make the ender crate use aura

src/main/java/de/ellpeck/naturesaura/blocks/BlockEnderCrate.java

@@ -6,7 +6,6 @@ import de.ellpeck.naturesaura.blocks.tiles.render.RenderEnderCrate;
 import de.ellpeck.naturesaura.reg.ITESRProvider;
 import net.minecraft.block.SoundType;
 import net.minecraft.block.material.Material;
-import net.minecraft.block.state.BlockFaceShape;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
 import net.minecraft.entity.player.EntityPlayer;
@@ -16,7 +15,6 @@ import net.minecraft.util.EnumHand;
 import net.minecraft.util.EnumParticleTypes;
 import net.minecraft.util.Tuple;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import net.minecraftforge.fml.relauncher.Side;
 import net.minecraftforge.fml.relauncher.SideOnly;
@@ -37,8 +35,10 @@ public class BlockEnderCrate extends BlockContainerImpl implements ITESRProvider
             TileEntity tile = worldIn.getTileEntity(pos);
             if (tile instanceof TileEntityEnderCrate) {
                 TileEntityEnderCrate crate = (TileEntityEnderCrate) tile;
-                if (crate.canOpen())
+                if (crate.canOpen()) {
+                    crate.drainAura(5000);
                     playerIn.openGui(NaturesAura.MOD_ID, 0, worldIn, pos.getX(), pos.getY(), pos.getZ());
+                }
             }
         }
         return true;

src/main/java/de/ellpeck/naturesaura/blocks/tiles/TileEntityEnderCrate.java

@@ -1,20 +1,68 @@
 package de.ellpeck.naturesaura.blocks.tiles;
 
+import de.ellpeck.naturesaura.api.aura.chunk.IAuraChunk;
 import de.ellpeck.naturesaura.api.misc.IWorldData;
 import net.minecraft.block.state.IBlockState;
 import net.minecraft.item.ItemStack;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.EnumFacing;
+import net.minecraft.util.math.BlockPos;
 import net.minecraftforge.items.IItemHandlerModifiable;
 
+import javax.annotation.Nonnull;
+
 public class TileEntityEnderCrate extends TileEntityImpl {
 
+    private final IItemHandlerModifiable wrappedEnderStorage = new IItemHandlerModifiable() {
+        @Override
+        public void setStackInSlot(int slot, @Nonnull ItemStack stack) {
+            this.getStorage().setStackInSlot(slot, stack);
+        }
+
+        @Override
+        public int getSlots() {
+            return this.getStorage().getSlots();
+        }
+
+        @Nonnull
+        @Override
+        public ItemStack getStackInSlot(int slot) {
+            return this.getStorage().getStackInSlot(slot);
+        }
+
+        @Nonnull
+        @Override
+        public ItemStack insertItem(int slot, @Nonnull ItemStack stack, boolean simulate) {
+            ItemStack remain = this.getStorage().insertItem(slot, stack, simulate);
+            if (!simulate)
+                TileEntityEnderCrate.this.drainAura((stack.getCount() - remain.getCount()) * 200);
+            return remain;
+        }
+
+        @Nonnull
+        @Override
+        public ItemStack extractItem(int slot, int amount, boolean simulate) {
+            ItemStack extracted = this.getStorage().extractItem(slot, amount, simulate);
+            if (!simulate)
+                TileEntityEnderCrate.this.drainAura(extracted.getCount() * 200);
+            return extracted;
+        }
+
+        @Override
+        public int getSlotLimit(int slot) {
+            return this.getStorage().getSlotLimit(slot);
+        }
+
+        private IItemHandlerModifiable getStorage() {
+            return IWorldData.getOverworldData(TileEntityEnderCrate.this.world).getEnderStorage(TileEntityEnderCrate.this.name);
+        }
+    };
     public String name;
 
     @Override
     public IItemHandlerModifiable getItemHandler(EnumFacing facing) {
         if (this.canOpen())
-            return IWorldData.getOverworldData(this.world).getEnderStorage(this.name);
+            return this.wrappedEnderStorage;
         return null;
     }
 
@@ -58,4 +106,11 @@ public class TileEntityEnderCrate extends TileEntityImpl {
                 this.name = compound.getString("name");
         }
     }
+
+    public void drainAura(int amount) {
+        if (amount > 0) {
+            BlockPos spot = IAuraChunk.getHighestSpot(this.world, this.pos, 35, this.pos);
+            IAuraChunk.getAuraChunk(this.world, spot).drainAura(spot, amount);
+        }
+    }
 }

src/main/java/de/ellpeck/naturesaura/items/ItemEnderAccess.java

@@ -1,6 +1,7 @@
 package de.ellpeck.naturesaura.items;
 
 import de.ellpeck.naturesaura.NaturesAura;
+import de.ellpeck.naturesaura.api.NaturesAuraAPI;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.ActionResult;
@@ -19,8 +20,9 @@ public class ItemEnderAccess extends ItemImpl {
             return new ActionResult<>(EnumActionResult.PASS, playerIn.getHeldItem(handIn));
         ItemStack stack = playerIn.getHeldItemMainhand();
         if (stack.hasDisplayName()) {
-            if (!worldIn.isRemote)
+            if (!worldIn.isRemote && NaturesAuraAPI.instance().extractAuraFromPlayer(playerIn, 5000, false)) {
                 playerIn.openGui(NaturesAura.MOD_ID, 1, worldIn, (int) playerIn.posX, (int) playerIn.posY, (int) playerIn.posZ);
+            }
             return new ActionResult<>(EnumActionResult.SUCCESS, stack);
         }
         return new ActionResult<>(EnumActionResult.FAIL, stack);