WEBVTT 0 00:00.200 --> 00:02.900 So now we're inside Step 4. 1 00:02.900 --> 00:08.090 So we're almost there at the end now closing in on the finish line. 2 00:08.090 --> 00:11.810 So there are three TODOs in this step, 3 00:11.810 --> 00:20.330 and you'll notice that when you look at the starting file I've got the different stages of hangman as 4 00:20.330 --> 00:23.450 ASCII art for us to be able to use. 5 00:23.450 --> 00:27.440 And they go from 6, 6 00:27.440 --> 00:31.050 so which is the start of the hangman 7 00:31.050 --> 00:37.710 with no man, all the way down to 0, where the art is complete, 8 00:37.710 --> 00:41.880 and that's when the user would be in Game Over status. 9 00:41.880 --> 00:45.990 And we're going to combine that, among other things, into our game. 10 00:46.440 --> 00:50.730 So let's first take a look at a run of the solution. 11 00:50.730 --> 00:54.240 So this is what we're aiming to achieve by the end of this step. 12 00:54.240 --> 00:57.070 So we want to be able to guess a letter, 13 00:57.070 --> 01:05.080 and you'll notice that when you guess a correct letter, then the hangman art does not progress. 14 01:05.080 --> 01:11.230 So if the word is baboon I guess "b", then there is firstly art with no man. 15 01:11.230 --> 01:15.610 And then if I guess another correct letter, you'll see the art doesn't change, 16 01:15.610 --> 01:17.500 it's still just the rack. 17 01:17.500 --> 01:21.110 Now if I guess an incorrect letter, let's try F, 18 01:21.110 --> 01:25.910 you'll see that the hangman picture starts appearing. 19 01:25.910 --> 01:34.670 And if I keep guessing incorrect letters, you'll see that the person is slowly being drawn until we 20 01:34.670 --> 01:44.090 get to the very, very end where we end up with the complete image, which is image [0] in our list 21 01:44.090 --> 01:45.350 called stages. 22 01:45.350 --> 01:49.420 And at this point we get the message, "You lose." 23 01:49.420 --> 01:54.070 So that's all that we're trying to achieve in this particular step. 24 01:54.070 --> 02:01.900 And if you take a look in the TODOs, either in the description, now that this is updated, or 25 02:01.900 --> 02:08.710 in the main.py, you should be able to see the individual steps which you have to go through. 26 02:08.860 --> 02:15.860 So TODO Number 1, is to create a variable called lives to keep track of how many lives the user has 27 02:15.860 --> 02:16.370 left. 28 02:16.370 --> 02:25.130 They start out with 6, and once that reaches 0, then the game should stop and it should print, 29 02:25.130 --> 02:26.120 "You lose." 30 02:26.150 --> 02:28.670 So how does it go down to 0? 31 02:28.670 --> 02:35.480 Well, every time the user guesses a letter that is not in the chosen word, then we have to reduce 32 02:35.490 --> 02:42.390 their "lives" by one until eventually at some point it'll reach zero and they lose. 33 02:42.420 --> 02:49.140 Now, finally, we're going to incorporate the ASCII art from this list, which is called stages that 34 02:49.140 --> 02:51.540 I've added in the starting file for you. 35 02:51.540 --> 02:58.590 And you're going to print it out so that it corresponds to the current number of lives the user has 36 02:58.590 --> 02:59.370 remaining. 37 02:59.370 --> 03:08.770 And you might want to print out the stages using different indices or different positions to 38 03:08.770 --> 03:13.870 pick out different pictures and just get a feel for how they're ordered. 39 03:14.560 --> 03:16.510 So that's all there is to it. 40 03:16.510 --> 03:23.680 And if you're ready, then go ahead and pause the video now and attempt Step 4. 41 03:37.220 --> 03:37.760 All right. 42 03:37.760 --> 03:40.580 So let's start from TODO Number 1. 43 03:40.580 --> 03:44.300 This is probably the easiest TODO out of this whole project, 44 03:44.300 --> 03:48.620 create a variable called lives and set it equal to 6. 45 03:48.620 --> 03:50.690 That's it, TODO Number 1 done. 46 03:50.820 --> 03:51.900 Next, 47 03:51.900 --> 04:00.180 if the guess, so the current letter that the user has guessed based on their input is not a letter in 48 04:00.180 --> 04:06.600 the chosen_word, so it doesn't exist in the chosen_word, then we need to reduce lives by 1. 49 04:06.720 --> 04:14.310 Now you might remember that we have this if, elif, else statement here that checks to see if the guess 50 04:14.340 --> 04:18.350 is equal to the letter in the chosen_word. 51 04:18.350 --> 04:24.890 So by looping through each of the letters and one of them matches the guess, then this section does 52 04:24.890 --> 04:31.490 correspond to when the letter is in the chosen_word, but it does not correspond to when the letter 53 04:31.490 --> 04:33.530 is not in the chosen_word. 54 04:33.530 --> 04:38.690 So the situation where the user has guessed the letter that does not exist in the word. 55 04:38.690 --> 04:45.180 So rather than targeting the elif and else, or messing with this if statement, we can actually simply 56 04:45.180 --> 04:52.080 just write a completely separate statement so that we keep our logic separate and under different banners, 57 04:52.080 --> 04:54.930 and it will probably be easier to debug as well. 58 04:54.930 --> 04:59.490 So we can use the "not in" keyword. 59 04:59.490 --> 05:07.330 So we can say if the guess is not in the chosen_word, 60 05:07.510 --> 05:14.740 then under this condition, do we reduce the number of lives -= 1. 61 05:14.830 --> 05:24.940 And then if at this point, after we've subtracted 1 from lives, if lives is now equal to 0 at 62 05:24.940 --> 05:27.310 this point, well then that's game over, right? 63 05:27.310 --> 05:30.010 So we set game_over to True. 64 05:30.010 --> 05:33.710 And that means we break out of our while loop. 65 05:33.710 --> 05:40.160 And in addition, we're also going to tell the user that this has happened by telling them, "You lose." 66 05:40.250 --> 05:42.800 So that's TODO Number 2 tackled. 67 05:42.800 --> 05:50.090 Now the final TODO is simply just to print the ASCII art from this list corresponding to the current 68 05:50.120 --> 05:51.320 number of lives. 69 05:51.320 --> 05:59.730 Now, very helpfully, I've ordered the art in this list so that they correspond to the number of lives, 70 05:59.730 --> 06:02.550 so it starts out at 0, 71 06:02.550 --> 06:08.580 of course. This is what the picture should display when the user has zero lives. 72 06:08.580 --> 06:16.440 And also it goes all the way up to six, so that when the user has 6 lives, full lives, then you don't 73 06:16.440 --> 06:17.970 see the man at all. 74 06:17.970 --> 06:23.470 So that means it's as simple as simply getting the right indentation, 75 06:23.470 --> 06:30.430 so being inside our while loop, because we want to print these ASCII art each time the user makes a 76 06:30.430 --> 06:31.180 guess. 77 06:31.180 --> 06:36.880 And then we simply use the print statement to tap into that list, and then use the square brackets 78 06:36.880 --> 06:42.070 to choose the correct index or the correct position for the art we want to display. 79 06:42.070 --> 06:47.020 And as I just mentioned, it's matched to our lives situation. 80 06:47.040 --> 06:51.180 So that's all that we need to do in order to complete this, to do. 81 06:51.180 --> 06:58.500 And now if you run this code, you'll see that as long as I keep getting the right letter, my art remains 82 06:58.500 --> 07:04.830 on this particular picture, which is corresponding to lives equals six. 83 07:04.830 --> 07:14.020 And then as I make incorrect guesses, then my hangman picture starts progressing all the way until 84 07:14.020 --> 07:15.820 I end up with no lives, 85 07:15.820 --> 07:19.150 which is the last picture here. 86 07:19.150 --> 07:23.770 Lives equals six, and I get the, "You lose" printed out. 87 07:24.430 --> 07:26.950 So did you manage to solve these steps? 88 07:26.950 --> 07:32.440 I would say this particular step is probably a little bit easier than some of the previous ones, but 89 07:32.440 --> 07:40.310 as you've noticed, the difficulty can vary in this project and I just want to guide you from step to 90 07:40.310 --> 07:47.840 step, making sure that each to do and each of the step codes actually make sense. 91 07:47.840 --> 07:53.150 So if there's something you realize about previous steps that doesn't make sense, go back and rewatch 92 07:53.150 --> 07:59.690 it and just make sure that all the code that you see at this stage makes perfect sense to you, and 93 07:59.690 --> 08:02.210 that you would be able to write it from scratch.