fix(Tools/Mapextractor): Fix water height redundancy algorithm ignoring "no water" (#10947)

src/common/Collision/Maps/MapDefines.h

@@ -13,7 +13,7 @@
 #define SIZE_OF_GRIDS            533.3333f
 
 #define MMAP_MAGIC 0x4d4d4150   // 'MMAP'
-#define MMAP_VERSION 12
+#define MMAP_VERSION 13
 
 struct MmapTileHeader
 {

src/server/game/Maps/Map.cpp

@@ -50,7 +50,7 @@ union u_map_magic
 };
 
 u_map_magic MapMagic        = { {'M', 'A', 'P', 'S'} };
-uint32 MapVersionMagic      = 8;
+uint32 MapVersionMagic      = 9;
 u_map_magic MapAreaMagic    = { {'A', 'R', 'E', 'A'} };
 u_map_magic MapHeightMagic  = { {'M', 'H', 'G', 'T'} };
 u_map_magic MapLiquidMagic  = { {'M', 'L', 'I', 'Q'} };

src/tools/map_extractor/System.cpp

@@ -308,7 +308,7 @@ void ReadLiquidTypeTableDBC()
 
 // Map file format data
 static char const* MAP_MAGIC         = "MAPS";
-static uint32 const MAP_VERSION_MAGIC = 8;
+static uint32 const MAP_VERSION_MAGIC = 9;
 static char const* MAP_AREA_MAGIC    = "AREA";
 static char const* MAP_HEIGHT_MAGIC  = "MHGT";
 static char const* MAP_LIQUID_MAGIC  = "MLIQ";
@@ -841,7 +841,14 @@ bool ConvertADT(std::string const& inputPath, std::string const& outputPath, int
                     if (minHeight > h) minHeight = h;
                 }
                 else
+                {
                     liquid_height[y][x] = CONF_use_minHeight;
+
+                    if (minHeight > CONF_use_minHeight)
+                    {
+                        minHeight = CONF_use_minHeight;
+                    }
+                }
             }
         }
         map.liquidMapOffset = map.heightMapOffset + map.heightMapSize;

src/tools/mmaps_generator/TerrainBuilder.cpp

@@ -80,7 +80,7 @@ struct map_liquidHeader
 namespace MMAP
 {
 
-    uint32 const MAP_VERSION_MAGIC = 8;
+    uint32 const MAP_VERSION_MAGIC = 9;
 
     TerrainBuilder::TerrainBuilder(bool skipLiquid) : m_skipLiquid (skipLiquid) { }
     TerrainBuilder::~TerrainBuilder() = default;