src/main/java/me/shedaniel/plugin/furnace/VanillaFurnaceRecipe.java


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package me.shedaniel.plugin.furnace;

import me.shedaniel.api.IRecipe;
import net.minecraft.block.entity.FurnaceBlockEntity;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.recipe.Ingredient;
import net.minecraft.recipe.Recipe;
import net.minecraft.recipe.smelting.SmeltingRecipe;

import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.stream.Collectors;

public class VanillaFurnaceRecipe implements IRecipe<ItemStack> {
    
    private final SmeltingRecipe recipe;
    
    @Override
    public String getId() {
        return "furnace";
    }
    
    public VanillaFurnaceRecipe(SmeltingRecipe recipe) {
        this.recipe = recipe;
    }
    
    @Override
    public List<ItemStack> getOutput() {
        List<ItemStack> output = new LinkedList<>();
        output.add(recipe.getOutput().copy());
        return output;
    }
    
    @Override
    public List<List<ItemStack>> getInput() {
        List<List<ItemStack>> input = new LinkedList<>();
        for(Ingredient ingredient : recipe.getPreviewInputs()) {
            List<ItemStack> ingredients = Arrays.asList(ingredient.getStackArray());
            input.add(ingredients);
        }
        input.add(FurnaceBlockEntity.createBurnableMap().keySet().stream().map(Item::getDefaultStack).collect(Collectors.toList()));
        return input;
    }
    
    @Override
    public List<List<ItemStack>> getRecipeRequiredInput() {
        List<List<ItemStack>> input = new LinkedList<>();
        for(Ingredient ingredient : recipe.getPreviewInputs())
            Collections.addAll(input, new LinkedList<>(Arrays.asList(ingredient.getStackArray())));
        return input;
    }
    
    public Recipe getRecipe() {
        return recipe;
    }
    
}