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#! /usr/bin/env python
"""
Creates a game with maze and sprites and updates game
@license: U{http://creativecommons.org/licenses/by-sa/3.0/us/}
@var game: The instance of gameMain
@var done: when game is done it will equal true
@var BASE_LIVES: the number of lives with witch a player starts
@var MAZE_SIZE: size of maze
@var MAZE_DRAW_FRAME: size of maze to be drawn
"""
from pacmanMovement import pacmanMovement
from GhostMovement import ghostMovement
from mazeSetup import mazeSetup
from questionGenerator import questionGenerator
from question import question
import random
import pygame
import sys
# GAME VARIABLES
MAZE_SIZE = 25
MAZE_DRAW_FRAME = 25
BASE_LIVES = 3
class gameMain:
def __init__(self):
"""
Constructor
"""
# everything for setting up the game
temp = 0
pygame.init()
pygame.key.set_repeat(10, 50)
# make the screen however big the maze (maze needs to 625 by 625) is
self.screen = pygame.display.set_mode((900, 700))
# if olpcgames.ACTIVITY:
# size = olpcgames.ACTIVITY.game_size
pygame.display.set_caption('PacMath')
self.screen.fill((0,0,0))
self.operation = random.sample('x+-/', 1)
self.questGen = questionGenerator( self.operation, 2, 12 )
self.lives = BASE_LIVES
self.score = 0
self.level = 1
def gameOver(self):
"""
Called to restart the game at level 1 when a player loses
"""
self.level = 1
self.lives = BASE_LIVES
self.score = 0
self.screen.fill((0,0,0))
self.operation = random.sample('x+-/', 1)
self.questGen = questionGenerator( self.operation, 2, 12 )
self.QandA.updateLives(self.screen, self.lives)
self.QandA.updateScore(self.screen, self.score)
self.QandA.updateLevel(self.screen, self.level)
self.resetQuestion()
def resetQuestion(self):
"""
Generates and uses a new question set with a new operation
"""
self.maze = mazeSetup(self.screen, MAZE_SIZE) # create an instance of the
# maze->call the constructor
self.operation = random.sample('x+-/', 1)
self.questGen = questionGenerator( self.operation, 2, 12 )
self.QandA = question(self.screen, self.questGen.getQuestionSet())
self.ghost1 = ghostMovement( 0, self.QandA.questions[0])
self.ghost2 = ghostMovement( 1, self.QandA.questions[1])
self.ghost3 = ghostMovement( 2, self.QandA.questions[2])
self.ghost4 = ghostMovement( 3, self.QandA.questions[3])
self.pacman = pacmanMovement()
self.ghosts = [ self.ghost1, self.ghost2, self.ghost3, self.ghost4 ]
self.nextQuestion()
def nextQuestion(self):
"""
Updates the game to move on to a new question, if no more are available
in the current set, this calls resetQuestion and moves the player to
the next level
"""
if self.QandA.nextQuestion():
self.wrongGhosts = pygame.sprite.Group()
self.correctGhosts = pygame.sprite.Group()
for i in range(len(self.ghosts)):
if not (i == self.QandA.getAnswerIndex() ):
self.wrongGhosts.add( self.ghosts[i] )
else:
self.correctGhosts.add( self.ghosts[i] )
else:
self.level += 1
self.resetQuestion()
def update(self, event):
"""
Updates the maze and sprites given an event
@type event: pygame.event.Event
@param event: directional key
"""
alreadyCollided = False
# anything the needs to be update in the game loop
# such as the players, screen.blit, etc.
ghostMovement.update(self.ghost1, self.screen, MAZE_SIZE, self.maze)
ghostMovement.update(self.ghost2, self.screen, MAZE_SIZE, self.maze)
ghostMovement.update(self.ghost3, self.screen, MAZE_SIZE, self.maze)
ghostMovement.update(self.ghost4, self.screen, MAZE_SIZE, self.maze)
alreadyCollided = self.checkCollisions()
pacmanEvent = pacmanMovement.update(self.pacman, self.screen, event, MAZE_SIZE, self.maze)
if not alreadyCollided:
self.checkCollisions()
if pacmanEvent == 1:
self.score += 1
if self.score == 100:
self.score = 1
self.lives += 1
self.QandA.updateLives(self.screen, self.lives)
self.QandA.updateScore(self.screen, self.score)
elif pacmanEvent == 2:
self.freeze(30)
def freeze(self, time):
"""
Frezzes all ghosts for a given amount of time
@type time: number
@param time: The number of update calls to stay still for
"""
self.ghost1.freeze(time)
self.ghost2.freeze(time)
self.ghost3.freeze(time)
self.ghost4.freeze(time)
def checkCollisions(self):
"""
Checks for and handles collisions between ghosts and the player
@rtype: boolean
@return: if there was a collision
"""
for ghost in pygame.sprite.spritecollide(self.pacman, self.correctGhosts,False):
self.nextQuestion()
self.QandA.updateLevel(self.screen, self.level)
ghost.eaten()
return True
for ghost in pygame.sprite.spritecollide(self.pacman, self.wrongGhosts, False):
self.lives -= 1
if self.lives < 0:
self.gameOver()
else:
self.QandA.updateLives(self.screen, self.lives)
self.QandA.updateScore(self.screen, self.score)
ghost.eaten()
return True
return False
def pause(self):
"""
Places the pause overlay over the game screen
"""
self.QandA.drawPaused(self.screen)
def unpause(self):
"""
Removes the pause overlay
"""
self.QandA.drawQuestion(self.screen)
def loop(self):
"""
Main game loop, handles user input and timing
"""
done = False
paused = False
self.resetQuestion()
self.QandA.updateScore(self.screen, self.score)
self.QandA.updateLives(self.screen, self.lives)
self.QandA.updateLevel(self.screen, self.level)
while done == False:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
done = True
elif event.key == pygame.K_p:
if paused:
paused = False
game.unpause()
else:
paused = True
game.pause()
pygame.time.delay(150)
# slow things down
if not paused:
pygame.time.delay(150)
game.update(event)
# once we exit the game loop we exit the game
sys.exit()
############ END GAMEMAIN CLASS, STARTING CODE HERE ###########
game = gameMain()
game.loop()
sys.exit()
# GAME LOOP
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