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Fix crash on performWorldGenSpawning #349

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Fix crash on performWorldGenSpawning #349

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7 changes: 7 additions & 0 deletions src/main/java/untamedwilds/entity/ComplexMob.java
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Original file line number Diff line number Diff line change
Expand Up @@ -217,6 +217,13 @@ public boolean wantsToBreed() {

@SuppressWarnings("unchecked") // Don't use this outside ComplexMobs
public <T extends ComplexMob> void breed() {
// Just return early if we're not the main server thread
// AKA don't allow WorldGen ForkJoin-created entities to breed entities (since they were added off-thread)
// This might be due to wantsToBreed() returning true as long as naturalBreeding is not explicitly disabled
if (!(this.level instanceof ServerLevel serverLevel) || !serverLevel.getServer().isSameThread()) {
return;
}

int bound = 1 + (this.getOffspring() > 0 ? this.random.nextInt(this.getOffspring() + 1) : 0);
for (int i = 0; i < bound; i++) {
T child = (T) this.getBreedOffspring((ServerLevel) this.level, this);
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