From d84990be85a0041c66effb8d622853adb408d286 Mon Sep 17 00:00:00 2001
From: scrawl <scrawl@baseoftrash.de>
Date: Sun, 24 May 2015 03:59:22 +0200
Subject: [PATCH] Restore getCollisions

---
 apps/openmw/mwphysics/physicssystem.cpp | 32 +++++++++++++++++++++++--
 apps/openmw/mwphysics/physicssystem.hpp |  2 +-
 apps/openmw/mwworld/worldimp.cpp        | 14 +++++------
 3 files changed, 37 insertions(+), 11 deletions(-)

diff --git a/apps/openmw/mwphysics/physicssystem.cpp b/apps/openmw/mwphysics/physicssystem.cpp
index b32ac2f52c..065be083df 100644
--- a/apps/openmw/mwphysics/physicssystem.cpp
+++ b/apps/openmw/mwphysics/physicssystem.cpp
@@ -758,9 +758,37 @@ namespace MWPhysics
         return std::make_pair(false, osg::Vec3f());
     }
 
-    std::vector<std::string> PhysicsSystem::getCollisions(const MWWorld::Ptr &ptr, int collisionGroup, int collisionMask)
+    class ContactTestResultCallback : public btCollisionWorld::ContactResultCallback
     {
-        return std::vector<std::string>();//mEngine->getCollisions(ptr.getRefData().getBaseNodeOld()->getName(), collisionGroup, collisionMask);
+    public:
+        std::vector<MWWorld::Ptr> mResult;
+
+        virtual	btScalar addSingleResult(btManifoldPoint& cp,
+                                            const btCollisionObjectWrapper* colObj0Wrap,int partId0,int index0,
+                                            const btCollisionObjectWrapper* colObj1Wrap,int partId1,int index1)
+        {
+            const PtrHolder* holder = static_cast<const PtrHolder*>(colObj0Wrap->m_collisionObject->getUserPointer());
+            if (holder)
+                mResult.push_back(holder->getPtr());
+            return 0.f;
+        }
+    };
+
+    std::vector<MWWorld::Ptr> PhysicsSystem::getCollisions(const MWWorld::Ptr &ptr, int collisionGroup, int collisionMask)
+    {
+        btCollisionObject* me = NULL;
+
+        ObjectMap::iterator found = mObjects.find(ptr);
+        if (found != mObjects.end())
+            me = found->second->getCollisionObject();
+        else
+            return std::vector<MWWorld::Ptr>();
+
+        ContactTestResultCallback resultCallback;
+        resultCallback.m_collisionFilterGroup = collisionGroup;
+        resultCallback.m_collisionFilterMask = collisionMask;
+        mDynamicsWorld->contactTest(me, resultCallback);
+        return resultCallback.mResult;
     }
 
     osg::Vec3f PhysicsSystem::traceDown(const MWWorld::Ptr &ptr, float maxHeight)
diff --git a/apps/openmw/mwphysics/physicssystem.hpp b/apps/openmw/mwphysics/physicssystem.hpp
index aca24105ed..2ebe16e3bd 100644
--- a/apps/openmw/mwphysics/physicssystem.hpp
+++ b/apps/openmw/mwphysics/physicssystem.hpp
@@ -77,7 +77,7 @@ namespace MWPhysics
 
             void stepSimulation(float dt);
 
-            std::vector<std::string> getCollisions(const MWWorld::Ptr &ptr, int collisionGroup, int collisionMask); ///< get handles this object collides with
+            std::vector<MWWorld::Ptr> getCollisions(const MWWorld::Ptr &ptr, int collisionGroup, int collisionMask); ///< get handles this object collides with
             osg::Vec3f traceDown(const MWWorld::Ptr &ptr, float maxHeight);
 
             std::pair<MWWorld::Ptr, osg::Vec3f> getHitContact(const MWWorld::Ptr& actor,
diff --git a/apps/openmw/mwworld/worldimp.cpp b/apps/openmw/mwworld/worldimp.cpp
index 5689b12cc0..57b8b67a4d 100644
--- a/apps/openmw/mwworld/worldimp.cpp
+++ b/apps/openmw/mwworld/worldimp.cpp
@@ -48,6 +48,7 @@
 
 #include "../mwphysics/physicssystem.hpp"
 #include "../mwphysics/actor.hpp"
+#include "../mwphysics/collisiontype.hpp"
 
 #include "player.hpp"
 #include "manualref.hpp"
@@ -1420,7 +1421,6 @@ namespace MWWorld
 
     void World::processDoors(float duration)
     {
-#if 0
         std::map<MWWorld::Ptr, int>::iterator it = mDoorStates.begin();
         while (it != mDoorStates.end())
         {
@@ -1433,19 +1433,18 @@ namespace MWWorld
             }
             else
             {
-                float oldRot = Ogre::Radian(it->first.getRefData().getLocalRotation().rot[2]).valueDegrees();
-                float diff = duration * 90;
+                float oldRot = osg::RadiansToDegrees(it->first.getRefData().getLocalRotation().rot[2]);
+                float diff = duration * 90.f;
                 float targetRot = std::min(std::max(0.f, oldRot + diff * (it->second == 1 ? 1 : -1)), 90.f);
                 localRotateObject(it->first, 0, 0, targetRot);
 
                 bool reached = (targetRot == 90.f && it->second) || targetRot == 0.f;
 
                 /// \todo should use convexSweepTest here
-                std::vector<std::string> collisions = mPhysics->getCollisions(it->first, OEngine::Physic::CollisionType_Actor
-                                                                              , OEngine::Physic::CollisionType_Actor);
-                for (std::vector<std::string>::iterator cit = collisions.begin(); cit != collisions.end(); ++cit)
+                std::vector<MWWorld::Ptr> collisions = mPhysics->getCollisions(it->first, MWPhysics::CollisionType_Actor, MWPhysics::CollisionType_Actor);
+                for (std::vector<MWWorld::Ptr>::iterator cit = collisions.begin(); cit != collisions.end(); ++cit)
                 {
-                    MWWorld::Ptr ptr = getPtrViaHandle(*cit);
+                    MWWorld::Ptr ptr = *cit;
                     if (ptr.getClass().isActor())
                     {
                         // Collided with actor, ask actor to try to avoid door
@@ -1471,7 +1470,6 @@ namespace MWWorld
                     ++it;
             }
         }
-#endif
     }
 
     bool World::toggleCollisionMode()