# Tk_demo_board.py

# Tk_demo_board.py

import random
from Tkinter import *

def mousePressed(event):
    canvas = event.widget.canvas
    board = canvas.data["board"]
    cell = getCell(canvas, event.x, event.y)
    if (cell != None):
        (row, col) = cell
        if (board[row][col] != 0):
            print "*** already occupied ***"
        else:
            board[row][col] = canvas.data["currentPlayer"]
            switchPlayers()
    redrawAll()

def getCell(canvas, x, y):
    board = canvas.data["board"]
    rows = len(board)
    cols = len(board[0])
    for row in range(rows):
        for col in range(cols):
            (left, top, right, bottom) = cellBounds(canvas, row, col)
            if ((left <= x) and (x <= right) and
                (top <= y) and (y <= bottom)):
                return (row, col)
    return None

def keyPressed(event):
    canvas = event.widget.canvas
    redrawAll()

def gameOver():
    canvas.data["isGameOver"] = True

def timerFired():
    pass

def redrawAll():
    canvas.delete(ALL)
    drawBoard()
    if (canvas.data["isGameOver"] == True):
        cx = canvas.data["canvasWidth"]/2
        cy = canvas.data["canvasHeight"]/2
        canvas.create_text(cx, cy, text="Game Over!", font=("Helvetica", 32, "bold"))

def drawBoard():
    board = canvas.data["board"]
    rows = len(board)
    cols = len(board[0])
    for row in range(rows):
        for col in range(cols):
            drawCell(canvas, board, row, col)

def cellBounds(canvas, row, col):
    margin = canvas.data["margin"]
    cellSize = canvas.data["cellSize"]
    left = margin + col * cellSize
    right = left + cellSize
    top = margin + row * cellSize
    bottom = top + cellSize
    return (left, top, right, bottom)

def drawCell(canvas, board, row, col):
    (left, top, right, bottom) = cellBounds(canvas, row, col)
    canvas.create_rectangle(left, top, right, bottom, fill="white")
    if (board[row][col] > 0):
        if (board[row][col] == 1):
            color = "red"
        else:
            color = "green"
        canvas.create_oval(left+3, top+3, right-3, bottom-3, width=0, fill=color)

def loadBoard():
    rows = canvas.data["rows"]
    cols = canvas.data["cols"]
    board = [ ]
    for row in range(rows): board += [[0] * cols]
    canvas.data["board"] = board

def printInstructions():
    print "Demo Started..."

def switchPlayers():
    player = canvas.data["currentPlayer"]
    if (player == 1):
        canvas.data["currentPlayer"] = 2
    else:
        canvas.data["currentPlayer"] = 1

def init():
    printInstructions()
    loadBoard()
    canvas.data["inDebugMode"] = False
    canvas.data["isGameOver"] = False
    canvas.data["currentPlayer"] = 1
    redrawAll()

########### copy-paste below here ###########

def run(rows, cols):
    canvas.data["rows"] = rows
    canvas.data["cols"] = cols
    # Set up canvas data and call init

    init()
    # set up events
    root.bind("<Button-1>", mousePressed)
    root.bind("<Key>", keyPressed)
    timerFired()
    # and launch the app
    root.mainloop()  # This call BLOCKS (so your program waits until you close the window!)

# create the root and the canvas
root = Tk()
root.resizable(width=0, height=0)
# Store canvas in root and in canvas itself for callbacks
margin = 5
cellSize = 30
rows, cols = 8, 16
canvasWidth = 2*margin + cols*cellSize
canvasHeight = 2*margin + rows*cellSize
canvas = Canvas(root, width=canvasWidth, height=canvasHeight)
root.canvas = canvas.canvas = canvas
canvas.data = {}
canvas.data["margin"] = margin
canvas.data["cellSize"] = cellSize
canvas.data["canvasWidth"] = canvasWidth
canvas.data["canvasHeight"] = canvasHeight
canvas.data["rows"] = rows
canvas.data["cols"] = cols
canvas.pack()
run(8, 16)