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-rw-r--r--src/common/Collision/Models/ModelInstance.cpp222
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diff --git a/src/common/Collision/Models/ModelInstance.cpp b/src/common/Collision/Models/ModelInstance.cpp
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+++ b/src/common/Collision/Models/ModelInstance.cpp
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+/*
+ * 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/>.
+ */
+
+#include "ModelInstance.h"
+#include "WorldModel.h"
+#include "MapTree.h"
+
+using G3D::Vector3;
+using G3D::Ray;
+
+namespace VMAP
+{
+ ModelInstance::ModelInstance(const ModelSpawn &spawn, WorldModel* model): ModelSpawn(spawn), iModel(model)
+ {
+ iInvRot = G3D::Matrix3::fromEulerAnglesZYX(G3D::pif()*iRot.y/180.f, G3D::pif()*iRot.x/180.f, G3D::pif()*iRot.z/180.f).inverse();
+ iInvScale = 1.f/iScale;
+ }
+
+ bool ModelInstance::intersectRay(const G3D::Ray& pRay, float& pMaxDist, bool pStopAtFirstHit) const
+ {
+ if (!iModel)
+ {
+ //std::cout << "<object not loaded>\n";
+ return false;
+ }
+ float time = pRay.intersectionTime(iBound);
+ if (time == G3D::finf())
+ {
+// std::cout << "Ray does not hit '" << name << "'\n";
+
+ return false;
+ }
+// std::cout << "Ray crosses bound of '" << name << "'\n";
+/* std::cout << "ray from:" << pRay.origin().x << ", " << pRay.origin().y << ", " << pRay.origin().z
+ << " dir:" << pRay.direction().x << ", " << pRay.direction().y << ", " << pRay.direction().z
+ << " t/tmax:" << time << '/' << pMaxDist;
+ std::cout << "\nBound lo:" << iBound.low().x << ", " << iBound.low().y << ", " << iBound.low().z << " hi: "
+ << iBound.high().x << ", " << iBound.high().y << ", " << iBound.high().z << std::endl; */
+ // child bounds are defined in object space:
+ Vector3 p = iInvRot * (pRay.origin() - iPos) * iInvScale;
+ Ray modRay(p, iInvRot * pRay.direction());
+ float distance = pMaxDist * iInvScale;
+ bool hit = iModel->IntersectRay(modRay, distance, pStopAtFirstHit);
+ if (hit)
+ {
+ distance *= iScale;
+ pMaxDist = distance;
+ }
+ return hit;
+ }
+
+ void ModelInstance::intersectPoint(const G3D::Vector3& p, AreaInfo &info) const
+ {
+ if (!iModel)
+ {
+#ifdef VMAP_DEBUG
+ std::cout << "<object not loaded>\n";
+#endif
+ return;
+ }
+
+ // M2 files don't contain area info, only WMO files
+ if (flags & MOD_M2)
+ return;
+ if (!iBound.contains(p))
+ return;
+ // child bounds are defined in object space:
+ Vector3 pModel = iInvRot * (p - iPos) * iInvScale;
+ Vector3 zDirModel = iInvRot * Vector3(0.f, 0.f, -1.f);
+ float zDist;
+ if (iModel->IntersectPoint(pModel, zDirModel, zDist, info))
+ {
+ Vector3 modelGround = pModel + zDist * zDirModel;
+ // Transform back to world space. Note that:
+ // Mat * vec == vec * Mat.transpose()
+ // and for rotation matrices: Mat.inverse() == Mat.transpose()
+ float world_Z = ((modelGround * iInvRot) * iScale + iPos).z;
+ if (info.ground_Z < world_Z)
+ {
+ info.ground_Z = world_Z;
+ info.adtId = adtId;
+ }
+ }
+ }
+
+ bool ModelInstance::GetLocationInfo(const G3D::Vector3& p, LocationInfo &info) const
+ {
+ if (!iModel)
+ {
+#ifdef VMAP_DEBUG
+ std::cout << "<object not loaded>\n";
+#endif
+ return false;
+ }
+
+ // M2 files don't contain area info, only WMO files
+ if (flags & MOD_M2)
+ return false;
+ if (!iBound.contains(p))
+ return false;
+ // child bounds are defined in object space:
+ Vector3 pModel = iInvRot * (p - 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;
+ // Transform back to world space. Note that:
+ // Mat * vec == vec * Mat.transpose()
+ // and for rotation matrices: Mat.inverse() == Mat.transpose()
+ float world_Z = ((modelGround * iInvRot) * iScale + iPos).z;
+ if (info.ground_Z < world_Z) // hm...could it be handled automatically with zDist at intersection?
+ {
+ info.ground_Z = world_Z;
+ info.hitInstance = this;
+ return true;
+ }
+ }
+ return false;
+ }
+
+ bool ModelInstance::GetLiquidLevel(const G3D::Vector3& p, LocationInfo &info, float &liqHeight) const
+ {
+ // child bounds are defined in object space:
+ Vector3 pModel = iInvRot * (p - 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 ModelSpawn::readFromFile(FILE* rf, ModelSpawn &spawn)
+ {
+ uint32 check = 0, nameLen;
+ check += fread(&spawn.flags, sizeof(uint32), 1, rf);
+ // EoF?
+ if (!check)
+ {
+ if (ferror(rf))
+ std::cout << "Error reading ModelSpawn!\n";
+ return false;
+ }
+ check += fread(&spawn.adtId, sizeof(uint16), 1, rf);
+ check += fread(&spawn.ID, sizeof(uint32), 1, rf);
+ check += fread(&spawn.iPos, sizeof(float), 3, rf);
+ check += fread(&spawn.iRot, sizeof(float), 3, rf);
+ check += fread(&spawn.iScale, sizeof(float), 1, rf);
+ bool has_bound = (spawn.flags & MOD_HAS_BOUND) != 0;
+ if (has_bound) // only WMOs have bound in MPQ, only available after computation
+ {
+ Vector3 bLow, bHigh;
+ check += fread(&bLow, sizeof(float), 3, rf);
+ check += fread(&bHigh, sizeof(float), 3, rf);
+ spawn.iBound = G3D::AABox(bLow, bHigh);
+ }
+ check += fread(&nameLen, sizeof(uint32), 1, rf);
+ if (check != uint32(has_bound ? 17 : 11))
+ {
+ std::cout << "Error reading ModelSpawn!\n";
+ return false;
+ }
+ char nameBuff[500];
+ if (nameLen > 500) // file names should never be that long, must be file error
+ {
+ std::cout << "Error reading ModelSpawn, file name too long!\n";
+ return false;
+ }
+ check = fread(nameBuff, sizeof(char), nameLen, rf);
+ if (check != nameLen)
+ {
+ std::cout << "Error reading ModelSpawn!\n";
+ return false;
+ }
+ spawn.name = std::string(nameBuff, nameLen);
+ return true;
+ }
+
+ bool ModelSpawn::writeToFile(FILE* wf, const ModelSpawn &spawn)
+ {
+ uint32 check=0;
+ check += fwrite(&spawn.flags, sizeof(uint32), 1, wf);
+ check += fwrite(&spawn.adtId, sizeof(uint16), 1, wf);
+ check += fwrite(&spawn.ID, sizeof(uint32), 1, wf);
+ check += fwrite(&spawn.iPos, sizeof(float), 3, wf);
+ check += fwrite(&spawn.iRot, sizeof(float), 3, wf);
+ check += fwrite(&spawn.iScale, sizeof(float), 1, wf);
+ bool has_bound = (spawn.flags & MOD_HAS_BOUND) != 0;
+ if (has_bound) // only WMOs have bound in MPQ, only available after computation
+ {
+ check += fwrite(&spawn.iBound.low(), sizeof(float), 3, wf);
+ check += fwrite(&spawn.iBound.high(), sizeof(float), 3, wf);
+ }
+ uint32 nameLen = spawn.name.length();
+ check += fwrite(&nameLen, sizeof(uint32), 1, wf);
+ if (check != uint32(has_bound ? 17 : 11)) return false;
+ check = fwrite(spawn.name.c_str(), sizeof(char), nameLen, wf);
+ if (check != nameLen) return false;
+ return true;
+ }
+
+}