allowed plopping of all sorts of structures regardless of required conditions

src/main/java/carpet/mixins/StructureGeneratorFactory_plopMixin.java

@@ -0,0 +1,23 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.structure.StructureGeneratorFactory;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.function.Predicate;
+
+@Mixin(StructureGeneratorFactory.class)
+public interface StructureGeneratorFactory_plopMixin
+{
+    @SuppressWarnings("UnresolvedMixinReference")
+    @Redirect(method = "method_39845(Ljava/util/function/Predicate;Ljava/util/Optional;Lnet/minecraft/structure/StructureGeneratorFactory$Context;)Ljava/util/Optional;", at = @At(
+            value = "INVOKE",
+            target = "java/util/function/Predicate.test(Ljava/lang/Object;)Z"
+    ))
+    private static boolean checkMate(Predicate<Object> predicate, Object o)
+    {
+        return CarpetSettings.skipGenerationChecks.get() || predicate.test(o);
+    }
+}

src/main/resources/carpet.mixins.json

@@ -102,6 +102,7 @@
     "ChunkRegion_scarpetPlopMixin",
     "StructurePiece_scarpetPlopMixin",
     "PlacedFeature_scarpetMixin",
+    "StructureGeneratorFactory_plopMixin",
 
     "ServerPlayNetworkHandler_scarpetEventsMixin",
     "ServerPlayerInteractionManager_scarpetEventsMixin",