From 15bde565511e4d1e4eb4522df6cc938cf9e33ba0 Mon Sep 17 00:00:00 2001
From: Fabian Dill <Berserker66@users.noreply.github.com>
Date: Mon, 17 Feb 2025 18:58:38 +0100
Subject: [PATCH] Factorio: prevent invalid starting items count (#4658)

---
 worlds/factorio/Options.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/worlds/factorio/Options.py b/worlds/factorio/Options.py
index 4848cd99..fe72d386 100644
--- a/worlds/factorio/Options.py
+++ b/worlds/factorio/Options.py
@@ -235,6 +235,12 @@ class FactorioStartItems(OptionDict):
     """Mapping of Factorio internal item-name to amount granted on start."""
     display_name = "Starting Items"
     default = {"burner-mining-drill": 4, "stone-furnace": 4,  "raw-fish": 50}
+    schema = Schema(
+        {
+            str: And(int, lambda n: n > 0,
+                     error="amount of starting items has to be a positive integer"),
+        }
+    )
 
 
 class FactorioFreeSampleBlacklist(OptionSet):