#
#  u t i l . p y
#
import sys, string, boards, copy

def setBoard(n) :
	global board
	board = copy.copy(boards.boards[n])

def getSpot (row,col) :
	'return board value ("_","|"," ") for row,col'
	try     : return board[row][col]
	except  : return ' '

def setSpot (row,col,newchar) :
	'update board value at row,col with newchar'
	try :
		l = board[row]
		l = l[:col]+newchar+l[col+1:]
		board[row] = l
	except : pass

def writeBoard() :
	'write entire board to the screen'
	global board
	sys.stdout.write('\033[1;1H\033[J') # clear screen
	for row in range(len(board)) :
		writeScreen(row,0,board[row])

def writeScreen(row,col,char) :
	'write char to screen at row,col'
	sys.stdout.write('\033[%d;%dH%s' % (row+1,col+1,char))
	sys.stdout.flush()