WEBVTT 00:00.540 --> 00:05.420 So let's do the top down design for a hangman. 00:05.430 --> 00:10.060 So like I said before you really should just start with the highest level possible. 00:10.200 --> 00:10.860 So 00:13.150 --> 00:25.470 basically do while you want to play again just like we had in number guess or this and is play the game 00:27.530 --> 00:29.510 in this. 00:29.660 --> 00:36.480 And this is kind of the high level. 00:36.720 --> 00:41.250 Step one let's say of the top down design. 00:41.760 --> 00:47.060 So now we should be breaking down play a game and want to play again. 00:47.370 --> 00:53.550 We might skip want to play again because we've kind of already done that before so we'll just kind of 00:53.550 --> 00:55.610 copy what you have for. 00:55.620 --> 00:59.750 So let's just go to Step 2. 01:02.610 --> 01:03.530 Play a game 01:12.530 --> 01:17.210 for all or main Maybe this will be your main 01:20.490 --> 01:21.620 play game. 01:23.320 --> 01:25.080 So how do you play the game. 01:25.090 --> 01:28.050 Well the first thing you should do is get. 01:28.100 --> 01:32.050 It's the secret word right. 01:32.320 --> 01:33.820 That's it. 01:33.910 --> 01:34.350 It's 01:38.100 --> 01:43.020 an and then you should probably want to make 01:47.620 --> 01:49.290 the hidden word right. 01:52.470 --> 01:56.850 That's using probably using secret word or 02:00.790 --> 02:06.020 and maybe set the number of guesses. 02:06.170 --> 02:11.150 Laughs It should be six. 02:11.150 --> 02:11.950 In this case. 02:11.950 --> 02:12.500 Right. 02:15.280 --> 02:21.570 And we didn't talk about this but maybe draw rob again. 02:24.210 --> 02:35.530 Draw the gallows or the word say and here we should say do 02:38.010 --> 02:44.290 and while not game is over. 02:49.440 --> 02:55.790 OK we will get the guess so that's a guess. 02:55.790 --> 03:06.970 So let's actually let's formalize it a little bit more so it's a secret word is get the secret word 03:07.900 --> 03:10.790 secret word. 03:10.920 --> 03:26.980 So now see that's a function let's say and the hidden word or phrase may be phrase in phrase should 03:26.980 --> 03:28.780 be. 03:29.300 --> 03:40.580 Maybe have a function for making hidden raise using the secret phrase 03:43.010 --> 03:52.090 say and setting the number of guesses left it should just be number guesses. 03:52.210 --> 03:53.260 Wow. 03:55.090 --> 03:56.430 Six. 03:56.810 --> 04:04.820 OK so we're kind of sort of making this into code but you know again high level let's just say draw 04:05.540 --> 04:07.480 and say draw the board. 04:09.080 --> 04:09.530 Somehow 04:12.920 --> 04:23.460 ants actually probably need the phrase is because you should be drawing not only the let's just put 04:23.460 --> 04:24.600 it up here. 04:24.950 --> 04:29.160 So it would be something like this 04:37.460 --> 04:38.600 somehow right. 04:41.010 --> 04:41.460 It's 04:44.480 --> 04:44.890 OK. 04:44.980 --> 04:55.330 And then you'd have that guy if you had any bad guesses and then you kind of say you know dash dash 04:55.330 --> 05:06.770 dash dash dash and all your secret word there's something revealed there any say like this. 05:06.820 --> 05:09.340 So it's going to look something like this. 05:09.570 --> 05:14.570 And this will be the draw board part. 05:14.630 --> 05:18.070 So then we'll get to yes. 05:18.570 --> 05:19.440 Yes. 05:20.580 --> 05:21.650 Somehow. 05:22.350 --> 05:27.280 And we will date the board somehow. 05:29.130 --> 05:32.540 UPDATE This part and this part 05:35.210 --> 05:46.560 with the gas and probably the secret phrase and maybe even the hidden phrase because maybe we need to 05:46.560 --> 05:48.200 change it somehow. 05:50.480 --> 05:51.040 OK. 05:51.290 --> 05:52.630 Something like this. 05:53.530 --> 05:56.470 And maybe we will draw the board again. 06:01.040 --> 06:01.790 Phrase 06:05.080 --> 06:11.910 and we should check to see if it was a good guess or not. 06:13.050 --> 06:18.130 So if it's if it wasn't a good guess 06:23.290 --> 06:28.150 and I guess the we'll know if it's a good guess maybe will return 06:30.520 --> 06:32.970 TRUE TRUE for the update. 06:33.030 --> 06:33.220 Right. 06:33.250 --> 06:40.150 Because this is where we would check an update or this is where we check to see if it should be revealed 06:40.150 --> 06:40.500 or not. 06:40.500 --> 06:41.040 Right. 06:41.320 --> 06:44.470 If one of the letters for guess would be revealed. 06:44.470 --> 06:58.740 So maybe this will return true if it was a good guess was guess is this if it wasn't and we'll say no 06:58.800 --> 07:12.720 it's just the number guesses is this guesses left minus minus right or equals two or minus equals 1 07:12.720 --> 07:16.050 or something like. 07:16.880 --> 07:18.450 And while the game's not over. 07:18.530 --> 07:27.010 And then at the end we should display results again as we did with that number guesser. 07:27.030 --> 07:34.680 So I will say it provided the secret word or phrase an. 07:35.170 --> 07:37.960 Maybe the number of guesses Laughs Because 07:40.690 --> 07:44.340 guess in it's because 07:48.470 --> 07:54.960 if it if we still have if it's a positive number of yeses then we want right. 07:55.290 --> 08:03.910 And if it's zero and last Ok so this is kind of the high level I'm just you know again I don't know 08:03.910 --> 08:11.430 how to do any of this stuff yet but I'm just sort of kind of working my way through what makes sense. 08:11.510 --> 08:11.930 OK. 08:11.950 --> 08:16.030 So I just said OK you know you have to get this in the first place. 08:16.270 --> 08:18.830 You have to make the hidden phrase right. 08:19.000 --> 08:20.260 Set this set. 08:20.260 --> 08:23.740 How many guesses we have left. 08:23.740 --> 08:28.290 This is all just kind of initialization and a game. 08:28.430 --> 08:35.380 This whole thing is just initialization and then you know draw the board somehow. 08:35.380 --> 08:45.100 So they know you know what two or how many dashes there are in the whole phrase and then we just go 08:45.100 --> 08:46.030 through the game. 08:46.030 --> 08:52.060 So we just kind of get the input as just getting the input and then we update the board. 08:52.120 --> 08:55.060 And then we draw the board. 08:55.150 --> 08:56.470 And then we 08:59.410 --> 09:05.470 in fact we can even like we don't even need to have this part here we could even pass in the number 09:05.470 --> 09:06.740 of guesses. 09:07.890 --> 09:16.150 Right here you don't even need this. 09:16.230 --> 09:17.810 Maybe it'll update. 09:18.090 --> 09:19.910 Maybe it will update itself. 09:19.940 --> 09:21.120 Right. 09:24.070 --> 09:26.400 Things just made a change. 09:26.470 --> 09:30.530 So good pass by reference right. 09:31.810 --> 09:37.810 So now we just get the yes we update the board with the guess. 09:38.120 --> 09:42.190 We draw the board and then we do this while the game's not there. 09:42.530 --> 09:48.780 So and then when this game is over we just you know say how many are safe. 09:48.790 --> 09:49.940 You got it or not. 09:50.140 --> 09:52.330 And that's it. 09:52.430 --> 09:54.550 That's kind of how you play the game. 09:54.920 --> 09:59.560 So let's go through some of these. 09:59.570 --> 10:02.080 So again we're going to skip I want to play again. 10:02.120 --> 10:03.590 Does it matter. 10:03.590 --> 10:04.970 You know how that works. 10:06.480 --> 10:12.760 We're going to break down getting the secret word. 10:14.240 --> 10:18.170 It's the secret word. 10:18.270 --> 10:20.970 So please stick to us. 10:24.400 --> 10:25.680 Or is it threes or 10:31.940 --> 10:32.560 so. 10:32.580 --> 10:34.570 Step three get the secret word right. 10:34.790 --> 10:37.250 So you should probably have 10:41.890 --> 10:45.030 well not her how would you do this. 10:45.030 --> 10:48.160 You just prompt the user right prompt user 10:51.960 --> 11:07.100 or the word and used get it just like we did in the practice of the dynamic memory secret phrase or 11:20.830 --> 11:26.260 prompt in get it and get it somehow. 11:30.950 --> 11:37.160 You probably know how to do this and then we just return while we're going we have to turn anything 11:37.160 --> 11:42.540 yet we don't know or return I guess her secret phrase 11:47.620 --> 11:49.260 again this might not be 100 percent correct. 11:49.270 --> 11:57.970 But again this is just an outline for us to understand how things are working and the next one so says 11:57.970 --> 11:59.430 make hidden phrase. 11:59.560 --> 12:02.670 You don't do that let's say me. 12:03.310 --> 12:08.810 Reads took the secret phrase right. 12:15.710 --> 12:18.180 So how would this work. 12:18.570 --> 12:20.300 OK well we need to 12:22.780 --> 12:24.040 somehow copy 12:26.380 --> 12:33.120 the or new Maybe New 12:38.100 --> 12:44.850 meet new C string. 12:45.080 --> 12:50.150 Given the length of the secret phrase 12:53.220 --> 13:01.140 gates if you remember in the dynamic memory how to do this or and so need to do that. 13:01.150 --> 13:03.370 And let's just set it to. 13:03.620 --> 13:07.860 It's called The Hidden phrase that somehow. 13:08.450 --> 13:09.550 OK. 13:09.580 --> 13:26.380 And then for the length of secret phrase we set them all three dashes Kings hidden phrase 13:28.820 --> 13:33.800 whatever the current one is should be a dash and hide it. 13:33.800 --> 13:37.980 So when we try it they all look like dashes. 13:39.150 --> 13:46.190 So we just do that for every letter and the secret phrase and then we return. 13:47.930 --> 13:48.410 Phrase 13:53.380 --> 13:55.220 in that's kind of it. 13:55.320 --> 14:01.080 That's one the date the board. 14:01.190 --> 14:04.300 So I think we know how to get the gas. 14:04.300 --> 14:06.020 We've done this before. 14:06.050 --> 14:07.540 So let's kind of skip that 14:10.340 --> 14:12.450 and we'll say update each 14:15.530 --> 14:16.370 board. 14:20.210 --> 14:20.500 It's 14:24.620 --> 14:26.580 and took all this stuff. 14:26.580 --> 14:29.510 So let's take this 14:37.110 --> 14:38.540 space in here. 14:40.740 --> 14:42.570 So how do you update the board. 14:42.570 --> 14:44.250 What do you do here. 14:44.250 --> 14:52.230 Well basically we're going to take a guess and check every letter in the secret phrase right. 14:53.510 --> 14:58.050 And see if that gas matches one of those letters. 14:58.240 --> 15:11.250 And if we do match then we just kind of reveal the those letters in the hidden phrase. 15:11.270 --> 15:18.060 So for however many ones that exist in the secret phrase we'll just reveal it all in the hidden phrase. 15:18.560 --> 15:29.400 And if we didn't find one then we will decrement the number of guesses left. 15:29.900 --> 15:36.520 So we will basically say Savo like a. 15:37.240 --> 15:41.160 And this is sort of use code and sort and I can use code. 15:41.160 --> 15:44.440 So I found was false right. 15:44.480 --> 15:46.310 And Riskin save for 15:49.340 --> 15:59.010 the link of the secret phrase right. 16:02.330 --> 16:05.310 We will. 16:05.380 --> 16:17.310 So if the secret phrase is guess OK. 16:17.680 --> 16:26.690 So if it is that letter then we'll say no hidden 16:29.470 --> 16:33.540 phrase as to the guess. 16:33.670 --> 16:34.190 Right. 16:34.210 --> 16:36.790 So we just reveal it in that spot. 16:36.820 --> 16:42.780 So you either spot is that guess we just reveal it in a hidden friezes spot. 16:42.800 --> 16:44.190 Remember these are the same length. 16:44.200 --> 16:47.560 So this works. 16:48.720 --> 16:51.180 And then we'll say we found it 16:54.810 --> 17:02.600 and maybe even here we should say I like and not found something so we can observe her. 17:02.610 --> 17:07.260 Well actually we shouldn't touch we shouldn't do that because we need to go through the entire type 17:07.290 --> 17:08.910 thing. 17:09.040 --> 17:22.510 So if it wasn't found then the number of guesses left or right minus minus. 17:22.610 --> 17:22.880 Right. 17:22.920 --> 17:25.100 Dickerman that. 17:26.150 --> 17:29.560 And that's kind of it. 17:29.590 --> 17:33.840 So the last one 17:38.050 --> 17:44.110 because again I think we do this display results we did this in the last game. 17:44.500 --> 17:50.490 So we know I do this maybe I should say game do the it's game over. 17:50.500 --> 18:00.520 So is it over. 18:00.550 --> 18:02.420 Probably give it. 18:02.480 --> 18:11.640 It's anything here yet but we'll probably need to know the number of guesses left because it'll be over 18:11.650 --> 18:14.820 if the number of guesses left is zero. 18:15.670 --> 18:17.560 Or if the 18:21.620 --> 18:27.280 in phrase is completely trivial. 18:27.280 --> 18:27.700 Right. 18:27.910 --> 18:31.910 So Scott is 18:39.670 --> 18:41.160 peace here. 18:47.160 --> 18:57.260 So the game is over if all the dashes are gone right. 18:57.300 --> 18:58.430 The hidden phrase right. 18:58.470 --> 19:02.230 Because that would mean that the whole word is revealed. 19:02.530 --> 19:06.540 So let's do that. 19:07.190 --> 19:14.020 So if I have a dash has dash. 19:14.050 --> 19:20.900 Would you say it's false right away for the length of the hidden phrase. 19:23.240 --> 19:38.700 If I didn't raise of I say is equal to the Jash that means we haven't found it right. 19:40.440 --> 19:43.830 Dash holds true. 19:45.730 --> 19:54.020 And in this case now say and not as Dasch. 19:54.130 --> 20:04.800 And then we could just say return the number of guesses left is zero or we have a dash 20:10.100 --> 20:11.200 and that's it. 20:11.240 --> 20:13.960 This one. 20:14.070 --> 20:14.730 So 20:17.300 --> 20:18.970 again we're going to skip the display result. 20:18.970 --> 20:24.610 We're going to skip drawing board because we we do know how to do this but this will be this would be 20:24.620 --> 20:26.760 one of the first things we actually do. 20:26.870 --> 20:28.950 It's just a lot of typing. 20:29.330 --> 20:31.970 So it's not hard. 20:32.060 --> 20:32.330 All 20:36.010 --> 20:39.740 so we've kind of done everything we really need to think. 20:39.800 --> 20:44.900 So we skipped get gas we skipped display results because we've done this in the last games innings we 20:44.900 --> 20:46.930 can't know that works. 20:46.960 --> 20:51.050 And Skip I want to play again. 20:51.800 --> 20:58.690 But other than that this whole thing is kind of solved and we basically have all the code for it already. 20:59.580 --> 21:04.800 So in the next lecture we will actually implement everything.