minecraft-kajetans-mod/src/main/java/me/km/items/ItemWeapon.java

package me.km.items;

import com.google.common.collect.Multimap;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.attributes.AttributeModifier;
import net.minecraft.inventory.EntityEquipmentSlot;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ItemWeapon extends ItemBase
{
    private final float attackDamage;
    private final Item.ToolMaterial material;

    public ItemWeapon(String name, String local, Item.ToolMaterial material, float attackDamage)
    {
        super(name, local);
        this.material = material;
        this.maxStackSize = 1;
        super.setMaxDamage(material.getMaxUses());
        super.setCreativeTab(CreativeTabs.COMBAT);
        this.attackDamage = attackDamage + material.getDamageVsEntity();
    }

    @Override
    public boolean hitEntity(ItemStack stack, EntityLivingBase target, EntityLivingBase attacker)
    {
        stack.damageItem(1, attacker);
        return true;
    }

    @Override
    public boolean onBlockDestroyed(ItemStack stack, World worldIn, IBlockState state, BlockPos pos, EntityLivingBase entityLiving)
    {
        if((double) state.getBlockHardness(worldIn, pos) != 0.0D)
        {
            stack.damageItem(2, entityLiving);
        }
        return true;
    }
    
    @SideOnly(Side.CLIENT)
    @Override
    public boolean isFull3D()
    {
        return true;
    }

    @Override
    public int getItemEnchantability()
    {
        return this.material.getEnchantability();
    }

    @Override
    public boolean getIsRepairable(ItemStack toRepair, ItemStack repair)
    {
        ItemStack mat = this.material.getRepairItemStack();
        if (!mat.isEmpty() && net.minecraftforge.oredict.OreDictionary.itemMatches(mat, repair, false)) return true;
        return super.getIsRepairable(toRepair, repair);
    }

    
    @Override
    public Multimap<String, AttributeModifier> getItemAttributeModifiers(EntityEquipmentSlot equipmentSlot)
    {
        Multimap<String, AttributeModifier> multimap = super.getItemAttributeModifiers(equipmentSlot);
        if (equipmentSlot == EntityEquipmentSlot.MAINHAND)
        {
            multimap.put(SharedMonsterAttributes.ATTACK_DAMAGE.getName(), new AttributeModifier(ATTACK_DAMAGE_MODIFIER, "Weapon modifier", this.attackDamage, 0));
            multimap.put(SharedMonsterAttributes.ATTACK_SPEED.getName(), new AttributeModifier(ATTACK_SPEED_MODIFIER, "Weapon modifier", -2.4000000953674316D, 0));
        }
        return multimap;
    }
}