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

package WayofTime.alchemicalWizardry.common.tweaker;

import static WayofTime.alchemicalWizardry.common.tweaker.MTHelper.toStack;
import minetweaker.IUndoableAction;
import minetweaker.MineTweakerAPI;
import minetweaker.api.item.IItemStack;
import net.minecraft.item.ItemStack;
import stanhebben.zenscript.annotations.Optional;
import stanhebben.zenscript.annotations.ZenClass;
import stanhebben.zenscript.annotations.ZenMethod;
import WayofTime.alchemicalWizardry.api.altarRecipeRegistry.AltarRecipe;
import WayofTime.alchemicalWizardry.api.altarRecipeRegistry.AltarRecipeRegistry;

/**
 * MineTweaker3 Blood Altar Recipe Handler by joshie *
 */
@ZenClass("mods.bloodmagic.Altar")
public class BloodAltar 
{
    @ZenMethod
    public static void addRecipe(IItemStack output, IItemStack input, int tier, int lp, @Optional int consume, @Optional int drain) {
        consume = consume > 0 ? consume : 20;
        drain = drain > 0 ? drain : 20;
        MineTweakerAPI.apply(new Add(new AltarRecipe(toStack(output), toStack(input), tier, lp, consume, drain, false)));
    }

    private static class Add implements IUndoableAction 
    {
        private final AltarRecipe recipe;
        
        public Add(AltarRecipe recipe) 
        {
            this.recipe = recipe;
        }
        
        @Override
        public void apply() 
        {
            AltarRecipeRegistry.altarRecipes.add(recipe);
        }

        @Override
        public boolean canUndo() 
        {
            return AltarRecipeRegistry.altarRecipes != null;
        }

        @Override
        public void undo() 
        {
            AltarRecipeRegistry.altarRecipes.remove(recipe);
        }

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

        @Override
        public String describeUndo() 
        {
            return "Removing Blood Altar Recipe for " + ((AltarRecipe) 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 AltarRecipe recipe;
        
        public Remove(ItemStack output) 
        {
            this.output = output;
        }
        
        @Override
        public void apply() 
        {
            for (AltarRecipe r : AltarRecipeRegistry.altarRecipes) 
            {
                if (r.getResult() != null && r.getResult().isItemEqual(output)) 
                {
                    recipe = r;
                    break;
                }
            }

            AltarRecipeRegistry.altarRecipes.remove(recipe);
        }

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

        @Override
        public void undo() 
        {
            AltarRecipeRegistry.altarRecipes.add(recipe);
        }

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

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

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