From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Mariell Hoversholm <proximyst@proximyst.com>
Date: Sat, 9 Jan 2021 16:06:40 +0100
Subject: [PATCH] Farmland trampling changes

This lets us choose if only players may trample farmland.

This lets us choose if entities can stop trampling if they fall a
distance equal to their feather falling level, plus the extra block
necessary to trample in the first place. Feather Falling 1 requires you
to fall over 3+ blocks to trample. FF 2 requires 4+, etc.

diff --git a/src/main/java/net/minecraft/server/BlockSoil.java b/src/main/java/net/minecraft/server/BlockSoil.java
index 73dc0f499c456c21d298013fbab8c79ebcdecd6b..6b65a4b1845c6770f92ceebd04827595725632b5 100644
--- a/src/main/java/net/minecraft/server/BlockSoil.java
+++ b/src/main/java/net/minecraft/server/BlockSoil.java
@@ -97,6 +97,12 @@ public class BlockSoil extends Block {
                     return;
                 }
             }
+            if (world.purpurConfig.farmlandTramplingOnlyPlayers && !(entity instanceof EntityPlayer)) return;
+            if (world.purpurConfig.farmlandTramplingFeatherFalling) {
+                Iterator<ItemStack> armor = entity.getArmorItems().iterator();
+                if (armor.hasNext() && EnchantmentManager.getEnchantmentLevel(Enchantments.PROTECTION_FALL, armor.next()) >= (int) entity.fallDistance)
+                    return;
+            }
             // Purpur end
             if (CraftEventFactory.callEntityChangeBlockEvent(entity, blockposition, Blocks.DIRT.getBlockData()).isCancelled()) {
                 return;
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 4d1851d23f27f58299f72f4bc14e7c99c69245d2..5699d54d9ffd1f194a22fe03ad4d144d3ad5a007 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -413,10 +413,14 @@ public class PurpurWorldConfig {
     public boolean farmlandBypassMobGriefing = false;
     public boolean farmlandGetsMoistFromBelow = false;
     public boolean farmlandAlpha = false;
+    public boolean farmlandTramplingOnlyPlayers = false;
+    public boolean farmlandTramplingFeatherFalling = false;
     private void farmlandSettings() {
         farmlandBypassMobGriefing = getBoolean("blocks.farmland.bypass-mob-griefing", farmlandBypassMobGriefing);
         farmlandGetsMoistFromBelow = getBoolean("blocks.farmland.gets-moist-from-below", farmlandGetsMoistFromBelow);
         farmlandAlpha = getBoolean("blocks.farmland.use-alpha-farmland", farmlandAlpha);
+        farmlandTramplingOnlyPlayers = getBoolean("blocks.farmland.only-players-trample", farmlandTramplingOnlyPlayers);
+        farmlandTramplingFeatherFalling = getBoolean("blocks.farmland.feather-fall-distance-affects-trampling", farmlandTramplingFeatherFalling);
     }
 
     public boolean furnaceInfiniteFuel = false;