Second Life viewer sources 1.13.2.12

1 files changed, 100 insertions, 0 deletions

diff --git a/linden/indra/newview/llbbox.h b/linden/indra/newview/llbbox.h
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+/** 
+ * @file llbbox.h
+ * @brief General purpose bounding box class
+ *
+ * Copyright (c) 2001-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#ifndef LL_BBOX_H
+#define LL_BBOX_H
+
+#include "v3math.h"
+#include "llquaternion.h"
+
+// Note: "local space" for an LLBBox is defined relative to agent space in terms of
+// a translation followed by a rotation.  There is no scale term since the LLBBox's min and 
+// max are not necessarily symetrical and define their own extents.
+
+class LLBBox
+{
+public:
+        LLBBox() {mEmpty = TRUE;}
+        LLBBox( const LLVector3& pos_agent,
+                const LLQuaternion& rot,
+                const LLVector3& min_local,
+                const LLVector3& max_local )
+                :
+                mMinLocal( min_local ), mMaxLocal( max_local ), mPosAgent(pos_agent), mRotation( rot), mEmpty( TRUE )
+                {}
+
+        // Default copy constructor is OK.
+
+        const LLVector3&        getPositionAgent() const                        { return mPosAgent; }
+        const LLQuaternion&     getRotation() const                                     { return mRotation; }
+
+        const LLVector3&        getMinLocal() const                                     { return mMinLocal; }
+        void                            setMinLocal( const LLVector3& min )     { mMinLocal = min; }
+
+        const LLVector3&        getMaxLocal() const                                     { return mMaxLocal; }
+        void                            setMaxLocal( const LLVector3& max )     { mMaxLocal = max; }
+
+        LLVector3                       getCenterLocal() const                          { return (mMaxLocal - mMinLocal) * 0.5f + mMinLocal; }
+        LLVector3                       getCenterAgent() const                          { return localToAgent( getCenterLocal() ); }
+
+        LLVector3                       getExtentLocal() const                          { return mMaxLocal - mMinLocal; }
+
+        BOOL                            containsPointLocal(const LLVector3& p) const;
+        BOOL                            containsPointAgent(const LLVector3& p) const;
+
+        BOOL                            intersects(const LLBBox& b) const;
+
+        void                            addPointAgent(LLVector3 p);
+        void                            addBBoxAgent(const LLBBox& b);
+        
+        void                            addPointLocal(const LLVector3& p);
+        void                            addBBoxLocal(const LLBBox& b) { addPointLocal( b.mMinLocal ); addPointLocal( b.mMaxLocal ); }
+
+        void                            expand( F32 delta );
+
+        LLVector3                       localToAgent( const LLVector3& v ) const;
+        LLVector3                       agentToLocal( const LLVector3& v ) const;
+
+        // Changes rotation but not position
+        LLVector3                       localToAgentBasis(const LLVector3& v) const;
+        LLVector3                       agentToLocalBasis(const LLVector3& v) const;
+
+
+//      friend LLBBox operator*(const LLBBox& a, const LLMatrix4& b);
+
+private:
+        LLVector3                       mMinLocal;
+        LLVector3                       mMaxLocal;
+        LLVector3                       mPosAgent;  // Position relative to Agent's Region
+        LLQuaternion            mRotation;
+        BOOL                            mEmpty;         // Nothing has been added to this bbox yet
+};
+
+//LLBBox operator*(const LLBBox &a, const LLMatrix4 &b);
+
+
+#endif  // LL_BBOX_H