5.3: Second Verse, Same as the First

Much of the code in Wormy is similar to the previous games we’ve looked at, especially the constants being set at the start of the code.

# Slide Puzzle
# By Al Sweigart al@inventwithpython.com
# http://inventwithpython.com/pygame
# Released under a "Simplified BSD" license

import pygame, sys, random
from pygame.locals import *

# Create the constants (go ahead and experiment with different values)
BOARDWIDTH = 4  # number of columns in the board
BOARDHEIGHT = 4 # number of rows in the board
TILESIZE = 80
WINDOWWIDTH = 640
WINDOWHEIGHT = 480
FPS = 30
BLANK = None

#                 R    G    B
BLACK =         (  0,   0,   0)
WHITE =         (255, 255, 255)
BRIGHTBLUE =    (  0,  50, 255)
DARKTURQUOISE = (  3,  54,  73)
GREEN =         (  0, 204,   0)

BGCOLOR = DARKTURQUOISE
TILECOLOR = GREEN
TEXTCOLOR = WHITE
BORDERCOLOR = BRIGHTBLUE
BASICFONTSIZE = 20

BUTTONCOLOR = WHITE
BUTTONTEXTCOLOR = BLACK
MESSAGECOLOR = WHITE

XMARGIN = int((WINDOWWIDTH - (TILESIZE * BOARDWIDTH + (BOARDWIDTH - 1))) / 2)
YMARGIN = int((WINDOWHEIGHT - (TILESIZE * BOARDHEIGHT + (BOARDHEIGHT - 1))) / 2)

UP = 'up'
DOWN = 'down'
LEFT = 'left'
RIGHT = 'right'

This code at the top of the program just handles all the basic importing of modules and creating constants. This is just like the beginning of the Memory Puzzle game from the last chapter.

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