c# convert pdf to jpg: Change security settings pdf SDK Library project wpf .net asp.net UWP makinggames9-part668

Chapter 3

–

Memory Puzzle

for bb in range(10):

for ee in range(7):

oo, ddd = aa(bb, ee)

aaa = pygame.Rect(oo, ddd, 40, 40)

if aaa.collidepoint(x, y):

return (bb, ee)

return (None, None)

def w(ss, tt, bb, ee):

oo, ddd = aa(bb, ee)

if ss == 'a':

pygame.draw.circle(b, tt, (oo + 20, ddd + 20), 15)

pygame.draw.circle(b, (60, 60, 100), (oo + 20, ddd + 20), 5)

elif ss == 'b':

pygame.draw.rect(b, tt, (oo + 10, ddd + 10, 20, 20))

elif ss == 'c':

pygame.draw.polygon(b, tt, ((oo + 20, ddd), (oo + 40 - 1, ddd + 20),

(oo + 20, ddd + 40 - 1), (oo, ddd + 20)))

elif ss == 'd':

for i in range(0, 40, 4):

pygame.draw.line(b, tt, (oo, ddd + i), (oo + i, ddd))

pygame.draw.line(b, tt, (oo + i, ddd + 39), (oo + 39, ddd + i))

elif ss == 'e':

pygame.draw.ellipse(b, tt, (oo, ddd + 10, 40, 20))

def s(bbb, bb, ee):

return bbb[bb][ee][0], bbb[bb][ee][1]

def dd(bbb, boxes, gg):

for box in boxes:

oo, ddd = aa(box[0], box[1])

pygame.draw.rect(b, (60, 60, 100), (oo, ddd, 40, 40))

ss, tt = s(bbb, box[0], box[1])

w(ss, tt, box[0], box[1])

if gg > 0:

pygame.draw.rect(b, (255, 255, 255), (oo, ddd, gg, 40))

pygame.display.update()

a.tick(30)

def o(bbb, cc):

for gg in range(40, (-8) - 1, -8):

dd(bbb, cc, gg)

def p(bbb, ff):

for gg in range(0, 48, 8):

dd(bbb, ff, gg)

def f(bbb, pp):

for bb in range(10):

for ee in range(7):

oo, ddd = aa(bb, ee)

if not pp[bb][ee]:

pygame.draw.rect(b, (255, 255, 255), (oo, ddd, 40, 40))

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Email questions to the author: al@inventwithpython.com

else:

ss, tt = s(bbb, bb, ee)

w(ss, tt, bb, ee)

def n(bb, ee):

oo, ddd = aa(bb, ee)

pygame.draw.rect(b, (0, 0, 255), (oo - 5, ddd - 5, 50, 50), 4)

def g(bbb):

mm = d(False)

boxes = []

for x in range(10):

for y in range(7):

boxes.append( (x, y) )

random.shuffle(boxes)

kk = t(8, boxes)

f(bbb, mm)

for nn in kk:

o(bbb, nn)

p(bbb, nn)

def jj(bbb):

mm = d(True)

tt1 = (100, 100, 100)

tt2 = (60, 60, 100)

for i in range(13):

tt1, tt2 = tt2, tt1

b.fill(tt1)

f(bbb, mm)

pygame.display.update()

pygame.time.wait(300)

def ii(hh):

for i in hh:

if False in i:

return False

return True

if __name__ == '__main__':

hhh()

Never write code like this. If you program like this while facing the mirror in a bathroom with the

lights turned off, the ghost of Ada Lovelace will come out of the mirror and throw you into the

jaws of a Jacquard loom.

Summary, and a Hacking Suggestion

This chapter covers the entire explanation of how the Memory Puzzle program works. Read over

the chapter and the source code again to understand it better. Many of the other game programs in

this book make use of the same programming concepts (like nested

for

loops, syntactic sugar,

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Chapter 3

–

Memory Puzzle

and different coordinate systems in the same program) so they won’t be explained again to keep

this book short.

One idea to try out to understand how the code works is to intentionally break it by commenting

out random lines. Doing this to some of the lines will probably cause a syntactic error that will

prevent the script from running at all. But commenting out other lines will result in weird bugs

and other cool effects. Try doing this and then figure out why a program has the bugs it does.

This is also the first step in being able to add your own secret cheats or hacks to the program. By

breaking the program from what it normally does, you can learn how to change it to do something

neat effect (like secretly giving you hints on how to solve the puzzle). Feel free to experiment.

You can always save a copy of the unchanged source code in a different file if you want to play

the regular game again.

In fact, if you’d like some practice fixing bugs, there are several versions of this game’s source

code that have small bugs in them. You can download these buggy versions from

http://invpy.com/buggy/memorypuzzle. Try running the program to figure out what the bug is,

and why the program is acting that way.

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Chapter 4

–

Slide Puzzle

HAPTER

–

LIDE

UZZLE

How to Play Slide Puzzle

The board is a 4x4 grid with fifteen tiles (numbered 1 through 15 going left to right) and one

blank space. The tiles start out in random positions, and the player must slide tiles around until

the tiles are back in their original order.

Source Code to Slide Puzzle

This source code can be downloaded from http://invpy.com/slidepuzzle.py. If you get any error

messages, look at the line number that is mentioned in the error message and check your code for

any typos. You can also copy and paste your code into the web form at

http://invpy.com/diff/slidepuzzle to see if the differences between your code and the code in the

book.

1. # Slide Puzzle

2. # By Al Sweigart al@inventwithpython.com

3. # http://inventwithpython.com/pygame

4. # Creative Commons BY-NC-SA 3.0 US

6. import pygame, sys, random

7. from pygame.locals import *

9. # Create the constants (go ahead and experiment with different values)

10. BOARDWIDTH = 4 # number of columns in the board

11. BOARDHEIGHT = 4 # number of rows in the board

12. TILESIZE = 80

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13. WINDOWWIDTH = 640

14. WINDOWHEIGHT = 480

15. FPS = 30

16. BLANK = None

17.

18. # R G B

19. BLACK = ( 0, 0, 0)

20. WHITE = (255, 255, 255)

21. BRIGHTBLUE = ( 0, 50, 255)

22. DARKTURQUOISE = ( 3, 54, 73)

23. GREEN = ( 0, 204, 0)

24.

25. BGCOLOR = DARKTURQUOISE

26. TILECOLOR = GREEN

27. TEXTCOLOR = WHITE

28. BORDERCOLOR = BRIGHTBLUE

29. BASICFONTSIZE = 20

30.

31. BUTTONCOLOR = WHITE

32. BUTTONTEXTCOLOR = BLACK

33. MESSAGECOLOR = WHITE

34.

35. XMARGIN = int((WINDOWWIDTH - (TILESIZE * BOARDWIDTH + (BOARDWIDTH - 1))) /

36. YMARGIN = int((WINDOWHEIGHT - (TILESIZE * BOARDHEIGHT + (BOARDHEIGHT -

1))) / 2)

37.

38. UP = 'up'

39. DOWN = 'down'

40. LEFT = 'left'

41. RIGHT = 'right'

42.

43. def main():

44. global FPSCLOCK, DISPLAYSURF, BASICFONT, RESET_SURF, RESET_RECT,

NEW_SURF, NEW_RECT, SOLVE_SURF, SOLVE_RECT

45.

46. pygame.init()

47. FPSCLOCK = pygame.time.Clock()

48. DISPLAYSURF = pygame.display.set_mode((WINDOWWIDTH, WINDOWHEIGHT))

49. pygame.display.set_caption('Slide Puzzle')

50. BASICFONT = pygame.font.Font('freesansbold.ttf', BASICFONTSIZE)

51.

52. # Store the option buttons and their rectangles in OPTIONS.

53. RESET_SURF, RESET_RECT = makeText('Reset', TEXTCOLOR, TILECOLOR,

WINDOWWIDTH - 120, WINDOWHEIGHT - 90)

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Chapter 4

–

Slide Puzzle

54. NEW_SURF, NEW_RECT = makeText('New Game', TEXTCOLOR, TILECOLOR,

WINDOWWIDTH - 120, WINDOWHEIGHT - 60)

55. SOLVE_SURF, SOLVE_RECT = makeText('Solve', TEXTCOLOR, TILECOLOR,

WINDOWWIDTH - 120, WINDOWHEIGHT - 30)

56.

57. mainBoard, solutionSeq = generateNewPuzzle(80)

58. SOLVEDBOARD = getStartingBoard() # a solved board is the same as the

board in a start state.

59. allMoves = [] # list of moves made from the solved configuration

60.

61. while True: # main game loop

62. slideTo = None # the direction, if any, a tile should slide

63. msg = '' # contains the message to show in the upper left corner.

64. if mainBoard == SOLVEDBOARD:

65. msg = 'Solved!'

66.

67. drawBoard(mainBoard, msg)

68.

69. checkForQuit()

70. for event in pygame.event.get(): # event handling loop

71. if event.type == MOUSEBUTTONUP:

72. spotx, spoty = getSpotClicked(mainBoard, event.pos[0],

event.pos[1])

73.

74. if (spotx, spoty) == (None, None):

75. # check if the user clicked on an option button

76. if RESET_RECT.collidepoint(event.pos):

77. resetAnimation(mainBoard, allMoves) # clicked on

Reset button

78. allMoves = []

79. elif NEW_RECT.collidepoint(event.pos):

80. mainBoard, solutionSeq = generateNewPuzzle(80) #

clicked on New Game button

81. allMoves = []

82. elif SOLVE_RECT.collidepoint(event.pos):

83. resetAnimation(mainBoard, solutionSeq + allMoves)

# clicked on Solve button

84. allMoves = []

85. else:

86. # check if the clicked tile was next to the blank spot

87.

88. blankx, blanky = getBlankPosition(mainBoard)

89. if spotx == blankx + 1 and spoty == blanky:

90. slideTo = LEFT

91. elif spotx == blankx - 1 and spoty == blanky:

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92. slideTo = RIGHT

93. elif spotx == blankx and spoty == blanky + 1:

94. slideTo = UP

95. elif spotx == blankx and spoty == blanky - 1:

96. slideTo = DOWN

97.

98. elif event.type == KEYUP:

99. # check if the user pressed a key to slide a tile

100. if event.key in (K_LEFT, K_a) and isValidMove(mainBoard,

LEFT):

101. slideTo = LEFT

102. elif event.key in (K_RIGHT, K_d) and

isValidMove(mainBoard, RIGHT):

103. slideTo = RIGHT

104. elif event.key in (K_UP, K_w) and isValidMove(mainBoard,

UP):

105. slideTo = UP

106. elif event.key in (K_DOWN, K_s) and isValidMove(mainBoard,

DOWN):

107. slideTo = DOWN

108.

109. if slideTo:

110. slideAnimation(mainBoard, slideTo, 'Click tile or press arrow

keys to slide.', 8) # show slide on screen

111. makeMove(mainBoard, slideTo)

112. allMoves.append(slideTo) # record the slide

113. pygame.display.update()

114. FPSCLOCK.tick(FPS)

115.

116.

117. def terminate():

118. pygame.quit()

119. sys.exit()

120.

121.

122. def checkForQuit():

123. for event in pygame.event.get(QUIT): # get all the QUIT events

124. terminate() # terminate if any QUIT events are present

125. for event in pygame.event.get(KEYUP): # get all the KEYUP events

126. if event.key == K_ESCAPE:

127. terminate() # terminate if the KEYUP event was for the Esc key

128. pygame.event.post(event) # put the other KEYUP event objects back

129.

130.

131. def getStartingBoard():

132. # Return a board data structure with tiles in the solved state.

Chapter 4

–

Slide Puzzle

133. # For example, if BOARDWIDTH and BOARDHEIGHT are both 3, this function

134. # returns [[1, 4, 7], [2, 5, 8], [3, 6, None]]

135. counter = 1

136. board = []

137. for x in range(BOARDWIDTH):

138. column = []

139. for y in range(BOARDHEIGHT):

140. column.append(counter)

141. counter += BOARDWIDTH

142. board.append(column)

143. counter -= BOARDWIDTH * (BOARDHEIGHT - 1) + BOARDWIDTH - 1

144.

145. board[BOARDWIDTH-1][BOARDHEIGHT-1] = None

146. return board

147.

148.

149. def getBlankPosition(board):

150. # Return the x and y of board coordinates of the blank space.

151. for x in range(BOARDWIDTH)):

152. for y in range(BOARDHEIGHT):

153. if board[x][y] == None:

154. return (x, y)

155.

156.

157. def makeMove(board, move):

158. # This function does not check if the move is valid.

159. blankx, blanky = getBlankPosition(board)

160.

161. if move == UP:

162. board[blankx][blanky], board[blankx][blanky + 1] =

board[blankx][blanky + 1], board[blankx][blanky]

163. elif move == DOWN:

164. board[blankx][blanky], board[blankx][blanky - 1] =

board[blankx][blanky - 1], board[blankx][blanky]

165. elif move == LEFT:

166. board[blankx][blanky], board[blankx + 1][blanky] = board[blankx +

1][blanky], board[blankx][blanky]

167. elif move == RIGHT:

168. board[blankx][blanky], board[blankx - 1][blanky] = board[blankx -

1][blanky], board[blankx][blanky]

169.

170.

171. def isValidMove(board, move):

172. blankx, blanky = getBlankPosition(board)

173. return (move == UP and blanky != len(board[0]) - 1) or \

174. (move == DOWN and blanky != 0) or \

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175. (move == LEFT and blankx != len(board) - 1) or \

176. (move == RIGHT and blankx != 0)

177.

178.

179. def getRandomMove(board, lastMove=None):

180. # start with a full list of all four moves

181. validMoves = [UP, DOWN, LEFT, RIGHT]

182.

183. # remove moves from the list as they are disqualified

184. if lastMove == UP or not isValidMove(board, DOWN):

185. validMoves.remove(DOWN)

186. if lastMove == DOWN or not isValidMove(board, UP):

187. validMoves.remove(UP)

188. if lastMove == LEFT or not isValidMove(board, RIGHT):

189. validMoves.remove(RIGHT)

190. if lastMove == RIGHT or not isValidMove(board, LEFT):

191. validMoves.remove(LEFT)

192.

193. # return a random move from the list of remaining moves

194. return random.choice(validMoves)

195.

196.

197. def getLeftTopOfTile(tileX, tileY):

198. left = XMARGIN + (tileX * TILESIZE) + (tileX - 1)

199. top = YMARGIN + (tileY * TILESIZE) + (tileY - 1)

200. return (left, top)

201.

202.

203. def getSpotClicked(board, x, y):

204. # from the x & y pixel coordinates, get the x & y board coordinates

205. for tileX in range(len(board)):

206. for tileY in range(len(board[0])):

207. left, top = getLeftTopOfTile(tileX, tileY)

208. tileRect = pygame.Rect(left, top, TILESIZE, TILESIZE)

209. if tileRect.collidepoint(x, y):

210. return (tileX, tileY)

211. return (None, None)

212.

213.

214. def drawTile(tilex, tiley, number, adjx=0, adjy=0):

215. # draw a tile at board coordinates tilex and tiley, optionally a few

216. # pixels over (determined by adjx and adjy)

217. left, top = getLeftTopOfTile(tilex, tiley)

218. pygame.draw.rect(DISPLAYSURF, TILECOLOR, (left + adjx, top + adjy,

TILESIZE, TILESIZE))

219. textSurf = BASICFONT.render(str(number), True, TEXTCOLOR)

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