From 7fdfb8644169a25805afd32f00ced38c1c14cec8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Havl=C3=AD=C4=8Dek?=
 <80639037+havel06@users.noreply.github.com>
Date: Wed, 25 Jan 2023 21:46:34 +0100
Subject: Allow certain blocks to be placed on top of upside-down stairs/slabs
 (#5468)

* Placing certain blocks on top of upside down slabs and stairs

* remove TODO

* fix style errors

* IsAnyStairType helper function

* Block placement on stairs and slabs
---
 src/Blocks/BlockRedstoneRepeater.h | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

(limited to 'src/Blocks/BlockRedstoneRepeater.h')

diff --git a/src/Blocks/BlockRedstoneRepeater.h b/src/Blocks/BlockRedstoneRepeater.h
index 4b9650e90..893691d7b 100644
--- a/src/Blocks/BlockRedstoneRepeater.h
+++ b/src/Blocks/BlockRedstoneRepeater.h
@@ -2,9 +2,11 @@
 #pragma once
 
 #include "BlockHandler.h"
+#include "BlockType.h"
 #include "Mixins.h"
 #include "ChunkInterface.h"
 #include "BlockSlab.h"
+#include "BlockStairs.h"
 #include "../Chunk.h"
 
 
@@ -120,14 +122,19 @@ private:
 		{
 			return true;
 		}
-		else if (cBlockSlabHandler::IsAnySlabType(BelowBlock))
+
+		// upside down slabs
+		if (cBlockSlabHandler::IsAnySlabType(BelowBlock))
 		{
-			// Check if the slab is turned up side down
-			if ((BelowBlockMeta & 0x08) == 0x08)
-			{
-				return true;
-			}
+			return BelowBlockMeta & E_META_WOODEN_SLAB_UPSIDE_DOWN;
 		}
+
+		// upside down stairs
+		if (cBlockStairsHandler::IsAnyStairType(BelowBlock))
+		{
+			return BelowBlockMeta & E_BLOCK_STAIRS_UPSIDE_DOWN;
+		}
+
 		return false;
 	}
 
-- 
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