pymunk_demo_platformer_04.py Full Listing

pymunk_demo_platformer_04.py
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"""
Example of Pymunk Physics Engine Platformer
"""
import math
from typing import Optional
import arcade

SCREEN_TITLE = "PyMunk Platformer"

# How big are our image tiles?
SPRITE_IMAGE_SIZE = 128

# Scale sprites up or down
SPRITE_SCALING_PLAYER = 0.5
SPRITE_SCALING_TILES = 0.5

# Scaled sprite size for tiles
SPRITE_SIZE = int(SPRITE_IMAGE_SIZE * SPRITE_SCALING_PLAYER)

# Size of grid to show on screen, in number of tiles
SCREEN_GRID_WIDTH = 25
SCREEN_GRID_HEIGHT = 15

# Size of screen to show, in pixels
SCREEN_WIDTH = SPRITE_SIZE * SCREEN_GRID_WIDTH
SCREEN_HEIGHT = SPRITE_SIZE * SCREEN_GRID_HEIGHT


class GameWindow(arcade.Window):
    """ Main Window """

    def __init__(self, width, height, title):
        """ Create the variables """

        # Init the parent class
        super().__init__(width, height, title)

        # Player sprite
        self.player_sprite: Optional[arcade.Sprite] = None

        # Sprite lists we need
        self.player_list: Optional[arcade.SpriteList] = None
        self.wall_list: Optional[arcade.SpriteList] = None
        self.bullet_list: Optional[arcade.SpriteList] = None
        self.item_list: Optional[arcade.SpriteList] = None

        # Track the current state of what key is pressed
        self.left_pressed: bool = False
        self.right_pressed: bool = False

        # Set background color
        arcade.set_background_color(arcade.color.AMAZON)

    def setup(self):
        """ Set up everything with the game """

        # Create the sprite lists
        self.player_list = arcade.SpriteList()
        self.bullet_list = arcade.SpriteList()

        # Map name
        map_name = "pymunk_test_map.json"

        # Load in TileMap
        tile_map = arcade.load_tilemap(map_name, SPRITE_SCALING_TILES)

        # Pull the sprite layers out of the tile map
        self.wall_list = tile_map.sprite_lists["Platforms"]
        self.item_list = tile_map.sprite_lists["Dynamic Items"]

        # Create player sprite
        self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/femalePerson_idle.png",
                                           SPRITE_SCALING_PLAYER)
        # Set player location
        grid_x = 1
        grid_y = 1
        self.player_sprite.center_x = SPRITE_SIZE * grid_x + SPRITE_SIZE / 2
        self.player_sprite.center_y = SPRITE_SIZE * grid_y + SPRITE_SIZE / 2
        # Add to player sprite list
        self.player_list.append(self.player_sprite)

    def on_key_press(self, key, modifiers):
        """Called whenever a key is pressed. """
        pass

    def on_key_release(self, key, modifiers):
        """Called when the user releases a key. """
        pass

    def on_update(self, delta_time):
        """ Movement and game logic """
        pass

    def on_draw(self):
        """ Draw everything """
        arcade.start_render()
        self.wall_list.draw()
        self.bullet_list.draw()
        self.item_list.draw()
        self.player_list.draw()


def main():
    """ Main function """
    window = GameWindow(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
    window.setup()
    arcade.run()


if __name__ == "__main__":
    main()