if (not zeros_move): # ... and it's the TTF's move ...
i = int(raw_input("Enter X in row __: ")) # ... prompt the TTF for the coordinates of their move.
j = int(raw_input("Enter X in col __: "))
while (i < 0 or i > 2): # If the row number is not in {0, 1, 2} ...
i = int(raw_input("Row should be between 0 and 2: ")) # ... prompt them again.
while (j < 0 or j > 2): # Do the same for column number.
j = int(raw_input("Col should be between 0 and 2: "))
Grid[i][j] = 'X' # Put an 'X' on the grid, once you have valid coordinates.
print("\nYou: ") # Tell the TicTacFoe that the next grid they see will show their move.
else: # ... otherwise if it's our (Zeros') move ...
Grid[0][0] = '0' # ... play a default move of putting a '0' in the first row, first column.
print("\nEarth's Mightiest Zeros: ") # This default move is a significant optimization, will be covered in the document.
state = Gamestate(Grid, not zeros_move) # Now, make a Gamestate object that represents the current grid, and call it 'state'.
state.make_states() # Generate the game's tree.
state.calculate_value() # Compute each state's value.
first_move = False # And it's no longer the first move, hence.
else: # For every move after the first one ...
if (not zeros_move): # ... if it's the TTF's move ...
i = int(raw_input("Enter X in row __: ")) # ... prompt the TTF for the coordinates of their move.
j = int(raw_input("Enter X in col __: "))
while (i < 0 or i > 2): # If the row number is not in {0, 1, 2} ...
i = int(raw_input("Row should be between 0 and 2: ")) # ... prompt them again.
while (j < 0 or j > 2): # Do the same for column number.
j = int(raw_input("Col should be between 0 and 2: "))
while (isCross(state.grid, i, j) or isZero(state.grid, i, j)): # Now since this is not the first move, the board may not be empty, and ...
print "Please enter unoccupied coordinates" # ... we need to check that the coordinates TTF is trying to play on are empty.
i = int(raw_input("Enter X in row __: ")) # Prompt them again.
j = int(raw_input("Enter X in col __: "))
from Gamestate import *
Grid = [[' ', ' ', ' '],
[' ', ' ', ' '],
[' ', ' ', ' ']]
state = Gamestate(Grid, True, 1)
state.make_states()
state.calculate_value()
for st in state.states:
printToConsole(st.grid),
print("Value: "),
print(st.value)
