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i����Nt	LifeBoardcBsPeZdZed�d�Zd�Zd�Zd�Zed�Z	d�Z
RS(s�Encapsulates a Life board

    Attributes:
    X,Y : horizontal and vertical size of the board
    state : dictionary mapping (x,y) to 0 or 1

    Methods:
    display(update_board) -- If update_board is true, compute the
                             next generation.  Then display the state
                             of the board and refresh the screen.
    erase() -- clear the entire board
    makeRandom() -- fill the board randomly
    set(y,x) -- set the given cell to Live; doesn't refresh the screen
    toggle(y,x) -- change the given cell from live to dead, or vice
                   versa, and refresh the screen display

    t*cCs
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!	cCsli|_x\td|j�D]H}x?td|j�D]+}tj�dkr5|j||�q5q5WqWdS(s$Fill the board with a random patternig�?N(RR
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cCs;t||�|j|dd�|j|ddd�dS(s/Display the menu of possible keystroke commandsisAUse the cursor keys to move, and space or Enter to toggle a cell.isBE)rase the board, R)andom fill, S)tep once or C)ontinuously, Q)uitN(R6R(R4R5((s(/usr/lib64/python2.7/Demo/curses/life.pytdisplay_menu�s

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tCcis6 Hit any key to stop continuously updating the screen.i����t/RtEetQqtRrtSs(RRR7tsubwinRR0RRRR	R2tgetchtchrRR6RRtnodelayRR,tcursestKEY_UPtKEY_DOWNtKEY_LEFTt	KEY_RIGHT(	R4tstdscr_ytstdscr_xR5R>tboardtxpostypostc((s(/usr/lib64/python2.7/Demo/curses/life.pytkeyloop�sd











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