1"""
2Sprite Bullets
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_bullets
10"""
11from __future__ import annotations
12
13import random
14import arcade
15
16SPRITE_SCALING_PLAYER = 0.5
17SPRITE_SCALING_COIN = 0.2
18SPRITE_SCALING_LASER = 0.8
19COIN_COUNT = 50
20
21SCREEN_WIDTH = 800
22SCREEN_HEIGHT = 600
23SCREEN_TITLE = "Sprites and Bullets Example"
24
25BULLET_SPEED = 5
26
27
28class MyGame(arcade.Window):
29 """ Main application class. """
30
31 def __init__(self):
32 """ Initializer """
33 # Call the parent class initializer
34 super().__init__(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
35
36 # Variables that will hold sprite lists
37 self.player_list = None
38 self.coin_list = None
39 self.bullet_list = None
40
41 # Set up the player info
42 self.player_sprite = None
43 self.score = 0
44
45 # Don't show the mouse cursor
46 self.set_mouse_visible(False)
47
48 # Load sounds. Sounds from kenney.nl
49 self.gun_sound = arcade.load_sound(":resources:sounds/hurt5.wav")
50 self.hit_sound = arcade.load_sound(":resources:sounds/hit5.wav")
51
52 self.background_color = arcade.color.AMAZON
53
54 def setup(self):
55
56 """ Set up the game and initialize the variables. """
57
58 # Sprite lists
59 self.player_list = arcade.SpriteList()
60 self.coin_list = arcade.SpriteList()
61 self.bullet_list = arcade.SpriteList()
62
63 # Set up the player
64 self.score = 0
65
66 # Image from kenney.nl
67 self.player_sprite = arcade.Sprite(
68 ":resources:images/animated_characters/female_person/femalePerson_idle.png",
69 scale=SPRITE_SCALING_PLAYER)
70 self.player_sprite.center_x = 50
71 self.player_sprite.center_y = 70
72 self.player_list.append(self.player_sprite)
73
74 # Create the coins
75 for i in range(COIN_COUNT):
76
77 # Create the coin instance
78 # Coin image from kenney.nl
79 coin = arcade.Sprite(":resources:images/items/coinGold.png", scale=SPRITE_SCALING_COIN)
80
81 # Position the coin
82 coin.center_x = random.randrange(SCREEN_WIDTH)
83 coin.center_y = random.randrange(120, SCREEN_HEIGHT)
84
85 # Add the coin to the lists
86 self.coin_list.append(coin)
87
88 # Set the background color
89 self.background_color = arcade.color.AMAZON
90
91 def on_draw(self):
92 """
93 Render the screen.
94 """
95
96 # This command has to happen before we start drawing
97 self.clear()
98
99 # Draw all the sprites.
100 self.coin_list.draw()
101 self.bullet_list.draw()
102 self.player_list.draw()
103
104 # Render the text
105 arcade.draw_text(f"Score: {self.score}", 10, 20, arcade.color.WHITE, 14)
106
107 def on_mouse_motion(self, x, y, dx, dy):
108 """
109 Called whenever the mouse moves.
110 """
111 self.player_sprite.center_x = x
112
113 def on_mouse_press(self, x, y, button, modifiers):
114 """
115 Called whenever the mouse button is clicked.
116 """
117 # Gunshot sound
118 arcade.play_sound(self.gun_sound)
119 # Create a bullet
120 bullet = arcade.Sprite(":resources:images/space_shooter/laserBlue01.png", scale=SPRITE_SCALING_LASER)
121
122 # The image points to the right, and we want it to point up. So
123 # rotate it.
124 bullet.angle = -90
125
126 # Give the bullet a speed
127 bullet.change_y = BULLET_SPEED
128
129 # Position the bullet
130 bullet.center_x = self.player_sprite.center_x
131 bullet.bottom = self.player_sprite.top
132
133 # Add the bullet to the appropriate lists
134 self.bullet_list.append(bullet)
135
136 def on_update(self, delta_time):
137 """ Movement and game logic """
138
139 # Call update on bullet sprites
140 self.bullet_list.update()
141
142 # Loop through each bullet
143 for bullet in self.bullet_list:
144
145 # Check this bullet to see if it hit a coin
146 hit_list = arcade.check_for_collision_with_list(bullet, self.coin_list)
147
148 # If it did, get rid of the bullet
149 if len(hit_list) > 0:
150 bullet.remove_from_sprite_lists()
151
152 # For every coin we hit, add to the score and remove the coin
153 for coin in hit_list:
154 coin.remove_from_sprite_lists()
155 self.score += 1
156
157 # Hit Sound
158 arcade.play_sound(self.hit_sound)
159
160 # If the bullet flies off-screen, remove it.
161 if bullet.bottom > SCREEN_HEIGHT:
162 bullet.remove_from_sprite_lists()
163
164
165def main():
166 window = MyGame()
167 window.setup()
168 arcade.run()
169
170
171if __name__ == "__main__":
172 main()