Fix being able to place fluids in compact sky hub

Also disable flowing fluids while we're at it.

Fixes #397

Author: davenonymous

src/main/java/org/dave/compactmachines3/skyworld/SkyWorldEvents.java

@@ -7,6 +7,7 @@
 import net.minecraft.util.text.TextComponentTranslation;
 import net.minecraft.world.World;
 import net.minecraft.world.WorldServer;
+import net.minecraftforge.event.entity.player.PlayerInteractEvent;
 import net.minecraftforge.event.world.BlockEvent;
 import net.minecraftforge.event.world.WorldEvent;
 import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
@@ -98,6 +99,40 @@ public static void createSpawnPoint(WorldEvent.CreateSpawnPosition event) {
         event.setCanceled(true);
     }
 
+    @SubscribeEvent
+    public static void preventUsingItemsInHub(PlayerInteractEvent.RightClickItem event) {
+        World world = event.getWorld();
+        if(world.isRemote || !(world instanceof WorldServer)) {
+            return;
+        }
+
+        WorldServer worldServer = (WorldServer)world;
+        if(!(worldServer.getChunkProvider().chunkGenerator instanceof SkyChunkGenerator)) {
+            return;
+        }
+
+        if(ShrinkingDeviceUtils.isShrinkingDevice(event.getItemStack())) {
+            return;
+        }
+
+        event.setCanceled(true);
+    }
+
+    @SubscribeEvent
+    public static void preventFlowingFluidsInHub(BlockEvent.FluidPlaceBlockEvent event) {
+        World world = event.getWorld();
+        if(world.isRemote || !(world instanceof WorldServer)) {
+            return;
+        }
+
+        WorldServer worldServer = (WorldServer)world;
+        if(!(worldServer.getChunkProvider().chunkGenerator instanceof SkyChunkGenerator)) {
+            return;
+        }
+
+        event.setCanceled(true);
+    }
+
     @SubscribeEvent
     public static void preventPlacingInHub(BlockEvent.PlaceEvent event) {
         World world = event.getWorld();