Fix TNTPrimed head hight calculation

Fixes GH-370

Spigot-Server-Patches/0152-Optional-old-TNT-cannon-behaviors.patch

@@ -1,4 +1,4 @@
-From 1c549e3bb8a05d3e9af84f9af79ebebab8713633 Mon Sep 17 00:00:00 2001
+From f4843a279527a5ea8ccaedcdf1de0b6ca2c30a02 Mon Sep 17 00:00:00 2001
 From: Zach Brown <zach.brown@destroystokyo.com>
 Date: Sun, 22 May 2016 20:20:55 -0500
 Subject: [PATCH] Optional old TNT cannon behaviors
@@ -288,7 +288,7 @@ index a1392d6..4fd4371 100644
 +    // Paper end
  }
 diff --git a/src/main/java/net/minecraft/server/EntityTNTPrimed.java b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
-index 86f3f1f..3f4e21d 100644
+index 86f3f1f..9a25219 100644
 --- a/src/main/java/net/minecraft/server/EntityTNTPrimed.java
 +++ b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
 @@ -30,6 +30,7 @@ public class EntityTNTPrimed extends Entity {
@@ -304,7 +304,7 @@ index 86f3f1f..3f4e21d 100644
  
      public float getHeadHeight() {
 -        return 0.0F;
-+        return world.paperConfig.oldCannonBehaviors ? this.length / 2 : 0.0F; // Paper - Old TNT cannon behaviors
++        return world.paperConfig.oldCannonBehaviors ? this.length / 16F : 0.0F; // Paper - Old TNT cannon behaviors
      }
  
      public void setFuseTicks(int i) {
@@ -391,5 +391,5 @@ index 6cdc3a3..0b9bc91 100644
                              EntityHuman entityhuman = (EntityHuman) entity;
  
 -- 
-2.9.0
+2.9.2.windows.1