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#!/usr/bin/python
import math
import pygame
from gi.repository import Gtk
BALL_COLOR = 255, 255, 255
GROUND_COLOR = 0, 0, 0
BACKGROUND_COLOR = 180, 180, 180
BALL_SIZE = 20
class Ball(object):
def __init__(self, initial_x, initial_y):
self._x = initial_x
self._y = initial_y
# FIXME, this should be modified by the accelerometer
self._vx = 5
self._vy = 2
def get_position(self):
return self._x, self._y
def set_position(self, new_x, new_y):
self._x = new_x
self._y = new_y
def update(self):
self._x += self._vx
self._y += self._vy
def draw(self, surface):
pygame.draw.circle(surface, BALL_COLOR, (self._x, self._y), BALL_SIZE)
class Level(object):
def __init__(self, hardness):
self._hardness = hardness
self._rects = []
self._ball_start = None
self._ball_end = None
self.calculate_level()
def calculate_level(self):
rect = pygame.Rect((10, 10), (250, 180))
self._rects.append(rect)
self._ball_start = 100, 100
self._ball_end = 200, 150
def get_ball_start(self):
return self._ball_start
def is_on_hole(self, ball_position):
"""Test if the ball is on the hole."""
distance_x = ball_position[0] - self._ball_end[0]
distance_y = ball_position[1] - self._ball_end[1]
distance = math.hypot(distance_x, distance_y)
return distance < BALL_SIZE / 2
def is_on_ground(self, ball_position):
"""Test if the ball is on the ground."""
for rect in self._rects:
if rect.collidepoint(ball_position):
return True
return False
def draw(self, surface):
# draw ground:
for rect in self._rects:
pygame.draw.rect(surface, GROUND_COLOR, rect)
# draw hole:
pygame.draw.circle(surface, BALL_COLOR, self._ball_end, BALL_SIZE, 2)
class TiltGame(object):
def __init__(self):
# Set up a clock for managing the frame rate.
self.clock = pygame.time.Clock()
self._level = None
self._ball = None
self._running = False
self._paused = False
self._screen = None
def setup(self):
self._level = Level(0.5)
ball_x, ball_y = self._level.get_ball_start()
self._ball = Ball(ball_x, ball_y)
def set_paused(self, paused):
self._paused = paused
# Called to save the state of the game to the Journal.
def write_file(self, file_path):
pass
# Called to load the state of the game from the Journal.
def read_file(self, file_path):
pass
# The main game loop.
def run(self):
self._screen = pygame.display.get_surface()
self.setup()
self._running = True
while self._running:
# Pump GTK messages.
while Gtk.events_pending():
Gtk.main_iteration()
# Pump PyGame messages.
for event in pygame.event.get():
if event.type == pygame.QUIT:
return
elif event.type == pygame.VIDEORESIZE:
pygame.display.set_mode(event.size, pygame.RESIZABLE)
# Move the ball
if not self._paused:
if self._level.is_on_hole(self._ball.get_position()):
# Success! Restart
self._ball.set_position(*self._level.get_ball_start())
if self._level.is_on_ground(self._ball.get_position()):
self._ball.update()
else:
# Fail! Restart
self._ball.set_position(*self._level.get_ball_start())
# Clear Display
self._screen.fill(BACKGROUND_COLOR)
# Draw the level
self._level.draw(self._screen)
# Draw the ball
self._ball.draw(self._screen)
# Flip Display
pygame.display.flip()
# Try to stay at 30 FPS
self.clock.tick(30)
# This function is called when the game is run directly from the command line:
# ./game.py
def main():
pygame.init()
pygame.display.set_mode((0, 0), pygame.RESIZABLE)
game = TiltGame()
game.run()
if __name__ == '__main__':
main()
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