Animated Sprites

Screen shot of rotating sprites
sprite_collect_rotating.py
  1"""
  2Sprite Collect Rotating Coins
  3
  4Simple program to show basic sprite usage.
  5
  6Artwork from https://kenney.nl
  7
  8If Python and Arcade are installed, this example can be run from the command line with:
  9python -m arcade.examples.sprite_collect_rotating
 10"""
 11import random
 12import arcade
 13
 14# --- Constants ---
 15SPRITE_SCALING_PLAYER = 0.5
 16SPRITE_SCALING_COIN = 0.5
 17COIN_COUNT = 50
 18
 19WINDOW_WIDTH = 1280
 20WINDOW_HEIGHT = 720
 21WINDOW_TITLE = "Sprite Collect Rotating Coins Example"
 22
 23
 24class Coin(arcade.Sprite):
 25
 26    def update(self):
 27        # Rotate the coin.
 28        # The arcade.Sprite class has an "angle" attribute that controls
 29        # the sprite rotation. Change this, and the sprite rotates.
 30        self.angle += self.change_angle
 31
 32
 33class GameView(arcade.View):
 34
 35    def __init__(self):
 36        """ Initializer """
 37        # Call the parent class initializer
 38        super().__init__()
 39
 40        # Variables that will hold sprite lists
 41        self.player_list = None
 42        self.coin_list = None
 43
 44        # Set up the player info
 45        self.player_sprite = None
 46        self.score = 0
 47
 48        # Don't show the mouse cursor
 49        self.window.set_mouse_visible(False)
 50
 51        self.background_color = arcade.color.AMAZON
 52
 53    def setup(self):
 54        """ Set up the game and initialize the variables. """
 55
 56        # Sprite lists
 57        self.player_list = arcade.SpriteList()
 58        self.coin_list = arcade.SpriteList()
 59
 60        # Score
 61        self.score = 0
 62
 63        # Set up the player
 64        # Character image from kenney.nl
 65        self.player_sprite = arcade.Sprite(
 66            ":resources:images/animated_characters/female_person/femalePerson_idle.png",
 67            scale=SPRITE_SCALING_PLAYER,
 68        )
 69        self.player_sprite.center_x = 50
 70        self.player_sprite.center_y = 50
 71        self.player_list.append(self.player_sprite)
 72
 73        # Create the coins
 74        for i in range(COIN_COUNT):
 75            # Create the coin instance
 76            # Coin image from kenney.nl
 77            coin = arcade.Sprite(
 78                ":resources:images/items/coinGold.png",
 79                scale=SPRITE_SCALING_COIN,
 80            )
 81
 82            # Position the coin
 83            coin.center_x = random.randrange(WINDOW_WIDTH)
 84            coin.center_y = random.randrange(WINDOW_HEIGHT)
 85
 86            # Set up the initial angle, and the "spin"
 87            coin.angle = random.randrange(360)
 88            coin.change_angle = random.randrange(-5, 6)
 89
 90            # Add the coin to the lists
 91            self.coin_list.append(coin)
 92
 93    def on_draw(self):
 94        """ Draw everything """
 95        self.clear()
 96        self.coin_list.draw()
 97        self.player_list.draw()
 98
 99        # Put the text on the screen.
100        output = f"Score: {self.score}"
101        arcade.draw_text(output, 10, 20, arcade.color.WHITE, 14)
102
103    def on_mouse_motion(self, x, y, dx, dy):
104        """ Handle Mouse Motion """
105
106        # Move the center of the player sprite to match the mouse x, y
107        self.player_sprite.center_x = x
108        self.player_sprite.center_y = y
109
110    def on_update(self, delta_time):
111        """ Movement and game logic """
112
113        # Call update on all sprites (The sprites don't do much in this
114        # example though.)
115        self.coin_list.update(delta_time)
116
117        # Generate a list of all sprites that collided with the player.
118        hit_list = arcade.check_for_collision_with_list(self.player_sprite, self.coin_list)
119
120        # Loop through each colliding sprite, remove it, and add to the score.
121        for coin in hit_list:
122            coin.remove_from_sprite_lists()
123            self.score += 1
124
125
126def main():
127    """ Main function """
128    # Create a window class. This is what actually shows up on screen
129    window = arcade.Window(WINDOW_WIDTH, WINDOW_HEIGHT, WINDOW_TITLE)
130
131    # Create and setup the GameView
132    game = GameView()
133    game.setup()
134
135    # Show GameView on screen
136    window.show_view(game)
137
138    # Start the arcade game loop
139    arcade.run()
140
141
142if __name__ == "__main__":
143    main()