G11_C8

Player Lives and declaring the WINNER

Activity Flow	Slide No.	Topic	Time
	4-10	Warm up Quiz+Revision	5 min
TA1	11-17	Ball bypassing the paddle and hitting the wall. Player life is decremented	7 min
TA2	18-20	Game over is displayed	6 min
TA3	21-23	Code for winner declaration	10 min
SA1	24	Student Activity 1	2 min
SA2	25-26	Student Activity 2	2 min
SAA 1	27-28	Student Additional Activity 1
SAA 2	29	Student Additional Activity 2
	30-32	Post Class Quiz	4 min

Slide No.	Topic
18	TA1 solution
21	TA2 solution
25	SA1 solution
29	SAA1 solution
30	SAA2 solution

Class Structure

Preparation and Reference

Pre-Requisites

FOR TEACHER

FOR STUDENTS

1. Computer with an Internet connection.

2. The latest browser installed.

1. Computer with an Internet connection.

2. The latest browser installed.

3. Spyder installed.

4. Projector to present the screen

(WARM-UP QUIZ)

Same images

What would be the output of the

following codes:

Q.1

String and Int are the two integer datatypes, which will be resulted from the output of above two code blocks.
The output of first code block is "String".
The output of second code block is "Int"

name="Grade 11"
print(type(name))

age=68
print(type(age)

1. 0

A

B

2. 68

1. Grade 11

2. 68

C

1. String

2. Int

What would happen, when the

following code snippet runs:

for i in bricksR:
        if i.collidepoint(ball.x,ball.y):
            bricksR.remove(i)
            ballx=-ballx
            bally=-bally
            score+=3

Q.2 The x and y coordinates of the ball will get reset to 0. Score will get incremented by 3.

A

C

The x and y coordinates of the ball will get updated 10. Score will get incremented by 2.

B

The x and y coordinates of the ball will get updated. Score will get incremented by 3.

Revise!!

Created a paddle

Created a ball

import pygame
...
pygame.Rect()
....
for event in pygame.event.get():
  ...
pygame.draw.rect()
pygame.display.update()

Ball is moving in x and y direction

ballx=-1
bally=-1
...
ball.x=ball.x+ballx
    ball.y=ball.y+bally
    if ball.x>=590:
      ballx=-ballx
    if ball.x<=10:
      ball.x=-ballx
      ...

Movement of paddle in y direction.
Changing the direction of ball after hitting the paddle

...
if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_RIGHT:
            if paddle.x<540: 
                paddle.x+=paddlex
        if event.key == pygame.K_LEFT:
            if paddle.x>0:
                paddle.x-=paddlex
...
if paddle.collidepoint(ball.x,ball.y):
        bally=-bally
...

Creation of Bricks

...
  for i in range(6):
     brick=pygame.Rect(10 + i* 100,60,80,30)
     pygame.draw.rect(screen,(255,0,0),brick)
  for i in range(6):
     brick=pygame.Rect(10 + i* 100,100,80,30)
     pygame.draw.rect(screen,(255,100,0),brick)
...

Implementing Lists

...
carryOn = True
while carryOn:
    for event in pygame.event.get(): 
            if event.type == pygame.QUIT: 
                  carryOn = False    
...

Introduction to Lists, removing bricks after collision and displaying score

...
for i in bricksR:
        if i.collidepoint(ball.x,ball.y):
            bricksR.remove(i)
...
for i in bricksR:
        if i.collidepoint(ball.x,ball.y):
            bricksR.remove(i)
            ballx=-ballx
            bally=-bally
            score+=3
...
 font = pygame.font.Font(None, 34)
    text = font.render("Score: ", 1, WHITE)
    screen.blit(text, (20,10))
...

if ball.y>=590:
        lives-=1
        font = pygame.font.Font(None, 74)
        text = font.render("LOST A  LIFE", 1, WHITE)
        screen.blit(text, (150,250))
        font = pygame.font.Font(None, 34)
        text = font.render("Lives left:"+str(lives), 1, WHITE)
        screen.blit(text, (150,300))
        pygame.display.flip()
        ball.x=200
        ball.y=250
        pygame.time.wait(1000)

https://bit.ly/3AmAlrx

if lives==0:
        font = pygame.font.Font(None, 74)
        text = font.render("GAME OVER", 1, RED)
        screen.blit(text, (150,350))
        pygame.display.flip()
        pygame.time.wait(2000)

https://bit.ly/3hqDC0n

if score>=10:
        font = pygame.font.Font(None, 74)
        text = font.render("YOU WON!!", 1, RED)
        screen.blit(text, (150,350))
        pygame.display.flip()
        pygame.time.wait(2000)
        break

https://bit.ly/3wcIzQ3