From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@Gmail.com>
Date: Tue, 4 Jan 2022 11:56:48 -0600
Subject: [PATCH] Configurable farmland trample height

This is _not_ in block height or an exact science.
During my testing I found very inconsistent values
for the fallDistance variable. Here are the results
of those tests (https://imgur.com/BojltJF):

Value set -> Actual fall distance needed to trample
   1.0 -> 1.25
   1.5 -> 1.75
   2.0 -> 2.25
   2.5 -> 2.87
   3.0 -> 3.5
   3.5 -> 4.25
   4.0 -> 4.25
   4.5 -> 5.0
   5.0 -> 5.87
   5.5 -> 5.87
   6.0 -> 6.75

diff --git a/src/main/java/net/minecraft/world/level/block/FarmBlock.java b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
index bc149eb17695ac727aa8db08db6209497f7d20bf..6db97982972bfc67c828f574fb86391e1cdcd4a5 100644
--- a/src/main/java/net/minecraft/world/level/block/FarmBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/FarmBlock.java
@@ -112,7 +112,7 @@ public class FarmBlock extends Block {
     public void fallOn(Level world, BlockState state, BlockPos pos, Entity entity, float fallDistance) {
         super.fallOn(world, state, pos, entity, fallDistance); // CraftBukkit - moved here as game rules / events shouldn't affect fall damage.
         if (world instanceof ServerLevel worldserver) {
-            if (world.random.nextFloat() < fallDistance - 0.5F && entity instanceof LivingEntity && (entity instanceof Player || worldserver.purpurConfig.farmlandBypassMobGriefing || worldserver.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) && entity.getBbWidth() * entity.getBbWidth() * entity.getBbHeight() > 0.512F) { // Purpur
+            if ((worldserver.purpurConfig.farmlandTrampleHeight >= 0D ? fallDistance >= worldserver.purpurConfig.farmlandTrampleHeight : world.random.nextFloat() < fallDistance - 0.5F) && entity instanceof LivingEntity && (entity instanceof Player || worldserver.purpurConfig.farmlandBypassMobGriefing || worldserver.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) && entity.getBbWidth() * entity.getBbWidth() * entity.getBbHeight() > 0.512F) { // Purpur
                 // CraftBukkit start - Interact soil
                 org.bukkit.event.Cancellable cancellable;
                 if (entity instanceof Player) {
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index ad407f1b3b343244e5323d022702cc075b910b48..b3382f2383f546ef53b4dd4c2187f39d8f027c01 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -925,6 +925,7 @@ public class PurpurWorldConfig {
     public boolean farmlandTramplingDisabled = false;
     public boolean farmlandTramplingOnlyPlayers = false;
     public boolean farmlandTramplingFeatherFalling = false;
+    public double farmlandTrampleHeight = -1D;
     private void farmlandSettings() {
         farmlandBypassMobGriefing = getBoolean("blocks.farmland.bypass-mob-griefing", farmlandBypassMobGriefing);
         farmlandGetsMoistFromBelow = getBoolean("blocks.farmland.gets-moist-from-below", farmlandGetsMoistFromBelow);
@@ -932,6 +933,7 @@ public class PurpurWorldConfig {
         farmlandTramplingDisabled = getBoolean("blocks.farmland.disable-trampling", farmlandTramplingDisabled);
         farmlandTramplingOnlyPlayers = getBoolean("blocks.farmland.only-players-trample", farmlandTramplingOnlyPlayers);
         farmlandTramplingFeatherFalling = getBoolean("blocks.farmland.feather-fall-distance-affects-trampling", farmlandTramplingFeatherFalling);
+        farmlandTrampleHeight = getDouble("blocks.farmland.trample-height", farmlandTrampleHeight);
     }
 
     public double floweringAzaleaGrowthChance = 0.0D;