ShapeInvaders Mac OS

1. #Set up the screen
2. importturtle
3. importmath
4. wn =turtle.Screen()
5. wn.title('Space Invaders')
6. #Draw border
7. border_pen.speed(0)
8. border_pen.penup()
9. border_pen.pendown()
10. for side inrange(4):
11. border_pen.lt(90)
12. player =turtle.Turtle()
13. player.shape('triangle')
14. player.speed(0)
15. player.setheading(90)
16. playerspeed =15
17. enemy =turtle.Turtle()
18. enemy.shape('circle')
19. enemy.speed(0)
20. bullet =turtle.Turtle()
21. bullet.shape('triangle')
22. bullet.speed(0)
23. bullet.shapesize(0.5,0.5)
24. #ready - ready to fire
25. bulletstate ='ready'
26. #move the player left and right
27. x = player.xcor()
28. if x < -280:
29. player.setx(x)
30. x = player.xcor()
31. if x >280:
32. player.setx(x)
33. def fire_bullet():
34. #Declare Bullet state as global if it needs changed
35. if bulletstate 'ready':
36. #move the bullet just above the player
37. y = player.ycor() + 10
38. bullet.showturtle()
39. def isCollision(t1, t2):
40. d =math.sqrt(math.pow(t1.xcor()-t2.xcor(),2) + math.pow(t1.ycor()-t2.ycor(),2))
41. returnTrue
42. returnFalse
43. #Set keyboard bindings
44. turtle.onkey(move_right,'Right')
45. turtle.onkey(fire_bullet,'space')
46. whileTrue:
47. #move the enemy
48. x += enemyspeed
49. if enemy.xcor()>280:
50. y -=40
51. enemy.sety(y)
52. if enemy.xcor()< -280:
53. y -=40
54. enemy.sety(y)
55. y = bullet.ycor()
56. bullet.sety(y)
57. #Check if the bullet has gone to the top
58. bullet.hideturtle()
59. #Check for collision between the bullet and the enemy
60. #Reset the bullet
61. bulletstate ='ready'
62. #Reset the enemy

Shape Invaders Mac Os 11

#Space Invaders - Part 1 #Set up the screen #Python 2.7 on Mac import turtle import os import math #Set up the screen wn = turtle.Screen() wn.bgcolor('black') wn.title('Space Invaders') #Draw border border_pen = turtle.Turtle() border_pen.speed(0) border_pen.color('white') border_pen.penup() border_pen.setposition(-300,-300) border_pen.pendown() border_pen.pensize(3) for side in range(4): border_pen.fd(600) border_pen.lt(90) border_pen.hideturtle() #Ceate the playerurtle player = turtle.Turtle() player.color('blue') player.shape('triangle') player.penup() player.speed(0) player.setposition(0, -250) player.setheading(90) playerspeed = 15 #Create the enemy enemy = turtle.Turtle() enemy.color('red') enemy.shape('circle') enemy.penup() enemy.speed(0) enemy.setposition(-200, 250) enemyspeed = 2 #create the player bullet bullet = turtle.Turtle() bullet.color('yellow') bullet.shape('triangle') bullet.penup() bullet.speed(0) bullet.setheading(90) bullet.shapesize(0.5, 0.5) bullet.hideturtle() bulletspeed = 20 #Define bullet state #ready - ready to fire #fire - bullet is firing bulletstate = 'ready' #move the player left and right def move_left(): x = player.xcor() x -= playerspeedss if x < -280: x = - 280 player.setx(x) def move_right(): x = player.xcor() x += playerspeed if x > 280: x = 280 player.setx(x) def fire_bullet(): #Declare Bullet state as global if it needs changed global bulletstate if bulletstate 'ready': bulletstate = 'fire' #move the bullet just above the player x = player.xcor() y = player.ycor() + 10 bullet.setposition(x, y) bullet.showturtle() def isCollision(t1, t2): d = math.sqrt(math.pow(t1.xcor()-t2.xcor(),2) + math.pow(t1.ycor()-t2.ycor(),2)) if d < 20: return True else: return False #Set keyboard bindings turtle.listen() turtle.onkey(move_right, 'Right') turtle.onkey(move_left, 'Left') turtle.onkey(fire_bullet, 'space') #main game loop while True: #move the enemy x = enemy.xcor() x += enemyspeed enemy.setx(x) #Move the enemy back and down if enemy.xcor() > 280: y = enemy.ycor() y -= 40 enemyspeed *= -1 enemy.sety(y) if enemy.xcor() < -280: y = enemy.ycor() y -= 40 enemyspeed *= -1 enemy.sety(y) #move the bullet y = bullet.ycor() y += bulletspeed bullet.sety(y) #Check if the bullet has gone to the top if bullet.ycor() > 275: bullet.hideturtle() bulletstate = 'ready' #Check for collision between the bullet and the enemy if isCollision(bullet, enemy): #Reset the bullet bullet.hideturtle() bulletstate = 'ready' bullet.setposition(0, -400) #Reset the enemy enemy.setposition(-200, 250) delay =turtle.mainloop() ('Press enter to finsh.')