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/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java b/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java
index 3513b15f6622bfc134ecfcd9129f81a8acc2c601..2768e2a61ab7fbd82c2b8787e715163a7b0450b9 100644
--- a/net/minecraft/world/entity/ai/behavior/InteractWithDoor.java
+++ b/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 - Option to make doors require redstone
                             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 - Option to make doors require redstone
                             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 - Option to make doors require redstone
                         iterator.remove();
                     } else {
                         DoorBlock blockdoor = (DoorBlock) iblockdata.getBlock();
diff --git a/net/minecraft/world/level/block/DoorBlock.java b/net/minecraft/world/level/block/DoorBlock.java
index 077b99caf0ec0ee098786d23194d88e1dc4481ce..f8356e468841137dcc92b2fe5db1cafa24619eaf 100644
--- a/net/minecraft/world/level/block/DoorBlock.java
+++ b/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 - Option to make doors require redstone
         } 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 - Option to make doors require redstone
+    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 - Option to make doors require redstone
 }
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 0c3438c1914d6ec828c270fecfc7cf101fcfd211..88f2cf0023540a2fed5be6f7929e46dc7144673c 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -466,6 +466,16 @@ 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.getValue(ResourceLocation.parse(key.toString()));
+            if (!block.defaultBlockState().isAir()) {
+                doorRequiresRedstone.add(block);
+            }
+        });
+    }
+
     public boolean baselessEndCrystalExplode = true;
     public double baselessEndCrystalExplosionPower = 6.0D;
     public boolean baselessEndCrystalExplosionFire = false;