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#! /usr/bin/env python
#
# demoiselle2.py
# This is a modified version of demoiselle.py that will be run
# by DemoiselleActivity.py using SugarGame.
# Copyright (C) 2010 James D. Simmons
# Adapted from code in the article "Rapid Game Development In
# Python" by Richard Jones.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
import pygame
import gtk
import math
import sys
class Demoiselle:
"This is a simple demonstration of using PyGame \
sprites and collision detection."
def __init__(self):
self.clock = pygame.time.Clock()
self.running = True
self.background = pygame.image.load('sky.jpg')
self.score = 99
def get_score(self):
return self.score
def set_score(self, score):
self.score = score
def run(self):
"This method processes PyGame messages"
screen = pygame.display.get_surface()
screen.blit(self.background, (0, 0))
gliders = [
GliderSprite((200, 200)),
GliderSprite((800, 200)),
GliderSprite((200, 600)),
GliderSprite((800, 600)),
]
glider_group = pygame.sprite.RenderPlain(gliders)
rect = screen.get_rect()
airplane = AirplaneSprite('demoiselle.png', rect.center)
airplane_sprite = pygame.sprite.RenderPlain(airplane)
while self.running:
self.clock.tick(30)
# Pump GTK messages.
while gtk.events_pending():
gtk.main_iteration()
# Pump PyGame messages.
for event in pygame.event.get():
if event.type == pygame.QUIT:
self.running = False
return
elif event.type == pygame.VIDEORESIZE:
pygame.display.set_mode(event.size, pygame.RESIZABLE)
screen.blit(self.background, (0, 0))
if not hasattr(event, 'key'):
continue
down = event.type == pygame.KEYDOWN
if event.key == pygame.K_DOWN or \
event.key == pygame.K_KP2:
airplane.joystick_back = down * 5
elif event.key == pygame.K_UP or \
event.key == pygame.K_KP8:
airplane.joystick_forward = down * -5
elif event.key == pygame.K_EQUALS or \
event.key == pygame.K_KP_PLUS or \
event.key == pygame.K_KP9:
airplane.throttle_up = down * 2
elif event.key == pygame.K_MINUS or \
event.key == pygame.K_KP_MINUS or \
event.key == pygame.K_KP3:
airplane.throttle_down = down * -2
glider_group.clear(screen, self.background)
airplane_sprite.clear(screen, self.background)
collisions = pygame.sprite.spritecollide(airplane, \
glider_group, False)
glider_group.update(collisions)
glider_group.draw(screen)
airplane_sprite.update()
airplane_sprite.draw(screen)
pygame.display.flip()
class AirplaneSprite(pygame.sprite.Sprite):
"This class represents an airplane, the Demoiselle \
created by Alberto Santos-Dumont"
MAX_FORWARD_SPEED = 10
MIN_FORWARD_SPEED = 1
ACCELERATION = 2
TURN_SPEED = 5
def __init__(self, image, position):
pygame.sprite.Sprite.__init__(self)
self.src_image = pygame.image.load(image)
self.rect = pygame.Rect(self.src_image.get_rect())
self.position = position
self.rect.center = self.position
self.speed = 1
self.direction = 0
self.joystick_back = self.joystick_forward = \
self.throttle_down = self.throttle_up = 0
def update(self):
"This method redraws the airplane in response\
to events."
self.speed += (self.throttle_up + self.throttle_down)
if self.speed > self.MAX_FORWARD_SPEED:
self.speed = self.MAX_FORWARD_SPEED
if self.speed < self.MIN_FORWARD_SPEED:
self.speed = self.MIN_FORWARD_SPEED
self.direction += (self.joystick_forward + self.joystick_back)
x_coord, y_coord = self.position
rad = self.direction * math.pi / 180
x_coord += -self.speed * math.cos(rad)
y_coord += -self.speed * math.sin(rad)
screen = pygame.display.get_surface()
if y_coord < 0:
y_coord = screen.get_height()
if x_coord < 0:
x_coord = screen.get_width()
if x_coord > screen.get_width():
x_coord = 0
if y_coord > screen.get_height():
y_coord = 0
self.position = (x_coord, y_coord)
self.image = pygame.transform.rotate(self.src_image, -self.direction)
self.rect = self.image.get_rect()
self.rect.center = self.position
class GliderSprite(pygame.sprite.Sprite):
"This class represents an individual hang glider as developed\
by Otto Lilienthal."
def __init__(self, position):
pygame.sprite.Sprite.__init__(self)
self.normal = pygame.image.load('glider_normal.png')
self.rect = pygame.Rect(self.normal.get_rect())
self.rect.center = position
self.image = self.normal
self.hit = pygame.image.load('glider_hit.png')
def update(self, hit_list):
"This method redraws the glider when it collides\
with the airplane and when it is no longer \
colliding with the airplane."
if self in hit_list:
self.image = self.hit
else:
self.image = self.normal
def main():
"This function is called when the game is run from the command line"
pygame.init()
pygame.display.set_mode((0, 0), pygame.RESIZABLE)
game = Demoiselle()
game.run()
sys.exit(0)
if __name__ == '__main__':
main()
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