Complete backend rework of the EIG (#2616)

* Complete backend rework of the EIG

* Mergening Related Updates

Also some loader references refactoring

* fix

(cherry picked from commit 7fd5d7417bddfb6e49ede3986d9a547f15b21289)

* More Mergening fixes

Updates the declaration of the stem mixin to match the new format.

* Inline EIG IC2 bucket constants

addresses: https://github.com/GTNewHorizons/GT5-Unofficial/pull/2616#discussion_r1620596497

* Fix Seed Removal in regular seed simulations

Should address https://github.com/GTNewHorizons/GT5-Unofficial/pull/2616#discussion_r1620583338

---------

Co-authored-by: Guillaume Mercier <10gui-gui10@live.ca>
Co-authored-by: Martin Robertz <dream-master@gmx.net>

11 files changed, 1299 insertions, 1 deletions

diff --git a/src/main/java/kubatech/api/EIGDynamicInventory.java b/src/main/java/kubatech/api/EIGDynamicInventory.java
new file mode 100644
index 0000000000..1c703fe2fa
--- /dev/null
+++ b/src/main/java/kubatech/api/EIGDynamicInventory.java
@@ -0,0 +1,510 @@
+package kubatech.api;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+import java.util.function.Supplier;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.entity.player.EntityPlayerMP;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumChatFormatting;
+
+import org.lwjgl.opengl.GL11;
+
+import com.gtnewhorizons.modularui.api.GlStateManager;
+import com.gtnewhorizons.modularui.api.ModularUITextures;
+import com.gtnewhorizons.modularui.api.drawable.IDrawable;
+import com.gtnewhorizons.modularui.api.drawable.ItemDrawable;
+import com.gtnewhorizons.modularui.api.drawable.UITexture;
+import com.gtnewhorizons.modularui.api.math.Alignment;
+import com.gtnewhorizons.modularui.api.math.Color;
+import com.gtnewhorizons.modularui.api.screen.ModularWindow;
+import com.gtnewhorizons.modularui.api.screen.UIBuildContext;
+import com.gtnewhorizons.modularui.api.widget.Widget;
+import com.gtnewhorizons.modularui.common.internal.Theme;
+import com.gtnewhorizons.modularui.common.internal.wrapper.ModularGui;
+import com.gtnewhorizons.modularui.common.widget.ButtonWidget;
+import com.gtnewhorizons.modularui.common.widget.ChangeableWidget;
+import com.gtnewhorizons.modularui.common.widget.DynamicPositionedRow;
+import com.gtnewhorizons.modularui.common.widget.FakeSyncWidget;
+import com.gtnewhorizons.modularui.common.widget.Scrollable;
+import com.kuba6000.mobsinfo.api.utils.ItemID;
+
+import kubatech.api.gui.AutoScalingStackSizeText;
+import kubatech.api.helpers.GTHelper;
+import kubatech.api.utils.ModUtils;
+
+public class EIGDynamicInventory<T> {
+
+    int width, height;
+    Supplier<Integer> maxSeedCountGetter;
+    Supplier<Integer> maxSeedTypeGetter;
+    Supplier<Integer> usedSeedCountGetter;
+    Supplier<Integer> usedSeedTypesGetter;
+    private int maxSeedTypes = 0;
+    private int maxSeedCount = 0;
+    private int usedSeedTypes = 0;
+    private int usedSeedCount = 0;
+    List<T> inventory;
+    TInventoryGetter<T> inventoryGetter;
+    TInventoryInjector inventoryInjector = null;
+    TInventoryExtractor<T> inventoryExtractor = null;
+    TInventoryReplacerOrMerger inventoryReplacer = null;
+    Supplier<Boolean> isEnabledGetter = null;
+    boolean isEnabled = true;
+
+    public EIGDynamicInventory(int width, int height, Supplier<Integer> maxSeedTypeGetter,
+        Supplier<Integer> maxSeedCountGetter, Supplier<Integer> usedSeedTypesGetter,
+        Supplier<Integer> usedSeedCountGetter, List<T> inventory, TInventoryGetter<T> inventoryGetter) {
+        this.width = width;
+        this.height = height;
+        this.maxSeedTypeGetter = maxSeedTypeGetter;
+        this.maxSeedCountGetter = maxSeedCountGetter;
+        this.usedSeedTypesGetter = usedSeedTypesGetter;
+        this.usedSeedCountGetter = usedSeedCountGetter;
+        this.inventory = inventory;
+        this.inventoryGetter = inventoryGetter;
+    }
+
+    public EIGDynamicInventory<T> allowInventoryInjection(TInventoryInjector inventoryInjector) {
+        this.inventoryInjector = inventoryInjector;
+        return this;
+    }
+
+    public EIGDynamicInventory<T> allowInventoryExtraction(TInventoryExtractor<T> inventoryExtractor) {
+        this.inventoryExtractor = inventoryExtractor;
+        return this;
+    }
+
+    public EIGDynamicInventory<T> allowInventoryReplace(TInventoryReplacerOrMerger inventoryReplacer) {
+        this.inventoryReplacer = inventoryReplacer;
+        return this;
+    }
+
+    public EIGDynamicInventory<T> setEnabled(Supplier<Boolean> isEnabled) {
+        this.isEnabledGetter = isEnabled;
+        return this;
+    }
+
+    public UITexture getItemSlot() {
+        return ModularUITextures.ITEM_SLOT;
+    }
+
+    @SuppressWarnings("UnstableApiUsage")
+    public Widget asWidget(ModularWindow.Builder builder, UIBuildContext buildContext) {
+        ChangeableWidget container = new ChangeableWidget(() -> createWidget(buildContext.getPlayer()));
+        // TODO: Only reset the widget when there are more slot stacks, otherwise just refresh them somehow
+
+        container
+            // max seed types
+            .attachSyncer(new FakeSyncWidget.IntegerSyncer(() -> {
+                int i = this.maxSeedTypeGetter.get();
+                if (this.maxSeedTypes != i) {
+                    this.maxSeedTypes = i;
+                    container.notifyChangeNoSync();
+                }
+                return i;
+            }, i -> {
+                if (this.maxSeedTypes != i) {
+                    this.maxSeedTypes = i;
+                    container.notifyChangeNoSync();
+                }
+            }), builder)
+            // used seed types
+            .attachSyncer(new FakeSyncWidget.IntegerSyncer(() -> {
+                int i = this.usedSeedTypesGetter.get();
+                if (this.usedSeedTypes != i) {
+                    this.usedSeedTypes = i;
+                    container.notifyChangeNoSync();
+                }
+                return i;
+            }, i -> {
+                if (this.usedSeedTypes != i) {
+                    this.usedSeedTypes = i;
+                    container.notifyChangeNoSync();
+                }
+            }), builder)
+            // max seed count
+            .attachSyncer(new FakeSyncWidget.IntegerSyncer(() -> {
+                int i = this.maxSeedCountGetter.get();
+                if (this.maxSeedCount != i) {
+                    this.maxSeedCount = i;
+                    container.notifyChangeNoSync();
+                }
+                return i;
+            }, i -> {
+                if (this.maxSeedCount != i) {
+                    this.maxSeedCount = i;
+                    container.notifyChangeNoSync();
+                }
+            }), builder)
+            // used seed count
+            .attachSyncer(new FakeSyncWidget.IntegerSyncer(() -> {
+                int i = this.usedSeedCountGetter.get();
+                if (this.usedSeedCount != i) {
+                    this.usedSeedCount = i;
+                    container.notifyChangeNoSync();
+                }
+                return i;
+            }, i -> {
+                if (this.usedSeedCount != i) {
+                    this.usedSeedCount = i;
+                    container.notifyChangeNoSync();
+                }
+            }), builder)
+
+            .attachSyncer(new FakeSyncWidget.ListSyncer<>(() -> {
+                List<GTHelper.StackableItemSlot> newDrawables = new ArrayList<>();
+                for (int i = 0, mStorageSize = inventory.size(); i < mStorageSize; i++) {
+                    T slot = inventory.get(i);
+                    if (slot == null) {
+                        continue;
+                    }
+                    ItemStack stack = inventoryGetter.get(slot);
+                    newDrawables
+                        .add(new GTHelper.StackableItemSlot(1, stack, new ArrayList<>(Collections.singletonList(i))));
+                }
+                if (!Objects.equals(newDrawables, drawables)) {
+                    drawables = newDrawables;
+                    container.notifyChangeNoSync();
+                }
+                return drawables;
+            }, l -> {
+                drawables.clear();
+                drawables.addAll(l);
+                container.notifyChangeNoSync();
+            }, (buffer, i) -> {
+                try {
+                    i.write(buffer);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }, buffer -> {
+                try {
+                    return GTHelper.StackableItemSlot.read(buffer);
+                } catch (IOException e) {
+                    throw new RuntimeException(e);
+                }
+            }), builder);
+        if (isEnabledGetter != null) {
+            container.attachSyncer(new FakeSyncWidget.BooleanSyncer(isEnabledGetter, i -> isEnabled = i), builder);
+        }
+        return container;
+    }
+
+    List<GTHelper.StackableItemSlot> drawables = new ArrayList<>();
+
+    private Widget createWidget(EntityPlayer player) {
+        Scrollable dynamicInventoryWidget = new Scrollable().setVerticalScroll();
+
+        ArrayList<Widget> buttons = new ArrayList<>();
+
+        if (!ModUtils.isClientThreaded()) {
+            HashMap<ItemID, Integer> itemMap = new HashMap<>();
+            HashMap<ItemID, ItemStack> stackMap = new HashMap<>();
+            HashMap<ItemID, ArrayList<Integer>> realSlotMap = new HashMap<>();
+            drawables = new ArrayList<>();
+            for (int i = 0, inventorySize = inventory.size(); i < inventorySize; i++) {
+                T slot = inventory.get(i);
+                if (slot == null) {
+                    continue;
+                }
+                ItemStack stack = inventoryGetter.get(slot);
+                drawables
+                    .add(new GTHelper.StackableItemSlot(1, stack, new ArrayList<Integer>(Collections.singleton(i))));
+            }
+        }
+
+        for (int ID = 0; ID < drawables.size(); ID++) {
+            final int finalID = ID;
+
+            buttons.add(new ButtonWidget() {
+
+                @Override
+                public void drawBackground(float partialTicks) {
+                    super.drawBackground(partialTicks);
+                    if (!isEnabled) {
+                        GL11.glDisable(GL11.GL_LIGHTING);
+                        GL11.glEnable(GL11.GL_BLEND);
+                        GlStateManager.colorMask(true, true, true, false);
+                        ModularGui.drawSolidRect(1, 1, 16, 16, Color.withAlpha(Color.BLACK.normal, 0x80));
+                        GlStateManager.colorMask(true, true, true, true);
+                        GL11.glDisable(GL11.GL_BLEND);
+                    }
+                    // Copied from SlotWidget#draw
+                    else if (isHovering() && !getContext().getCursor()
+                        .hasDraggable()) {
+                            GL11.glDisable(GL11.GL_LIGHTING);
+                            GL11.glEnable(GL11.GL_BLEND);
+                            GlStateManager.colorMask(true, true, true, false);
+                            ModularGui.drawSolidRect(1, 1, 16, 16, Theme.INSTANCE.getSlotHighlight());
+                            GlStateManager.colorMask(true, true, true, true);
+                            GL11.glDisable(GL11.GL_BLEND);
+                        }
+                }
+            }.setPlayClickSound(false)
+                .setOnClick((clickData, widget) -> {
+                    if (!(player instanceof EntityPlayerMP)) return;
+                    if (!isEnabledGetter.get()) return;
+
+                    if (clickData.mouseButton == 2) {
+                        // special button handler goes here
+                        if (drawables.size() <= finalID) return;
+                        if (player.capabilities.isCreativeMode && player.inventory.getItemStack() == null) {
+                            int realID = drawables.get(finalID).realSlots.get(0);
+                            ItemStack stack = inventoryGetter.get(inventory.get(realID))
+                                .copy();
+                            stack.stackSize = stack.getMaxStackSize();
+                            player.inventory.setItemStack(stack);
+                            ((EntityPlayerMP) player).isChangingQuantityOnly = false;
+                            ((EntityPlayerMP) player).updateHeldItem();
+                            return;
+                        }
+                    } else if (clickData.shift) {
+                        if (inventoryExtractor == null) return;
+                        if (drawables.size() <= finalID) return;
+                        int realID = drawables.get(finalID).realSlots.get(0);
+                        T toRemoveFrom = this.inventory.get(realID);
+                        ItemStack removed = this.inventoryExtractor.extract(toRemoveFrom, (EntityPlayerMP) player);
+                        if (removed != null) {
+                            if (player.inventory.addItemStackToInventory(removed))
+                                player.inventoryContainer.detectAndSendChanges();
+                            else player.entityDropItem(removed, 0.f);
+                            return;
+                        }
+                    } else {
+                        ItemStack input = player.inventory.getItemStack();
+                        if (input != null) {
+                            if (inventoryInjector == null) return;
+                            if (clickData.mouseButton == 1) {
+                                ItemStack copy = input.copy();
+                                copy.stackSize = 1;
+                                inventoryInjector.inject(copy);
+                                if (copy.stackSize == 1) return;
+                                input.stackSize--;
+                                if (input.stackSize > 0) {
+                                    // clearing and updating the held item value like this is the only
+                                    // way i found to be able to reliably update the item count in the UI.
+                                    player.inventory.setItemStack(null);
+                                    ((EntityPlayerMP) player).updateHeldItem();
+                                    player.inventory.setItemStack(input);
+                                    ((EntityPlayerMP) player).updateHeldItem();
+                                    return;
+                                } else player.inventory.setItemStack(null);
+                            } else {
+                                inventoryInjector.inject(input);
+                                if (input.stackSize > 0) {
+                                    // clearing and updating the held item value like this is the only
+                                    // way i found to be able to reliably update the item count in the UI.
+                                    player.inventory.setItemStack(null);
+                                    ((EntityPlayerMP) player).updateHeldItem();
+                                    player.inventory.setItemStack(input);
+                                    ((EntityPlayerMP) player).updateHeldItem();
+                                    return;
+                                } else player.inventory.setItemStack(null);
+                            }
+                            ((EntityPlayerMP) player).isChangingQuantityOnly = false;
+                            ((EntityPlayerMP) player).updateHeldItem();
+                            return;
+                        }
+                        if (drawables.size() > finalID) {
+                            if (inventoryExtractor == null) return;
+                            int realID = drawables.get(finalID).realSlots.get(0);
+                            T toRemoveFrom = this.inventory.get(realID);
+                            ItemStack removed = this.inventoryExtractor.extract(toRemoveFrom, (EntityPlayerMP) player);
+                            if (removed != null) {
+                                player.inventory.setItemStack(removed);
+                                ((EntityPlayerMP) player).isChangingQuantityOnly = false;
+                                ((EntityPlayerMP) player).updateHeldItem();
+                                return;
+                            }
+                        }
+                    }
+                })
+                .setBackground(() -> {
+                    ItemStack stack = drawables.get(finalID).stack;
+                    float slotSize = 16.0f;
+                    IDrawable itemDrawable = new ItemDrawable(stack).withFixedSize(slotSize, slotSize, 1, 1);
+                    IDrawable stackSizeText = new AutoScalingStackSizeText(stack.stackSize).color(Color.WHITE.normal)
+                        .shadow()
+                        .alignment(Alignment.BottomRight)
+                        .measure();
+
+                    return new IDrawable[] { getItemSlot(), itemDrawable, stackSizeText };
+                })
+                .dynamicTooltip(() -> {
+                    if (drawables.size() > finalID) {
+                        ItemStack stack = drawables.get(finalID).stack;
+                        List<String> tip = new LinkedList<>();
+                        for (Object o : stack.getTooltip(player, false)) {
+                            tip.add(o.toString());
+                        }
+                        if (tip.size() >= 1 && tip.get(0) != null) {
+                            tip.set(0, stack.stackSize + " x " + tip.get(0));
+                        }
+                        return tip;
+                    }
+                    return Collections.emptyList();
+                })
+                .setSize(18, 18));
+        }
+
+        // only add the extra slot if we are still able to insert
+        if (this.usedSeedCount < this.maxSeedCount) {
+            buttons.add(new ButtonWidget() {
+
+                @Override
+                public void drawBackground(float partialTicks) {
+                    super.drawBackground(partialTicks);
+                    if (!isEnabled) {
+                        GL11.glDisable(GL11.GL_LIGHTING);
+                        GL11.glEnable(GL11.GL_BLEND);
+                        GlStateManager.colorMask(true, true, true, false);
+                        ModularGui.drawSolidRect(1, 1, 16, 16, Color.withAlpha(Color.BLACK.normal, 0x80));
+                        GlStateManager.colorMask(true, true, true, true);
+                        GL11.glDisable(GL11.GL_BLEND);
+                    }
+                    // Copied from SlotWidget#draw
+                    else if (isHovering() && !getContext().getCursor()
+                        .hasDraggable()) {
+                            GL11.glDisable(GL11.GL_LIGHTING);
+                            GL11.glEnable(GL11.GL_BLEND);
+                            GlStateManager.colorMask(true, true, true, false);
+                            ModularGui.drawSolidRect(1, 1, 16, 16, Theme.INSTANCE.getSlotHighlight());
+                            GlStateManager.colorMask(true, true, true, true);
+                            GL11.glDisable(GL11.GL_BLEND);
+                        }
+                }
+            }.setPlayClickSound(false)
+                .setOnClick((clickData, widget) -> {
+                    if (!(player instanceof EntityPlayerMP)) return;
+                    if (!isEnabledGetter.get()) return;
+                    ItemStack input = player.inventory.getItemStack();
+                    if (input != null) {
+                        if (clickData.mouseButton == 1) {
+                            ItemStack copy = input.copy();
+                            copy.stackSize = 1;
+                            inventoryInjector.inject(copy);
+                            if (copy.stackSize == 1) return;
+
+                            input.stackSize--;
+                            if (input.stackSize > 0) {
+                                // clearing and updating the held item value like this is the only
+                                // way i found to be able to reliably update the item count in the UI.
+                                player.inventory.setItemStack(null);
+                                ((EntityPlayerMP) player).updateHeldItem();
+                                player.inventory.setItemStack(input);
+                                ((EntityPlayerMP) player).updateHeldItem();
+                                return;
+                            } else player.inventory.setItemStack(null);
+                        } else {
+                            inventoryInjector.inject(input);
+                            if (input.stackSize > 0) {
+                                // clearing and updating the held item value like this is the only
+                                // way i found to be able to reliably update the item count in the UI.
+                                player.inventory.setItemStack(null);
+                                ((EntityPlayerMP) player).updateHeldItem();
+                                player.inventory.setItemStack(input);
+                                ((EntityPlayerMP) player).updateHeldItem();
+                                return;
+                            } else player.inventory.setItemStack(null);
+                        }
+                        ((EntityPlayerMP) player).isChangingQuantityOnly = false;
+                        ((EntityPlayerMP) player).updateHeldItem();
+                        return;
+                    }
+                })
+                .setBackground(() -> {
+                    IDrawable itemSlot = getItemSlot();
+
+                    IDrawable stackSizeText = new AutoScalingStackSizeText(this.maxSeedCount - this.usedSeedCount)
+                        .color(Color.WHITE.normal)
+                        .shadow()
+                        .alignment(Alignment.BottomRight)
+                        .measure();
+
+                    return new IDrawable[] { itemSlot, stackSizeText };
+                })
+                .dynamicTooltip(() -> {
+                    // TODO: all l10n for insertion slot tooltip.
+                    List<String> tip = new ArrayList<>();
+                    tip.add(
+                        EnumChatFormatting.DARK_PURPLE + "Remaining seed types: "
+                            + (this.maxSeedTypes - this.usedSeedTypes));
+                    tip.add(
+                        EnumChatFormatting.DARK_GREEN + "Remaining seed capacity: "
+                            + (this.maxSeedCount - this.usedSeedCount));
+                    return tip;
+                })
+                .setSize(18, 18));
+        }
+
+        final int perRow = width / 18;
+        for (int i = 0, imax = ((buttons.size() - 1) / perRow); i <= imax; i++) {
+            DynamicPositionedRow row = new DynamicPositionedRow().setSynced(false);
+            for (int j = 0, jmax = (i == imax ? (buttons.size() - 1) % perRow : (perRow - 1)); j <= jmax; j++) {
+                final int finalI = i * perRow;
+                final int finalJ = j;
+                final int ID = finalI + finalJ;
+                row.widget(buttons.get(ID));
+            }
+            dynamicInventoryWidget.widget(row.setPos(0, i * 18));
+        }
+        dynamicInventoryWidget.setSize(width, height);
+        return dynamicInventoryWidget;
+    }
+
+    @FunctionalInterface
+    public interface TInventoryGetter<T> {
+
+        /**
+         * Allows to get an ItemStack from the dynamic inventory
+         *
+         * @param from Dynamic inventory item from which we want to take an item out
+         * @return ItemStack or null if inaccessible
+         */
+        ItemStack get(T from);
+    }
+
+    @FunctionalInterface
+    public interface TInventoryInjector {
+
+        /**
+         * Allows to insert an item to the dynamic inventory
+         *
+         * @param what ItemStack which we are trying to insert
+         * @return Leftover ItemStack (stackSize == 0 if everything has been inserted) or null
+         */
+        ItemStack inject(ItemStack what);
+    }
+
+    @FunctionalInterface
+    public interface TInventoryExtractor<T> {
+
+        /**
+         * Allows to extract an item from the dynamic inventory
+         *
+         * @return Item that we took out or null
+         */
+        ItemStack extract(T container, EntityPlayerMP player);
+    }
+
+    @FunctionalInterface
+    public interface TInventoryReplacerOrMerger {
+
+        /**
+         * Allows to replace an item in Dynamic Inventory
+         *
+         * @param where which index we want to replace
+         * @param stack what stack we want to replace it with
+         * @return Stack that we are left with or null
+         */
+        ItemStack replaceOrMerge(int where, ItemStack stack);
+    }
+
+}
diff --git a/src/main/java/kubatech/api/IBlockStemAccesor.java b/src/main/java/kubatech/api/IBlockStemAccesor.java
new file mode 100644
index 0000000000..8f2c37e15f
--- /dev/null
+++ b/src/main/java/kubatech/api/IBlockStemAccesor.java
@@ -0,0 +1,8 @@
+package kubatech.api;
+
+import net.minecraft.block.Block;
+
+public interface IBlockStemAccesor {
+
+    Block getCropBlock();
+}
diff --git a/src/main/java/kubatech/api/eig/EIGBucket.java b/src/main/java/kubatech/api/eig/EIGBucket.java
new file mode 100644
index 0000000000..6a3dbdb642
--- /dev/null
+++ b/src/main/java/kubatech/api/eig/EIGBucket.java
@@ -0,0 +1,247 @@
+package kubatech.api.eig;
+
+import static kubatech.api.utils.ItemUtils.readItemStackFromNBT;
+import static kubatech.api.utils.ItemUtils.writeItemStackToNBT;
+
+import java.util.LinkedList;
+
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.util.EnumChatFormatting;
+
+import gregtech.api.util.GT_Utility;
+import kubatech.tileentity.gregtech.multiblock.GT_MetaTileEntity_ExtremeIndustrialGreenhouse;
+
+public abstract class EIGBucket {
+
+    protected ItemStack seed;
+    protected int seedCount;
+    protected ItemStack[] supportItems;
+
+    public EIGBucket(ItemStack seed, int seedCount, ItemStack[] supportItem) {
+        this.seed = seed.copy();
+        this.seed.stackSize = 1;
+        this.seedCount = seedCount;
+        this.supportItems = supportItem;
+    }
+
+    public EIGBucket(NBTTagCompound nbt) {
+        this.seed = readItemStackFromNBT(nbt.getCompoundTag("seed"));
+        this.seedCount = nbt.getInteger("count");
+
+        // parse support items
+        if (nbt.hasKey("supportItems", 9)) {
+            NBTTagList supportItemsNBTList = nbt.getTagList("supportItems", 10);
+            if (supportItemsNBTList.tagCount() > 0) {
+                this.supportItems = new ItemStack[supportItemsNBTList.tagCount()];
+                for (int i = 0; i < supportItemsNBTList.tagCount(); i++) {
+                    this.supportItems[i] = readItemStackFromNBT(supportItemsNBTList.getCompoundTagAt(i));
+                }
+            } else {
+                supportItems = null;
+            }
+        } else {
+            supportItems = null;
+        }
+    }
+
+    /**
+     * Creates a persistent save of the bucket's current data.
+     *
+     * @return The nbt data for this bucket.
+     */
+    public NBTTagCompound save() {
+        NBTTagCompound nbt = new NBTTagCompound();
+        nbt.setString("type", this.getNBTIdentifier());
+        nbt.setTag("seed", writeItemStackToNBT(this.seed));
+        nbt.setInteger("count", this.seedCount);
+        if (this.supportItems != null && this.supportItems.length > 0) {
+            NBTTagList supportItemNBT = new NBTTagList();
+            for (ItemStack supportItem : this.supportItems) {
+                supportItemNBT.appendTag(writeItemStackToNBT(supportItem));
+            }
+            nbt.setTag("supportItems", supportItemNBT);
+        }
+        return nbt;
+    }
+
+    /**
+     * Gets an item stack representing the seeds in this bucket
+     *
+     * @return an item stack representing the seeds in this bucket.
+     */
+    public ItemStack getSeedStack() {
+        ItemStack copied = this.seed.copy();
+        copied.stackSize = this.seedCount;
+        return copied;
+    }
+
+    /**
+     * Gets the number of seeds in this bucket
+     *
+     * @return gets the number of seeds in this bucket.
+     */
+    public int getSeedCount() {
+        return this.seedCount;
+    }
+
+    /**
+     * Gets the display name of the seed in this bucket
+     *
+     * @return The display name of the seed.
+     */
+    public String getDisplayName() {
+        return this.seed.getDisplayName();
+    }
+
+    public String getInfoData() {
+        StringBuilder sb = new StringBuilder();
+        // display invalid buckets, we don't want people to think they lost their seeds or something.
+        sb.append(this.isValid() ? EnumChatFormatting.GREEN : EnumChatFormatting.RED);
+        sb.append("x");
+        sb.append(this.getSeedCount());
+        sb.append(" ");
+        sb.append(this.getDisplayName());
+        this.getAdditionalInfoData(sb);
+        sb.append(EnumChatFormatting.RESET);
+        return sb.toString();
+    }
+
+    protected void getAdditionalInfoData(StringBuilder sb) {}
+
+    /**
+     * Attempts to add seeds to tbe bucket if the input is compatible
+     *
+     * @param input      A stack of an item that may be able to be added to our current bucket.
+     * @param maxConsume The maximum amount of seeds to add to this bucket.
+     * @param simulate   True if you want to see if you can add more seeds (useful for support item checks)
+     * @return number of seeds consumed, 0 for wrong item, -1 if it missed the support items, -2 if you tried to consume
+     *         0 or less items;
+     */
+    public int tryAddSeed(GT_MetaTileEntity_ExtremeIndustrialGreenhouse greenhouse, ItemStack input, int maxConsume,
+        boolean simulate) {
+        // Abort is input if empty
+        if (input == null || input.stackSize <= 0) return -2;
+        // Cap max to input count
+        maxConsume = Math.min(maxConsume, input.stackSize);
+        // Abort if item isn't an identical seed.
+        if (!GT_Utility.areStacksEqual(this.seed, input, false)) return 0;
+
+        // no support items, consume and exit early.
+        if (this.supportItems == null || this.supportItems.length <= 0) {
+            if (!simulate) {
+                input.stackSize -= maxConsume;
+                this.seedCount += maxConsume;
+            }
+            return maxConsume;
+        }
+
+        // Check if the item is found
+        LinkedList<ItemStack> toConsumeFrom = new LinkedList<>();
+        supportLoop: for (ItemStack supportItem : this.supportItems) {
+            for (ItemStack otherInput : greenhouse.getStoredInputs()) {
+                // filter usable inputs
+                if (otherInput == null || otherInput.stackSize <= 0) continue;
+                if (!GT_Utility.areStacksEqual(supportItem, otherInput, false)) continue;
+                // update max consume again
+                maxConsume = Math.min(maxConsume, otherInput.stackSize);
+                toConsumeFrom.addLast(otherInput);
+                continue supportLoop;
+            }
+            // no support found, no seeds added
+            return -1;
+        }
+
+        // consume items
+        if (!simulate) {
+            input.stackSize -= maxConsume;
+            for (ItemStack stack : toConsumeFrom) {
+                stack.stackSize -= maxConsume;
+            }
+            this.seedCount += maxConsume;
+        }
+        return maxConsume;
+    }
+
+    /**
+     * Attempts to remove a seed from the bucket
+     *
+     * @param toRemove The maximum amount of items to remove.
+     * @return The items that were removed from the bucket. Null if the bucket is empty.
+     */
+    public ItemStack[] tryRemoveSeed(int toRemove, boolean simulate) {
+        // validate inputs
+        toRemove = Math.min(this.seedCount, toRemove);
+        if (toRemove <= 0) return null;
+
+        // consume and return output
+        ItemStack[] ret = new ItemStack[1 + (this.supportItems == null ? 0 : this.supportItems.length)];
+        ret[0] = this.seed.copy();
+        ret[0].stackSize = toRemove;
+        if (this.supportItems != null) {
+            for (int i = 0; i < this.supportItems.length; i++) {
+                ret[i + 1] = this.supportItems[i].copy();
+                ret[i + 1].stackSize = toRemove;
+            }
+        }
+        if (!simulate) {
+            this.seedCount -= toRemove;
+        }
+        return ret;
+    }
+
+    /**
+     * Sets the seed count to 0 and returns item stacks representing every item in this bucket.
+     *
+     * @return The contents of the bucket
+     */
+    public ItemStack[] emptyBucket() {
+        if (this.seedCount <= 0) return null;
+        ItemStack[] ret = new ItemStack[1 + (this.supportItems == null ? 0 : this.supportItems.length)];
+        ret[0] = this.seed.copy();
+        ret[0].stackSize = this.seedCount;
+        if (this.supportItems != null) {
+            for (int i = 0; i < this.supportItems.length; i++) {
+                ret[i + 1] = this.supportItems[i].copy();
+                ret[i + 1].stackSize = this.seedCount;
+            }
+        }
+        this.seedCount = 0;
+        return ret;
+    }
+
+    /**
+     * Returns true if the bucket can output items.
+     *
+     * @return true if the bucket is valid.
+     */
+    public boolean isValid() {
+        return this.seed != null && this.seedCount > 0;
+    }
+
+    /**
+     * Gets the identifier used to identify this class during reconstruction
+     *
+     * @return the identifier for this bucket type.
+     */
+    protected abstract String getNBTIdentifier();
+
+    /**
+     * Adds item drops to the item tracker.
+     *
+     * @param multiplier A multiplier to apply to the output.
+     * @param tracker    The item drop tracker
+     */
+    public abstract void addProgress(double multiplier, EIGDropTable tracker);
+
+    /**
+     * Attempts to revalidate a seed bucket. If it returns false, attempt to seed and support items and delete the
+     * bucket.
+     *
+     * @param greenhouse The greenhouse that contains the bucket.
+     * @return True if the bucket was successfully validated. {@link EIGBucket#isValid()} should also return true.
+     */
+    public abstract boolean revalidate(GT_MetaTileEntity_ExtremeIndustrialGreenhouse greenhouse);
+
+}
diff --git a/src/main/java/kubatech/api/eig/EIGDropTable.java b/src/main/java/kubatech/api/eig/EIGDropTable.java
new file mode 100644
index 0000000000..bb5bbe6456
--- /dev/null
+++ b/