chargeableItem.java

package com.harry9137.ct.item;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.world.World;

import java.util.List;

public class ChargeableItem extends ItemCT {

    public int chargeLevel;
    public int maxChargeLevel;

    public ChargeableItem(int charge, int maxCharge){
        super();
        this.chargeLevel = charge;
        this.maxChargeLevel = maxCharge;
    }

    public int getChargeLevel(ItemStack itemStack){
        return itemStack.getTagCompound().getInteger("charge");
    }

    public int getMaxChargeLevel(ItemStack itemStack){
        return itemStack.getTagCompound().getInteger("maxcharge");
    }

    public void setChargeLevel(int setterCharge, ItemStack itemStack){
        if(!(setterCharge >= maxChargeLevel)) {
            itemStack.getTagCompound().setInteger("charge", setterCharge);
        }
        else{
            itemStack.getTagCompound().setInteger("charge", 1000);
        }
    }

    public void setMaxChargeLevel(int setterMaxCharge, ItemStack itemStack){
        itemStack.getTagCompound().setInteger("maxcharge", setterMaxCharge);
    }

    @Override
    public void addInformation(ItemStack stack, EntityPlayer player, List list, boolean par4)
    {
        try {
            String chargeString = Integer.toString(stack.getTagCompound().getInteger("charge")) + "/" + Integer.toString(stack.getTagCompound().getInteger("maxcharge"));
            list.add(chargeString);
        }
        catch(NullPointerException e){
            this.onCreated(stack, player.getEntityWorld(), player);
            String chargeString = Integer.toString(stack.getTagCompound().getInteger("charge")) + "/" + Integer.toString(stack.getTagCompound().getInteger("maxcharge"));
            list.add(chargeString);
        }
    }
    @Override
    public ItemStack onItemRightClick(ItemStack itemStack, World world, EntityPlayer player)
    {
        this.setChargeLevel(getChargeLevel(itemStack)+100, itemStack);

        return itemStack;
    }
    public void onCreated(ItemStack itemStack, World world, EntityPlayer player) {
            itemStack.setTagCompound(new NBTTagCompound());
            itemStack.getTagCompound().setInteger("charge", chargeLevel);
            itemStack.getTagCompound().setInteger("maxcharge", maxChargeLevel);

    }


}