Term 3 Study Guide

Question 0

black =( 0, 0, 0)
white =(255,255,255)
red =(255,0,0)

Answer 0

Defined some colors

Question 1

Import pygame

Import random

Answer 1

Imports needed modules

Question 2

class Block(pygame.sprite.Sprite):

Answer 2

Creates the block class - it derives from the Sprite class in Pygame

Question 3

def __init__(self, color, width, height):

Answer 3

Constructs the color of the block and the width and height

Question 4

pygame.sprite.Sprite.__init__(self)

Answer 4

Calls the parent class constructor

Question 5

self. image = pygame.Surface([width, height])

self. image.fill(color)

Answer 5

Creates and image and fills it with color

Question 6

self.rect = self.image.get_rect()

Answer 6

Fetches the rectangle object that has the dimensions of the image

Question 7

pygame.init()

Answer 7

Initializes pygame

Question 8

screen_width=700
screen_height=400
screen=pygame.display.set_mode([sceen_width,screen_height])

Answer 8

Sets the width and height of the screen

Question 9

block_list = pygame.sprite.Group()

Answer 9

This is a list of ‘spites’. Each block in the program is added to this list. The list is managed by a class called ‘Group’.

Question 10

all_sprites_list = pygame.sprite.Group()

Answer 10

This is a list of every sprite, including all blocks as well as the player block.

Question 11

for i in range(50):

block = Block(black,20,15)

Answer 11

Uses a loop to produce 50 blocks

Question 12

block. rect.x = random.randrange(screen_width)

block. rect.y = random.randrange(screen_height)

Answer 12

Sets a random location for the block

Question 13

block_list.add(block)

all_sprites_list.add(block)

Answer 13

Add the block to the list of objects

Question 14

player = Block(red, 20, 15)

all_sprites_list.add(player)

Answer 14

Creates a red player block

Question 15

done = False

Answer 15

Loops until the user click the close button

Question 16

clock = pygame.time.Clock()

Answer 16

Manages how fast the screen updates

Question 17

while done==False:
for event in pygame.event.get():
if event.type==pygame.QUIT:
done = true

Answer 17

This is the main program loop

Question 18

screen.fill(white)

Answer 18

Fills the screen with white

Question 19

pos = pygame.mouse.get_pos()

Answer 19

Gets the current mouse position and returns the positions as a list of two numbers

Question 20

player. rect.x = pos[0]

player. rect.x = pos[1]

Answer 20

Fetches the x and y out of the list and sets the player object to the mouse location.

Question 21

blocks_hit_list = pygame.sprite.spritecollide(player, block_list, True)

Answer 21

checks if the player is colliding with anything if so erases the block.

Question 22

for block in blocks_hit_list:
score +=1
print( score )

Answer 22

Checks the list of collisions and increases the score

Question 23

all_sprites_list.draw(screen)

Answer 23

Draws all of the sprites

Question 24

clock.tick(20)

Answer 24

Sets the clock to 20 frames per second

Question 25

pygame.display.flip()

Answer 25

Updates the screen with what is drawn

Question 26

pygame.quit()

Answer 26

Used to avoid glitches in idle