From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Encode42 <me@encode42.dev>
Date: Sun, 8 Aug 2021 22:50:23 -0400
Subject: [PATCH] Config to allow mobs to pathfind over rails


diff --git a/src/main/java/net/minecraft/world/item/ArmorItem.java b/src/main/java/net/minecraft/world/item/ArmorItem.java
index 6de04a38ad3708e5e51f4a4f528ac5e24c505e25..747bc81aef6e9e8a6d3b4384e30f7e97feefdc6a 100644
--- a/src/main/java/net/minecraft/world/item/ArmorItem.java
+++ b/src/main/java/net/minecraft/world/item/ArmorItem.java
@@ -148,7 +148,7 @@ public class ArmorItem extends Item implements Wearable {
             itemstack.setCount(0);
             // Purpur start
             return InteractionResultHolder.success(world.purpurConfig.playerArmorSwappingCreativeMakesCopy ? itemstack : ItemStack.EMPTY);
-        } else if (world.purpurConfig.playerArmorSwapping && !net.minecraft.world.item.enchantment.EnchantmentHelper.hasBindingCurse(itemstack)) {
+        } else if (world.purpurConfig.playerArmorSwapping && !net.minecraft.world.item.enchantment.EnchantmentHelper.hasBindingCurse(itemstack1)) {
             user.setItemSlot(enumitemslot, itemstack);
             user.awardStat(Stats.ITEM_USED.get(this));
             user.level.playSound(null, user.getX(), user.getY(), user.getZ(), itemstack.getEquipSound(), net.minecraft.sounds.SoundSource.BLOCKS, 1.0F, 1.0F); // we have to force the sound, for whatever reason
diff --git a/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java b/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java
index 60605a8a021cc56f9c3ba22bc43c43c302fb1a70..e7dc64c3ef715e3e58d79bb55546a1222c101edf 100644
--- a/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java
+++ b/src/main/java/net/minecraft/world/level/pathfinder/WalkNodeEvaluator.java
@@ -240,7 +240,7 @@ public class WalkNodeEvaluator extends NodeEvaluator {
             }
 
             if (blockPathTypes != BlockPathTypes.WALKABLE && (!this.isAmphibious() || blockPathTypes != BlockPathTypes.WATER)) {
-                if ((node == null || node.costMalus < 0.0F) && maxYStep > 0 && blockPathTypes != BlockPathTypes.FENCE && blockPathTypes != BlockPathTypes.UNPASSABLE_RAIL && blockPathTypes != BlockPathTypes.TRAPDOOR && blockPathTypes != BlockPathTypes.POWDER_SNOW) {
+                if ((node == null || node.costMalus < 0.0F) && maxYStep > 0 && blockPathTypes != BlockPathTypes.FENCE && !(!this.mob.level.purpurConfig.mobsIgnoreRails && blockPathTypes == BlockPathTypes.UNPASSABLE_RAIL) && blockPathTypes != BlockPathTypes.TRAPDOOR && blockPathTypes != BlockPathTypes.POWDER_SNOW) { // Purpur
                     node = this.findAcceptedNode(x, y + 1, z, maxYStep - 1, prevFeetY, direction, nodeType);
                     if (node != null && (node.type == BlockPathTypes.OPEN || node.type == BlockPathTypes.WALKABLE) && this.mob.getBbWidth() < 1.0F) {
                         double g = (double)(x - direction.getStepX()) + 0.5D;
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index fe13c25efe4c3696f20771f1bbdf256c56934a24..57c5e7c77079a214ce7fde850fe198005b2297cd 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -642,6 +642,7 @@ public class PurpurWorldConfig {
     public double voidDamageDealt = 4.0D;
     public int raidCooldownSeconds = 0;
     public int animalBreedingCooldownSeconds = 0;
+    public boolean mobsIgnoreRails = false;
     private void miscGameplayMechanicsSettings() {
         useBetterMending = getBoolean("gameplay-mechanics.use-better-mending", useBetterMending);
         alwaysTameInCreative = getBoolean("gameplay-mechanics.always-tame-in-creative", alwaysTameInCreative);
@@ -664,6 +665,7 @@ public class PurpurWorldConfig {
         voidDamageDealt = getDouble("gameplay-mechanics.void-damage-dealt", voidDamageDealt);
         raidCooldownSeconds = getInt("gameplay-mechanics.raid-cooldown-seconds", raidCooldownSeconds);
         animalBreedingCooldownSeconds = getInt("gameplay-mechanics.animal-breeding-cooldown-seconds", animalBreedingCooldownSeconds);
+        mobsIgnoreRails = getBoolean("gameplay-mechanics.mobs-ignore-rails", mobsIgnoreRails);
     }
 
     public Set<Block> noRandomTickBlocks = new HashSet<>();