def create_lean(ai_settings, screen, leans, lean_number, row_number):
"""Create lean and place it in a row"""
lean = Lean(ai_settings, screen)
lean_width = lean.rect.width
lean.x = lean_width + 2 * lean_width * lean_number
lean.rect.x = lean.x
lean.rect.y = lean.rect.height + 2 * lean.rect.height * row_number
leans.add(lean)
def create_fleet(ai_settings, screen, ship, leans):
"""Create a full fleet of lean cups."""
#create an alien and find the number of aliens in a row
#spacing between each alien is equal to one alien width
lean = Lean(ai_settings, screen)
number_leans_x = get_number_leans_x(ai_settings, lean.rect.width)
number_rows = get_number_rows(ai_settings, ship.rect.height,
lean.rect.height)
#create the first row of aliens
for row_number in range(number_rows):
for lean_number in range(number_leans_x):
create_lean(ai_settings, screen, leans, lean_number, row_number)
