Relocate most of the internal classes to match the api

Signed-off-by: shedaniel <daniel@shedaniel.me>

4 files changed, 785 insertions, 0 deletions

diff --git a/runtime/src/main/java/me/shedaniel/rei/plugin/client/DefaultClientRuntimePlugin.java b/runtime/src/main/java/me/shedaniel/rei/plugin/client/DefaultClientRuntimePlugin.java
new file mode 100644
index 000000000..d1a88efc7
--- /dev/null
+++ b/runtime/src/main/java/me/shedaniel/rei/plugin/client/DefaultClientRuntimePlugin.java
@@ -0,0 +1,250 @@
+/*
+ * This file is licensed under the MIT License, part of Roughly Enough Items.
+ * Copyright (c) 2018, 2019, 2020 shedaniel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package me.shedaniel.rei.plugin.client;
+
+import com.google.gson.JsonObject;
+import com.mojang.blaze3d.vertex.PoseStack;
+import me.shedaniel.architectury.fluid.FluidStack;
+import me.shedaniel.math.Point;
+import me.shedaniel.math.Rectangle;
+import me.shedaniel.rei.api.client.ClientHelper;
+import me.shedaniel.rei.api.client.favorites.FavoriteEntry;
+import me.shedaniel.rei.api.client.favorites.FavoriteEntryType;
+import me.shedaniel.rei.api.client.gui.AbstractRenderer;
+import me.shedaniel.rei.api.client.gui.Renderer;
+import me.shedaniel.rei.api.client.gui.widgets.Panel;
+import me.shedaniel.rei.api.client.gui.widgets.Tooltip;
+import me.shedaniel.rei.api.client.util.ClientEntryStacks;
+import me.shedaniel.rei.api.client.plugins.REIClientPlugin;
+import me.shedaniel.rei.api.client.registry.entry.EntryRegistry;
+import me.shedaniel.rei.api.client.registry.screen.DisplayBoundsProvider;
+import me.shedaniel.rei.api.client.registry.screen.ExclusionZones;
+import me.shedaniel.rei.api.client.registry.screen.ScreenRegistry;
+import me.shedaniel.rei.api.client.registry.transfer.TransferHandlerRegistry;
+import me.shedaniel.rei.api.common.fluid.FluidSupportProvider;
+import me.shedaniel.rei.api.common.entry.EntryStack;
+import me.shedaniel.rei.api.common.entry.type.EntryTypeRegistry;
+import me.shedaniel.rei.api.common.entry.type.VanillaEntryTypes;
+import me.shedaniel.rei.api.common.util.EntryStacks;
+import me.shedaniel.rei.impl.client.gui.screen.AbstractDisplayViewingScreen;
+import me.shedaniel.rei.impl.client.gui.ContainerScreenOverlay;
+import me.shedaniel.rei.impl.client.gui.screen.DefaultDisplayViewingScreen;
+import me.shedaniel.rei.impl.client.gui.widget.FavoritesListWidget;
+import me.shedaniel.rei.impl.client.ClientHelperImpl;
+import me.shedaniel.rei.plugin.autocrafting.DefaultCategoryHandler;
+import me.shedaniel.rei.plugin.client.entry.FluidEntryDefinition;
+import me.shedaniel.rei.plugin.client.entry.ItemEntryDefinition;
+import net.fabricmc.api.EnvType;
+import net.fabricmc.api.Environment;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.gui.screens.Screen;
+import net.minecraft.network.chat.TextComponent;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.GsonHelper;
+import net.minecraft.world.InteractionResult;
+import net.minecraft.world.InteractionResultHolder;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Collections;
+import java.util.Optional;
+import java.util.function.Function;
+import java.util.stream.Stream;
+
+@ApiStatus.Internal
+@Environment(EnvType.CLIENT)
+public class DefaultClientRuntimePlugin implements REIClientPlugin {
+    public static final ResourceLocation PLUGIN = new ResourceLocation("roughlyenoughitems", "default_runtime_plugin");
+    
+    @Override
+    public void registerEntryTypes(EntryTypeRegistry registry) {
+        registry.register(VanillaEntryTypes.ITEM, new ItemEntryDefinition());
+        registry.register(VanillaEntryTypes.FLUID, new FluidEntryDefinition());
+        
+        registry.registerBridge(VanillaEntryTypes.ITEM, VanillaEntryTypes.FLUID, input -> {
+            Optional<Stream<EntryStack<FluidStack>>> stream = FluidSupportProvider.getInstance().itemToFluids(input);
+            if (!stream.isPresent()) {
+                return InteractionResultHolder.pass(Stream.empty());
+            }
+            return InteractionResultHolder.success(stream.get());
+        });
+    }
+    
+    @Override
+    public void registerEntries(EntryRegistry registry) {
+        if (ClientHelperImpl.getInstance().isAprilFools.get()) {
+            registry.registerEntry(ClientEntryStacks.of(new AbstractRenderer() {
+                private ResourceLocation id = new ResourceLocation("roughlyenoughitems", "textures/gui/kirb.png");
+                
+                @Override
+                public void render(PoseStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {
+                    Minecraft.getInstance().getTextureManager().bind(id);
+                    innerBlit(matrices.last().pose(), bounds.x, bounds.getMaxX(), bounds.y, bounds.getMaxY(), getBlitOffset(), 0, 1, 0, 1);
+                }
+                
+                @Override
+                public @Nullable Tooltip getTooltip(Point point) {
+                    return Tooltip.create(new TextComponent("Kirby"), ClientHelper.getInstance().getFormattedModFromModId("Dream Land"));
+                }
+            }));
+        }
+    }
+    
+    @Override
+    public void registerScreens(ScreenRegistry registry) {
+        ExclusionZones zones = registry.exclusionZones();
+        zones.register(DefaultDisplayViewingScreen.class, screen -> {
+            Panel widget = screen.getWorkingStationsBaseWidget();
+            if (widget == null)
+                return Collections.emptyList();
+            return Collections.singletonList(widget.getBounds().clone());
+        });
+        zones.register(Screen.class, screen -> {
+            FavoritesListWidget widget = ContainerScreenOverlay.getFavoritesListWidget();
+            if (widget != null) {
+                if (widget.favoritePanelButton.isVisible()) {
+                    return Collections.singletonList(widget.favoritePanelButton.bounds);
+                }
+            }
+            return Collections.emptyList();
+        });
+        registry.registerDecider(new DisplayBoundsProvider<AbstractDisplayViewingScreen>() {
+            @Override
+            public Rectangle getScreenBounds(AbstractDisplayViewingScreen screen) {
+                return screen.getBounds();
+            }
+    
+            @Override
+            public <R extends Screen> boolean isHandingScreen(Class<R> screen) {
+                return  AbstractDisplayViewingScreen.class.isAssignableFrom(screen);
+            }
+    
+            @Override
+            public InteractionResult shouldScreenBeOverlaid(Class<?> screen) {
+                return InteractionResult.SUCCESS;
+            }
+        });
+    }
+    
+    @Override
+    public void registerFavorites(FavoriteEntryType.Registry registry) {
+        registry.register(EntryStackFavoriteType.INSTANCE.id, EntryStackFavoriteType.INSTANCE);
+    }
+    
+    @Override
+    public void registerTransferHandlers(TransferHandlerRegistry registry) {
+        registry.register(new DefaultCategoryHandler());
+    }
+    
+    private enum EntryStackFavoriteType implements FavoriteEntryType<EntryStackFavoriteEntry> {
+        INSTANCE(FavoriteEntryType.ENTRY_STACK);
+        
+        private final String key = "data";
+        private ResourceLocation id;
+        
+        EntryStackFavoriteType(ResourceLocation id) {
+            this.id = id;
+        }
+        
+        @Override
+        public EntryStackFavoriteEntry fromJson(JsonObject object) {
+            return new EntryStackFavoriteEntry(EntryStack.readFromJson(GsonHelper.getAsJsonObject(object, key)));
+        }
+        
+        @Override
+        public EntryStackFavoriteEntry fromArgs(Object... args) {
+            return new EntryStackFavoriteEntry((EntryStack<?>) args[0]);
+        }
+        
+        @Override
+        public JsonObject toJson(EntryStackFavoriteEntry entry, JsonObject object) {
+            object.add(key, entry.stack.toJson());
+            return object;
+        }
+    }
+    
+    private static class EntryStackFavoriteEntry extends FavoriteEntry {
+        private static final Function<EntryStack<?>, String> CANCEL_FLUID_AMOUNT = s -> null;
+        private final EntryStack<?> stack;
+        private final int hashIgnoreAmount;
+        
+        public EntryStackFavoriteEntry(EntryStack<?> stack) {
+            this.stack = stack.normalize();
+            this.hashIgnoreAmount = EntryStacks.hashExact(this.stack);
+        }
+        
+        @Override
+        public boolean isInvalid() {
+            return this.stack.isEmpty();
+        }
+        
+        @Override
+        public Renderer getRenderer(boolean showcase) {
+            return this.stack;
+        }
+        
+        @Override
+        public boolean doAction(int button) {
+            if (!ClientHelper.getInstance().isCheating()) return false;
+            EntryStack<?> entry = stack.copy();
+            if (!entry.isEmpty()) {
+                if (entry.getValueType() == FluidStack.class) {
+                    Item bucketItem = ((FluidStack) entry.getValue()).getFluid().getBucket();
+                    if (bucketItem != null) {
+                        entry = EntryStacks.of(bucketItem);
+                    }
+                }
+                if (entry.getType() == VanillaEntryTypes.ITEM)
+                    entry.<ItemStack>cast().getValue().setCount(button != 1 && !Screen.hasShiftDown() ? 1 : ((ItemStack) entry.getValue()).getMaxStackSize());
+                return ClientHelper.getInstance().tryCheatingEntry(entry);
+            }
+            
+            return false;
+        }
+        
+        @Override
+        public int hashIgnoreAmount() {
+            return hashIgnoreAmount;
+        }
+        
+        @Override
+        public FavoriteEntry copy() {
+            return new EntryStackFavoriteEntry(stack.normalize());
+        }
+        
+        @Override
+        public ResourceLocation getType() {
+            return EntryStackFavoriteType.INSTANCE.id;
+        }
+        
+        @Override
+        public boolean isSame(FavoriteEntry other) {
+            if (!(other instanceof EntryStackFavoriteEntry)) return false;
+            EntryStackFavoriteEntry that = (EntryStackFavoriteEntry) other;
+            return EntryStacks.equalsExact(stack, that.stack);
+        }
+    }
+}
diff --git a/runtime/src/main/java/me/shedaniel/rei/plugin/client/entry/FluidEntryDefinition.java b/runtime/src/main/java/me/shedaniel/rei/plugin/client/entry/FluidEntryDefinition.java
new file mode 100644
index 000000000..ad2373811
--- /dev/null
+++ b/runtime/src/main/java/me/shedaniel/rei/plugin/client/entry/FluidEntryDefinition.java
@@ -0,0 +1,210 @@
+/*
+ * This file is licensed under the MIT License, part of Roughly Enough Items.
+ * Copyright (c) 2018, 2019, 2020 shedaniel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package me.shedaniel.rei.plugin.client.entry;
+
+import com.google.common.collect.Lists;
+import com.mojang.blaze3d.vertex.BufferBuilder;
+import com.mojang.blaze3d.vertex.DefaultVertexFormat;
+import com.mojang.blaze3d.vertex.PoseStack;
+import com.mojang.blaze3d.vertex.Tesselator;
+import com.mojang.math.Matrix4f;
+import me.shedaniel.architectury.fluid.FluidStack;
+import me.shedaniel.architectury.hooks.FluidStackHooks;
+import me.shedaniel.architectury.platform.Platform;
+import me.shedaniel.architectury.utils.Fraction;
+import me.shedaniel.math.Point;
+import me.shedaniel.math.Rectangle;
+import me.shedaniel.rei.api.client.gui.widgets.Tooltip;
+import me.shedaniel.rei.api.client.entry.renderer.AbstractEntryRenderer;
+import me.shedaniel.rei.api.client.entry.renderer.EntryRenderer;
+import me.shedaniel.rei.api.common.entry.EntryStack;
+import me.shedaniel.rei.api.common.entry.EntrySerializer;
+import me.shedaniel.rei.api.common.entry.comparison.ComparisonContext;
+import me.shedaniel.rei.api.common.entry.type.EntryDefinition;
+import me.shedaniel.rei.api.common.entry.type.EntryType;
+import me.shedaniel.rei.api.common.entry.type.VanillaEntryTypes;
+import me.shedaniel.rei.api.common.util.EntryStacks;
+import net.minecraft.ChatFormatting;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.texture.TextureAtlas;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.client.resources.language.I18n;
+import net.minecraft.core.Registry;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.TextComponent;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagCollection;
+import net.minecraft.world.level.material.Fluid;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class FluidEntryDefinition implements EntryDefinition<FluidStack>, EntrySerializer<FluidStack> {
+    private static final String FLUID_AMOUNT = Platform.isForge() ? "tooltip.rei.fluid_amount.forge" : "tooltip.rei.fluid_amount";
+    private final EntryRenderer<FluidStack> renderer = new FluidEntryRenderer();
+    
+    @Override
+    public Class<FluidStack> getValueType() {
+        return FluidStack.class;
+    }
+    
+    @Override
+    public EntryType<FluidStack> getType() {
+        return VanillaEntryTypes.FLUID;
+    }
+    
+    @Override
+    public EntryRenderer<FluidStack> getRenderer() {
+        return renderer;
+    }
+    
+    @Override
+    @Nullable
+    public ResourceLocation getIdentifier(EntryStack<FluidStack> entry, FluidStack value) {
+        return Registry.FLUID.getKey(value.getFluid());
+    }
+    
+    @Override
+    public boolean isEmpty(EntryStack<FluidStack> entry, FluidStack value) {
+        return value.isEmpty();
+    }
+    
+    @Override
+    public FluidStack copy(EntryStack<FluidStack> entry, FluidStack value) {
+        return value.copy();
+    }
+    
+    @Override
+    public FluidStack normalize(EntryStack<FluidStack> entry, FluidStack value) {
+        FluidStack copy = value.copy();
+        copy.setAmount(FluidStack.bucketAmount());
+        return copy;
+    }
+    
+    @Override
+    public int hash(EntryStack<FluidStack> entry, FluidStack value, ComparisonContext context) {
+        int code = 1;
+        code = 31 * code + value.getFluid().hashCode();
+        code = 31 * code + (context.isFuzzy() || !value.hasTag() ? 0 : value.getTag().hashCode());
+        return code;
+    }
+    
+    @Override
+    public boolean equals(FluidStack o1, FluidStack o2, ComparisonContext context) {
+        if (o1.getFluid() != o2.getFluid())
+            return false;
+        return context.isFuzzy() || isTagEqual(o1, o2);
+    }
+    
+    private boolean isTagEqual(FluidStack o1, FluidStack o2) {
+        CompoundTag tag1 = o1.getTag();
+        CompoundTag tag2 = o2.getTag();
+        return Objects.equals(tag1, tag2);
+    }
+    
+    @Override
+    @Nullable
+    public EntrySerializer<FluidStack> getSerializer() {
+        return this;
+    }
+    
+    @Override
+    public boolean supportSaving() {
+        return true;
+    }
+    
+    @Override
+    public boolean supportReading() {
+        return true;
+    }
+    
+    @Override
+    public CompoundTag save(EntryStack<FluidStack> entry, FluidStack value) {
+        return value.write(new CompoundTag());
+    }
+    
+    @Override
+    public FluidStack read(CompoundTag tag) {
+        return FluidStack.read(tag);
+    }
+    
+    @Override
+    public Component asFormattedText(EntryStack<FluidStack> entry, FluidStack value) {
+        return value.getFluid().defaultFluidState().createLegacyBlock().getBlock().getName();
+    }
+    
+    @Override
+    public Collection<ResourceLocation> getTagsFor(EntryStack<FluidStack> entry, FluidStack value) {
+        TagCollection<Fluid> collection = Minecraft.getInstance().getConnection().getTags().getFluids();
+        return collection == null ? Collections.emptyList() : collection.getMatchingTags(value.getFluid());
+    }
+    
+    public static class FluidEntryRenderer extends AbstractEntryRenderer<FluidStack> {
+        @Override
+        public void render(EntryStack<FluidStack> entry, PoseStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {
+            FluidStack stack = entry.getValue();
+            TextureAtlasSprite sprite = FluidStackHooks.getStillTexture(stack);
+            int color = FluidStackHooks.getColor(stack);
+            int a = 255;
+            int r = (color >> 16 & 255);
+            int g = (color >> 8 & 255);
+            int b = (color & 255);
+            Minecraft.getInstance().getTextureManager().bind(TextureAtlas.LOCATION_BLOCKS);
+            Tesselator tesselator = Tesselator.getInstance();
+            BufferBuilder builder = tesselator.getBuilder();
+            Matrix4f matrix = matrices.last().pose();
+            builder.begin(7, DefaultVertexFormat.POSITION_TEX_COLOR);
+            int z = entry.getZ();
+            builder.vertex(matrix, bounds.getMaxX(), bounds.y, z).uv(sprite.getU1(), sprite.getV0()).color(r, g, b, a).endVertex();
+            builder.vertex(matrix, bounds.x, bounds.y, z).uv(sprite.getU0(), sprite.getV0()).color(r, g, b, a).endVertex();
+            builder.vertex(matrix, bounds.x, bounds.getMaxY(), z).uv(sprite.getU0(), sprite.getV1()).color(r, g, b, a).endVertex();
+            builder.vertex(matrix, bounds.getMaxX(), bounds.getMaxY(), z).uv(sprite.getU1(), sprite.getV1()).color(r, g, b, a).endVertex();
+            tesselator.end();
+        }
+        
+        @Override
+        public @Nullable Tooltip getTooltip(EntryStack<FluidStack> entry, Point mouse) {
+            if (entry.isEmpty())
+                return null;
+            List<Component> toolTip = Lists.newArrayList(entry.asFormattedText());
+            Fraction amount = entry.getValue().getAmount();
+            if (!amount.isLessThan(Fraction.zero())) {
+                String amountTooltip = I18n.get(FLUID_AMOUNT, EntryStacks.simplifyAmount(entry).getValue().getAmount());
+                if (amountTooltip != null)
+                    toolTip.addAll(Stream.of(amountTooltip.split("\n")).map(TextComponent::new).collect(Collectors.toList()));
+            }
+            if (Minecraft.getInstance().options.advancedItemTooltips) {
+                ResourceLocation fluidId = Registry.FLUID.getKey(entry.getValue().getFluid());
+                toolTip.add((new TextComponent(fluidId.toString())).withStyle(ChatFormatting.DARK_GRAY));
+            }
+            return Tooltip.create(toolTip);
+        }
+    }
+}
diff --git a/runtime/src/main/java/me/shedaniel/rei/plugin/client/entry/ItemEntryDefinition.java b/runtime/src/main/java/me/shedaniel/rei/plugin/client/entry/ItemEntryDefinition.java
new file mode 100644
index 000000000..2445f687a
--- /dev/null
+++ b/runtime/src/main/java/me/shedaniel/rei/plugin/client/entry/ItemEntryDefinition.java
@@ -0,0 +1,252 @@
+/*
+ * This file is licensed under the MIT License, part of Roughly Enough Items.
+ * Copyright (c) 2018, 2019, 2020 shedaniel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package me.shedaniel.rei.plugin.client.entry;
+
+import com.google.common.collect.Lists;
+import com.mojang.blaze3d.platform.GlStateManager;
+import com.mojang.blaze3d.platform.Lighting;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.mojang.blaze3d.vertex.PoseStack;
+import it.unimi.dsi.fastutil.objects.ReferenceOpenHashSet;
+import it.unimi.dsi.fastutil.objects.ReferenceSet;
+import me.shedaniel.math.Point;
+import me.shedaniel.math.Rectangle;
+import me.shedaniel.rei.api.client.gui.widgets.Tooltip;
+import me.shedaniel.rei.api.client.entry.renderer.AbstractEntryRenderer;
+import me.shedaniel.rei.api.client.entry.renderer.BatchEntryRenderer;
+import me.shedaniel.rei.api.client.entry.renderer.EntryRenderer;
+import me.shedaniel.rei.api.common.entry.EntryStack;
+import me.shedaniel.rei.api.common.entry.EntrySerializer;
+import me.shedaniel.rei.api.common.entry.comparison.ComparisonContext;
+import me.shedaniel.rei.api.common.entry.comparison.ItemComparatorRegistry;
+import me.shedaniel.rei.api.common.entry.type.EntryDefinition;
+import me.shedaniel.rei.api.common.entry.type.EntryType;
+import me.shedaniel.rei.api.common.entry.type.VanillaEntryTypes;
+import me.shedaniel.rei.api.common.util.ImmutableTextComponent;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.renderer.MultiBufferSource;
+import net.minecraft.client.renderer.block.model.ItemTransforms;
+import net.minecraft.client.renderer.texture.OverlayTexture;
+import net.minecraft.client.renderer.texture.TextureAtlas;
+import net.minecraft.client.resources.language.I18n;
+import net.minecraft.client.resources.model.BakedModel;
+import net.minecraft.core.Registry;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.network.chat.Component;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.tags.TagCollection;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.TooltipFlag;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+public class ItemEntryDefinition implements EntryDefinition<ItemStack>, EntrySerializer<ItemStack> {
+    private final EntryRenderer<ItemStack> renderer = new ItemEntryRenderer();
+    
+    @Override
+    public Class<ItemStack> getValueType() {
+        return ItemStack.class;
+    }
+    
+    @Override
+    public EntryType<ItemStack> getType() {
+        return VanillaEntryTypes.ITEM;
+    }
+    
+    @Override
+    public EntryRenderer<ItemStack> getRenderer() {
+        return renderer;
+    }
+    
+    @Override
+    @Nullable
+    public ResourceLocation getIdentifier(EntryStack<ItemStack> entry, ItemStack value) {
+        return Registry.ITEM.getKey(value.getItem());
+    }
+    
+    @Override
+    public boolean isEmpty(EntryStack<ItemStack> entry, ItemStack value) {
+        return value.isEmpty();
+    }
+    
+    @Override
+    public ItemStack copy(EntryStack<ItemStack> entry, ItemStack value) {
+        return value.copy();
+    }
+    
+    @Override
+    public ItemStack normalize(EntryStack<ItemStack> entry, ItemStack value) {
+        ItemStack copy = value.copy();
+        copy.setCount(1);
+        return copy;
+    }
+    
+    @Override
+    public int hash(EntryStack<ItemStack> entry, ItemStack value, ComparisonContext context) {
+        int code = 1;
+        code = 31 * code + System.identityHashCode(value.getItem());
+        code = 31 * code + (context.isFuzzy() ? 0 : Long.hashCode(ItemComparatorRegistry.getInstance().hashOf(value)));
+        return code;
+    }
+    
+    @Override
+    public boolean equals(ItemStack o1, ItemStack o2, ComparisonContext context) {
+        if (o1.getItem() != o2.getItem())
+            return false;
+        return context.isFuzzy() || ItemComparatorRegistry.getInstance().hashOf(o1) == ItemComparatorRegistry.getInstance().hashOf(o2);
+    }
+    
+    @Override
+    @Nullable
+    public EntrySerializer<ItemStack> getSerializer() {
+        return this;
+    }
+    
+    @Override
+    public boolean supportSaving() {
+        return true;
+    }
+    
+    @Override
+    public boolean supportReading() {
+        return true;
+    }
+    
+    @Override
+    public CompoundTag save(EntryStack<ItemStack> entry, ItemStack value) {
+        return value.save(new CompoundTag());
+    }
+    
+    @Override
+    public ItemStack read(CompoundTag tag) {
+        return ItemStack.of(tag);
+    }
+    
+    private static final ReferenceSet<Item> SEARCH_BLACKLISTED = new ReferenceOpenHashSet<>();
+    
+    @Override
+    public Component asFormattedText(EntryStack<ItemStack> entry, ItemStack value) {
+        if (!SEARCH_BLACKLISTED.contains(value.getItem()))
+            try {
+                return value.getHoverName();
+            } catch (Throwable e) {
+                e.printStackTrace();
+                SEARCH_BLACKLISTED.add(value.getItem());
+            }
+        try {
+            return new ImmutableTextComponent(I18n.get("item." + Registry.ITEM.getKey(value.getItem()).toString().replace(":", ".")));
+        } catch (Throwable e) {
+            e.printStackTrace();
+        }
+        return new ImmutableTextComponent("ERROR");
+    }
+    
+    @Override
+    public Collection<ResourceLocation> getTagsFor(EntryStack<ItemStack> entry, ItemStack value) {
+        TagCollection<Item> collection = Minecraft.getInstance().getConnection().getTags().getItems();
+        return collection == null ? Collections.emptyList() : collection.getMatchingTags(value.getItem());
+    }
+    
+    private List<Component> tryGetItemStackToolTip(EntryStack<ItemStack> entry, ItemStack value, boolean careAboutAdvanced) {
+        if (!SEARCH_BLACKLISTED.contains(value.getItem()))
+            try {
+                return value.getTooltipLines(Minecraft.getInstance().player, careAboutAdvanced && Minecraft.getInstance().options.advancedItemTooltips ? TooltipFlag.Default.ADVANCED : TooltipFlag.Default.NORMAL);
+            } catch (Throwable e) {
+                e.printStackTrace();
+                SEARCH_BLACKLISTED.add(value.getItem());
+            }
+        return Lists.newArrayList(asFormattedText(entry, value));
+    }
+    
+    @SuppressWarnings("deprecation")
+    public class ItemEntryRenderer extends AbstractEntryRenderer<ItemStack> implements BatchEntryRenderer<ItemStack> {
+        @Override
+        public int getBatchId(EntryStack<ItemStack> entry) {
+            return 1738923 + (getModelFromStack(entry.getValue()).usesBlockLight() ? 1 : 0);
+        }
+        
+        private BakedModel getModelFromStack(ItemStack stack) {
+            return Minecraft.getInstance().getItemRenderer().getModel(stack, null, null);
+        }
+        
+        @Override
+        public void startBatch(EntryStack<ItemStack> entry, PoseStack matrices, float delta) {
+            Minecraft.getInstance().getTextureManager().bind(TextureAtlas.LOCATION_BLOCKS);
+            Minecraft.getInstance().getTextureManager().getTexture(TextureAtlas.LOCATION_BLOCKS).setFilter(false, false);
+            RenderSystem.pushMatrix();
+            RenderSystem.enableRescaleNormal();
+            RenderSystem.enableAlphaTest();
+            RenderSystem.defaultAlphaFunc();
+            RenderSystem.enableBlend();
+            RenderSystem.blendFunc(GlStateManager.SourceFactor.SRC_ALPHA, GlStateManager.DestFactor.ONE_MINUS_SRC_ALPHA);
+            RenderSystem.color4f(1.0F, 1.0F, 1.0F, 1.0F);
+            boolean sideLit = getModelFromStack(entry.getValue()).usesBlockLight();
+            if (!sideLit)
+                Lighting.setupForFlatItems();
+        }
+        
+        @Override
+        public void renderBase(EntryStack<ItemStack> entry, PoseStack matrices, MultiBufferSource.BufferSource immediate, Rectangle bounds, int mouseX, int mouseY, float delta) {
+            if (!entry.isEmpty()) {
+                ItemStack stack = entry.getValue();
+                matrices.pushPose();
+                matrices.translate(bounds.getCenterX(), bounds.getCenterY(), 100.0F + entry.getZ());
+                matrices.scale(bounds.getWidth(), (bounds.getWidth() + bounds.getHeight()) / -2f, bounds.getHeight());
+                Minecraft.getInstance().getItemRenderer().render(stack, ItemTransforms.TransformType.GUI, false, matrices, immediate, 15728880, OverlayTexture.NO_OVERLAY, getModelFromStack(stack));
+                matrices.popPose();
+            }
+        }
+        
+        @Override
+        public void renderOverlay(EntryStack<ItemStack> entry, PoseStack matrices, Rectangle bounds, int mouseX, int mouseY, float delta) {
+            if (!entry.isEmpty()) {
+                Minecraft.getInstance().getItemRenderer().blitOffset = entry.getZ();
+                Minecraft.getInstance().getItemRenderer().renderGuiItemDecorations(Minecraft.getInstance().font, entry.getValue(), bounds.x, bounds.y, null);
+                Minecraft.getInstance().getItemRenderer().blitOffset = 0.0F;
+            }
+        }
+        
+        @Override
+        public void endBatch(EntryStack<ItemStack> entry, PoseStack matrices, float delta) {
+            RenderSystem.enableDepthTest();
+            RenderSystem.disableAlphaTest();
+            RenderSystem.disableRescaleNormal();
+            boolean sideLit = getModelFromStack(entry.getValue()).usesBlockLight();
+            if (!sideLit)
+                Lighting.setupFor3DItems();
+            RenderSystem.popMatrix();
+        }
+        
+        @Override
+        public @Nullable Tooltip getTooltip(EntryStack<ItemStack> entry, Point mouse) {
+            if (entry.isEmpty())
+                return null;
+            return Tooltip.create(tryGetItemStackToolTip(entry, entry.getValue(), true));
+        }
+    }
+}
diff --git a/runtime/src/main/java/me/shedaniel/rei/plugin/test/REITestPlugin.java b/runtime/src/main/java/me/shedaniel/rei/plugin/test/REITestPlugin.java
new file mode 100644
index 000000000..f2f3a9ec8
--- /dev/null
+++ b/runtime/src/main/java/me/shedaniel/rei/plugin/test/REITestPlugin.java
@@ -0,0 +1,73 @@
+/*
+ * This file is licensed under the MIT License, part of Roughly Enough Items.
+ * Copyright (c) 2018, 2019, 2020 shedaniel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package me.shedaniel.rei.plugin.test;
+
+import me.shedaniel.rei.api.client.plugins.REIClientPlugin;
+import me.shedaniel.rei.api.client.registry.entry.EntryRegistry;
+import me.shedaniel.rei.api.common.entry.EntryStack;
+import me.shedaniel.rei.api.common.util.EntryStacks;
+import net.fabricmc.api.EnvType;
+import net.fabricmc.api.Environment;
+import net.minecraft.core.Registry;
+import net.minecraft.nbt.CompoundTag;
+import net.minecraft.world.item.Item;
+import net.minecraft.world.item.ItemStack;
+import org.apache.logging.log4j.LogManager;
+import org.jetbrains.annotations.TestOnly;
+
+import java.util.Random;
+
+@TestOnly
+@Environment(EnvType.CLIENT)
+public class REITestPlugin implements REIClientPlugin {
+    private Random random = new Random();
+    
+    @Override
+    public void preRegister() {
+        LogManager.getLogger().error("REI Test Plugin is enabled! If you see this unintentionally, please report this!");
+    }
+    
+    @Override
+    public void registerEntries(EntryRegistry registry) {
+        int times = 10;
+        for (Item item : Registry.ITEM) {
+            for (int i = 0; i < times; i++)
+                registry.registerEntryAfter(EntryStacks.of(item), transformStack(EntryStacks.of(item)));
+            try {
+                for (ItemStack stack : registry.appendSt