Core/Build: Merge common library and move database out of shared

1 files changed, 119 insertions, 0 deletions

diff --git a/src/common/Collision/BoundingIntervalHierarchyWrapper.h b/src/common/Collision/BoundingIntervalHierarchyWrapper.h
new file mode 100644
index 00000000000..60bb6a569df
--- /dev/null
+++ b/src/common/Collision/BoundingIntervalHierarchyWrapper.h
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2008-2015 TrinityCore <http://www.trinitycore.org/>
+ * Copyright (C) 2005-2010 MaNGOS <http://getmangos.com/>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _BIH_WRAP
+#define _BIH_WRAP
+
+#include "G3D/Table.h"
+#include "G3D/Array.h"
+#include "G3D/Set.h"
+#include "BoundingIntervalHierarchy.h"
+
+
+template<class T, class BoundsFunc = BoundsTrait<T> >
+class BIHWrap
+{
+    template<class RayCallback>
+    struct MDLCallback
+    {
+        const T* const* objects;
+        RayCallback& _callback;
+        uint32 objects_size;
+
+        MDLCallback(RayCallback& callback, const T* const* objects_array, uint32 objects_size ) : objects(objects_array), _callback(callback), objects_size(objects_size) { }
+
+        /// Intersect ray
+        bool operator() (const G3D::Ray& ray, uint32 idx, float& maxDist, bool /*stopAtFirst*/)
+        {
+            if (idx >= objects_size)
+                return false;
+            if (const T* obj = objects[idx])
+                return _callback(ray, *obj, maxDist/*, stopAtFirst*/);
+            return false;
+        }
+
+        /// Intersect point
+        void operator() (const G3D::Vector3& p, uint32 idx)
+        {
+            if (idx >= objects_size)
+                return;
+            if (const T* obj = objects[idx])
+                _callback(p, *obj);
+        }
+    };
+
+    typedef G3D::Array<const T*> ObjArray;
+
+    BIH m_tree;
+    ObjArray m_objects;
+    G3D::Table<const T*, uint32> m_obj2Idx;
+    G3D::Set<const T*> m_objects_to_push;
+    int unbalanced_times;
+
+public:
+    BIHWrap() : unbalanced_times(0) { }
+
+    void insert(const T& obj)
+    {
+        ++unbalanced_times;
+        m_objects_to_push.insert(&obj);
+    }
+
+    void remove(const T& obj)
+    {
+        ++unbalanced_times;
+        uint32 Idx = 0;
+        const T * temp;
+        if (m_obj2Idx.getRemove(&obj, temp, Idx))
+            m_objects[Idx] = NULL;
+        else
+            m_objects_to_push.remove(&obj);
+    }
+
+    void balance()
+    {
+        if (unbalanced_times == 0)
+            return;
+
+        unbalanced_times = 0;
+        m_objects.fastClear();
+        m_obj2Idx.getKeys(m_objects);
+        m_objects_to_push.getMembers(m_objects);
+        //assert that m_obj2Idx has all the keys
+
+        m_tree.build(m_objects, BoundsFunc::getBounds2);
+    }
+
+    template<typename RayCallback>
+    void intersectRay(const G3D::Ray& ray, RayCallback& intersectCallback, float& maxDist)
+    {
+        balance();
+        MDLCallback<RayCallback> temp_cb(intersectCallback, m_objects.getCArray(), m_objects.size());
+        m_tree.intersectRay(ray, temp_cb, maxDist, true);
+    }
+
+    template<typename IsectCallback>
+    void intersectPoint(const G3D::Vector3& point, IsectCallback& intersectCallback)
+    {
+        balance();
+        MDLCallback<IsectCallback> callback(intersectCallback, m_objects.getCArray(), m_objects.size());
+        m_tree.intersectPoint(point, callback);
+    }
+};
+
+#endif // _BIH_WRAP