From: Esteban I. RM <me@exio4.xyz>
Date: Sun, 15 Oct 2017 05:52:05 +0000 (-0300)
Subject: Don't try to craft a non-existent item
X-Git-Tag: 0.4.17~68
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=0041bcc73e04b9e24c0148c0a735d271d2d1b893;p=oweals%2Fminetest.git

Don't try to craft a non-existent item
---

diff --git a/src/craftdef.cpp b/src/craftdef.cpp
index 286d1eada..210fe9f03 100644
--- a/src/craftdef.cpp
+++ b/src/craftdef.cpp
@@ -923,8 +923,19 @@ public:
 					<< " against " << def->dump() << std::endl;*/
 
 				if (def->check(input, gamedef)) {
+					// Check if the crafted node/item exists
+					CraftOutput out = def->getOutput(input, gamedef);
+					ItemStack is;
+					is.deSerialize(out.item, gamedef->idef());
+					if (!is.isKnown(gamedef->idef())) {
+						infostream << "trying to craft non-existent "
+							<< out.item << ", ignoring recipe" << std::endl;
+						continue;
+					}
+
 					// Get output, then decrement input (if requested)
-					output = def->getOutput(input, gamedef);
+					output = out;
+                    
 					if (decrementInput)
 						def->decrementInput(input, output_replacement, gamedef);
 					/*errorstream << "Check RETURNS TRUE" << std::endl;*/