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138 lines
6.4 KiB
138 lines
6.4 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program 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 3 of the License, or |
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(at your option) any later version. |
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This program 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 this program. If not, see <http://www.gnu.org/licenses/>. |
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Additional permissions under GNU GPL version 3 section 7 |
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If you modify this Program, or any covered work, by linking or |
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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, |
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NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent |
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JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK |
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(or a modified version of those libraries), |
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, |
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PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG |
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JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the |
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licensors of this Program grant you additional |
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permission to convey the resulting work. Corresponding Source for a |
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non-source form of such a combination shall include the source code for |
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the parts of OpenSSL and IJG JPEG Library used as well as that of the covered |
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work. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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#ifndef plIsect_inc |
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#define plIsect_inc |
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struct hsPoint3; |
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struct hsVector3; |
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class plClosest |
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{ |
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public: |
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enum plClosestClampFlags |
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{ |
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kClampLower0 = 0x1, |
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kClampUpper0 = 0x2, |
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kClamp0 = kClampLower0 | kClampUpper0, |
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kClampLower1 = 0x4, |
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kClampLower = kClampLower0 | kClampLower1, |
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kClampUpper1 = 0x8, |
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kClampUpper = kClampUpper0 | kClampUpper1, |
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kClamp1 = kClampLower1 | kClampUpper1, |
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kClamp = kClamp0 | kClamp1 |
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}; |
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// Return clamp flags for where clamped |
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static uint32_t PointOnLine(const hsPoint3& p0, // Point |
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const hsPoint3& p1, const hsVector3& v1, // Line |
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hsPoint3& cp, // Output closest point on line to p0 |
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uint32_t clamp); // Clamp on ends of segment (use Lower1/Upper1) |
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// Return clamp flags for where clamped |
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static uint32_t PointsOnLines(const hsPoint3& p0, const hsVector3& v0,// First line |
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const hsPoint3& p1, const hsVector3& v1, // Second line |
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hsPoint3& cp0, // Output closest on line0 to line1 |
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hsPoint3& cp1, // Output closest on line1 to line0 |
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uint32_t clamp); // Clamp on ends |
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// Return true if p0 is inside or on sphere. |
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static bool PointOnSphere(const hsPoint3& p0, // Point |
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const hsPoint3& center, float rad, // Sphere |
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hsPoint3& cp); // Output closest on sphere to p0 |
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// Return true if p0 is inside box. |
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static bool PointOnBox(const hsPoint3& p0, // Point |
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const hsPoint3& corner, // Box defined by corner point and 3 (presumably but |
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const hsVector3& axis0, // not required) ortho axes. |
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const hsVector3& axis1, |
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const hsVector3& axis2, |
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hsPoint3& cp); |
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// Return true if line intersects or is inside sphere. |
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static bool PointOnSphere(const hsPoint3& p0, const hsVector3& v0, // Line |
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const hsPoint3& center, float rad, // Sphere |
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hsPoint3& cp, // Output closest on sphere to p0, or entry point if line hits sphere |
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uint32_t clamp); |
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// Return true if line intersects or is inside box. |
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static bool PointOnBox(const hsPoint3& p0, const hsVector3& v0, // Line |
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const hsPoint3& corner, // Box defined by corner point and 3 (presumably but |
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const hsVector3& axis0, // not required) ortho axes. |
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const hsVector3& axis1, |
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const hsVector3& axis2, |
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hsPoint3& cp, |
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uint32_t clamp); |
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// Return true if point inside (negative side) of plane |
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static bool PointOnPlane(const hsPoint3& p0, |
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const hsPoint3& pPln, const hsVector3& n, |
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hsPoint3& cp); |
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// Return true if line passes through plane. |
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static bool PointOnPlane(const hsPoint3& p0, const hsVector3& v0, |
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const hsPoint3& pPln, const hsVector3& n, |
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hsPoint3& cp, |
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uint32_t clamp); |
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// Two identical functions, just different wrapping. First version repacks |
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// parameters and calls second. |
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static bool PointBetweenBoxes(const hsPoint3& aCorner, |
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const hsVector3& aAxis0, |
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const hsVector3& aAxis1, |
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const hsVector3& aAxis2, |
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const hsPoint3& bCorner, |
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const hsVector3& bAxis0, |
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const hsVector3& bAxis1, |
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const hsVector3& bAxis2, |
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hsPoint3& cp0, hsPoint3& cp1); |
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static bool PointBetweenBoxes(const hsPoint3& aCorner, |
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const hsVector3* aAxes[3], |
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const hsPoint3& bCorner, |
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const hsVector3* bAxes[3], |
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hsPoint3& cp0, hsPoint3& cp1); |
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}; |
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#endif // plVolume_inc
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