MotherLoad2

blocks =
{
  ["block1"] = { 1, "Player" , colours.blue};
  ["block2"] = { 2, "Air"  , colours.white};
  ["block3"] = { 3, "Soil"  , colours.brown};
  ["block4"] = { 4, "IronOre"  , colours.grey};
  ["block5"] = { 5, "GoldOre"  , colours.yellow};
}
term.clear()
term.setCursorPos(25, 10)
write("Welcome to MotherLoad2")
sleep(1)
term.clear()
print("Creating world...")
i = 1
world = {"blank"}
while i <= 49 do
 j = 1
 world[i] = {"blank"}
 while j <= 19 do
  if j <= 2 then
   world[i][j] = blocks[2]
  else
   if math.random(1,20) == 1 then
    world[i][j] = blocks[4]
   elseif math.random(1,50) == 1 then
    world[i][j] = blocks[5]
   else
    world[i][j] = blocks[3]
   end
  end
  j = j + 1
 end
 i = i + 1
end
sleep(0.5)
print("Done!")
quit = false
while quit == false do
 world[px][py] = blocks[1]
 for i = 1, 49 do
  for j = 1,19 do
   paintutils.drawPixel(i, j, world[i][j][3])
  end
 end
 os.startTimer(0.05)
 evt, p1, p2, p3 = os.pullEvent()
 if evt == "timer" then
  --Nothing!
 elseif evt == "char" then
  if p1 == "w" then
   px = px + 1
  elseif p1 == "s" then
   px = px - 1
  else
   --Do nothing
  end
 end
end