tutorial:

• restart = press alt key
• drawing players = hold down right mouse button and drag with mouse
• drawing walls = hold down S key and drag with mouse

player movement:

• left = hold down left key
• right = hold down right key
• up = hold down up key
• down = hold down down key

how to make a game:

• first start the game
• draw the player
• draw the wall
• move the player