Teaching Python to 9 Year Old Girl - map mover
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The document provides a guide to creating a basic game using pygame, focusing on loading and displaying a map and a character while allowing keyboard input for movement in four directions. It breaks down the steps for initializing pygame, setting up the game window, handling events, and implementing movement logic. Additional instructions for bounds detection and customizing the character's position are included for student engagement.
Teaching Python to 9 Year Old Girl - map mover
- 2. Blank Screen 1) import pygame and sys libraries 2) initialize pygame (hint: pygame. ) 3) set size of main game screen to 480 by 320 (hint: size = ) 4) load screen display (hint: screen = pygame.display. ) 5) while loop (tip: indent everything under this) 6) for event loop (tip: pygame.event.get()) 7) check for game quit. (hint: if event.type == ) 8) quit pygame 9) exit system 10) update display (hint: pygame.display. )
- 3. Map Load Above while loop insert the line below Change map_name to the actual name of your map file. map = pygame.image.load("map_name.png")
- 4. Map Show In while loop Indent one tab and insert the code in the pink box immediately above the line pygame.display.update() screen.blit(map, (0, 0))
- 5. Set Map x and y Variables Above while loop map_x = 0 map_y = 0
- 6. Use Variables for Map Position In while loop, edit map blit statement old: screen.blit(map, (0, 0)) new: screen.blit(map, (map_x, map_y)) Replace the line above with the line below.
- 7. Move Map In while loop add the code in the pink box to move the map to the left, making the girl appear to move the right. Place below for loop code block map_x = map_x - 1
- 8. Create Variable for Direction Insert line below above while loop direction = “right”
- 9. If Direction and Move In while loop Indent one tab and insert the two lines in the pink box below the for loop code block - below sys.exit() if direction == “right”: map_x = map_x -1
- 10. if Statements for all 4 Directions if direction == “right”: map_x = map_x -1 Use the two lines below as an example and create if statements for left, up, and down. Test the game after you create each direction by changing the direction variable near the top of your program code. direction = “right” In your code, edit the line below to test each direction.
- 11. Keyboard Input - Down In while loop, find for event loop. It looks like the code in the blue box. Once you find it, put the code in the pink box below it with one indent past the for. if event.type == pygame.KEYDOWN: if event.key == pygame.K_DOWN: direction = "down" for event in pygame.event.get():
- 12. Test Keyboard Input direction = “up” At the top of your code, set the initial direction to “up” Run the game. After the map starts moving, press the down arrow on your keyboard.
- 13. 4 Direction Keyboard Input Using the two lines of code below as an example, create if statements for up, right, and left. if event.key == pygame.K_DOWN: direction = "down" Test your program after you set each direction.
- 14. Girl Load Above while loop, insert the line below girl= pygame.image.load("girl.png")
- 15. Girl Show In while loop Indent one tab and place line in pink box above pygame.display.update() and below screen.blit(map, (map_x, map_y) screen.blit(girl, (100, 100)) Adjust the numbers 100, 100 so that the girl is in the center of the screen.
- 16. Bounds Detection Edit move statements if direction == "left": if map_x < 0: map_x = map_x + 1 if direction == "up": if map_y < 0: map_y = map_y + 1
- 17. Right Boundary if direction == "right": if map_x > -1216 + 480: map_x = map_x - 1 1216 is the width of the map. Change the number if the map is bigger or smaller. 480 is the width of the screen.
- 18. Down Boundary if direction == "down": if map_y > -896 + 320: map_y = map_y - 1 896 is the height of the map. Change the number if the map is bigger or smaller. 320 is the height of the screen.
- 19. Yay! You’re Finished Additional Information follows
- 20. Vocabulary import libraries pygame initialization main while loop or main game loop for loop if statement
- 21. for loop code block for loop code block
- 22. import pygame, sys pygame.init() size = (480, 320) screen = pygame.display.set_mode(size) map = pygame.image.load("caitlyn_map. png") girl = pygame.image.load("girl.png") map_x = 0 map_y = 0 direction = "up" while True: for event in pygame.event.get(): if event.type == pygame.KEYDOWN: if event.key == pygame.K_DOWN: direction = "down" if event.key == pygame.K_UP: direction = "up" if event.key == pygame.K_RIGHT: direction = "right" if event.key == pygame.K_LEFT: direction = "left" if event.type == pygame.QUIT: pygame.quit() sys.exit() if direction == "left": if map_x < 0: map_x = map_x + 1 if direction == "up": if map_y < 0: map_y = map_y + 1 if direction == "down": if map_y > -896 + 320: map_y = map_y - 1 if direction == "right": if map_x > -1216 + 480: map_x = map_x - 1 screen.blit(map,(map_x,map_y)) screen.blit(girl, (240-32,160-32)) pygame.display.update()
- 24. Target Students 9 year old girl Completed the following drills at least 5 times per drill over several months: ● The Blank Screen ● The Stationary Square ● The Moving Square
- 25. Alternate Lessons If the student is older than 9 and has a mobile phone, suggest these: ● Mouse and Touchscreen Control ● Going Mobile - Python on Android