For my computer science class I'm making a Fortnite Minecraft copy, I am making a gun that is pretty simple and I want the gun to destroy a certain block type which I make myself when the arrow from the gun hits the block. How would  I go about doing this? 
 
	 
 
	This is my code so far
 
	 
 
	GUN CODE
 
	 
 
	package tealsmc.mods.items;
 
	import java.util.Random;
 
	import cpw.mods.fml.common.eventhandler.SubscribeEvent; 
	import net.minecraft.creativetab.CreativeTabs; 
	import net.minecraft.entity.player.EntityPlayer; 
	import net.minecraft.entity.projectile.EntityArrow; 
	import net.minecraft.item.Item; 
	import net.minecraft.item.ItemStack; 
	import net.minecraft.world.World; 
	import net.minecraftforge.event.entity.player.ArrowNockEvent;
 
	public class FortnitePistol extends Item { 
	     
	    public FortnitePistol() { 
	        setCreativeTab(CreativeTabs.tabTools); 
	        this.setFull3D(); 
	        this.setMaxStackSize(1); 
	        this.setMaxDamage(10); 
	    } 
	     
	     
	     
	    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer) { 
	         
	        EntityArrow var8 = new EntityArrow(par2World, par3EntityPlayer, 1.0F); 
	         
	        par2World.spawnEntityInWorld(var8); 
	                  
	         
	         
	        return par1ItemStack; 
	         
	    } 
	    
	     
	} 
	 
 
	 
 
	BLOCK CODE
 
	 
 
	package tealsmc.mods.blocks;
 
	 
	import net.minecraft.block.Block; 
	import net.minecraft.block.material.Material; 
	import net.minecraft.creativetab.CreativeTabs;
 
	public class FortniteWood extends Block{ 
	     
	    public FortniteWood(Material mat) { 
	        super(mat); 
	        setCreativeTab(CreativeTabs.tabBlock); 
	    } 
	     
	     
	     
	} 
	 
 
	 
 
	 
 
	 
 
	I am also using the TEALS educational modpack but it is just Forge, just to clear up any confusion on the package.