Answer to Question #158542 in Python for sam

Question

i dont know how to code an animation for computer programming. In this assignment, you will use all of the graphics commands you have learned to create an animated scene. Your program should have a clear theme and tell a story. You may pick any school-appropriate theme that you like.

The program must include a minimum of:

• 5 circles
• 5 polygons
• 5 line commands
• 2 for loops
• 1 global variable

Answer 1

from math import sqrt
try:
import simpleguik
except ImportError:
import SimpleGUICS2Pygame.simpleguics2pygame as simplegui

message = 'Welcome! Click your mouse to start animation'
colors = ['Green', 'Red', 'Yellow']
color = 0
width = 600
height = 600
limits = [20, width, 180, height]
square_size = 25
circle_size = 0.5 * sqrt(2) * square_size
position = [limits[0], limits[2]]
pen_width = 4
pen_hwidth = 2
font_size = 24
hacked = False

def keydown(key):
global color
color = (color + 1) % len(colors)

def click(position):
global message, hacked
message = 'Y got H.@.C.K.E.DDD !!!'
hacked = True

def square(x, y, a):
return [[x, y], [x + a, y], [x + a, y + a], [x, y + a]]

def center(x, y, a):
return x + a / 2.0, y + a / 2.0

def plus(x, y, a):
cx = x + a / 2.0
cy = y + a / 2.0
return [[[cx, y], [cx, y + a]], [[x, cy], [x + a, cy]]]

def screensaver(canvas):
global position
position[0] += 2
if not position[0] < limits[1] - square_size:
position[0] = limits[0]
position[1] += 3
if not position[1] < limits[3] - square_size:
position[1] = limits[2]

for i in range(5):
dx, dy = i * square_size / 2., i * square_size / 0.7,
# dx, dy = 0, 0
px, py = position[0] + dx, position[1] + dy
if px >= limits[1] - square_size:
px = limits[0] + px - limits[1] + square_size
if py >= limits[3] - square_size:
py = limits[2] + py - limits[3] + square_size

sq = square(px, py, square_size)
canvas.draw_polygon(sq, pen_width, 'White')

cnt = center(px, py, square_size)
canvas.draw_circle(cnt, circle_size, pen_width / 2, colors[color])

pl = plus(px, py, square_size)
for ln in pl:
canvas.draw_line(ln[0], ln[1], pen_width / 2, 'Blue')
  

def draw_handler(canvas):
text_width = frame.get_canvas_textwidth(message, font_size)
centered_x = (width - text_width) / 2
canvas.draw_text(message, [centered_x, 112], font_size, 'Red')

if hacked:
screensaver(canvas)

frame = simplegui.create_frame('Animation', width, height)
frame.set_canvas_background('Black')
frame.set_keydown_handler(keydown)
frame.set_mouseclick_handler(click)
frame.set_draw_handler(draw_handler)
frame.start()