Using a Background Image¶
sprite_collect_coins_background.py¶
1"""
2Sprite Collect Coins with Background
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_coins_background
10"""
11import random
12import arcade
13import os
14
15PLAYER_SCALING = 0.5
16COIN_SCALING = 0.25
17
18SCREEN_WIDTH = 1024
19SCREEN_HEIGHT = 600
20SCREEN_TITLE = "Sprite Collect Coins with Background Example"
21
22
23class MyGame(arcade.Window):
24 """
25 Main application class.
26 """
27
28 def __init__(self, width, height, title):
29 """ Initializer """
30
31 # Call the parent class initializer
32 super().__init__(width, height, title)
33
34 # Set the working directory (where we expect to find files) to the same
35 # directory this .py file is in. You can leave this out of your own
36 # code, but it is needed to easily run the examples using "python -m"
37 # as mentioned at the top of this program.
38 file_path = os.path.dirname(os.path.abspath(__file__))
39 os.chdir(file_path)
40
41 # Background image will be stored in this variable
42 self.background = None
43
44 # Variables that will hold sprite lists
45 self.player_list = None
46 self.coin_list = None
47
48 # Set up the player info
49 self.player_sprite = None
50 self.score = 0
51 self.score_text = None
52
53 # Don't show the mouse cursor
54 self.set_mouse_visible(False)
55
56 # Set the background color
57 arcade.set_background_color(arcade.color.AMAZON)
58
59 def setup(self):
60 """ Set up the game and initialize the variables. """
61
62 # Load the background image. Do this in the setup so we don't keep reloading it all the time.
63 # Image from:
64 # http://wallpaper-gallery.net/single/free-background-images/free-background-images-22.html
65 self.background = arcade.load_texture(":resources:images/backgrounds/abstract_1.jpg")
66
67 # Sprite lists
68 self.player_list = arcade.SpriteList()
69 self.coin_list = arcade.SpriteList()
70
71 # Set up the player
72 self.score = 0
73 self.player_sprite = arcade.Sprite(":resources:images/animated_characters/female_person/femalePerson_idle.png", PLAYER_SCALING)
74 self.player_sprite.center_x = 50
75 self.player_sprite.center_y = 50
76 self.player_list.append(self.player_sprite)
77
78 for i in range(50):
79
80 # Create the coin instance
81 coin = arcade.Sprite(":resources:images/items/coinGold.png", COIN_SCALING)
82
83 # Position the coin
84 coin.center_x = random.randrange(SCREEN_WIDTH)
85 coin.center_y = random.randrange(SCREEN_HEIGHT)
86
87 # Add the coin to the lists
88 self.coin_list.append(coin)
89
90 def on_draw(self):
91 """
92 Render the screen.
93 """
94
95 # This command has to happen before we start drawing
96 arcade.start_render()
97
98 # Draw the background texture
99 arcade.draw_lrwh_rectangle_textured(0, 0,
100 SCREEN_WIDTH, SCREEN_HEIGHT,
101 self.background)
102
103 # Draw all the sprites.
104 self.coin_list.draw()
105 self.player_list.draw()
106
107 # Render the text
108 arcade.draw_text(f"Score: {self.score}", 10, 20, arcade.color.WHITE, 14)
109
110 def on_mouse_motion(self, x, y, dx, dy):
111 """
112 Called whenever the mouse moves.
113 """
114 self.player_sprite.center_x = x
115 self.player_sprite.center_y = y
116
117 def on_update(self, delta_time):
118 """ Movement and game logic """
119
120 # Call update on the coin sprites (The sprites don't do much in this
121 # example though.)
122 self.coin_list.update()
123
124 # Generate a list of all sprites that collided with the player.
125 hit_list = arcade.check_for_collision_with_list(self.player_sprite, self.coin_list)
126
127 # Loop through each colliding sprite, remove it, and add to the score.
128 for coin in hit_list:
129 coin.remove_from_sprite_lists()
130 self.score += 1
131
132
133def main():
134 """ Main method """
135 window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
136 window.setup()
137 arcade.run()
138
139
140if __name__ == "__main__":
141 main()