How to increment a foor loop within a nested if statement

Question

Im distinguishing 2 players in TicTacToe by utilising MOD, which is used upon an incrementing for loop. Im having trouble incrementing the foor loop within a nested if statement.

            for i in range (1,10):
                if i % 2==1:
                    #1st row
                    if click[0]<=250 and click[0]>=100 and click[1]<=250 and click[1]>=100:
                        current_game[0][0] = "X"
                        i+=1
                    elif click[0]<=550 and click[0]>=250 and click[1]<=250 and click[1]>=100:
                        current_game[0][1] = "X"
                        i += 1
                    elif click[0]<=700 and click[0]>=550 and click[1]<=250 and click[1]>=100:
                        current_game[0][2] = "X"
                        i += 1
                    #2nd row
                    elif click[0]<=250 and click[0]>=100 and click[1]<= 550and click[1]>=250:
                        current_game[1][0] = "X"
                        i += 1
                    elif click[0]<=550 and click[0]>=250 and click[1]<=550 and click[1]>=250:
                        current_game[1][1] = "X"
                        i += 1
                    elif click[0] <= 700 and click[0] >= 550 and click[1] <= 550 and click[1] >= 250:
                        current_game[1][2] = "X"
                        i += 1
                    #3rd row
                    elif click[0]<=250 and click[0]>=100 and click[1]<= 700and click[1]>=550:
                        current_game[2][0] = "X"
                        i += 1
                    elif click[0] <= 550 and click[0] >= 250 and click[1] <= 700 and click[1] >= 550:
                        current_game[2][1] = "X"
                        i += 1
                    elif click[0] <= 700 and click[0] >= 550 and click[1] <= 700 and click[1] >= 550:
                        current_game[2][2] = "X"
                        i += 1
                elif i % 2==0:
                    # 1st row
                    if click[0] <= 250 and click[0] >= 100 and click[1] <= 250 and click[1] >= 100:
                        current_game[0][0] = "o"
                        i += 1
                    elif click[0] <= 550 and click[0] >= 250 and click[1] <= 250 and click[1] >= 100:
                        current_game[0][1] = "o"
                        i += 1
                    elif click[0] <= 700 and click[0] >= 550 and click[1] <= 250 and click[1] >= 100:
                        current_game[0][2] = "o"
                        i += 1
                    # 2nd row
                    elif click[0] <= 250 and click[0] >= 100 and click[1] <= 550 and click[1] >= 250:
                        current_game[1][0] = "o"
                        i += 1
                    elif click[0] <= 550 and click[0] >= 250 and click[1] <= 550 and click[1] >= 250:
                        current_game[1][1] = "o"
                        i += 1
                    elif click[0] <= 700 and click[0] >= 550 and click[1] <= 550 and click[1] >= 250:
                        current_game[1][2] = "o"
                        i += 1
                    # 3rd row
                    elif click[0] <= 250 and click[0] >= 100 and click[1] <= 700 and click[1] >= 550:
                        current_game[2][0] = "o"
                        i += 1
                    elif click[0] <= 550 and click[0] >= 250 and click[1] <= 700 and click[1] >= 550:
                        current_game[2][1] = "o"
                        i += 1
                    elif click[0] <= 700 and click[0] >= 550 and click[1] <= 700 and click[1] >= 550:
                        current_game[2][2] = "o"
                        i += 1

I want to be able to increment the for loop if someone clicks on a certain co-ordinate space.

Replace for i in range (1,10): with while i<10 and add i =1 before that. — Osadhi Virochana
– Osadhi Virochana, Commented May 30, 2020 at 8:27

Gal · Accepted Answer · 2020-05-30 08:16:59Z

2

Because you use for i in range(1, 10), it doesn't matter what changes you make to i during an iteration, when it comes back to the for loop it will be assigned the next value in the range. example:

for i in range(5):
    print(i)
    i += 2

What you expect to happen is something like

>>> 0
>>> 3

but what actually will happen is this:

>>> 0
>>> 1
>>> 2
>>> 3
>>> 4

What happened here? First,i is assigned the value 0, then it was printed and increment (so now it is equal to 2). Next, i is assigned the value 1 (from the range generator), so the increment you made was overridden.

To solve this use a while loop:

i = 1
while i < 10:
    # do stuff
    i += 1

Now the value of i will not be overridden every time the loop executes

answered May 30, 2020 at 8:16

Gal

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Comments

Hasibul Islam Polok · Accepted Answer · 2020-05-31 04:47:57Z

0

The expression range(n) is evaluated just once, not on every iteration. You can't set n and expect the range(n) be changed. It doesn't allow this. Check it here for details

You have to use while loop for that.

i=0
while i<=5:
    #do your tasks
    #do your increment

answered May 31, 2020 at 4:47

Hasibul Islam Polok

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