fill stuff

src/main/java/carpet/mixins/World_fillUpdatesMixin.java

@@ -0,0 +1,19 @@
+package carpet.mixins;
+
+import carpet.CarpetSettings;
+import net.minecraft.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.Constant;
+import org.spongepowered.asm.mixin.injection.ModifyConstant;
+
+@Mixin(World.class)
+public abstract class World_fillUpdatesMixin
+{
+    @ModifyConstant(method = "setBlockState(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;I)Z",
+            constant = @Constant(intValue = 16))
+    private int addFillUpdatesInt(int original) {
+        if (CarpetSettings.impendingFillSkipUpdates)
+            return -1;
+        return original;
+    }
+}