finished code cleanup

src/main/java/eu/mhsl/minecraft/pixelblocks/listeners/PreventLiquidsFlowListener.java

@@ -0,0 +1,17 @@
+package eu.mhsl.minecraft.pixelblocks.listeners;
+
+import eu.mhsl.minecraft.pixelblocks.utils.EventCanceling;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockFromToEvent;
+
+public class PreventLiquidsFlowListener implements Listener {
+    @EventHandler
+    public static void onLiquidFlow(BlockFromToEvent event) {
+        EventCanceling.shouldCancelInPixelBlock(
+                event,
+                event.getToBlock().getWorld(),
+                pixelBlock -> !pixelBlock.getPixelWorld().allowPlacements(event.getToBlock().getLocation())
+        );
+    }
+}