Animated Sprites¶
sprite_collect_rotating.py¶
1"""
2Sprite Collect Rotating Coins
3
4Simple program to show basic sprite usage.
5
6Artwork from http://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"""
11
12import random
13import arcade
14import os
15
16# --- Constants ---
17SPRITE_SCALING_PLAYER = 0.5
18SPRITE_SCALING_COIN = 0.2
19COIN_COUNT = 50
20
21SCREEN_WIDTH = 800
22SCREEN_HEIGHT = 600
23SCREEN_TITLE = "Sprite Collect Rotating Coins Example"
24
25
26class Coin(arcade.Sprite):
27
28 def update(self):
29 # Rotate the coin.
30 # The arcade.Sprite class has an "angle" attribute that controls
31 # the sprite rotation. Change this, and the sprite rotates.
32 self.angle += self.change_angle
33
34
35class MyGame(arcade.Window):
36 """ Our custom Window Class"""
37
38 def __init__(self):
39 """ Initializer """
40 # Call the parent class initializer
41 super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
42
43 # Set the working directory (where we expect to find files) to the same
44 # directory this .py file is in. You can leave this out of your own
45 # code, but it is needed to easily run the examples using "python -m"
46 # as mentioned at the top of this program.
47 file_path = os.path.dirname(os.path.abspath(__file__))
48 os.chdir(file_path)
49
50 # Variables that will hold sprite lists
51 self.player_list = None
52 self.coin_list = None
53
54 # Set up the player info
55 self.player_sprite = None
56 self.score = 0
57
58 # Don't show the mouse cursor
59 self.set_mouse_visible(False)
60
61 arcade.set_background_color(arcade.color.AMAZON)
62
63 def setup(self):
64 """ Set up the game and initialize the variables. """
65
66 # Sprite lists
67 self.player_list = arcade.SpriteList()
68 self.coin_list = arcade.SpriteList()
69
70 # Score
71 self.score = 0
72
73 # Set up the player
74 # Character image from kenney.nl
75 self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/femalePerson_idle.png", SPRITE_SCALING_PLAYER)
76 self.player_sprite.center_x = 50
77 self.player_sprite.center_y = 50
78 self.player_list.append(self.player_sprite)
79
80 # Create the coins
81 for i in range(COIN_COUNT):
82 # Create the coin instance
83 # Coin image from kenney.nl
84 coin = arcade.Sprite(":resources:images/items/coinGold.png", SPRITE_SCALING_COIN)
85
86 # Position the coin
87 coin.center_x = random.randrange(SCREEN_WIDTH)
88 coin.center_y = random.randrange(SCREEN_HEIGHT)
89
90 # Set up the initial angle, and the "spin"
91 coin.angle = random.randrange(360)
92 coin.change_angle = random.randrange(-5, 6)
93
94 # Add the coin to the lists
95 self.coin_list.append(coin)
96
97 def on_draw(self):
98 """ Draw everything """
99 arcade.start_render()
100 self.coin_list.draw()
101 self.player_list.draw()
102
103 # Put the text on the screen.
104 output = f"Score: {self.score}"
105 arcade.draw_text(output, 10, 20, arcade.color.WHITE, 14)
106
107 def on_mouse_motion(self, x, y, dx, dy):
108 """ Handle Mouse Motion """
109
110 # Move the center of the player sprite to match the mouse x, y
111 self.player_sprite.center_x = x
112 self.player_sprite.center_y = y
113
114 def on_update(self, delta_time):
115 """ Movement and game logic """
116
117 # Call update on all sprites (The sprites don't do much in this
118 # example though.)
119 self.coin_list.update()
120
121 # Generate a list of all sprites that collided with the player.
122 hit_list = arcade.check_for_collision_with_list(self.player_sprite, self.coin_list)
123
124 # Loop through each colliding sprite, remove it, and add to the score.
125 for coin in hit_list:
126 coin.remove_from_sprite_lists()
127 self.score += 1
128
129
130def main():
131 """ Main method """
132 window = MyGame()
133 window.setup()
134 arcade.run()
135
136
137if __name__ == "__main__":
138 main()