Minecraft Forums

1° Everything that you write before the //, will be ignored.
Example:

//Everything in this line will be ignored

2° Everything that you write inside the /*Here*/ will be ignored.

/*Everything that you write inside here will be ignored */

With the function useItem you can make something happens when you use a determined item in a determined block.
Example:

function useItem(x,y,z,itemId,blockId)
{
if(itemId==280 && blockId==2)//If your item is a stick and the block a grass block
{
  clientMessage("Hi Guys")
}
}

With this function you can make appear messages in the chat.
Example:

function useItem(x,y,z,itemId,blockId)
{
if(itemId==280 && blockId==2)
{
  clientMessage("Hi Guys")//Will appear this message in the chat
}
}

This function make appear a popup message.
Example:

function useItem(x,y,z,itemId,blockId)
{
if(itemId==280 && blockId==2)
{
  print("Hi Guys")//Will appear this message
}
}

With this function you can add or remove items or blocks of your inventory.
The first number(276) is the id of the diamond sword, and the second number(1) is amount of items you want add.
Example 1:

function useItem(x,y,z,itemId,blockId)
{
if(itemId==280 && blockId==2)
{
  addItemInventory(276,1);//Will add one diamond sword to your inventory.
}
}

If you place a negative number, you will remove a the item of your inventory.
Example 2:

function useItem(x,y,z,itemId,blockId)
{
if(itemId==280 && blockId==2)
{
  addItemInventory(276,-1);//Will remove one diamond sword of your inventory.
}
}

Make something happens when you attack someone with a determined item.
Example:

function attackHook(attacker, victim)
{
if(getCarriedItem==280)//If attack someone with a stick.
{
  clientMessage("Hi Guys");
}
}

Use the function Level.setTime() to change the time, like the command of PC version.
Example:

function useItem(x,y,z,itemId,blockId)
{
if(itemId==280)
{
  Level.setTime(8280);//Will set the time to night.
}
}