tebriel

#!/usr/bin/env python3

# Find 5 friday (4) the 12th's
# python3 fridays_of.py 12 4 5

import datetime
import sys


def make_get_specified_date(start, day_of_month, day_of_week):

tebriel

Sticky gravity is explained in depth here: http://tetrisconcept.net/wiki/Line_clear#Sticky

The playfield is divided into connected segments using flood fill. Any blocks that are adjacent horizontally or vertically are marked as one segment, that is, they are treated as having "stuck" together. Each segment falls independently until it meets the floor or another block. Additional line clears may result.

Sample input and expected output are included in this Gist.

tebriel

if (thisThing())
  doThat();
else
  doThis();

alsoThat();

// Is not the same as:

if (thisThing()) {