From 1cce906e11b61a10236e103238183ba95d82de59 Mon Sep 17 00:00:00 2001
From: Ryan Michela <deltahat@gmail.com>
Date: Thu, 6 Oct 2016 22:31:53 -0700
Subject: [PATCH] MC-54738: Fix ocean biome spikes due to minHeight sign
 inversion.

---
 nms-patches/ChunkProviderGenerate.patch | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 nms-patches/ChunkProviderGenerate.patch

diff --git a/nms-patches/ChunkProviderGenerate.patch b/nms-patches/ChunkProviderGenerate.patch
new file mode 100644
index 0000000000..cbb0143e23
--- /dev/null
+++ b/nms-patches/ChunkProviderGenerate.patch
@@ -0,0 +1,14 @@
+--- a/net/minecraft/server/ChunkProviderGenerate.java
++++ b/net/minecraft/server/ChunkProviderGenerate.java
+@@ -228,6 +228,11 @@
+                             f5 = 1.0F + f5 * 2.0F;
+                             f6 = 1.0F + f6 * 4.0F;
+                         }
++                        // CraftBukkit start - fix MC-54738
++                        if (f5 < -1.8F) {
++                            f5 = -1.8F;
++                        }
++                        // CraftBukkit end
+ 
+                         float f7 = this.r[l1 + 2 + (i2 + 2) * 5] / (f5 + 2.0F);
+