Shoot Bullets Upwards

Screenshot of using sprites to shoot things
sprite_bullets.py
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"""
Sprite Bullets

Simple program to show basic sprite usage.

Artwork from http://kenney.nl
"""
import random
import arcade

SPRITE_SCALING = 0.5

SCREEN_WIDTH = 800
SCREEN_HEIGHT = 600

BULLET_SPEED = 5


class Bullet(arcade.Sprite):
    def update(self):
        self.center_y += BULLET_SPEED


class MyAppWindow(arcade.Window):
    """ Main application class. """

    def __init__(self):
        super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, "Sprites and Bullets Demo")

        """ Set up the game and initialize the variables. """

        # Sprite lists
        self.all_sprites_list = arcade.SpriteList()
        self.coin_list = arcade.SpriteList()
        self.bullet_list = arcade.SpriteList()

        # Set up the player
        self.score = 0
        self.score_text = None
        self.player_sprite = arcade.Sprite("images/character.png", SPRITE_SCALING)
        self.player_sprite.center_x = 50
        self.player_sprite.center_y = 70
        self.all_sprites_list.append(self.player_sprite)

        # Load sounds
        self.gun_sound = arcade.sound.load_sound("sounds/laser1.ogg")
        self.hit_sound = arcade.sound.load_sound("sounds/phaseJump1.ogg")

        for i in range(50):

            # Create the coin instance
            coin = arcade.Sprite("images/coin_01.png", SPRITE_SCALING / 3)

            # Position the coin
            coin.center_x = random.randrange(SCREEN_WIDTH)
            coin.center_y = random.randrange(120, SCREEN_HEIGHT)

            # Add the coin to the lists
            self.all_sprites_list.append(coin)
            self.coin_list.append(coin)

        # Don't show the mouse cursor
        self.set_mouse_visible(False)

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

    def on_draw(self):
        """
        Render the screen.
        """

        # This command has to happen before we start drawing
        arcade.start_render()

        # Draw all the sprites.
        self.coin_list.draw()
        self.bullet_list.draw()
        self.player_sprite.draw()

        # Put the text on the screen.
        output = f"Score: {self.score}"

        # Is this the same text as last frame? If not, set up a new text object
        if not self.score_text or output != self.score_text.text:
            self.score_text = arcade.create_text(output, arcade.color.WHITE, 14)
        # Render the text
        arcade.render_text(self.score_text, 10, 20)

    def on_mouse_motion(self, x, y, dx, dy):
        """
        Called whenever the mouse moves.
        """
        self.player_sprite.center_x = x

    def on_mouse_press(self, x, y, button, modifiers):
        """
        Called whenever the mouse button is clicked.
        """
        # Gunshot sound
        arcade.sound.play_sound(self.gun_sound)
        # Create a bullet
        bullet = Bullet("images/laserBlue01.png", SPRITE_SCALING * 1.5)

        # The image points to the right, and we want it to point up. So
        # rotate it.
        bullet.angle = 90

        # Position the bullet
        bullet.center_x = self.player_sprite.center_x
        bullet.bottom = self.player_sprite.top

        # Add the bullet to the appropriate lists
        self.all_sprites_list.append(bullet)
        self.bullet_list.append(bullet)

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

        # Call update on all sprites (The sprites don't do much in this
        # example though.)
        self.all_sprites_list.update()

        # Loop through each bullet
        for bullet in self.bullet_list:

            # Check this bullet to see if it hit a coin
            hit_list = arcade.check_for_collision_with_list(bullet,
                                                            self.coin_list)

            # If it did, get rid of the bullet
            if len(hit_list) > 0:
                bullet.kill()

            # For every coin we hit, add to the score and remove the coin
            for coin in hit_list:
                coin.kill()
                self.score += 1

                # Hit Sound
                arcade.sound.play_sound(self.hit_sound)

            # If the bullet flies off-screen, remove it.
            if bullet.bottom > SCREEN_HEIGHT:
                bullet.kill()


def main():
    MyAppWindow()
    arcade.run()


if __name__ == "__main__":
    main()