box ) const;
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bool Intersects( _In_ const BoundingOrientedBox& box ) const;
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bool Intersects( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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// Triangle-OrientedBox test
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PlaneIntersectionType Intersects( _In_ FXMVECTOR Plane ) const;
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// Plane-OrientedBox test
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bool Intersects( _In_ FXMVECTOR Origin, _In_ FXMVECTOR Direction, _Out_ float& Dist ) const;
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// Ray-OrientedBox test
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ContainmentType ContainedBy( _In_ FXMVECTOR Plane0, _In_ FXMVECTOR Plane1, _In_ FXMVECTOR Plane2,
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_In_ GXMVECTOR Plane3, _In_ CXMVECTOR Plane4, _In_ CXMVECTOR Plane5 ) const;
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// Test OrientedBox against six planes (see BoundingFrustum::GetPlanes)
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// Static methods
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static void CreateFromBoundingBox( _Out_ BoundingOrientedBox& Out, _In_ const BoundingBox& box );
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static void CreateFromPoints( _Out_ BoundingOrientedBox& Out, _In_ size_t Count,
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_In_reads_bytes_(sizeof(XMFLOAT3)+Stride*(Count-1)) const XMFLOAT3* pPoints, _In_ size_t Stride );
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};
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//-------------------------------------------------------------------------------------
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// Bounding frustum
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//-------------------------------------------------------------------------------------
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struct BoundingFrustum
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{
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static const size_t CORNER_COUNT = 8;
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XMFLOAT3 Origin; // Origin of the frustum (and projection).
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XMFLOAT4 Orientation; // Quaternion representing rotation.
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float RightSlope; // Positive X slope (X/Z).
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float LeftSlope; // Negative X slope.
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float TopSlope; // Positive Y slope (Y/Z).
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float BottomSlope; // Negative Y slope.
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float Near, Far; // Z of the near plane and far plane.
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// Creators
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BoundingFrustum() : Origin(0,0,0), Orientation(0,0,0, 1.f), RightSlope( 1.f ), LeftSlope( -1.f ),
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TopSlope( 1.f ), BottomSlope( -1.f ), Near(0), Far( 1.f ) {}
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BoundingFrustum( _In_ const XMFLOAT3& _Origin, _In_ const XMFLOAT4& _Orientation,
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_In_ float _RightSlope, _In_ float _LeftSlope, _In_ float _TopSlope, _In_ float _BottomSlope,
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_In_ float _Near, _In_ float _Far )
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: Origin(_Origin), Orientation(_Orientation),
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RightSlope(_RightSlope), LeftSlope(_LeftSlope), TopSlope(_TopSlope), BottomSlope(_BottomSlope),
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Near(_Near), Far(_Far) { assert( _Near <= _Far ); }
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BoundingFrustum( _In_ const BoundingFrustum& fr )
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: Origin(fr.Origin), Orientation(fr.Orientation), RightSlope(fr.RightSlope), LeftSlope(fr.LeftSlope),
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TopSlope(fr.TopSlope), BottomSlope(fr.BottomSlope), Near(fr.Near), Far(fr.Far) {}
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BoundingFrustum( _In_ CXMMATRIX Projection ) { CreateFromMatrix( *this, Projection ); }
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// Methods
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BoundingFrustum& operator=( _In_ const BoundingFrustum& fr ) { Origin=fr.Origin; Orientation=fr.Orientation;
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RightSlope=fr.RightSlope; LeftSlope=fr.LeftSlope;
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TopSlope=fr.TopSlope; BottomSlope=fr.BottomSlope;
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Near=fr.Near; Far=fr.Far; return *this; }
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void Transform( _Out_ BoundingFrustum& Out, _In_ CXMMATRIX M ) const;
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void Transform( _Out_ BoundingFrustum& Out, _In_ float Scale, _In_ FXMVECTOR Rotation, _In_ FXMVECTOR Translation ) const;
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void GetCorners( _Out_writes_(8) XMFLOAT3* Corners ) const;
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// Gets the 8 corners of the frustum
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ContainmentType Contains( _In_ FXMVECTOR Point ) const;
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ContainmentType Contains( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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ContainmentType Contains( _In_ const BoundingSphere& sp ) const;
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ContainmentType Contains( _In_ const BoundingBox& box ) const;
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ContainmentType Contains( _In_ const BoundingOrientedBox& box ) const;
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ContainmentType Contains( _In_ const BoundingFrustum& fr ) const;
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// Frustum-Frustum test
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bool Intersects( _In_ const BoundingSphere& sh ) const;
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bool Intersects( _In_ const BoundingBox& box ) const;
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bool Intersects( _In_ const BoundingOrientedBox& box ) const;
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bool Intersects( _In_ const BoundingFrustum& fr ) const;
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bool Intersects( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2 ) const;
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// Triangle-Frustum test
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PlaneIntersectionType Intersects( _In_ FXMVECTOR Plane ) const;
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// Plane-Frustum test
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bool Intersects( _In_ FXMVECTOR Origin, _In_ FXMVECTOR Direction, _Out_ float& Dist ) const;
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// Ray-Frustum test
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ContainmentType ContainedBy( _In_ FXMVECTOR Plane0, _In_ FXMVECTOR Plane1, _In_ FXMVECTOR Plane2,
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_In_ GXMVECTOR Plane3, _In_ CXMVECTOR Plane4, _In_ CXMVECTOR Plane5 ) const;
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// Test frustum against six planes (see BoundingFrustum::GetPlanes)
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void GetPlanes( _Out_opt_ XMVECTOR* NearPlane, _Out_opt_ XMVECTOR* FarPlane, _Out_opt_ XMVECTOR* RightPlane,
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_Out_opt_ XMVECTOR* LeftPlane, _Out_opt_ XMVECTOR* TopPlane, _Out_opt_ XMVECTOR* BottomPlane ) const;
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// Create 6 Planes representation of Frustum
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// Static methods
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static void CreateFromMatrix( _Out_ BoundingFrustum& Out, _In_ CXMMATRIX Projection );
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};
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//-----------------------------------------------------------------------------
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// Triangle intersection testing routines.
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//-----------------------------------------------------------------------------
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namespace TriangleTests
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{
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bool Intersects( _In_ FXMVECTOR Origin, _In_ FXMVECTOR Direction, _In_ FXMVECTOR V0, _In_ GXMVECTOR V1, _In_ CXMVECTOR V2, _Out_ float& Dist );
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// Ray-Triangle
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bool Intersects( _In_ FXMVECTOR A0, _In_ FXMVECTOR A1, _In_ FXMVECTOR A2, _In_ GXMVECTOR B0, _In_ CXMVECTOR B1, _In_ CXMVECTOR B2 );
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// Triangle-Triangle
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PlaneIntersectionType Intersects( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2, _In_ GXMVECTOR Plane );
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// Plane-Triangle
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ContainmentType ContainedBy( _In_ FXMVECTOR V0, _In_ FXMVECTOR V1, _In_ FXMVECTOR V2,
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_In_ GXMVECTOR Plane0, _In_ CXMVECTOR Plane1, _In_ CXMVECTOR Plane2,
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_In_ CXMVECTOR Plane3, _In_ CXMVECTOR Plane4, _In_ CXMVECTOR Plane5 );
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// Test a triangle against six planes at once (see BoundingFrustum::GetPlanes)
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};
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#pragma warning(pop)
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/****************************************************************************
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*
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* Implementation
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*
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****************************************************************************/
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#pragma warning(push)
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#pragma warning(disable : 4068 4616 6001)
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#pragma prefast(push)
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#pragma prefast(disable : 25000, "FXMVECTOR is 16 bytes")
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#include "DirectXCollision.inl"
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#pragma prefast(pop)
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#pragma warning(pop)
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}; // namespace DirectX
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