Core/Collision: Port new parts for retrieving area/liquid data from gameobjects added when porting 42f9deb21ec68e169f7ed1c8cf14092f144b22da to 3.3.5

4 files changed, 98 insertions, 0 deletions

diff --git a/src/common/Collision/DynamicTree.cpp b/src/common/Collision/DynamicTree.cpp
index aac78545524..ae215e0db4f 100644
--- a/src/common/Collision/DynamicTree.cpp
+++ b/src/common/Collision/DynamicTree.cpp
@@ -24,6 +24,9 @@
 #include "ModelInstance.h"
 #include "RegularGrid.h"
 #include "Timer.h"
+#include "VMapFactory.h"
+#include "VMapManager2.h"
+#include "WorldModel.h"
 #include <G3D/AABox.h>
 #include <G3D/Ray.h>
 #include <G3D/Vector3.h>
@@ -169,6 +172,25 @@ private:
     VMAP::AreaInfo _areaInfo;
 };
 
+struct DynamicTreeLocationInfoCallback
+{
+    DynamicTreeLocationInfoCallback(PhaseShift const& phaseShift) : _phaseShift(phaseShift), _hitModel(nullptr) {}
+
+    void operator()(G3D::Vector3 const& p, GameObjectModel const& obj)
+    {
+        if (obj.GetLocationInfo(p, _locationInfo, _phaseShift))
+            _hitModel = &obj;
+    }
+
+    VMAP::LocationInfo& GetLocationInfo() { return _locationInfo; }
+    GameObjectModel const* GetHitModel() const { return _hitModel; }
+
+private:
+    PhaseShift const& _phaseShift;
+    VMAP::LocationInfo _locationInfo;
+    GameObjectModel const* _hitModel;
+};
+
 bool DynamicMapTree::getIntersectionTime(G3D::Ray const& ray, G3D::Vector3 const& endPos, PhaseShift const& phaseShift, float& maxDist) const
 {
     float distance = maxDist;
@@ -260,3 +282,24 @@ bool DynamicMapTree::getAreaInfo(float x, float y, float& z, PhaseShift const& p
     }
     return false;
 }
+
+void DynamicMapTree::getAreaAndLiquidData(float x, float y, float z, PhaseShift const& phaseShift, uint8 /*reqLiquidType*/, VMAP::AreaAndLiquidData& /*data*/) const
+{
+    G3D::Vector3 v(x, y, z + 0.5f);
+    DynamicTreeLocationInfoCallback intersectionCallBack(phaseShift);
+    impl->intersectPoint(v, intersectionCallBack);
+    if (intersectionCallBack.GetLocationInfo().hitModel)
+    {/* For future use (needs cherry-pick f6c849729b27b77228704b595de3adaf24da2c10)
+        data.floorZ = intersectionCallBack.GetLocationInfo().ground_Z;
+        uint32 liquidType = intersectionCallBack.GetLocationInfo().hitModel->GetLiquidType();
+        float liquidLevel;
+        if (!reqLiquidType || (dynamic_cast<VMAP::VMapManager2*>(VMAP::VMapFactory::createOrGetVMapManager())->GetLiquidFlagsPtr(liquidType) & reqLiquidType))
+            if (intersectionCallBack.GetHitModel()->GetLiquidLevel(v, intersectionCallBack.GetLocationInfo(), liquidLevel))
+                data.liquidInfo = boost::in_place(liquidType, liquidLevel);
+
+        data.areaInfo = boost::in_place(intersectionCallBack.GetHitModel()->GetNameSetId(),
+            intersectionCallBack.GetLocationInfo().rootId,
+            intersectionCallBack.GetLocationInfo().hitModel->GetWmoID(),
+            intersectionCallBack.GetLocationInfo().hitModel->GetMogpFlags());
+    */}
+}
diff --git a/src/common/Collision/DynamicTree.h b/src/common/Collision/DynamicTree.h
index 75cbf8466f4..5581702a504 100644
--- a/src/common/Collision/DynamicTree.h
+++ b/src/common/Collision/DynamicTree.h
@@ -31,6 +31,11 @@ class GameObjectModel;
 class PhaseShift;
 struct DynTreeImpl;
 
+namespace VMAP
+{
+    struct AreaAndLiquidData;
+}
+
 class TC_COMMON_API DynamicMapTree
 {
     DynTreeImpl *impl;
@@ -46,6 +51,7 @@ public:
 
     float getHeight(float x, float y, float z, float maxSearchDist, PhaseShift const& phaseShift) const;
     bool getAreaInfo(float x, float y, float& z, PhaseShift const& phaseShift, uint32& flags, int32& adtId, int32& rootId, int32& groupId) const;
+    void getAreaAndLiquidData(float x, float y, float z, PhaseShift const& phaseShift, uint8 reqLiquidType, VMAP::AreaAndLiquidData& data) const;
 
     void insert(const GameObjectModel&);
     void remove(const GameObjectModel&);
diff --git a/src/common/Collision/Models/GameObjectModel.cpp b/src/common/Collision/Models/GameObjectModel.cpp
index c1f7f9e1bb1..d81ccee9c5a 100644
--- a/src/common/Collision/Models/GameObjectModel.cpp
+++ b/src/common/Collision/Models/GameObjectModel.cpp
@@ -212,6 +212,51 @@ void GameObjectModel::intersectPoint(G3D::Vector3 const& point, VMAP::AreaInfo&
     }
 }
 
+bool GameObjectModel::GetLocationInfo(G3D::Vector3 const& point, VMAP::LocationInfo& info, PhaseShift const& phaseShift) const
+{
+    if (!isCollisionEnabled() || !owner->IsSpawned() || !isMapObject())
+        return false;
+
+    if (!owner->IsInPhase(phaseShift))
+        return false;
+
+    if (!iBound.contains(point))
+        return false;
+
+    // child bounds are defined in object space:
+    Vector3 pModel = iInvRot * (point - iPos) * iInvScale;
+    Vector3 zDirModel = iInvRot * Vector3(0.f, 0.f, -1.f);
+    float zDist;
+    if (iModel->GetLocationInfo(pModel, zDirModel, zDist, info))
+    {
+        Vector3 modelGround = pModel + zDist * zDirModel;
+        float world_Z = ((modelGround * iInvRot) * iScale + iPos).z;
+        if (info.ground_Z < world_Z)
+        {
+            info.ground_Z = world_Z;
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool GameObjectModel::GetLiquidLevel(G3D::Vector3 const& point, VMAP::LocationInfo& info, float& liqHeight) const
+{
+    // child bounds are defined in object space:
+    Vector3 pModel = iInvRot * (point - iPos) * iInvScale;
+    //Vector3 zDirModel = iInvRot * Vector3(0.f, 0.f, -1.f);
+    float zDist;
+    if (info.hitModel->GetLiquidLevel(pModel, zDist))
+    {
+        // calculate world height (zDist in model coords):
+        // assume WMO not tilted (wouldn't make much sense anyway)
+        liqHeight = zDist * iScale + iPos.z;
+        return true;
+    }
+    return false;
+}
+
 bool GameObjectModel::UpdatePosition()
 {
     if (!iModel)
diff --git a/src/common/Collision/Models/GameObjectModel.h b/src/common/Collision/Models/GameObjectModel.h
index 54453f6987f..38406b12701 100644
--- a/src/common/Collision/Models/GameObjectModel.h
+++ b/src/common/Collision/Models/GameObjectModel.h
@@ -30,6 +30,7 @@ namespace VMAP
 {
     class WorldModel;
     struct AreaInfo;
+    struct LocationInfo;
     enum class ModelIgnoreFlags : uint32;
 }
 
@@ -68,9 +69,12 @@ public:
     void enableCollision(bool enable) { _collisionEnabled = enable; }
     bool isCollisionEnabled() const { return _collisionEnabled; }
     bool isMapObject() const { return isWmo; }
+    uint8 GetNameSetId() const { return owner->GetNameSetId(); }
 
     bool intersectRay(G3D::Ray const& ray, float& maxDist, bool stopAtFirstHit, PhaseShift const& phaseShift, VMAP::ModelIgnoreFlags ignoreFlags) const;
     void intersectPoint(G3D::Vector3 const& point, VMAP::AreaInfo& info, PhaseShift const& phaseShift) const;
+    bool GetLocationInfo(G3D::Vector3 const& point, VMAP::LocationInfo& info, PhaseShift const& phaseShift) const;
+    bool GetLiquidLevel(G3D::Vector3 const& point, VMAP::LocationInfo& info, float& liqHeight) const;
 
     static GameObjectModel* Create(std::unique_ptr<GameObjectModelOwnerBase> modelOwner, std::string const& dataPath);