BloodMagic/1.7.10/main/java/WayofTime/alchemicalWizardry/common/tweaker/Alchemy.java

package WayofTime.alchemicalWizardry.common.tweaker;

import static WayofTime.alchemicalWizardry.common.tweaker.MTHelper.toStack;
import static WayofTime.alchemicalWizardry.common.tweaker.MTHelper.toStacks;
import minetweaker.IUndoableAction;
import minetweaker.MineTweakerAPI;
import minetweaker.api.item.IItemStack;
import net.minecraft.item.ItemStack;
import stanhebben.zenscript.annotations.ZenClass;
import stanhebben.zenscript.annotations.ZenMethod;
import WayofTime.alchemicalWizardry.api.alchemy.AlchemyRecipe;
import WayofTime.alchemicalWizardry.api.alchemy.AlchemyRecipeRegistry;

/**
 * MineTweaker3 Alchemy Recipe Handler by joshie *
 */
@ZenClass("mods.bloodmagic.Alchemy")
public class Alchemy 
{
    @ZenMethod
    public static void addRecipe(IItemStack output, IItemStack[] input, int tier, int lp) {
        MineTweakerAPI.apply(new Add(new AlchemyRecipe(toStack(output), (int) (((double) lp) / 100), toStacks(input), tier)));
    }

    private static class Add implements IUndoableAction 
    {
        private final AlchemyRecipe recipe;
        
        public Add(AlchemyRecipe recipe) 
        {
            this.recipe = recipe;
        }
        
        @Override
        public void apply() 
        {
            AlchemyRecipeRegistry.recipes.add(recipe);
        }

        @Override
        public boolean canUndo() 
        {
            return AlchemyRecipeRegistry.recipes != null;
        }

        @Override
        public void undo() 
        {
            AlchemyRecipeRegistry.recipes.remove(recipe);
        }

        @Override
        public String describe() 
        {
            return "Adding Alchemy Recipe for " + ((AlchemyRecipe) recipe).getResult().getDisplayName();
        }

        @Override
        public String describeUndo() 
        {
            return "Removing Alchemy Recipe for " + ((AlchemyRecipe) recipe).getResult().getDisplayName();
        }

        @Override
        public Object getOverrideKey() 
        {
            return null;
        }
    }

    @ZenMethod
    public static void removeRecipe(IItemStack output) {
        MineTweakerAPI.apply(new Remove(toStack(output)));
    }

    private static class Remove implements IUndoableAction 
    {
        private final ItemStack output;
        private AlchemyRecipe recipe;
        
        public Remove(ItemStack output) 
        {
            this.output = output;
        }
        
        @Override
        public void apply() 
        {
            for (AlchemyRecipe r : AlchemyRecipeRegistry.recipes) 
            {
                if (r.getResult() != null && r.getResult().isItemEqual(output)) 
                {
                    recipe = r;
                    break;
                }
            }

            AlchemyRecipeRegistry.recipes.remove(recipe);
        }

        @Override
        public boolean canUndo() 
        {
            return AlchemyRecipeRegistry.recipes != null && recipe != null;
        }

        @Override
        public void undo() 
        {
            AlchemyRecipeRegistry.recipes.add(recipe);
        }

        @Override
        public String describe() 
        {
            return "Removing Alchemy Recipe for " + output.getDisplayName();
        }

        @Override
        public String describeUndo() 
        {
            return "Restoring Alchemy Recipe for " + output.getDisplayName();
        }

        @Override
        public Object getOverrideKey() 
        {
            return null;
        }
    }
}