Core/Maps: Parse MFBO adt chunk to properly handle height where player counts as falling under the map

* This fixes the height at which player is instantly killed when falling from The Frozen Throne
* Set PLAYER_FLAGS_IS_OUT_OF_BOUNDS on players under the map to enable release spirit button while still falling

Note: Extracting new maps is required
(cherry picked from commit 4f78efd4633f79285f176b61367a067b2cd90e2b)

# Conflicts:
#	dep/PackageList.txt
#	src/server/game/DataStores/DBCStructure.h
#	src/server/game/Entities/Player/Player.cpp
#	src/server/game/Handlers/MovementHandler.cpp
#	src/tools/map_extractor/CMakeLists.txt
#	src/tools/map_extractor/System.cpp
#	src/tools/map_extractor/adt.h
#	src/tools/map_extractor/loadlib.cpp

1 files changed, 8 insertions, 3 deletions

diff --git a/src/server/game/Maps/Map.h b/src/server/game/Maps/Map.h
index 46eede09948..13d48db0f9d 100644
--- a/src/server/game/Maps/Map.h
+++ b/src/server/game/Maps/Map.h
@@ -98,9 +98,10 @@ struct map_areaHeader
     uint16 gridArea;
 };
 
-#define MAP_HEIGHT_NO_HEIGHT  0x0001
-#define MAP_HEIGHT_AS_INT16   0x0002
-#define MAP_HEIGHT_AS_INT8    0x0004
+#define MAP_HEIGHT_NO_HEIGHT            0x0001
+#define MAP_HEIGHT_AS_INT16             0x0002
+#define MAP_HEIGHT_AS_INT8              0x0004
+#define MAP_HEIGHT_HAS_FLIGHT_BOUNDS    0x0008
 
 struct map_heightHeader
 {
@@ -166,6 +167,8 @@ class GridMap
         uint16* m_uint16_V8;
         uint8* m_uint8_V8;
     };
+    float* _maxHeight;
+    float* _minHeight;
     // Height level data
     float _gridHeight;
     float _gridIntHeightMultiplier;
@@ -206,6 +209,7 @@ public:
 
     uint16 getArea(float x, float y) const;
     inline float getHeight(float x, float y) const {return (this->*_gridGetHeight)(x, y);}
+    float getMinHeight(float x, float y) const;
     float getLiquidLevel(float x, float y) const;
     uint8 getTerrainType(float x, float y) const;
     ZLiquidStatus getLiquidStatus(float x, float y, float z, uint8 ReqLiquidType, LiquidData* data = 0);
@@ -326,6 +330,7 @@ class Map : public GridRefManager<NGridType>
         // some calls like isInWater should not use vmaps due to processor power
         // can return INVALID_HEIGHT if under z+2 z coord not found height
         float GetHeight(float x, float y, float z, bool checkVMap = true, float maxSearchDist = DEFAULT_HEIGHT_SEARCH) const;
+        float GetMinHeight(float x, float y) const;
 
         ZLiquidStatus getLiquidStatus(float x, float y, float z, uint8 ReqLiquidType, LiquidData* data = nullptr) const;