Hi there,

 

I was trying to make my item get all the entitys within a 10 block radius and take away 2 health + if it is a player play a sound.

 

All on right click.

 

Here is my right click method:

 

@Override
public ActionResult<ItemStack> onItemRightClick(ItemStack itemStackIn, World worldIn, EntityPlayer playerIn, EnumHand hand) {
	AxisAlignedBB bb = new AxisAlignedBB(10, 10, 10, 10, 10, 10);
	worldIn.getEntitiesWithinAABB(EntityLiving.class, bb);
	return super.onItemRightClick(itemStackIn, worldIn, playerIn, hand);
}

 

I can't figure out how to hurt the entitys that it finds.

That AABB is both 0 in size and centered near the origin of the world.

 

You should be using

new AxisAlignedBB(playerIn.pos.getX() - 10, playerIn.pos.getY() - 10, playerIn.pos.getZ() - 10, playerIn.pos.getX() + 10, playerIn.pos.getY() + 10, playerIn.pos.getZ() + 10)

I would suggest doing AxisAlignedBB bb = playerIn.getEntityBoundingBox().expand(20.0D, 20.0D, 20.0D) and for hurting them something like this:

List<EntityLivingBase> entitiesInAABB = this.worldObj.getEntitiesWithinAABB(EntityLivingBase.class, bb);
		for(int i = 0; i < entitiesInAABB.size(); i++) {
			EntityLivingBase entityInAABB = entitiesInAABB.get(i);
			entityInAABB.attackEntityFrom(DamageSource.magic, 1.0F);
		}

Thank you guys!

 

One extra thing: how do I set a cooldown for my onItemRightClick.

 

 

Thank you guys!

 

One extra thing: how do I set a cooldown for my onItemRightClick.

Instead of having the code for the effect in onItemRightClicked have it in onPlayerStoppedUsing (i believe it was that name may have changed). For an example of this look at ItemBow.

Thank you guys!

 

One extra thing: how do I set a cooldown for my onItemRightClick.

Instead of having the code for the effect in onItemRightClicked have it in onPlayerStoppedUsing (i believe it was that name may have changed). For an example of this look at ItemBow.

 

That method gets called after you release the right button. in the case of the bow it releases the arrow.

 

I want to know how to set a cooldown for onItemRightClick.

Then you will have to use a custom capability or maybe an IProperty I personally have not worked with either of these, but im pretty sure you want to use the later.

Vanilla already has an item cooldown system:

CooldownTracker

. I suggest you look for usages of this in vanilla code, e.g.

ItemEnderPearl

.

It always amazes me that people ask questions about how to make cool-down timer type functionality. I think people forget that modding is just programming and anything you can do with Java you can probably do in your mod.

 

While items do have a built-in system for cool-down (as mentioned by Choonster) I feel compelled to point out that this is a very basic programming problem.

 

You simply need an int field that gets set to a value (since Minecraft works on 20 steps per second, it would probably be set to 20 * the number of seconds you want for cool-down) whenever the action starts and decrements by one in some method that runs every tick (like updateLiving()) until it reaches zero (then stays there). Then whenever you want to start the action you just check to make sure that field is at 0 and do it all over again.