gistfile1.txt

memory[55001] -> 1

n -> 0
while n < 10000
  memory[n] -> 0
  n -> n + 1

background()
memory[55000] -> 0

RED -> 10000
GREEN -> 100
BLUE -> 1
GRAY -> gray(3)

while 1
  if ( memory[50002] + memory[50003] ) != 0
    mouseX -> memory[50000]
    mouseY -> memory[50001]
    target -> mouseX + (mouseY * 100)
    color -> 0
    if memory[50002] != 0
      color -> memory[target] + GRAY
      if color > 999999
        color -> 999999
    if memory[50003] != 0
      color -> memory[target] - GRAY
      if color < 0
        color -> 0
    memory[target] -> color
    memory[60000 + target] -> color
    memory[55000] -> 1

def background()
  x -> 0
  while x < 100
    y -> 0
    while y < 100
      target -> x + (y * 100)
      color -> gray((x + y) / 2)
      memory[60000 + target] -> color
      memory[target] -> color
      y -> y + 1
    x -> x + 1

def gray(brightness)
  out -> 10101 * brightness