Chain crash fix

Author: cakeGit

changelog.md

@@ -48,4 +48,7 @@
   - Chain drives NO LONGER HAVE GAPS between segments (this took way too long, but it's beautiful now)
 # 1.21.1-0.0.18
 - Changes:
-  - Added item requirement for printing headlamps
+  - Added item requirement for printing headlamps
+# 1.21.1-0.0.19
+- Fixes:
+  - Fixed crash related to chains

gradle.properties

@@ -31,7 +31,7 @@ mod_name=Create Bits 'n' Bobs
 # The license of the mod. Review your options at https://choosealicense.com/. All Rights Reserved is the default.
 mod_license=MIT
 # The mod version. See https://semver.org/
-mod_version=0.0.18
+mod_version=0.0.19
 # The group ID for the mod. It is only important when publishing as an artifact to a Maven repository.
 # This should match the base package used for the mod sources.
 # See https://maven.apache.org/guides/mini/guide-naming-conventions.html

src/main/java/com/kipti/bnb/content/cogwheel_chain/block/CogwheelChainBlockEntity.java

@@ -225,8 +225,8 @@ public float getChainRotationFactor() {
     }
 
     private void addPropogationLocationsFromController(final List<BlockPos> toPropagate, final BlockPos exclude) {
-        assert chain != null;
-        for (final var cogwheelNode : chain.getChainPathCogwheelNodes()) {
+        if (chain == null) return;
+        for (final PathedCogwheelNode cogwheelNode : chain.getChainPathCogwheelNodes()) {
             final BlockPos cogwheelPos = worldPosition.offset(cogwheelNode.localPos());
             if (!toPropagate.contains(cogwheelPos) && !cogwheelPos.equals(exclude)) {
                 toPropagate.add(cogwheelPos);