Money

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/LSL

money

	Security Warning!
	When writing a vendor, Always (ALWAYS!) check the amount paid in your money() event. Preconfigured payment amounts from llSetPayPrice() are only a suggestion to the client. The client can still send L$0 or any positive integer. Never trust the client software to be secure. This is not important, of course, for a simple tipjar

Description

Event: money( key id, integer amount ){ ; }

20	Event ID
	Delay

Triggered when money is paid to the prim in the amount by id.

• key	id	–	who paid
• integer	amount	–	the amount paid

Specification

When money is paid to the prim, the money is given to the object's owner.
If the object is owned by or deeded to a group it is divvied up amongst the group members immediately (which is why groups can't grant PERMISSION_DEBIT). Only members of a role that has the "Accounting/Pay group liabilities and receive group dividends" attribute will receive money.
Don't forget to turn on the pay-behavior of the prims/objects involved.
The pay buttons should be configured in most applications where money is being transfered (llSetPayPrice), it makes paying money to the object easier.

Caveats

• This event cannot be triggered by a call to llGiveMoney because llGiveMoney cannot be used by one object to pay another object.
• Money cannot be paid to an attachment.

Examples

This example shows the simplest tip-jar and shows how little code is needed to receive unverified amounts of money. <lsl>

default {

   money(key id, integer amount)      // Some money has been received (and has been paid into the owner's account) 
   {
       // Thank the giver for their tip
       llInstantMessage(id, "Thanks for the L$"  + (string) amount + " tip!");
   }

} </lsl> Next level of tip jar, advising owner, keeping a running total, and with floating text to show status. <lsl> integer Total; string OwnerName;

default {

   on_rez( integer sparam )
   {
       llResetScript();
   }
   state_entry()
   {
       OwnerName = llKey2Name( llGetOwner() );
       llSetText( OwnerName + "'s Tip Jar.\nAny tips gratefully received!\nL$0 Donated so far", <.2, 1, .6>, 1);
   }

   money(key id, integer amount)
   {
       Total += amount;
       // Shortcut 'cheat' to avoid multiple casts when constructing a message including non-string items
       string str = (string) [OwnerName, "'s Tip Jar.\nPlease tip if you are so inclined!\n$L", amount, " Was donated last!\n$L", Total, " Donated so far" ];
       llSetText(str, <1,1,1>, 1);
       llInstantMessage(id,"Thanks for the tip!");
       llInstantMessage(llGetOwner(), llKey2Name(id) + " donated L$" + (string) amount );
   }

} </lsl> This example verifies the amount received (but without giving the user a clue as to the expected amount. Oh, and it doesn't actually work). <lsl> integer price = 10;

default {

   state_entry()
   {
       llSetPayPrice(PAY_HIDE, [PAY_HIDE ,PAY_HIDE, PAY_HIDE, PAY_HIDE]);

       key owner = llGetOwner();
       llRequestPermissions(owner, PERMISSION_DEBIT);
   }

   money(key id, integer amount)
   {
       if (amount == price)
       {
           llInstantMessage(id, "You paid " + (string)price + " L$.");
           return;
       }

       key owner = llGetOwner();
       key permKey = llGetPermissionsKey();
       integer perm = llGetPermissions();

       if (permKey != owner)
           return;
       if (!(perm & PERMISSION_DEBIT))
           return;

       if (amount < price)
       {
           llInstantMessage(id, "That's not enough money.");
           llGiveMoney(id, amount);
       }
       else if (price < amount)
       {
           integer change = amount - price;
           llInstantMessage(id, "You paid more than " + (string)price + " L$, "
                               + "your change is " + (string)change + " L$.");
           llGiveMoney(id, change);
       }
   }

   run_time_permissions(integer perm)
   {
       if(perm & PERMISSION_DEBIT)
           llOwnerSay("Setup complete");
   }

} </lsl>

See Also

Functions

•	llTransferLindenDollars	–	Give money to another avatar with transaction confirmation
•	llGiveMoney	–	Give money to another avatar
•	llSetPayPrice	–	Configure the pay buttons

Deep Notes

Signature
event void money( key id, integer amount );