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144 | """
Sprite Simple Bouncing
Simple program to show how to bounce items.
This only works for straight vertical and horizontal angles.
Artwork from https://kenney.nl
If Python and Arcade are installed, this example can be run from the command line with:
python -m arcade.examples.sprite_bouncing_coins
"""
import arcade
import random
SPRITE_SCALING = 0.5
SCREEN_WIDTH = 832
SCREEN_HEIGHT = 632
SCREEN_TITLE = "Sprite Bouncing Coins"
MOVEMENT_SPEED = 5
class MyGame(arcade.Window):
""" Main application class. """
def __init__(self, width, height, title):
"""
Initializer
"""
super().__init__(width, height, title)
# Sprite lists
self.coin_list = None
self.wall_list = None
def setup(self):
""" Set up the game and initialize the variables. """
# Sprite lists
self.wall_list = arcade.SpriteList()
self.coin_list = arcade.SpriteList()
# -- Set up the walls
# Create horizontal rows of boxes
for x in range(32, SCREEN_WIDTH, 64):
# Bottom edge
wall = arcade.Sprite(":resources:images/tiles/boxCrate_double.png", SPRITE_SCALING)
wall.center_x = x
wall.center_y = 32
self.wall_list.append(wall)
# Top edge
wall = arcade.Sprite(":resources:images/tiles/boxCrate_double.png", SPRITE_SCALING)
wall.center_x = x
wall.center_y = SCREEN_HEIGHT - 32
self.wall_list.append(wall)
# Create vertical columns of boxes
for y in range(96, SCREEN_HEIGHT, 64):
# Left
wall = arcade.Sprite(":resources:images/tiles/boxCrate_double.png", SPRITE_SCALING)
wall.center_x = 32
wall.center_y = y
self.wall_list.append(wall)
# Right
wall = arcade.Sprite(":resources:images/tiles/boxCrate_double.png", SPRITE_SCALING)
wall.center_x = SCREEN_WIDTH - 32
wall.center_y = y
self.wall_list.append(wall)
# Create boxes in the middle
for x in range(128, SCREEN_WIDTH, 196):
for y in range(128, SCREEN_HEIGHT, 196):
wall = arcade.Sprite(":resources:images/tiles/boxCrate_double.png", SPRITE_SCALING)
wall.center_x = x
wall.center_y = y
# wall.angle = 45
self.wall_list.append(wall)
# Create coins
for i in range(10):
coin = arcade.Sprite(":resources:images/items/coinGold.png", 0.25)
coin.center_x = random.randrange(100, 700)
coin.center_y = random.randrange(100, 500)
while coin.change_x == 0 and coin.change_y == 0:
coin.change_x = random.randrange(-4, 5)
coin.change_y = random.randrange(-4, 5)
self.coin_list.append(coin)
# 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.wall_list.draw()
self.coin_list.draw()
def on_update(self, delta_time):
""" Movement and game logic """
for coin in self.coin_list:
coin.center_x += coin.change_x
walls_hit = arcade.check_for_collision_with_list(coin, self.wall_list)
for wall in walls_hit:
if coin.change_x > 0:
coin.right = wall.left
elif coin.change_x < 0:
coin.left = wall.right
if len(walls_hit) > 0:
coin.change_x *= -1
coin.center_y += coin.change_y
walls_hit = arcade.check_for_collision_with_list(coin, self.wall_list)
for wall in walls_hit:
if coin.change_y > 0:
coin.top = wall.bottom
elif coin.change_y < 0:
coin.bottom = wall.top
if len(walls_hit) > 0:
coin.change_y *= -1
def main():
""" Main function """
window = MyGame(SCREEN_WIDTH, SCREEN_HEIGHT, SCREEN_TITLE)
window.setup()
arcade.run()
if __name__ == "__main__":
main()
|