Python pygame help

I need help adding the ability to make my car shoot and Make the blocks explode when shot

here is my code:

import pygame import time import random

pygame.init()

display_width = 800 display_height = 600

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

block_color = (53,115,255)

car_width = 73

gameDisplay = pygame.display.set_mode((display_width,display_height)) pygame.display.set_caption('A bit Racey') clock = pygame.time.Clock()

carImg = pygame.image.load('racecar.png')

def things_dodged(count): font = pygame.font.SysFont(None, 25) text = font.render("Dodged: "+str(count), True, black) gameDisplay.blit(text,(0,0))

def things(thingx, thingy, thingw, thingh, color): pygame.draw.rect(gameDisplay, color, [thingx, thingy, thingw, thingh])

def car(x,y): gameDisplay.blit(carImg,(x,y))

def text_objects(text, font): textSurface = font.render(text, True, black) return textSurface, textSurface.get_rect()

def message_display(text): largeText = pygame.font.Font('freesansbold.ttf',115) TextSurf, TextRect = text_objects(text, largeText) TextRect.center = ((display_width/2),(display_height/2)) gameDisplay.blit(TextSurf, TextRect)

pygame.display.update()

time.sleep(2)

game_loop()

def crash(): message_display('You Crashed') def game_loop(): x = (display_width * 0.45) y = (display_height * 0.8)

x_change = 0

thing_startx = random.randrange(0, display_width) thing_starty = -600 thing_speed = 4 thing_width = 100 thing_height = 100

thingCount = 1

dodged = 0

gameExit = False

while not gameExit:

for event in pygame.event.get(): if event.type == pygame.QUIT: pygame.quit() quit()

if event.type == pygame.KEYDOWN: if event.key == pygame.K_LEFT: x_change = -5 if event.key == pygame.K_RIGHT: x_change = 5

if event.type == pygame.KEYUP: if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT: x_change = 0

x += x_change gameDisplay.fill(white)

# things(thingx, thingy, thingw, thingh, color) things(thing_startx, thing_starty, thing_width, thing_height, block_color)

thing_starty += thing_speed car(x,y) things_dodged(dodged)

if x > display_width - car_width or x < 0: crash()

if thing_starty > display_height: thing_starty = 0 - thing_height thing_startx = random.randrange(0,display_width) dodged += 1 thing_speed += 1 thing_width += (dodged * 1.2)

if y < thing_starty+thing_height: print('y crossover')

if x > thing_startx and x < thing_startx + thing_width or x+car_width > thing_startx and x + car_width < thing_startx+thing_width: print('x crossover') crash() pygame.display.update() clock.tick(60)

game_loop() pygame.quit() quit()

Please help me and explain where to put everything and how the added code works!