Core/Movement: waypoint movement (#20121)

Following the work done in #19361 this is the cleanup and improvement of the related logic of waypoint management.

Ref 28050f3 #18020
(taking the good parts and ignoring the incomplete work)

(cherry picked from commit 7fff83d67526efff63867d41b9e036a19a9287b3)

2 files changed, 45 insertions, 57 deletions

diff --git a/src/server/game/Scripting/ScriptSystem.cpp b/src/server/game/Scripting/ScriptSystem.cpp
index e2641447086..0cb051b3cdf 100644
--- a/src/server/game/Scripting/ScriptSystem.cpp
+++ b/src/server/game/Scripting/ScriptSystem.cpp
@@ -36,17 +36,17 @@ void SystemMgr::LoadScriptWaypoints()
 {
     uint32 oldMSTime = getMSTime();
 
-    // Drop Existing Waypoint list
-    m_mPointMoveMap.clear();
+    // drop Existing Waypoint list
+    _waypointStore.clear();
 
-    uint64 uiCreatureCount = 0;
+    uint64 entryCount = 0;
 
-    // Load Waypoints
+    // load Waypoints
     QueryResult result = WorldDatabase.Query("SELECT COUNT(entry) FROM script_waypoint GROUP BY entry");
     if (result)
-        uiCreatureCount = result->GetRowCount();
+        entryCount = result->GetRowCount();
 
-    TC_LOG_INFO("server.loading", "Loading Script Waypoints for " UI64FMTD " creature(s)...", uiCreatureCount);
+    TC_LOG_INFO("server.loading", "Loading Script Waypoints for " UI64FMTD " creature(s)...", entryCount);
 
     //                                     0       1         2           3           4           5
     result = WorldDatabase.Query("SELECT entry, pointid, location_x, location_y, location_z, waittime FROM script_waypoint ORDER BY pointid");
@@ -60,29 +60,28 @@ void SystemMgr::LoadScriptWaypoints()
 
     do
     {
-        Field* pFields = result->Fetch();
-        ScriptPointMove temp;
-
-        temp.uiCreatureEntry   = pFields[0].GetUInt32();
-        uint32 uiEntry         = temp.uiCreatureEntry;
-        temp.uiPointId         = pFields[1].GetUInt32();
-        temp.fX                = pFields[2].GetFloat();
-        temp.fY                = pFields[3].GetFloat();
-        temp.fZ                = pFields[4].GetFloat();
-        temp.uiWaitTime        = pFields[5].GetUInt32();
-
-        CreatureTemplate const* pCInfo = sObjectMgr->GetCreatureTemplate(temp.uiCreatureEntry);
-
-        if (!pCInfo)
+        Field* fields = result->Fetch();
+        uint32 entry = fields[0].GetUInt32();
+        uint32 id = fields[1].GetUInt32();
+        float x = fields[2].GetFloat();
+        float y = fields[3].GetFloat();
+        float z = fields[4].GetFloat();
+        uint32 waitTime = fields[5].GetUInt32();
+
+        CreatureTemplate const* info = sObjectMgr->GetCreatureTemplate(entry);
+        if (!info)
         {
-            TC_LOG_ERROR("sql.sql", "TSCR: DB table script_waypoint has waypoint for non-existant creature entry %u", temp.uiCreatureEntry);
+            TC_LOG_ERROR("sql.sql", "SystemMgr: DB table script_waypoint has waypoint for non-existant creature entry %u", entry);
             continue;
         }
 
-        if (!pCInfo->ScriptID)
-            TC_LOG_ERROR("sql.sql", "TSCR: DB table script_waypoint has waypoint for creature entry %u, but creature does not have ScriptName defined and then useless.", temp.uiCreatureEntry);
+        if (!info->ScriptID)
+            TC_LOG_ERROR("sql.sql", "SystemMgr: DB table script_waypoint has waypoint for creature entry %u, but creature does not have ScriptName defined and then useless.", entry);
+
+        WaypointPath& path = _waypointStore[entry];
+        path.id = entry;
+        path.nodes.emplace_back(id, x, y, z, 0.f, waitTime);
 
-        m_mPointMoveMap[uiEntry].push_back(temp);
         ++count;
     } while (result->NextRow());
 
@@ -162,6 +161,15 @@ void SystemMgr::LoadScriptSplineChains()
     }
 }
 
+WaypointPath const* SystemMgr::GetPath(uint32 creatureEntry) const
+{
+    auto itr = _waypointStore.find(creatureEntry);
+    if (itr == _waypointStore.end())
+        return nullptr;
+
+    return &itr->second;
+}
+
 std::vector<SplineChainLink> const* SystemMgr::GetSplineChain(uint32 entry, uint16 chainId) const
 {
     auto it = m_mSplineChainsMap.find({ entry, chainId });
diff --git a/src/server/game/Scripting/ScriptSystem.h b/src/server/game/Scripting/ScriptSystem.h
index f058bf886ee..772b99244f8 100644
--- a/src/server/game/Scripting/ScriptSystem.h
+++ b/src/server/game/Scripting/ScriptSystem.h
@@ -20,59 +20,39 @@
 
 #include "Define.h"
 #include "Hash.h"
+#include "WaypointDefines.h"
 #include <unordered_map>
 #include <vector>
 
 class Creature;
 struct SplineChainLink;
 
-#define TEXT_SOURCE_RANGE -1000000                          //the amount of entries each text source has available
-
-struct ScriptPointMove
-{
-    uint32 uiCreatureEntry;
-    uint32 uiPointId;
-    float  fX;
-    float  fY;
-    float  fZ;
-    uint32 uiWaitTime;
-};
-
-typedef std::vector<ScriptPointMove> ScriptPointVector;
+#define TEXT_SOURCE_RANGE -1000000 // the amount of entries each text source has available
 
 class TC_GAME_API SystemMgr
 {
-    private:
-        SystemMgr();
-        ~SystemMgr();
-        SystemMgr(SystemMgr const&) = delete;
-        SystemMgr& operator=(SystemMgr const&) = delete;
-
     public:
         static SystemMgr* instance();
 
-        typedef std::unordered_map<uint32, ScriptPointVector> PointMoveMap;
-
-        //Database
+        // database
         void LoadScriptWaypoints();
         void LoadScriptSplineChains();
 
-        ScriptPointVector const* GetPointMoveList(uint32 creatureEntry) const
-        {
-            PointMoveMap::const_iterator itr = m_mPointMoveMap.find(creatureEntry);
-
-            if (itr == m_mPointMoveMap.end())
-                return nullptr;
-
-            return &itr->second;
-        }
+        WaypointPath const* GetPath(uint32 creatureEntry) const;
 
         std::vector<SplineChainLink> const* GetSplineChain(uint32 entry, uint16 chainId) const;
         std::vector<SplineChainLink> const* GetSplineChain(Creature const* who, uint16 id) const;
 
-    protected:
-        PointMoveMap    m_mPointMoveMap;                    //coordinates for waypoints
+    private:
         typedef std::pair<uint32, uint16> ChainKeyType; // creature entry + chain ID
+
+        SystemMgr();
+        ~SystemMgr();
+
+        SystemMgr(SystemMgr const&) = delete;
+        SystemMgr& operator=(SystemMgr const&) = delete;
+
+        std::unordered_map<uint32, WaypointPath> _waypointStore;
         std::unordered_map<ChainKeyType, std::vector<SplineChainLink>> m_mSplineChainsMap; // spline chains
 };