Aeternium tools parts, multiple Anvil crafts with same input

src/main/java/ru/betterend/mixin/client/AnvilScreenMixin.java

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+package ru.betterend.mixin.client;
+
+import java.util.List;
+
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import com.google.common.collect.Lists;
+
+import net.minecraft.client.gui.screen.ingame.AnvilScreen;
+import net.minecraft.client.gui.screen.ingame.ForgingScreen;
+import net.minecraft.client.gui.widget.AbstractButtonWidget;
+import net.minecraft.client.gui.widget.ButtonWidget;
+import net.minecraft.client.gui.widget.TextFieldWidget;
+import net.minecraft.client.util.math.MatrixStack;
+import net.minecraft.entity.player.PlayerInventory;
+import net.minecraft.item.ItemStack;
+import net.minecraft.screen.AnvilScreenHandler;
+import net.minecraft.screen.ScreenHandler;
+import net.minecraft.text.LiteralText;
+import net.minecraft.text.Text;
+import net.minecraft.util.Identifier;
+
+import ru.betterend.interfaces.AnvilScreenHandlerExtended;
+import ru.betterend.recipe.builders.AnvilSmithingRecipe;
+
+@Mixin(AnvilScreen.class)
+public class AnvilScreenMixin extends ForgingScreen<AnvilScreenHandler> {
+
+	@Shadow
+	private TextFieldWidget nameField;
+	
+	private List<AbstractButtonWidget> be_buttons = Lists.newArrayList();
+	
+	public AnvilScreenMixin(AnvilScreenHandler handler, PlayerInventory playerInventory, Text title,
+			Identifier texture) {
+		super(handler, playerInventory, title, texture);
+	}
+
+	@Inject(method = "setup", at = @At("TAIL"))
+	protected void setup(CallbackInfo info) {
+		this.be_buttons.clear();
+		int x = (this.width - this.backgroundWidth) / 2;
+	    int y = (this.height - this.backgroundHeight) / 2;
+		this.be_buttons.add(new ButtonWidget(x + 8, y + 45, 15, 20, new LiteralText("<"), (b) -> be_previousRecipe()));
+		this.be_buttons.add(new ButtonWidget(x + 154, y + 45, 15, 20, new LiteralText(">"), (b) -> be_nextRecipe()));
+	}
+	
+	@Inject(method = "renderForeground", at = @At("TAIL"))
+	protected void renderForeground(MatrixStack matrices, int mouseX, int mouseY, float delta, CallbackInfo info) {
+		AnvilScreenHandlerExtended handler = AnvilScreenHandlerExtended.class.cast(this.handler);
+		if (handler.be_getRecipes().size() > 1) {
+			this.be_buttons.forEach(button -> button.render(matrices, mouseX, mouseY, delta));
+		}
+	}
+	
+	@Inject(method = "onSlotUpdate", at = @At("HEAD"), cancellable = true)
+	public void onSlotUpdate(ScreenHandler handler, int slotId, ItemStack stack, CallbackInfo info) {
+		AnvilScreenHandlerExtended anvilHandler = AnvilScreenHandlerExtended.class.cast(this.handler);
+		if (anvilHandler.be_getCurrentRecipe() != null) {
+			this.nameField.setText("");
+			this.nameField.setEditable(false);
+			this.setFocused(null);
+			info.cancel();
+		}
+	}
+	
+	private void be_nextRecipe() {
+		AnvilScreenHandlerExtended handler = AnvilScreenHandlerExtended.class.cast(this.handler);
+		List<AnvilSmithingRecipe> recipes = handler.be_getRecipes();
+		AnvilSmithingRecipe current = handler.be_getCurrentRecipe();
+		int i = recipes.indexOf(current) + 1;
+		if (i == recipes.size()) {
+			i = 0;
+		}
+		handler.be_updateCurrentRecipe(recipes.get(i));
+	}
+	
+	private void be_previousRecipe() {
+		AnvilScreenHandlerExtended handler = AnvilScreenHandlerExtended.class.cast(this.handler);
+		List<AnvilSmithingRecipe> recipes = handler.be_getRecipes();
+		AnvilSmithingRecipe current = handler.be_getCurrentRecipe();
+		int i = recipes.indexOf(current) - 1;
+		if (i == 0) {
+			i = recipes.size() - 1;
+		}
+		handler.be_updateCurrentRecipe(recipes.get(i));
+	}
+	
+	@Override
+	public boolean mouseClicked(double mouseX, double mouseY, int button) {
+		for (AbstractButtonWidget elem : be_buttons) {
+			if (elem.mouseClicked(mouseX, mouseY, button)) {
+				return true;
+			}
+		}
+		return super.mouseClicked(mouseX, mouseY, button);
+	}
+}