serpent/numbered_works.se

   1 init:
   2     ARTWORK.NUMBER.INDEX = 1001
   3     contract.storage[ARTWORK.NUMBER.INDEX] = 1
   4
   5 code:
   6     ARTWORK = "Work #"
   7     ARTWORK.NUMBER.INDEX = 1001
   8
   9     // Make sure we have enough gas to run the contact
  10     if tx.value < tx.basefee * 400:
  11         // If not, stop
  12         stop
  13
  14     // Get the number of the work to produce
  15     number = contract.storage[ARTWORK.NUMBER.INDEX]
  16     // Store the number to use for the next work
  17     contract.storage[ARTWORK.NUMBER.INDEX] = contract.storage[ARTWORK.NUMBER.INDEX] + 1
  18     // Return the work
  19     return([ARTWORK, number], 2)