diff --git a/LiteLoader/Header/MC/BlockSource.hpp b/LiteLoader/Header/MC/BlockSource.hpp
index 475036f..ea72848 100644
--- a/LiteLoader/Header/MC/BlockSource.hpp
+++ b/LiteLoader/Header/MC/BlockSource.hpp
@@ -27,7 +27,7 @@ public:
     inline AutomaticID<class Dimension, int> getDimensionId() const{
         //Dimension::onBlockEvent Line24
 //        Dimension* mDimension = dAccess< Dimension*>(this, 4);
-        return dAccess<AutomaticID<class Dimension, int>>(getDimension(), 192);
+        return this->getDimension()->getDimensionId();
     };
     inline LevelChunk * getChunkAt(const BlockPos& pos) const{
         ChunkPos chunkPos = ChunkPos(pos.x>>4, pos.z>>4);
diff --git a/LiteLoader/Header/MC/Dimension.hpp b/LiteLoader/Header/MC/Dimension.hpp
index 85916b4..0be90cc 100644
--- a/LiteLoader/Header/MC/Dimension.hpp
+++ b/LiteLoader/Header/MC/Dimension.hpp
@@ -4,7 +4,16 @@
 #include "../Global.h"
 
 #define BEFORE_EXTRA
-#include "MC/BlockSource.hpp"
+class BlockSource;
+
+class DimensionHeightRange
+{
+public:
+    short min = 0;
+    short max;
+
+    DimensionHeightRange(short a):max(a){};
+};
 #undef BEFORE_EXTRA
 
 class Dimension {
@@ -23,6 +32,14 @@ public:
         //Player::checkSpawnBlock Line19
         return dAccess<AutomaticID<Dimension,int>>(this,192);
     };
+    inline DimensionHeightRange const & getHeightRange() const{
+        // 0为主世界，1为下界，2为末地
+        if(this->getDimensionId() == 2 || this->getDimensionId() == 0)
+            return DimensionHeightRange(255);
+        else if(this->getDimensionId() == 1)
+            return DimensionHeightRange(127);
+        return DimensionHeightRange(0);
+    };
 #undef AFTER_EXTRA
 #ifndef DISABLE_CONSTRUCTOR_PREVENTION_DIMENSION
 public: