Install: python -m pip install pgzero
"""
Basic "Hello, World!" program in Pygame Zero
This program is designed to demonstrate the basic capabilities
of Pygame Zero. It will:
- Create a game window
- Fill the background with white
- Draw some basic shapes in different colors
- Draw some text in a specified size and color
"""
# Import pgzrun allows the program to run in Python IDLE
import pgzrun
# Set the width and height of your output window, in pixels
WIDTH = 800
HEIGHT = 600
def draw():
"""Draw is called once per frame to render everything on the screen"""
# Clear the screen first
screen.clear()
# Set the background color to white
screen.fill("white")
# Draw a blue circle with a radius of 50 in the center of the screen
screen.draw.filled_circle(
(WIDTH // 2, HEIGHT // 2), 50, "blue"
)
# Draw a red-outlined square in the top-left corner of the screen
red_square = Rect((50, 50), (100, 100))
screen.draw.rect(red_square, (200, 0, 0))
# Draw an orange caption along the bottom in 60-point font
screen.draw.text(
"Hello, World! From Pygame Zero!",
(100, HEIGHT - 50),
fontsize=60,
color="orange",
)
# Run the program
pgzrun.go()
Run with python pygame_zero/pygame_zero_basic.py
"""
Complete game in Pygame Zero
This game demonstrates some of the more advanced features of
Pygame Zero, including:
- Using sprites to render complex graphics
- Handling user input
- Sound output
"""
# Import pgzrun allows the program to run in Python IDLE
import pgzrun
# For type-hinting support
from typing import Tuple
# To randomize coin placement
from random import randint
# Set the width and height of your output window, in pixels
WIDTH = 800
HEIGHT = 600
# Set up the player
player = Actor("alien_green_stand")
player_position = WIDTH // 2, HEIGHT // 2
player.center = player_position
# Set up the coins to collect
COIN_COUNT = 10
coin_list = list()
# Set up a timer to create new coins
coin_countdown = 2.5
coin_interval = 0.1
# Score is initially zero
score = 0
def add_coin():
"""Adds a new coin to playfield, then
schedules the next coin to be added
"""
global coin_countdown
# Create a new coin Actor at a random location
new_coin = Actor(
"coin_gold", (randint(10, WIDTH - 10), randint(10, HEIGHT - 10))
)
# Add it to the global coin list
coin_list.append(new_coin)
# Decrease the time between coin appearances if there are
# fewer than three coins on the screen.
if len(coin_list) < 3:
coin_countdown -= coin_interval
# Make sure you don't go too quickly
if coin_countdown < 0.1:
coin_countdown = 0.1
# Schedule the next coin addition
clock.schedule(add_coin, coin_countdown)
def on_mouse_move(pos: Tuple):
"""Called whenever the mouse changes position
Arguments:
pos {Tuple} -- The current position of the mouse
"""
global player_position
# Set the player to the mouse position
player_position = pos
# Ensure the player doesn't move off the screen
if player_position[0] < 0:
player_position[0] = 0
if player_position[0] > WIDTH:
player_position[0] = WIDTH
if player_position[1] < 0:
player_position[1] = 0
if player_position[1] > HEIGHT:
player_position[1] = HEIGHT
def update(delta_time: float):
"""Called every frame to update game objects
Arguments:
delta_time {float} -- Time since the last frame
"""
global score
# Update the player position
player.center = player_position
# Check if the player has collided with a coin
# First, set up a list of coins to remove
coin_remove_list = []
# Check each coin in the list for a collision
for coin in coin_list:
if player.colliderect(coin):
sounds.coin_pickup.play()
coin_remove_list.append(coin)
score += 10
# Remove any coins with which you collided
for coin in coin_remove_list:
coin_list.remove(coin)
# The game is over when there are too many coins on the screen
if len(coin_list) >= COIN_COUNT:
# Stop making new coins
clock.unschedule(add_coin)
# Print the final score and exit the game
print(f"Game over! Final score: {score}")
exit()
def draw():
"""Render everything on the screen once per frame"""
# Clear the screen first
screen.clear()
# Set the background color to pink
screen.fill("pink")
# Draw the remaining coins
for coin in coin_list:
coin.draw()
# Draw the player
player.draw()
# Draw the current score at the bottom
screen.draw.text(
f"Score: {score}",
(50, HEIGHT - 50),
fontsize=48,
color="black",
)
# Schedule the first coin to appear
clock.schedule(add_coin, coin_countdown)
# Run the program
pgzrun.go()
Last modified 16 December 2024