From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 15 Aug 2020 08:04:49 -0500
Subject: [PATCH] Fix MC-187716 Use configured height


diff --git a/src/main/java/net/minecraft/server/WorldGenSurfaceNether.java b/src/main/java/net/minecraft/server/WorldGenSurfaceNether.java
index 6677740edb41901d6f8f92b6339e04b4e22cb6b6..dd3511d520cc385e4e89773e12d0e35aae8ecf3d 100644
--- a/src/main/java/net/minecraft/server/WorldGenSurfaceNether.java
+++ b/src/main/java/net/minecraft/server/WorldGenSurfaceNether.java
@@ -29,7 +29,7 @@ public class WorldGenSurfaceNether extends WorldGenSurface<WorldGenSurfaceConfig
         IBlockData iblockdata2 = worldgensurfaceconfigurationbase.a();
         IBlockData iblockdata3 = worldgensurfaceconfigurationbase.b();
 
-        for (int k2 = 127; k2 >= 0; --k2) {
+        for (int k2 = k; k2 >= 0; --k2) { // Paper - fix MC-187716 - use configured height
             blockposition_mutableblockposition.d(k1, k2, l1);
             IBlockData iblockdata4 = ichunkaccess.getType(blockposition_mutableblockposition);
 
diff --git a/src/main/java/net/minecraft/server/WorldGenSurfaceNetherAbstract.java b/src/main/java/net/minecraft/server/WorldGenSurfaceNetherAbstract.java
index 1ff8b4eb10bffb0c33c2ad8d1d490d3da99e72f2..462f0b2baea4207d7d82f2d4e043a5a7999a1f42 100644
--- a/src/main/java/net/minecraft/server/WorldGenSurfaceNetherAbstract.java
+++ b/src/main/java/net/minecraft/server/WorldGenSurfaceNetherAbstract.java
@@ -37,7 +37,7 @@ public abstract class WorldGenSurfaceNetherAbstract extends WorldGenSurface<Worl
         BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
         IBlockData iblockdata4 = ichunkaccess.getType(blockposition_mutableblockposition.d(k1, 128, l1));
 
-        for (int k2 = 127; k2 >= 0; --k2) {
+        for (int k2 = k; k2 >= 0; --k2) { // Paper - fix MC-187716 - use configured height
             blockposition_mutableblockposition.d(k1, k2, l1);
             IBlockData iblockdata5 = ichunkaccess.getType(blockposition_mutableblockposition);
             int l2;
diff --git a/src/main/java/net/minecraft/server/WorldGenSurfaceNetherForest.java b/src/main/java/net/minecraft/server/WorldGenSurfaceNetherForest.java
index c3c31fa356b2cd63db312ec15c5e45320cf6cfbb..4618425bf8c0d90a5399986691b451d2a9311d5a 100644
--- a/src/main/java/net/minecraft/server/WorldGenSurfaceNetherForest.java
+++ b/src/main/java/net/minecraft/server/WorldGenSurfaceNetherForest.java
@@ -27,7 +27,7 @@ public class WorldGenSurfaceNetherForest extends WorldGenSurface<WorldGenSurface
         int j2 = -1;
         IBlockData iblockdata2 = worldgensurfaceconfigurationbase.b();
 
-        for (int k2 = 127; k2 >= 0; --k2) {
+        for (int k2 = k; k2 >= 0; --k2) { // Paper - fix MC-187716 - use configured height
             blockposition_mutableblockposition.d(k1, k2, l1);
             IBlockData iblockdata3 = worldgensurfaceconfigurationbase.a();
             IBlockData iblockdata4 = ichunkaccess.getType(blockposition_mutableblockposition);