From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Wed, 24 Mar 2021 04:40:11 -0500
Subject: [PATCH] Option to make doors require redstone


diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java b/src/main/java/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java
index 3513b15f6622bfc134ecfcd9129f81a8acc2c601..6e70579a58a1bf906b176b81713e55318199cef6 100644
--- a/src/main/java/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java
@@ -57,7 +57,7 @@ public class InteractWithDoor {
 
                         if (iblockdata.is(BlockTags.MOB_INTERACTABLE_DOORS, (blockbase_blockdata) -> {
                             return blockbase_blockdata.getBlock() instanceof DoorBlock;
-                        })) {
+        }) && !DoorBlock.requiresRedstone(entityliving.level(), iblockdata, blockposition)) { // Purpur
                             DoorBlock blockdoor = (DoorBlock) iblockdata.getBlock();
 
                             if (!blockdoor.isOpen(iblockdata)) {
@@ -79,7 +79,7 @@ public class InteractWithDoor {
 
                         if (iblockdata1.is(BlockTags.MOB_INTERACTABLE_DOORS, (blockbase_blockdata) -> {
                             return blockbase_blockdata.getBlock() instanceof DoorBlock;
-                        })) {
+        }) && !DoorBlock.requiresRedstone(entityliving.level(), iblockdata, blockposition1)) { // Purpur
                             DoorBlock blockdoor1 = (DoorBlock) iblockdata1.getBlock();
 
                             if (!blockdoor1.isOpen(iblockdata1)) {
@@ -122,7 +122,7 @@ public class InteractWithDoor {
 
                     if (!iblockdata.is(BlockTags.MOB_INTERACTABLE_DOORS, (blockbase_blockdata) -> {
                         return blockbase_blockdata.getBlock() instanceof DoorBlock;
-                    })) {
+                        }) || DoorBlock.requiresRedstone(entity.level(), iblockdata, blockposition)) { // Purpur
                         iterator.remove();
                     } else {
                         DoorBlock blockdoor = (DoorBlock) iblockdata.getBlock();
diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
index 485a49bb13532177a949938d4b99c934518a0af1..dac073bf9626bd8198c912241d4ca36d90b8441c 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
@@ -157,8 +157,8 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
                 }
                 if (level().purpurConfig.wanderingTraderRidable && itemstack.isEmpty()) return tryRide(player, hand); // Purpur
                 if (this.level().purpurConfig.wanderingTraderAllowTrading) { // Purpur
-                this.setTradingPlayer(player);
-                this.openTradingScreen(player, this.getDisplayName(), 1);
+                    this.setTradingPlayer(player);
+                    this.openTradingScreen(player, this.getDisplayName(), 1);
                 } // Purpur
             }
 
diff --git a/src/main/java/net/minecraft/world/level/block/DoorBlock.java b/src/main/java/net/minecraft/world/level/block/DoorBlock.java
index 077b99caf0ec0ee098786d23194d88e1dc4481ce..daf865c20cc193a12db0d98e3c0472eefdf635c2 100644
--- a/src/main/java/net/minecraft/world/level/block/DoorBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/DoorBlock.java
@@ -200,6 +200,7 @@ public class DoorBlock extends Block {
     protected InteractionResult useWithoutItem(BlockState state, Level world, BlockPos pos, Player player, BlockHitResult hit) {
         if (!this.type.canOpenByHand()) {
             return InteractionResult.PASS;
+        } else if (requiresRedstone(world, state, pos)) { return InteractionResult.CONSUME; // Purpur
         } else {
             state = (BlockState) state.cycle(DoorBlock.OPEN);
             world.setBlock(pos, state, 10);
@@ -301,4 +302,18 @@ public class DoorBlock extends Block {
         flag = false;
         return flag;
     }
+
+    // Purpur start
+    public static boolean requiresRedstone(Level level, BlockState state, BlockPos pos) {
+        if (level.purpurConfig.doorRequiresRedstone.contains(state.getBlock())) {
+            // force update client
+            BlockPos otherPos = pos.relative(state.getValue(DoorBlock.HALF) == DoubleBlockHalf.LOWER ? Direction.UP : Direction.DOWN);
+            BlockState otherState = level.getBlockState(otherPos);
+            level.sendBlockUpdated(pos, state, state, 3);
+            level.sendBlockUpdated(otherPos, otherState, otherState, 3);
+            return true;
+        }
+        return false;
+    }
+    // Purpur end
 }
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 4c751f6b66536ad976c9b8fc936bda38ea12f6e5..c11e68ba894df3e21d499920585df8128bf7429f 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -462,6 +462,16 @@ public class PurpurWorldConfig {
         dispenserPlaceAnvils = getBoolean("blocks.dispenser.place-anvils", dispenserPlaceAnvils);
     }
 
+    public List<Block> doorRequiresRedstone = new ArrayList<>();
+    private void doorSettings() {
+        getList("blocks.door.requires-redstone", new ArrayList<String>()).forEach(key -> {
+            Block block = BuiltInRegistries.BLOCK.get(ResourceLocation.parse(key.toString()));
+            if (!block.defaultBlockState().isAir()) {
+                doorRequiresRedstone.add(block);
+            }
+        });
+    }
+
     public boolean baselessEndCrystalExplode = true;
     public double baselessEndCrystalExplosionPower = 6.0D;
     public boolean baselessEndCrystalExplosionFire = false;