From a9c5d65ab6b429e657fedbbc02054bd06e85b47c Mon Sep 17 00:00:00 2001
From: Byteflux <byte@byteflux.net>
Date: Fri, 28 Nov 2014 02:03:43 -0600
Subject: [PATCH] Drop falling block entities that are above the specified
 height


diff --git a/src/main/java/net/minecraft/server/EntityFallingBlock.java b/src/main/java/net/minecraft/server/EntityFallingBlock.java
index fd78677..81a5dc9 100644
--- a/src/main/java/net/minecraft/server/EntityFallingBlock.java
+++ b/src/main/java/net/minecraft/server/EntityFallingBlock.java
@@ -69,6 +69,17 @@ public class EntityFallingBlock extends Entity {
 
             this.motY -= 0.03999999910593033D;
             this.move(this.motX, this.motY, this.motZ);
+
+            // PaperSpigot start - Drop falling blocks above the specified height
+            if (this.world.paperSpigotConfig.fallingBlockHeightNerf != 0 && this.locY > this.world.paperSpigotConfig.fallingBlockHeightNerf) {
+                if (this.dropItem) {
+                    this.a(new ItemStack(block, 1, block.getDropData(this.block)), 0.0F);
+                }
+
+                this.die();
+            }
+            // PaperSpigot end
+
             this.motX *= 0.9800000190734863D;
             this.motY *= 0.9800000190734863D;
             this.motZ *= 0.9800000190734863D;
diff --git a/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java b/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java
index 00303dc..5306e9a 100644
--- a/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java
+++ b/src/main/java/org/github/paperspigot/PaperSpigotWorldConfig.java
@@ -146,4 +146,14 @@ public class PaperSpigotWorldConfig
         keepSpawnInMemory = getBoolean( "keep-spawn-loaded", true );
         log( "Keep spawn chunk loaded: " + keepSpawnInMemory );
     }
+
+    public double fallingBlockHeightNerf;
+    private void fallingBlockheightNerf()
+    {
+        // Technically a little disingenuous as it applies to all falling blocks but alas, backwards compat prevails!
+        fallingBlockHeightNerf = getDouble( "tnt-entity-height-nerf", 0 );
+        if (fallingBlockHeightNerf != 0) {
+            log( "TNT/Falling Block Height Limit set to Y: " + fallingBlockHeightNerf);
+        }
+    }
 }
-- 
1.9.1