01_views.py Full Listing#

01_views.py#
  1import random
  2import arcade
  3
  4# --- Constants ---
  5SPRITE_SCALING_PLAYER = 0.5
  6SPRITE_SCALING_COIN = .25
  7COIN_COUNT = 50
  8
  9SCREEN_WIDTH = 800
 10SCREEN_HEIGHT = 600
 11SCREEN_TITLE = "Implement Views Example"
 12
 13
 14class MyGame(arcade.Window):
 15    """ Our custom Window Class"""
 16
 17    def __init__(self):
 18        """ Initializer """
 19        # Call the parent class initializer
 20        super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
 21
 22        # Variables that will hold sprite lists
 23        self.player_list = None
 24        self.coin_list = None
 25
 26        # Set up the player info
 27        self.player_sprite = None
 28        self.score = 0
 29
 30        # Don't show the mouse cursor
 31        self.set_mouse_visible(False)
 32
 33        arcade.set_background_color(arcade.color.AMAZON)
 34
 35    def setup(self):
 36        """ Set up the game and initialize the variables. """
 37
 38        # Sprite lists
 39        self.player_list = arcade.SpriteList()
 40        self.coin_list = arcade.SpriteList()
 41
 42        # Score
 43        self.score = 0
 44
 45        # Set up the player
 46        # Character image from kenney.nl
 47        self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/femalePerson_idle.png",
 48                                           SPRITE_SCALING_PLAYER)
 49        self.player_sprite.center_x = 50
 50        self.player_sprite.center_y = 50
 51        self.player_list.append(self.player_sprite)
 52
 53        # Create the coins
 54        for i in range(COIN_COUNT):
 55
 56            # Create the coin instance
 57            # Coin image from kenney.nl
 58            coin = arcade.Sprite(":resources:images/items/coinGold.png",
 59                                 SPRITE_SCALING_COIN)
 60
 61            # Position the coin
 62            coin.center_x = random.randrange(SCREEN_WIDTH)
 63            coin.center_y = random.randrange(SCREEN_HEIGHT)
 64
 65            # Add the coin to the lists
 66            self.coin_list.append(coin)
 67
 68    def on_draw(self):
 69        """ Draw everything """
 70        self.clear()
 71        self.coin_list.draw()
 72        self.player_list.draw()
 73
 74        # Put the text on the screen.
 75        output = f"Score: {self.score}"
 76        arcade.draw_text(output, 10, 20, arcade.color.WHITE, 14)
 77
 78    def on_mouse_motion(self, x, y, dx, dy):
 79        """ Handle Mouse Motion """
 80
 81        # Move the center of the player sprite to match the mouse x, y
 82        self.player_sprite.center_x = x
 83        self.player_sprite.center_y = y
 84
 85    def on_update(self, delta_time):
 86        """ Movement and game logic """
 87
 88        # Call update on all sprites (The sprites don't do much in this
 89        # example though.)
 90        self.coin_list.update()
 91
 92        # Generate a list of all sprites that collided with the player.
 93        coins_hit_list = arcade.check_for_collision_with_list(self.player_sprite, self.coin_list)
 94
 95        # Loop through each colliding sprite, remove it, and add to the score.
 96        for coin in coins_hit_list:
 97            coin.remove_from_sprite_lists()
 98            self.score += 1
 99
100
101def main():
102    """ Main function """
103    window = MyGame()
104    window.setup()
105    arcade.run()
106
107
108if __name__ == "__main__":
109    main()