You are going to screenshot all of your work into a Powerpoint file.

To download the PowerPoint by clicking on the image below

To save your powerpoint go to:

File explorer

-> Year 9 Common Area :S

-> You can save here

-> Computer Science

-> Term 3

-> Lesson 5

Save the Powerpoint file: as your name

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Complete Task 1 in your Powerpoint

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Activity 1 - Creating the moving crosshair sprite

Complete the following:

1. Start a new file with a blank template
2. Save it as target.py
3. Right click on the image below and save it in your Computer Science folder.

4. Save it as crosshair.png
5. Add the following code into your variables area.
##### Your Variables go here ####
image_crosshair = pygame.image.load("crosshair.png")
image_crosshair_sizeXY = [50, 50]
crosshair_position = [300, 100]
image_crosshair = pygame.transform.scale(image_crosshair, image_crosshair_sizeXY)
pygame.mouse.set_visible(False)

6. Add the following code into your code starts here area.
    #### your code starts here ####
    screen.fill(black)
     crosshair = screen.blit(image_crosshair, crosshair_position)
     mouse_position = pygame.mouse.get_pos()
     crosshair_position = mouse_position[0], mouse_position[1]
     new_X_position = mouse_position[0] - (image_crosshair_sizeXY[0] / 2)
     new_Y_position = mouse_position[1] - (image_crosshair_sizeXY[1] / 2)
     crosshair_position = new_X_position, new_Y_position

Do not forget to indent your code

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When you are finished screenshot your working code into your Learning Journal

we will create another sprite using a basic shape called target. We will then detect if player1 has collided with the target.

First we need a variable to hold the x and y position of the target.

Activity 2

1. Add the following code into our variables area.
targetXY = [200, 200]

2. Next, we will draw the target sprite onto the screen.
3. Add the following lines of code into the ## your code starts here ## area.
target = pygame.draw.circle(screen, red, (300, 100), 20)
4. Then we will check for a collision.
if crosshair.colliderect(target):
    print("Hit!")

Run the code, and see what happens?

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When you are finished screenshot your working code into your Learning Journal

Printing 'hit' in the console is not very exciting. Let's change the code so the target disappears and reappears at a random x and y position when touched by the player sprite.

Activity 3

The first this we need to do is import the random library functions

1. On line 4 of your code add the following line of code:
import random
2. Next, we can use a new function called: random.randint() to create random numbers for the x and y postions of the target. Comment out the print("hit") line you wrote previously by placing a hash symbol (#) in front of it.
3. Then add the following lines underneath. Don't forget that they're part of the IF block, so will need to be indented with the tab key three times.
targetXY[0] = random.randint(0, SCREENWIDTH)
targetXY[1] = random.randint(0, SCREENHEIGHT)
4. Finally change the line
target = pygame.draw.circle(screen, red, (300, 100), 20)

5. to:
target = pygame.draw.circle(screen, red, targetXY, 20)


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Run the code to test it, and see what happens?

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6. When you are finished screenshot your working code into your Learning Journal

There are a number of improvements we can make.

It would be better if the user had to collide with the target and click the mouse to score a point. We could add this by changing our collision code slightly.

Task 3

Complete the following:

1. Add another IF statement inside the game loop to force the user to click on the target.
if pygame.mouse.get_pressed()[0] == 1:
     if crosshair.colliderect(target):


The IF statement is to be added above our first IF statement ensure it is indented correctly.

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When you are finished screenshot your working code into your Learning Journal

Our final improvement is to remove the firelock bug we have introduced.Which means the player can hold down the mouse button constantly, so that they just have to touch the target

To fix this we have to add a boolean flag variable to prevent the player firing again until the mouse button has been released.

Task 4

Complete the following:

1. Create the fireLock variable and set to: 0 in our variables section
fireLock = 0

2. Next, we'll need to set: fireLock to: 1 when the mouse button is pushed, by modifying our IF statement from before a little bit.
if pygame.mouse.get_pressed()[0] == 1 and fireLock == 0: fireLock = 1
3. Finally, we'll need to make it so that we only reset: fireLock to 0 when the mouse button is released. We do this by adding another event listener to our event loop.
if event.type == pygame.MOUSEBUTTONUP:
    fireLock = 0

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When you are finished screenshot your working code into your Learning Journal