From 34ad7dbfc9f828cda4c841732e574c68e3b0ebc0 Mon Sep 17 00:00:00 2001
From: DaPigGuy <mcpepig123@gmail.com>
Date: Sun, 26 Jan 2025 02:58:06 -0800
Subject: [PATCH] block/block.go: Also check liquid in `replaceableWith`

---
 server/block/block.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/server/block/block.go b/server/block/block.go
index a9736cd57..2c55d99b9 100644
--- a/server/block/block.go
+++ b/server/block/block.go
@@ -135,7 +135,14 @@ func replaceableWith(tx *world.Tx, pos cube.Pos, with world.Block) bool {
 	}
 	b := tx.Block(pos)
 	if replaceable, ok := b.(Replaceable); ok {
-		return replaceable.ReplaceableBy(with) && b != with
+		if !replaceable.ReplaceableBy(with) || b == with {
+			return false
+		}
+		if liquid, ok := tx.Liquid(pos); ok {
+			replaceable, ok := liquid.(Replaceable)
+			return ok && replaceable.ReplaceableBy(with)
+		}
+		return true
 	}
 	return false
 }