added the hopper enhancement

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

@@ -0,0 +1,10 @@
+package de.ellpeck.naturesaura.blocks;
+
+import de.ellpeck.naturesaura.blocks.tiles.TileEntityHopperUpgrade;
+import net.minecraft.block.material.Material;
+
+public class BlockHopperUpgrade extends BlockContainerImpl {
+    public BlockHopperUpgrade() {
+        super(Material.IRON, "hopper_upgrade", TileEntityHopperUpgrade.class, "hopper_upgrade");
+    }
+}

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

@@ -30,4 +30,5 @@ public final class ModBlocks {
     public static final Block CONVERSION_CATALYST = new BlockImpl("conversion_catalyst", Material.ROCK).setSoundType(SoundType.STONE).setHardness(2.5F);
     public static final Block FLOWER_GENERATOR = new BlockFlowerGenerator();
     public static final Block PLACER = new BlockPlacer();
+    public static final Block HOPPER_UPGRADE = new BlockHopperUpgrade();
 }

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

@@ -0,0 +1,70 @@
+package de.ellpeck.naturesaura.blocks.tiles;
+
+import de.ellpeck.naturesaura.aura.chunk.AuraChunk;
+import de.ellpeck.naturesaura.packet.PacketHandler;
+import de.ellpeck.naturesaura.packet.PacketParticles;
+import net.minecraft.block.BlockHopper;
+import net.minecraft.entity.item.EntityItem;
+import net.minecraft.item.ItemStack;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.tileentity.TileEntityHopper;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.ITickable;
+import net.minecraft.util.math.AxisAlignedBB;
+import net.minecraft.util.math.BlockPos;
+import net.minecraftforge.items.CapabilityItemHandler;
+import net.minecraftforge.items.IItemHandler;
+
+import java.util.List;
+
+public class TileEntityHopperUpgrade extends TileEntityImpl implements ITickable {
+    @Override
+    public void update() {
+        if (!this.world.isRemote && this.world.getTotalWorldTime() % 10 == 0) {
+            if (AuraChunk.getAuraInArea(this.world, this.pos, 25) < 1000)
+                return;
+            TileEntity tile = this.world.getTileEntity(this.pos.down());
+            if (!(tile instanceof TileEntityHopper) || !BlockHopper.isEnabled(tile.getBlockMetadata()))
+                return;
+            TileEntityHopper hopper = (TileEntityHopper) tile;
+            if (!hopper.hasCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, EnumFacing.UP))
+                return;
+            IItemHandler handler = hopper.getCapability(CapabilityItemHandler.ITEM_HANDLER_CAPABILITY, EnumFacing.UP);
+            if (handler == null)
+                return;
+
+            List<EntityItem> items = this.world.getEntitiesWithinAABB(EntityItem.class,
+                    new AxisAlignedBB(this.pos).grow(7));
+            if (items.isEmpty())
+                return;
+
+            for (EntityItem item : items) {
+                if (item.isDead || item.cannotPickup())
+                    continue;
+                ItemStack stack = item.getItem();
+                if (stack.isEmpty())
+                    continue;
+                ItemStack copy = stack.copy();
+
+                for (int i = 0; i < handler.getSlots(); i++) {
+                    copy = handler.insertItem(i, copy, false);
+                    if (copy.isEmpty()) {
+                        break;
+                    }
+                }
+
+                if (!ItemStack.areItemStacksEqual(stack, copy)) {
+                    item.setItem(copy);
+                    if (copy.isEmpty())
+                        item.setDead();
+
+                    BlockPos spot = AuraChunk.getHighestSpot(this.world, this.pos, 25, this.pos);
+                    AuraChunk.getAuraChunk(this.world, spot).drainAura(spot, 10);
+
+                    PacketHandler.sendToAllAround(this.world, this.pos, 32,
+                            new PacketParticles((float) item.posX, (float) item.posY, (float) item.posZ, 10));
+                }
+            }
+        }
+    }
+}

src/main/java/de/ellpeck/naturesaura/packet/PacketParticles.java

@@ -188,6 +188,14 @@ public class PacketParticles implements IMessage {
                                         0xad7a37, world.rand.nextFloat() + 1F, 50, 0F, true, true);
                             }
                             break;
+                        case 10: // Hopper upgrade picking up
+                            for (int i = world.rand.nextInt(20) + 10; i >= 0; i--)
+                                NaturesAura.proxy.spawnMagicParticle(world,
+                                        message.posX, message.posY + 0.45F, message.posZ,
+                                        world.rand.nextGaussian() * 0.015F,
+                                        world.rand.nextGaussian() * 0.015F,
+                                        world.rand.nextGaussian() * 0.015F,
+                                        0xdde7ff, world.rand.nextFloat() + 1F, 30, -0.06F, true, true);
                     }
                 }
             });

src/main/java/de/ellpeck/naturesaura/particles/ParticleMagic.java

@@ -29,9 +29,9 @@ public class ParticleMagic extends Particle {
         this.motionY = motionY;
         this.motionZ = motionZ;
 
-        float r = (((color >> 16) & 255) / 255F) * (1F - this.rand.nextFloat() * 0.35F);
-        float g = (((color >> 8) & 255) / 255F) * (1F - this.rand.nextFloat() * 0.35F);
-        float b = ((color & 255) / 255F) * (1F - this.rand.nextFloat() * 0.35F);
+        float r = (((color >> 16) & 255) / 255F) * (1F - this.rand.nextFloat() * 0.25F);
+        float g = (((color >> 8) & 255) / 255F) * (1F - this.rand.nextFloat() * 0.25F);
+        float b = ((color & 255) / 255F) * (1F - this.rand.nextFloat() * 0.25F);
         this.setRBGColorF(r, g, b);
 
         TextureMap map = Minecraft.getMinecraft().getTextureMapBlocks();

src/main/resources/assets/naturesaura/blockstates/hopper_upgrade.json

@@ -0,0 +1,14 @@
+{
+    "forge_marker": 1,
+    "defaults": {
+        "model": "minecraft:cube_all",
+        "textures": {
+            "all": "naturesaura:blocks/hopper_upgrade"
+        },
+        "transform": "forge:default-block"
+    },
+    "variants": {
+        "normal": [{}],
+        "inventory": [{}]
+    }
+}

src/main/resources/assets/naturesaura/lang/en_US.lang

@@ -27,6 +27,7 @@ tile.naturesaura.infused_brick_slab.name=Infused Brick Slab
 tile.naturesaura.infused_brick_slab_double.name=Infused Brick Double Slab
 tile.naturesaura.flower_generator.name=Herbivorous Absorber
 tile.naturesaura.placer.name=Imperceptible Builder
+tile.naturesaura.hopper_upgrade.name=Hopper Enhancement
 
 item.naturesaura.eye.name=Environmental Eye
 item.naturesaura.gold_fiber.name=Brilliant Fiber

src/main/resources/assets/naturesaura/patchouli_books/book/en_us/entries/using/hopper_upgrade.json

@@ -0,0 +1,17 @@
+{
+    "name": "Hopper Enhancement",
+    "icon": "naturesaura:hopper_upgrade",
+    "category": "using",
+    "advancement": "naturesaura:infused_materials",
+    "pages": [
+        {
+            "type": "text",
+            "text": "Collecting items using $(item)Hoppers$() is useful, but sometimes, it can be inconvenient, especially if given a big area that one has to collect items in. For that, the $(item)Hopper Enhancement$() will be a help: By simply placing it on top of any $(item)Hopper$(), it will increase its range of picking up items drastically by about $(thing)seven$() blocks.$(br)When collecting an item, it then uses a small amount of $(aura)."
+        },
+        {
+            "type": "crafting",
+            "text": "Creating the $(item)Hopper Enhancement$()",
+            "recipe": "naturesaura:hopper_upgrade"
+        }
+    ]
+}

src/main/resources/assets/naturesaura/recipes/hopper_upgrade.json

@@ -0,0 +1,26 @@
+{
+    "type": "forge:ore_shaped",
+    "pattern": [
+        "RIR",
+        "IEI",
+        "RHR"
+    ],
+    "key": {
+        "H": {
+            "item": "minecraft:hopper"
+        },
+        "I": {
+            "item": "naturesaura:infused_iron"
+        },
+        "R": {
+            "type": "forge:ore_dict",
+            "ore": "ingotIron"
+        },
+        "E": {
+            "item": "minecraft:ender_pearl"
+        }
+    },
+    "result": {
+        "item": "naturesaura:hopper_upgrade"
+    }
+}