PLAYER_W = 32
PLAYER_H = 48
PLAYER_LEFT_START = (PLAYFIELD_LEFT + (PLAYFIELD_W / 2) - (PLAYER_W / 2))
PLAYER_TOP_START = (PLAYFIELD_BOTTOM - PLAYER_H)
POWER_MIN = 1
POWER_MAX = 80
POWER_OVERFLOW_MAX = 42
SHOT_LEVEL_MAX = 9