G11_C7

Game Performance Measures

Activity Flow Slide No. Topic Time
TA 4-7 Warm up+Quiz+Revision 5 min
8-15 Understanding loops 7 min
16-21 Brick Creation 5 min
SA 22-26 Orange brick creation 5  min
27-31 Brick-ball collision 7 min
TA 32 Precap to next class 2min
Wrap - Up 33-36 Quiz 5 min
SA 38-40 Additional Activity 5 min
Slide No. Topic
14 TA1 solution
19 TA2 solution
21 TA3 solution
24 SA1 solution
30 SA2 solution
40 SAA1 solution

Class Structure

Preparation and Reference

PRE REQUISITES

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. Projetor to present the screen

first_num=2
while first_num<4:
  for i in range(1,4):
    res=i*first_num
    if res%2==0:
      print(res)
  first_num+=1

What would be the output of the

following  code:

C

Syntax error

2,4,6,6

Q.1

A

2,4,6,6

B

C

  • The while loop will iterate first_num through two values:2,3

  • The for loop will iterate i through 3 values:1,2,3.

  • Out of all the products only even ones will be printed

2,4,6

num=2
while if num==2:
  print(num)
  num=num+1

What would be the output of the

following  code:

C

2

SyntaxError

Q.2

A

SyntaxError

B

C

We cannot use an if inside the while statement itself.

No output

Revision

What we have learnt?

roll_no=[12,56,90]

Box Brackets

Comma

list.append(item)
list.remove(item)

+

-

Lists

[
]
for
i
in
list:

Remove brick

Removing a brick on collision

for i in bricksR:
        if i.collidepoint(ball.x,ball.y):
            bricksR.remove(i)

Why detect brick and ball collision?

The way forward

Brick collided with ball??

+Score

Remove brick

Change ball direction

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

How do I know the score?

Displaying the score

Are all data same?

23

String

Text-based data

Datatype: STRING (str)

Syntax:

Place in

" " (or) ' '

Example:

name="David"

Integer

Numeric

data

Datatype: INTEGER (int)

Syntax:

Nothing specific

Example:

age=68

Floating Point

Fractional

data

Datatype: FLOATING POINT (float)

Syntax:

Nothing specific

Example:

weight=72.5

Boolean

Comparison

data

Datatype: BOOLEAN (bool)

Syntax:

True

False

Example:

indian=True
name="David"
print(type(name))
age=68
print(type(age))
weight=72.5
print(type(weight))
indian=True
print(type(indian))

GREAT!

How do I show some data on the game screen?

Displaying data 

Score:34

Specify style of text

Specify content of text

Display text

Different styles of writing

Show me your style of writing

Brick disappears

How do I make the computer write in a particular style?

Selecting a style of text

pygame.font
.Font(name,size)
pygame.font
font=

How do I tell the computer what to write?

Selecting the content

font.render(text,smoothen,color)
text=

How do I show this text on the screen now?

Display the content

screen.blit(text, location)

Rectangle

draw( )

Text

blit( )

(x,y)

GREAT!

 font = pygame.font.Font(None, 34)
    text = font.render("Score: ", 1, WHITE)
    screen.blit(text, (20,10))

This just wrote the word score. What is score now?

Something missing?

Score:

??

Now let's code for ball-brick collisions.

Try to code!!

Hints:

  • First, within the loop of orange brick creation, determine if the ball and brick collided.

  • If they did:

Remove the brick from the list

Negate 'bally' to change the direction of the ball.

Increase the score by 2.

print(x==12)

What would be the output of the

following  code:

C

12

True

Q.1

A

True

B

C


When comparison is done, the output is the boolean form of True or False.

true

x="5"
print(type(x))

What would be the output of the

following  code:

C

int

str

Q.2

A

str

B

C

Although 5 is a number , here it is enclosed in inverted commas , hence it will considered as a string.

5

Now let's code for ball-brick collisions for the yellow bricks.

Try to code!!

Hints:

  • First, within the loop of orange brick creation, determine if the ball and brick collided.

  • If they did:

Remove the brick from the list

Negate 'bally' to change the direction of the ball.

Increase the score by 1.

Now let's code for ball-brick collisions.

Try to code!!

Hints:

First Name: John

Country: India

State:Bengal

  • Create a screen with the color of your choice.

  • Create one font specifying the font size.

  • Create three text variables with the different text mentioned and display on screen.

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