WEBVTT 00:01.080 --> 00:07.450 So now you've gotten the ship or the boards to draw properly. 00:07.800 --> 00:12.420 Actually almost done sort of we even know it didn't seem like it. 00:12.420 --> 00:17.430 All we've done and play game is do the set up boards but really that was actually a lot of the heavy 00:17.430 --> 00:20.900 lifting in tween lectures. 00:20.970 --> 00:22.410 I just set up the 00:25.260 --> 00:35.640 to run in my terminal because I want to have it I want to be able to clear the screen and use that clear 00:35.640 --> 00:38.850 screen function that we wrote hangman. 00:38.910 --> 00:47.750 One thing I did also is I changed the size of my bat the terminal window the default size. 00:47.760 --> 00:53.380 Usually it's like 80 by 24 I made it 86 by 32. 00:53.580 --> 01:00.750 So I did that by going to preferences and then settings and then in the window size that is change that 01:00.750 --> 01:07.710 columns to 86 and the roosted to you in Windows. 01:07.800 --> 01:14.430 You really just have to right click and then hit preferences or something or settings possibly and you'll 01:14.430 --> 01:16.830 see somewhere called 01:19.700 --> 01:24.970 I think it's like size or something and then you can actually change the size of your window on Windows 01:24.970 --> 01:26.170 as well. 01:26.230 --> 01:29.700 So that's just one thing I did. 01:30.210 --> 01:31.930 So I'm not going to show you how to set that up. 01:31.930 --> 01:35.160 I showed you that already in hangman. 01:35.650 --> 01:45.950 So now I want to in our draw function is done here. 01:47.570 --> 01:48.660 Job boards. 01:48.720 --> 01:52.930 I will clear the screen clear screen 01:56.560 --> 01:58.990 J. 02:00.280 --> 02:00.550 Do. 02:00.550 --> 02:13.290 This is a one vertical clearing the screen and there's one other thing I want to do in set up boards. 02:13.810 --> 02:18.190 You wrote that function in our 02:20.380 --> 02:26.330 utilities to wait for a key press. 02:26.350 --> 02:28.410 So I actually want to use it here. 02:28.420 --> 02:35.250 So here I want to use wait for key press. 02:35.370 --> 02:40.200 And actually here AFTER AFTER THIS TO WAIT FOR THIS 02:44.510 --> 02:46.240 like that it's. 02:46.320 --> 03:02.000 So now if I run it and I say A or actually say J say 10 or Zambal it wasn't a valid placement it says 03:02.010 --> 03:06.200 it's a and b c it says Press any key to continue. 03:06.720 --> 03:13.870 So then again it's a one horizontal k. 03:14.200 --> 03:17.290 So it's working pretty nicely. 03:17.320 --> 03:25.690 So now we should really just start wrapping up really. 03:25.690 --> 03:30.070 So we want to finish play game 03:32.730 --> 03:35.650 and you may think so many things to do. 03:35.780 --> 03:46.870 It's really not that mean things to do and actually one thing we need is the current player or current 03:47.100 --> 03:59.170 Where am actually going to set them to be Player 1 just because player 1 will get precedence and the 03:59.170 --> 04:03.560 other player will be player to notice him using pointers here. 04:04.140 --> 04:17.770 And I will also get the guess an I guess and we'll say do will draw the boards. 04:18.790 --> 04:21.450 Of the current player. 04:23.410 --> 04:26.230 Since it's a pointer we have to dereference it. 04:27.200 --> 04:44.410 And all I have is valid guess at and we'll say Do While know is valid guess. 04:44.490 --> 04:48.810 So we basically want to get it or. 04:48.810 --> 04:52.830 Well first we want to prompt either so see Ouch 04:56.640 --> 05:01.930 current We're name 05:05.640 --> 05:08.820 what Which guess 05:12.990 --> 05:20.900 K and then we'll get the guess using the function he already made get board position. 05:21.180 --> 05:31.480 It's very me that function last time and we'll basically it's a valid guess is no guess a valid guess 05:31.570 --> 05:32.290 if 05:34.500 --> 05:42.540 essentially the current CH clear 05:46.010 --> 05:48.130 so the guest board 05:51.260 --> 05:55.640 so his guest board is is valid. 05:55.640 --> 06:01.010 If it wasn't if we haven't guessed they're essentially so 06:03.560 --> 06:06.510 what. 06:07.160 --> 06:12.180 So if that's equal to G.T. non 06:19.700 --> 06:22.870 So that's that one. 06:23.170 --> 06:25.510 While these 06:29.380 --> 06:30.960 will make that in a minute. 06:31.270 --> 06:35.960 So that's really all there is to that one. 06:36.580 --> 06:39.950 And then we have to check to see if it's not valid. 06:39.970 --> 06:43.000 Yes we should just output. 06:43.960 --> 06:56.580 Yes we should point to the user that it was which was a valid guess. 06:56.850 --> 06:58.270 He. 06:58.590 --> 06:59.240 Yes. 07:04.310 --> 07:08.690 So. 07:08.910 --> 07:15.570 So now that we have a valid guess we should update the board. 07:15.670 --> 07:16.310 Right. 07:16.750 --> 07:26.820 So the board will actually return to ship type the ship type that was hit. 07:27.400 --> 07:32.760 So when to use ship type time. 07:33.720 --> 07:45.950 And it's going to be cool to update or it's using the guess in the current player and the other glare 07:50.420 --> 07:54.090 and then we will draw the boards of the current player 07:59.410 --> 08:07.430 so and we'll say if the type is not equal to Esti none right. 08:07.450 --> 08:10.530 So if it was a hit. 08:10.540 --> 08:29.050 In other words and if it if we sunk the other players ship the player and other player so his ships 08:29.950 --> 08:34.710 of the type that we hit minus one. 08:34.840 --> 08:35.520 OK. 08:35.740 --> 08:38.290 So notice up here. 08:38.290 --> 08:48.650 That's how we kind of initialize our ships before we actually initialized it in this order. 08:48.680 --> 08:53.880 So aircraft carrier first then shipping group cruiser than destroyer and submarine. 08:54.080 --> 08:56.980 And we have this none here. 08:57.000 --> 08:57.570 Right. 08:57.830 --> 09:01.670 Well we I actually initialize them in this order as well. 09:01.670 --> 09:04.680 So that's not a coincidence how I initialized it. 09:04.970 --> 09:13.200 So the type will actually be one plus the 09:15.940 --> 09:21.400 proper index into the players ships. 09:21.420 --> 09:26.030 OK so the example aircraft carrier is one. 09:26.110 --> 09:30.410 In this case so but aircraft carrier should be zero. 09:30.410 --> 09:40.680 Is that is the zero element in the ship so I just said down here and play a game type minus one. 09:41.020 --> 09:42.180 OK. 09:42.220 --> 09:49.410 So that's again another use for income's is using them as indices into arrays. 09:49.510 --> 09:50.170 OK. 09:50.260 --> 09:53.720 And I did that very purposely. 09:54.340 --> 09:56.830 So that was not an accident. 09:56.980 --> 09:59.260 So Ouch. 09:59.340 --> 10:00.170 You sunk 10:03.980 --> 10:04.920 there. 10:06.320 --> 10:11.680 The air is a your all your name 10:17.790 --> 10:23.330 and then that ship name or ship type 10:28.900 --> 10:29.420 so 10:34.350 --> 10:50.410 gay men here we will say wait for the press just so that it doesn't automatically get cleared once drop 10:50.410 --> 10:55.130 or will call the job boards. 10:55.180 --> 10:58.600 That's OK. 10:58.750 --> 11:01.710 So and then we will switch the players 11:05.700 --> 11:19.090 in the current player and other player and notice I'm giving it the address of these pointers. 11:19.100 --> 11:28.160 So if you saw the lectures four pointer pointers you know what I'm going to do here. 11:28.580 --> 11:31.490 And then so is game over. 11:31.490 --> 11:32.660 I'm going to need 11:35.990 --> 11:38.040 one player to. 11:40.360 --> 11:42.900 And we're going to need display when her 11:54.980 --> 11:55.680 k. 11:55.920 --> 12:06.710 So really we need to implement update boards is sunk so players is game over and display winner. 12:08.040 --> 12:14.620 And they'll be one more with in is game over that we already saw two improvement. 12:14.670 --> 12:21.270 So let's start at finding these and let's start with updateable it's 12:25.420 --> 12:26.380 capitis 12:34.800 --> 12:41.820 turn ship type ship that you hit. 12:41.930 --> 12:51.830 If you did hit one and ship position to I guess and should be 12:55.490 --> 13:01.250 the should be a reference. 13:01.630 --> 13:05.940 Is your current player. 13:07.720 --> 13:08.210 Here. 13:08.280 --> 13:09.330 It's the other. 13:13.270 --> 13:20.020 So it's going to hit it right here. 13:21.500 --> 13:22.820 So update board. 13:22.820 --> 13:40.720 So if the other player ship or third the CAS row and the gas column so if it's a 13:43.360 --> 13:48.810 type so if it's not Esti none then it must be a hit. 13:48.870 --> 13:50.010 Right. 13:50.130 --> 13:52.070 Is the hitch. 13:52.120 --> 13:54.210 Otherwise it's not a hit. 13:54.370 --> 13:55.310 OK. 13:55.840 --> 14:11.840 So the current player gets bored Gastar row guess or call them is Gaspard. 14:11.860 --> 14:15.180 This should be cat. 14:15.860 --> 14:17.410 And the other player 14:20.790 --> 14:24.280 shipboard. 14:24.520 --> 14:26.030 Yes. 14:28.860 --> 14:30.020 Yes. 14:30.220 --> 14:32.910 Call them in. 14:32.910 --> 14:34.280 This should be. 14:34.440 --> 14:44.090 Is hit and it's true. 14:44.570 --> 14:49.340 And then here you say get current player like he didn't hit. 14:49.340 --> 14:58.020 He missed us or had just bored guest row and stuff. 14:58.120 --> 15:02.130 Which column is he missed. 15:04.340 --> 15:14.070 And will return other player ship or add in the guest row. 15:15.070 --> 15:20.600 In the yes column in the ship. 15:20.620 --> 15:21.000 Right. 15:22.060 --> 15:22.640 OK. 15:22.970 --> 15:27.230 So whether it's Jiechi non or it's some other type. 15:27.440 --> 15:28.430 OK. 15:29.610 --> 15:32.460 So that's really it for the update. 15:32.460 --> 15:43.070 Actually it's really nothing more to it what to do is game over. 15:43.260 --> 15:44.150 Cup is 15:48.880 --> 15:50.380 put it here. 15:51.450 --> 15:53.820 And returns true if the game's over and falls. 15:53.840 --> 15:54.430 It's not 15:57.850 --> 16:03.260 need to change the player it also can be Konst. 16:03.670 --> 16:04.290 Your 16:08.260 --> 16:09.390 copy it's 16:11.960 --> 16:20.310 in play place it after here is OK. 16:20.470 --> 16:23.210 So how would this work. 16:29.490 --> 16:39.260 So if we look we made some new function called are all ships sunk in. 16:39.270 --> 16:41.140 Gave it the player. 16:42.160 --> 16:49.030 So we need to implement that. 16:49.160 --> 17:15.000 So here we're just going to say return our ship ships sunk one or our ships song for play or to and 17:15.280 --> 17:18.640 now appear are going to implement. 17:18.650 --> 17:24.610 So it's going to turn a billion are all ships 17:26.870 --> 17:28.840 and given the player 17:32.450 --> 17:33.160 here. 17:34.030 --> 17:56.670 And we go through see through this number of ships plus an F notch is on onto that next ships 18:00.170 --> 18:01.500 and we return false right. 18:01.530 --> 18:17.540 So if one is not Sonke and not all the ships just like lies which are true and now for the sunk will 18:19.040 --> 18:24.030 sunk in now declare everything above. 18:25.510 --> 18:26.890 Where in the 18:32.300 --> 18:33.800 SO if 18:37.060 --> 18:42.240 the ship's orientation is horizontal 18:47.030 --> 18:59.290 then we'll go through all the columns of the ship ship position column 19:03.640 --> 19:07.070 then ship session 19:09.580 --> 19:12.570 complex ship such as 19:17.050 --> 19:19.090 boss. 19:19.260 --> 19:26.900 If so if it's not it's not hit here. 19:27.730 --> 19:37.780 Then you know it's not sunk because they are every part of the ship has to be hit in order for it to 19:37.780 --> 19:40.290 be sunk. 19:40.550 --> 19:44.730 Shane Rowe column 19:48.280 --> 19:51.660 it's not hit and there's no way. 19:52.480 --> 19:59.590 And then we just do that for the critical case for each row. 20:01.620 --> 20:04.450 Ship and 20:08.170 --> 20:16.560 ship and rope was ship ships as 20:19.960 --> 20:26.590 boss if not where. 20:30.120 --> 20:36.450 Grew and ship the ship and call column. 20:36.620 --> 20:37.910 So if that's not hit 20:41.630 --> 20:43.280 then it can't have been on 20:47.260 --> 20:51.970 here if it never return then obviously they're all sunk. 20:52.270 --> 20:56.010 Or it or this ship at least sunk. 20:56.560 --> 20:59.230 So now it's clear that these 21:07.980 --> 21:09.230 after it came over 21:31.400 --> 21:34.520 so we're almost done. 21:34.520 --> 21:41.250 Actually we just need to do switch players and just play winner. 21:41.620 --> 21:48.340 So let's do this one. 21:48.480 --> 21:49.690 It's kind of fun. 21:52.360 --> 22:00.720 So it's going to return nothing and it's going to take a pleasure star star 22:03.890 --> 22:06.620 because we're going change the original pointer. 22:09.620 --> 22:10.810 Just like we learned 22:13.490 --> 22:17.820 in the last section. 22:17.980 --> 22:20.830 So put it straight here. 22:23.470 --> 22:32.980 So where start Tim it temporary will be the current where say 22:35.780 --> 22:43.980 in the current Where is going to be the other player. 22:48.400 --> 22:55.560 And the other player be OK. 22:55.740 --> 22:57.850 So see our new you are referencing. 22:57.960 --> 23:01.950 Each time we're actually changing the original pointer. 23:02.220 --> 23:08.370 So we've gone over this in the last section so you should kind of understand how this is working now. 23:08.370 --> 23:15.510 And we whenever the swap kind of function before so you kind of understand how this whole swap functions 23:15.510 --> 23:17.580 sort of works as well. 23:17.610 --> 23:18.450 OK. 23:18.840 --> 23:25.180 So that's how you switch the player which players. 23:25.600 --> 23:32.980 And now really in what's left all there is left is really the display winner 23:36.360 --> 23:44.000 so this one should be fairly obvious as well. 23:44.020 --> 23:45.910 How to write it. 23:47.100 --> 23:53.460 Kind of written it a bunch of times for. 23:54.540 --> 23:58.640 So I passed this by conc player reference 24:01.320 --> 24:02.330 player for it. 24:02.390 --> 24:02.960 It's 24:05.550 --> 24:18.450 like so gay and let's just put it after as players emitting command like command click to go to these. 24:18.450 --> 24:24.370 If you're under just in case you're wondering how I'm doing that. 24:24.460 --> 24:28.050 So just put it right here. 24:29.310 --> 24:30.140 OK. 24:30.610 --> 24:42.220 And if it works you can use this one and again are all ships sunk player one then obviously player 2 24:42.280 --> 24:42.560 1. 24:42.570 --> 24:43.160 Right. 24:43.320 --> 24:44.100 Yeah. 24:46.690 --> 24:50.840 Great nations 24:54.590 --> 24:57.640 to your name 25:01.130 --> 25:01.730 you 25:08.580 --> 25:12.260 and else. 25:12.310 --> 25:13.240 Yeah. 25:19.060 --> 25:20.070 Shin's 25:23.050 --> 25:24.020 player 1 25:36.130 --> 25:41.670 K super simple. 25:41.770 --> 25:43.820 So that's really it. 25:43.820 --> 25:47.510 So what's actually plaguing 25:50.430 --> 25:51.310 one error. 25:51.350 --> 25:54.610 No ship name for type 26:05.300 --> 26:06.880 so I don't think that cleared 26:12.430 --> 26:29.650 so it's. 26:29.690 --> 26:33.530 So let's actually play one game of that. 26:33.890 --> 26:35.930 See if everything's working correctly. 26:35.950 --> 26:52.940 So a going to do the simplest possible out I can think of you on Mars aren't all an easy one. 26:54.090 --> 27:04.030 Horizontal so for player one all all of his hours all of his ships will be all horizontally and player 27:04.030 --> 27:07.360 to all be vertical OK. 27:07.700 --> 27:09.610 Gee when. 27:09.810 --> 27:16.000 So it all in one Santal. 27:16.200 --> 27:16.810 OK. 27:16.930 --> 27:20.640 So here is the press the key to continue. 27:20.680 --> 27:22.120 Thing again. 27:22.120 --> 27:23.630 So here's my lay out. 27:23.640 --> 27:26.950 Player 1 and Player 2. 27:27.100 --> 27:29.090 I will do all vertical. 27:29.410 --> 27:41.860 A 1 vertical in a three vertical 27:45.360 --> 27:51.060 A five go a 27:53.830 --> 27:59.600 seven or goal a 28:02.310 --> 28:03.300 vertical. 28:03.730 --> 28:05.410 And here's player do. 28:05.910 --> 28:10.480 So now switch to player 1 player 1 What is your guess. 28:10.870 --> 28:15.210 I'm going to make player one just completely destroy a player do. 28:15.290 --> 28:27.070 So I'm going to use kind of clairvoyant credible here and try that one so see how it hit. 28:27.260 --> 28:29.030 So this is my guess for it. 28:29.090 --> 28:34.640 It's a hit and it prompts me to continue by pressing any key. 28:35.700 --> 28:41.810 So player 2 What's your guess be on. 28:41.820 --> 28:45.420 So I see he has this here right. 28:46.050 --> 28:50.080 So hopefully you will do this pretty quick. 28:50.190 --> 28:52.320 Be one 28:58.970 --> 29:04.810 hit and guess B to here. 29:06.580 --> 29:17.700 Miss C-One hit and guess B three three 29:20.490 --> 29:23.080 d one. 29:23.310 --> 29:24.390 Still ahead. 29:24.560 --> 29:27.880 No this has hasn't hasn't actually sunk a ship. 29:28.010 --> 29:28.630 Right. 29:29.310 --> 29:31.410 And B for 29:33.980 --> 29:41.060 he one so use player to use aircraft carrier. 29:42.620 --> 29:45.160 There you go. 29:46.550 --> 30:00.690 Hopefully Stroh's be possible that be five miss a three. 30:02.630 --> 30:03.580 Next 30:09.480 --> 30:11.350 you won't play the entire game. 30:12.200 --> 30:14.850 P. 30:16.810 --> 30:19.120 Posts three their posts for that. 30:19.210 --> 30:20.990 No no no. 30:22.540 --> 30:25.010 So B. 30:25.300 --> 30:28.820 I mean so you get the idea. 30:28.820 --> 30:32.240 So I think everything's actually working pretty well. 30:32.540 --> 30:41.630 And in the next lecture I want to go over adding a nice little feature because it's kind of annoying. 30:41.630 --> 30:47.980 Playing against two human players raped her two human players playing when there's only one of me or 30:48.590 --> 30:52.180 so would be nice if I could play against a simple AI. 30:52.400 --> 30:55.450 So that's what we'll be doing in the next lecture.