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Course: Python Game Development : Build 5 Fun Pr...
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Curriculum

Python Game Development : Build 5 Fun Projects with Pygame

Text lesson

Main Setup :Project 5 : 2D ball racing game

Functions:

Collision Detection Function

  • The check_enemy_collision function detects collisions between balls and enemies.
  • It iterates through the list of enemy positions and calculates the distance between each enemy and the ball.
  • If the distance is less than or equal to the sum of the radii of the ball and the enemy, a collision is detected.

# Function to check collision with enemies

def check_enemy_collision(x, y):

for enemy_x, enemy_y in enemies:

distance_squared = (x – enemy_x) ** 2 + (y – enemy_y) ** 2

if distance_squared <= (enemy_radius + ball_radius) ** 2:

return True

return False

Enemy Spawning Function:

  • The spawn_enemies function generates random positions for enemies above the screen and adds them to the list of enemies.

# Function to spawn enemies

def spawn_enemies():

x = random.randint(200, 1000)

y = random.randint(-100, –50)

enemies.append((x, y))

Start and End Screen Functions:

  • Placeholder functions for displaying the start and end screens are defined.
  • These functions will render text messages indicating the start and end of the game.

# Function to display start screen

def show_start_screen():

# Code to render and display start screen

pass

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