76b2ee5e99
* Removed deprecated docker build * [Core] Several codestyle/standardization fixes * [vmap] Remove unused functions * [core/vmap] Standardise functions and codestyle * [Docker] Cmake double install fix Co-authored-by: PargeLenis <dead.man.walkin@hotmail.de>
534 lines
18 KiB
C++
534 lines
18 KiB
C++
/**
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* MaNGOS is a full featured server for World of Warcraft, supporting
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* the following clients: 1.12.x, 2.4.3, 3.3.5a, 4.3.4a and 5.4.8
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*
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* Copyright (C) 2005-2022 MaNGOS <https://getmangos.eu>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* World of Warcraft, and all World of Warcraft or Warcraft art, images,
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* and lore are copyrighted by Blizzard Entertainment, Inc.
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*/
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#include "MapTree.h"
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#include "ModelInstance.h"
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#include "VMapManager2.h"
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#include "VMapDefinitions.h"
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#include <string>
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#include <sstream>
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#include <iomanip>
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#include <limits>
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using G3D::Vector3;
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namespace VMAP
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{
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class MapRayCallback
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{
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public:
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MapRayCallback(ModelInstance* val): prims(val), hit(false) {}
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bool operator()(const G3D::Ray& ray, uint32 entry, float& distance, bool pStopAtFirstHit = true)
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{
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bool result = prims[entry].intersectRay(ray, distance, pStopAtFirstHit);
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if (result)
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{
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hit = true;
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}
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return result;
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}
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bool didHit() { return hit; }
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protected:
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ModelInstance* prims;
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bool hit;
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};
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class AreaInfoCallback
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{
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public:
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AreaInfoCallback(ModelInstance* val): prims(val) {}
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void operator()(const Vector3& point, uint32 entry)
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{
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#ifdef VMAP_DEBUG
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DEBUG_LOG("trying to intersect '%s'", prims[entry].name.c_str());
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#endif
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prims[entry].GetAreaInfo(point, aInfo);
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}
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ModelInstance* prims;
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AreaInfo aInfo;
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};
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class LocationInfoCallback
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{
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public:
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LocationInfoCallback(ModelInstance* val, LocationInfo& info): prims(val), locInfo(info), result(false) {}
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void operator()(const Vector3& point, uint32 entry)
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{
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#ifdef VMAP_DEBUG
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DEBUG_LOG("trying to intersect '%s'", prims[entry].name.c_str());
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#endif
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if (prims[entry].GetLocationInfo(point, locInfo))
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{
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result = true;
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}
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}
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ModelInstance* prims;
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LocationInfo& locInfo;
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bool result;
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};
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//=========================================================
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std::string StaticMapTree::getTileFileName(uint32 mapID, uint32 tileX, uint32 tileY)
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{
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std::stringstream tilefilename;
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tilefilename.fill('0');
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tilefilename << std::setw(3) << mapID << "_";
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// tilefilename << std::setw(2) << tileX << "_" << std::setw(2) << tileY << ".vmtile";
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tilefilename << std::setw(2) << tileY << "_" << std::setw(2) << tileX << ".vmtile";
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return tilefilename.str();
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}
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bool StaticMapTree::getAreaInfo(Vector3& pos, uint32& flags, int32& adtId, int32& rootId, int32& groupId) const
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{
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AreaInfoCallback intersectionCallBack(iTreeValues);
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iTree.intersectPoint(pos, intersectionCallBack);
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if (intersectionCallBack.aInfo.result)
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{
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flags = intersectionCallBack.aInfo.flags;
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adtId = intersectionCallBack.aInfo.adtId;
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rootId = intersectionCallBack.aInfo.rootId;
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groupId = intersectionCallBack.aInfo.groupId;
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pos.z = intersectionCallBack.aInfo.ground_Z;
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return true;
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}
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return false;
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}
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bool StaticMapTree::GetLocationInfo(const Vector3& pos, LocationInfo& info) const
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{
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LocationInfoCallback intersectionCallBack(iTreeValues, info);
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iTree.intersectPoint(pos, intersectionCallBack);
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return intersectionCallBack.result;
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}
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StaticMapTree::StaticMapTree(uint32 mapID, const std::string& basePath):
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iMapID(mapID), iTreeValues(0), iBasePath(basePath)
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{
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if (iBasePath.length() > 0 && (iBasePath[iBasePath.length() - 1] != '/' || iBasePath[iBasePath.length() - 1] != '\\'))
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{
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iBasePath.append("/");
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}
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}
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//=========================================================
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//! Make sure to call unloadMap() to unregister acquired model references before destroying
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StaticMapTree::~StaticMapTree()
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{
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delete[] iTreeValues;
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}
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//=========================================================
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/**
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If intersection is found within pMaxDist, sets pMaxDist to intersection distance and returns true.
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Else, pMaxDist is not modified and returns false;
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*/
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bool StaticMapTree::getIntersectionTime(const G3D::Ray& pRay, float& pMaxDist, bool pStopAtFirstHit) const
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{
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float distance = pMaxDist;
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MapRayCallback intersectionCallBack(iTreeValues);
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iTree.intersectRay(pRay, intersectionCallBack, distance, pStopAtFirstHit);
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if (intersectionCallBack.didHit())
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{
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pMaxDist = distance;
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}
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return intersectionCallBack.didHit();
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}
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//=========================================================
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bool StaticMapTree::isInLineOfSight(const Vector3& pos1, const Vector3& pos2) const
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{
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float maxDist = (pos2 - pos1).magnitude();
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// return false if distance is over max float, in case of cheater teleporting to the end of the universe
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if (maxDist == std::numeric_limits<float>::max() ||
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maxDist == std::numeric_limits<float>::infinity())
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{
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return false;
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}
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// valid map coords should *never ever* produce float overflow, but this would produce NaNs too:
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MANGOS_ASSERT(maxDist < std::numeric_limits<float>::max());
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// prevent NaN values which can cause BIH intersection to enter infinite loop
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if (maxDist < 1e-10f)
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{
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return true;
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}
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// direction with length of 1
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G3D::Ray ray = G3D::Ray::fromOriginAndDirection(pos1, (pos2 - pos1) / maxDist);
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if (getIntersectionTime(ray, maxDist, true))
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{
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return false;
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}
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return true;
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}
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//=========================================================
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/**
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When moving from pos1 to pos2 check if we hit an object. Return true and the position if we hit one
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Return the hit pos or the original dest pos
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*/
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bool StaticMapTree::getObjectHitPos(const Vector3& pPos1, const Vector3& pPos2, Vector3& pResultHitPos, float pModifyDist) const
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{
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float maxDist = (pPos2 - pPos1).magnitude();
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// valid map coords should *never ever* produce float overflow, but this would produce NaNs too:
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MANGOS_ASSERT(maxDist < std::numeric_limits<float>::max());
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// prevent NaN values which can cause BIH intersection to enter infinite loop
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if (maxDist < 1e-10f)
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{
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pResultHitPos = pPos2;
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return false;
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}
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Vector3 dir = (pPos2 - pPos1) / maxDist; // direction with length of 1
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G3D::Ray ray(pPos1, dir);
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float dist = maxDist;
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if (getIntersectionTime(ray, dist, false))
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{
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pResultHitPos = pPos1 + dir * dist;
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if (pModifyDist < 0)
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{
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if ((pResultHitPos - pPos1).magnitude() > -pModifyDist)
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{
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pResultHitPos = pResultHitPos + dir * pModifyDist;
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}
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else
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{
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pResultHitPos = pPos1;
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}
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}
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else
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{
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pResultHitPos = pResultHitPos + dir * pModifyDist;
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}
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return true;
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}
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else
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{
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pResultHitPos = pPos2;
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}
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return false;
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}
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//=========================================================
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float StaticMapTree::getHeight(const Vector3& pPos, float maxSearchDist) const
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{
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float height = G3D::inf();
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Vector3 dir = Vector3(0, 0, -1);
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G3D::Ray ray(pPos, dir); // direction with length of 1
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float maxDist = maxSearchDist;
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if (getIntersectionTime(ray, maxDist, false))
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{
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height = pPos.z - maxDist;
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}
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return(height);
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}
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//=========================================================
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bool StaticMapTree::CanLoadMap(const std::string& vmapPath, uint32 mapID, uint32 tileX, uint32 tileY)
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{
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std::string basePath = vmapPath;
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if (basePath.length() > 0 && (basePath[basePath.length() - 1] != '/' || basePath[basePath.length() - 1] != '\\'))
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{
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basePath.append("/");
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}
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std::string fullname = basePath + VMapManager2::getMapFileName(mapID);
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bool success = true;
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FILE* rf = fopen(fullname.c_str(), "rb");
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if (!rf)
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{
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return false;
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}
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// TODO: check magic number when implemented...
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char tiled;
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char chunk[8];
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if (!readChunk(rf, chunk, VMAP_MAGIC, 8) || fread(&tiled, sizeof(char), 1, rf) != 1)
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{
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fclose(rf);
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return false;
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}
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if (tiled)
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{
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std::string tilefile = basePath + getTileFileName(mapID, tileX, tileY);
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FILE* tf = fopen(tilefile.c_str(), "rb");
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if (!tf)
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{
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success = false;
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}
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else
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{
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if (!readChunk(tf, chunk, VMAP_MAGIC, 8))
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{
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success = false;
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}
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fclose(tf);
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}
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}
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fclose(rf);
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return success;
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}
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//=========================================================
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bool StaticMapTree::InitMap(const std::string& fname, VMapManager2* vm)
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{
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DEBUG_FILTER_LOG(LOG_FILTER_MAP_LOADING, "Initializing StaticMapTree '%s'", fname.c_str());
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bool success = true;
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std::string fullname = iBasePath + fname;
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FILE* rf = fopen(fullname.c_str(), "rb");
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if (!rf)
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{
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return false;
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}
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else
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{
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char chunk[8];
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// general info
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if (!readChunk(rf, chunk, VMAP_MAGIC, 8))
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{
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success = false;
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}
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char tiled=0;
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if (success && fread(&tiled, sizeof(char), 1, rf) != 1)
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{
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success = false;
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}
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iIsTiled = bool(tiled);
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// Nodes
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if (success && !readChunk(rf, chunk, "NODE", 4))
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{
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success = false;
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}
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if (success)
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{
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success = iTree.ReadFromFile(rf);
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}
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if (success)
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{
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iNTreeValues = iTree.primCount();
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iTreeValues = new ModelInstance[iNTreeValues];
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}
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if (success && !readChunk(rf, chunk, "GOBJ", 4))
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{
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success = false;
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}
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// global model spawns
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// only non-tiled maps have them, and if so exactly one (so far at least...)
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ModelSpawn spawn;
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#ifdef VMAP_DEBUG
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DEBUG_LOG("Map isTiled: %u", static_cast<uint32>(iIsTiled));
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#endif
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if (!iIsTiled && ModelSpawn::ReadFromFile(rf, spawn))
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{
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WorldModel* model = vm->acquireModelInstance(iBasePath, spawn.name, spawn.flags);
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DEBUG_FILTER_LOG(LOG_FILTER_MAP_LOADING, "StaticMapTree::InitMap(): loading %s", spawn.name.c_str());
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if (model)
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{
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// assume that global model always is the first and only tree value (could be improved...)
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iTreeValues[0] = ModelInstance(spawn, model);
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iLoadedSpawns[0] = 1;
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}
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else
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{
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success = false;
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ERROR_LOG("StaticMapTree::InitMap() could not acquire WorldModel pointer for '%s'!", spawn.name.c_str());
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}
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}
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fclose(rf);
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}
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return success;
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}
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//=========================================================
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void StaticMapTree::UnloadMap(VMapManager2* vm)
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{
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for (loadedSpawnMap::iterator i = iLoadedSpawns.begin(); i != iLoadedSpawns.end(); ++i)
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{
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iTreeValues[i->first].setUnloaded();
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for (uint32 refCount = 0; refCount < i->second; ++refCount)
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{
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vm->releaseModelInstance(iTreeValues[i->first].name);
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}
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}
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iLoadedSpawns.clear();
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iLoadedTiles.clear();
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}
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//=========================================================
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bool StaticMapTree::LoadMapTile(uint32 tileX, uint32 tileY, VMapManager2* vm)
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{
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if (!iIsTiled)
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{
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// currently, core creates grids for all maps, whether it has terrain tiles or not
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// so we need "fake" tile loads to know when we can unload map geometry
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iLoadedTiles[packTileID(tileX, tileY)] = false;
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return true;
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}
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if (!iTreeValues)
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{
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ERROR_LOG("StaticMapTree::LoadMapTile(): Tree has not been initialized! [%u,%u]", tileX, tileY);
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return false;
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}
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bool result = true;
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std::string tilefile = iBasePath + getTileFileName(iMapID, tileX, tileY);
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FILE* tf = fopen(tilefile.c_str(), "rb");
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if (tf)
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{
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char chunk[8];
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if (!readChunk(tf, chunk, VMAP_MAGIC, 8))
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{
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result = false;
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}
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uint32 numSpawns = 0;
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if (result && fread(&numSpawns, sizeof(uint32), 1, tf) != 1)
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{
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result = false;
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}
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for (uint32 i = 0; i < numSpawns && result; ++i)
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{
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// read model spawns
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ModelSpawn spawn;
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result = ModelSpawn::ReadFromFile(tf, spawn);
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if (result)
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{
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// acquire model instance
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WorldModel* model = vm->acquireModelInstance(iBasePath, spawn.name, spawn.flags);
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if (!model)
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{
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ERROR_LOG("StaticMapTree::LoadMapTile() could not acquire WorldModel pointer for '%s'!", spawn.name.c_str());
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}
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// update tree
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uint32 referencedVal;
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size_t fileRead = fread(&referencedVal, sizeof(uint32), 1, tf);
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if (!iLoadedSpawns.count(referencedVal) || fileRead <= 0)
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{
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if (referencedVal > iNTreeValues)
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{
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ERROR_LOG("invalid tree element! (%u/%u)", referencedVal, iNTreeValues);
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continue;
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}
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iTreeValues[referencedVal] = ModelInstance(spawn, model);
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iLoadedSpawns[referencedVal] = 1;
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}
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else
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{
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++iLoadedSpawns[referencedVal];
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#ifdef VMAP_DEBUG
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if (iTreeValues[referencedVal].ID != spawn.ID)
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{
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DEBUG_LOG("Error: trying to load wrong spawn in node!");
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}
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else if (iTreeValues[referencedVal].name != spawn.name)
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{
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DEBUG_LOG("Error: name mismatch on GUID=%u", spawn.ID);
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}
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#endif
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}
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}
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}
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iLoadedTiles[packTileID(tileX, tileY)] = true;
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fclose(tf);
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}
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else
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{
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iLoadedTiles[packTileID(tileX, tileY)] = false;
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}
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return result;
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}
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//=========================================================
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void StaticMapTree::UnloadMapTile(uint32 tileX, uint32 tileY, VMapManager2* vm)
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{
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uint32 tileID = packTileID(tileX, tileY);
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loadedTileMap::iterator tile = iLoadedTiles.find(tileID);
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if (tile == iLoadedTiles.end())
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{
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ERROR_LOG("StaticMapTree::UnloadMapTile(): Trying to unload non-loaded tile. Map:%u X:%u Y:%u", iMapID, tileX, tileY);
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return;
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}
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if (tile->second) // file associated with tile
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{
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std::string tilefile = iBasePath + getTileFileName(iMapID, tileX, tileY);
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FILE* tf = fopen(tilefile.c_str(), "rb");
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if (tf)
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{
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bool result = true;
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char chunk[8];
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if (!readChunk(tf, chunk, VMAP_MAGIC, 8))
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{
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result = false;
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}
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uint32 numSpawns;
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if (fread(&numSpawns, sizeof(uint32), 1, tf) != 1)
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{
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result = false;
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}
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for (uint32 i = 0; i < numSpawns && result; ++i)
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{
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// read model spawns
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ModelSpawn spawn;
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result = ModelSpawn::ReadFromFile(tf, spawn);
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if (result)
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{
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// release model instance
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vm->releaseModelInstance(spawn.name);
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// update tree
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uint32 referencedNode;
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size_t fileRead = fread(&referencedNode, sizeof(uint32), 1, tf);
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if (!iLoadedSpawns.count(referencedNode) || fileRead <= 0)
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{
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ERROR_LOG("Trying to unload non-referenced model '%s' (ID:%u)", spawn.name.c_str(), spawn.ID);
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}
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else if (--iLoadedSpawns[referencedNode] == 0)
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{
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iTreeValues[referencedNode].setUnloaded();
|
|
iLoadedSpawns.erase(referencedNode);
|
|
}
|
|
}
|
|
}
|
|
fclose(tf);
|
|
}
|
|
}
|
|
iLoadedTiles.erase(tile);
|
|
}
|
|
}
|