EnchantmentDamage.java

package net.minecraft.enchantment;

import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.EnumCreatureAttribute;
import net.minecraft.item.ItemAxe;
import net.minecraft.item.ItemStack;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;

public class EnchantmentDamage extends Enchantment
{
    /** Holds the name to be translated of each protection type. */
    private static final String[] protectionName = new String[] {"all", "undead", "arthropods"};
    /** Holds the base factor of enchantability needed to be able to use the enchant. */
    private static final int[] baseEnchantability = new int[] {1, 5, 5};
    /** Holds how much each level increased the enchantability factor to be able to use this enchant. */
    private static final int[] levelEnchantability = new int[] {11, 8, 8};
    /**
     * Used on the formula of base enchantability, this is the 'window' factor of values to be able to use thing
     * enchant.
     */
    private static final int[] thresholdEnchantability = new int[] {20, 20, 20};
    /** Defines the type of damage of the enchantment, 0 = all, 1 = undead, 3 = arthropods */
    public final int damageType;
    private static final String __OBFID = "CL_00000102";

    public EnchantmentDamage(int p_i1923_1_, int p_i1923_2_, int p_i1923_3_)
    {
        super(p_i1923_1_, p_i1923_2_, EnumEnchantmentType.weapon);
        this.damageType = p_i1923_3_;
    }

    /**
     * Returns the minimal value of enchantability needed on the enchantment level passed.
     */
    public int getMinEnchantability(int p_77321_1_)
    {
        return baseEnchantability[this.damageType] + (p_77321_1_ - 1) * levelEnchantability[this.damageType];
    }

    /**
     * Returns the maximum value of enchantability nedded on the enchantment level passed.
     */
    public int getMaxEnchantability(int p_77317_1_)
    {
        return this.getMinEnchantability(p_77317_1_) + thresholdEnchantability[this.damageType];
    }

    /**
     * Returns the maximum level that the enchantment can have.
     */
    public int getMaxLevel()
    {
        return 5;
    }

    public float func_152376_a(int p_152376_1_, EnumCreatureAttribute p_152376_2_)
    {
        return this.damageType == 0 ? (float)p_152376_1_ * 1.25F : (this.damageType == 1 && p_152376_2_ == EnumCreatureAttribute.UNDEAD ? (float)p_152376_1_ * 2.5F : (this.damageType == 2 && p_152376_2_ == EnumCreatureAttribute.ARTHROPOD ? (float)p_152376_1_ * 2.5F : 0.0F));
    }

    /**
     * Return the name of key in translation table of this enchantment.
     */
    public String getName()
    {
        return "enchantment.damage." + protectionName[this.damageType];
    }

    /**
     * Determines if the enchantment passed can be applyied together with this enchantment.
     */
    public boolean canApplyTogether(Enchantment p_77326_1_)
    {
        return !(p_77326_1_ instanceof EnchantmentDamage);
    }

    public boolean canApply(ItemStack p_92089_1_)
    {
        return p_92089_1_.getItem() instanceof ItemAxe ? true : super.canApply(p_92089_1_);
    }

    public void func_151368_a(EntityLivingBase p_151368_1_, Entity p_151368_2_, int p_151368_3_)
    {
        if (p_151368_2_ instanceof EntityLivingBase)
        {
            EntityLivingBase entitylivingbase1 = (EntityLivingBase)p_151368_2_;

            if (this.damageType == 2 && entitylivingbase1.getCreatureAttribute() == EnumCreatureAttribute.ARTHROPOD)
            {
                int j = 20 + p_151368_1_.getRNG().nextInt(10 * p_151368_3_);
                entitylivingbase1.addPotionEffect(new PotionEffect(Potion.moveSlowdown.id, j, 3));
            }
        }
    }
}