From 6433eb04f2e9d01319a138980323bd56e4769acb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tam=C3=A1s=20B=C3=A1lint=20Misius?= <lbphacker@gmail.com>
Date: Tue, 12 Dec 2023 19:47:14 +0100
Subject: [PATCH] Fix extremely rare pmap corruption

c4dcb37de40e added a kill_part without a return 1.

Reproduce with

	sim.loadSave(3062273, 1)
	sim.ensureDeterminism(true)
	tpt.setfpscap(2)
	local function F()
		print(sim.framerender(), sim.randomseed())
		if sim.framerender() == 0 then
			local a = 2247503365
			print(sim.hash(), a)
			sim.framerender(1200)
			sim.reloadSave()
			sim.randomseed(a, a + 1, a + 2, a + 3)
			tpt.set_pause(0)
		end
	end
	event.register(event.tick, F)
---
 src/simulation/elements/PROT.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/simulation/elements/PROT.cpp b/src/simulation/elements/PROT.cpp
index 6dfa398c9..3575c2331 100644
--- a/src/simulation/elements/PROT.cpp
+++ b/src/simulation/elements/PROT.cpp
@@ -108,7 +108,10 @@ static int update(UPDATE_FUNC_ARGS)
 		if (parts[i].life)
 		{
 			if (!--parts[i].life)
+			{
 				sim->kill_part(i);
+				return 1;
+			}
 		}
 		break;
 	default: