game-utils 0.2.5

A pygame engine for common game operations like vector math and maintaining events in the game loop

Game Utils

0.2.5

game-utils is a pygame engine. The engine includes modules to facilitate boilerplate game operations.

Requirements

Dependences:

• pygame
• numpy

Example usage

from game_utils.game import Game
from game_utils.screen import ScreenSettings
import pygame

class MyAwesomeGame(Game):
    def __init__(self, player_speed: int, screen_settings: ScreenSettings):
        super().__init__(screen_settings)

        # Where, and how big, to draw the player.
        # I like to scale things by the screen size.
        self.player_radius = self.screen_settings.height / 4
        self.player_rect = pygame.Rect(
            self.screen_settings.height / 2 - self.player_radius,
            self.screen_settings.width / 2 - self.player_radius,
            self.player_radius * 2,
            self.player_radisu * 2,
        )
        self.player_speed = player_speed

    def _update_screen(self):
        self.screen_settings.screen.fill(
            self.screen_settings.bg_color or "dodgerblue2"
        )

        pygame.draw.circle(
            self.screen_settings.screen,
            "lightseagreen",
            self.player_rect.center,
            self.player_radius
        )

    def _update(self):
        # any other game logic...
        # This came from a tutorial I found on custom events...
        pressed_keys = pygame.key.get_pressed()
        up, down, left, right = map(
            lambda key: key * self.player_speed,
            [pressed_keys[key] for key in [pygame.K_UP, pygame.K_DOWN, pygame.K_LEFT, pygame.K_RIGHT]] 
        )

        self.player_rect.move_ip((-left + right, -up + down))

    def _events(self, event: pygame.events.Event):
        pressed_keys = pygame.key.get_pressed()
        if pressed_keys[pygame.ESCAPE]:
            self.running = False

if __name__ == "__main__":
    # these could also come from a config file
    game = MyAwesomeGame(
        player_speed=10,
        screen_settings=Game.ScreenSettings(
            bg_color="coral2",
            width=600,
            height=400
        )
    )

    print("Starting game...")
    game.run()
    print("Thanks for playing!")

Toolkit

Manual library installation

Run this command in your pygame project to install the game-utils package manually into your code base

python -m game-utils.toolkit

This will download the whole library into your project. Some platforms don't allow you to add Python packages, so it might be prudent to pull this library directly into your code. Batocera is an example, as well as other Raspberry Pi systems that come packaged without the ability to install new software.

Demo Game Run:

python -m game-utils.demo

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See Also...

My ongoing game projects

• Madmadam Games gitlab