WEBVTT 00:00.480 --> 00:04.520 Else take a look at input for courses. 00:04.650 --> 00:13.620 So there's a similar function to our C in that can get one character from the input and Bouverie seen 00:13.620 --> 00:14.030 it. 00:14.050 --> 00:15.510 It's called. 00:15.770 --> 00:21.850 You get character get CH S.H. like this. 00:21.850 --> 00:32.530 So this will actually read one character from the input. 00:32.600 --> 00:40.370 So let's take a look at how to use this example. 00:40.490 --> 00:59.360 So say we had Julian Colquitt set false initially in the character store while not quit. 00:59.490 --> 01:15.660 You will set the input to this good character and if the input is a cue then we'll set quit to be false. 01:17.060 --> 01:18.160 Or true sir. 01:23.590 --> 01:24.740 In it. 01:24.880 --> 01:28.800 So it's kind of read this and see what happens. 01:29.580 --> 01:44.540 So if I type in here a c whatever and then I finally typed Q It will actually exit the curses window. 01:44.610 --> 01:46.830 And that's kind of what is this. 01:47.100 --> 01:52.170 And when does it kind of returns the terminal to its original state. 01:52.190 --> 01:53.790 Right. 01:54.390 --> 01:56.170 So it actually got it. 01:56.340 --> 02:05.470 But if you noticed it runs more time for you if we type something we'll see the characters here. 02:05.510 --> 02:11.950 I'm just typing randomly and we see a character who's kind of appearing on the screen. 02:12.020 --> 02:16.160 Well in our interactive games you don't want that to really happen. 02:16.160 --> 02:28.470 So how to make it so that when you type something it doesn't appear we can say no echo like this. 02:28.480 --> 02:38.170 So now if you run right into it again I'm typing can't see what I'm typing stuff but it's not working 02:38.640 --> 02:42.710 ok or it's not appear on the screen. 02:42.720 --> 02:48.150 But still if I press Q it'll it. 02:48.560 --> 02:56.690 So that's kind of nice to get rid of the echo of the characters you type. 02:56.690 --> 03:05.780 There's one more important thing and that is we've noticed that this character will block and even kind 03:05.780 --> 03:07.410 of prove it to you. 03:07.520 --> 03:20.810 I'll say M.V. all it's fresh here in the French w 03:24.580 --> 03:26.720 I'll just print it 03:29.140 --> 03:32.260 20:20. 03:32.340 --> 03:33.810 Hello everyone. 03:36.770 --> 03:37.660 OK. 03:37.990 --> 03:46.690 So if I run this you'll see that it never printed the M.V. print function. 03:46.710 --> 03:47.740 Hello everyone. 03:47.930 --> 03:48.590 OK. 03:48.960 --> 03:51.370 So it never actually printed this. 03:51.780 --> 03:55.730 So that means that this character is actually blocking. 03:55.740 --> 04:02.590 So if I type something it will actually show the hello everyone that we had for. 04:03.100 --> 04:10.900 You type again and again it just keep showing that which And actually exit OK. 04:11.090 --> 04:21.200 So that really means that this character kind of blocks the well everything's kind of blocked until 04:21.380 --> 04:23.580 good character works. 04:23.610 --> 04:25.990 So we can actually fix that. 04:27.730 --> 04:32.620 And we could say you know the way 04:35.730 --> 04:48.340 and no delay takes the windows no s d c r and then whether or not we want to do this or no delay. 04:48.360 --> 04:50.840 So it's true. 04:50.970 --> 04:52.400 So don't want delays. 04:52.500 --> 05:10.350 True means no delay and that will actually cause good character to not block any so actually. 05:10.630 --> 05:17.740 So you can actually still input but it kind of it'll check to see if you actually got any input if you 05:17.740 --> 05:23.830 didn't it'll kind of just keep going and then loop back and then again backtrack again. 05:24.120 --> 05:28.370 OK so let's see that kind of work. 05:28.370 --> 05:32.780 So now we should see if we run it we should actually see Hello everyone being printed. 05:34.060 --> 05:43.110 Stu so it actually printed it's not waiting for us to input it character anymore. 05:43.120 --> 05:51.080 OK so that's going to be very useful for our interactive games. 05:51.100 --> 06:00.860 So if I type something that happens type quit it still works it quits the way one nerves. 06:00.860 --> 06:14.810 One last thing we look at here and that is if you notice we can't actually use the arrow keys for input 06:14.930 --> 06:15.660 right now. 06:16.490 --> 06:20.110 And that could be useful for our games. 06:20.180 --> 06:23.180 A lot of these Iraqis. 06:23.420 --> 06:29.600 So you can actually fix that by seeing pad 06:33.160 --> 06:38.230 baps in using STDs are insane. 06:38.230 --> 06:39.070 True. 06:41.010 --> 06:44.910 And this war actually enables 06:47.160 --> 06:51.200 keyboard or arrow keys. 06:56.360 --> 07:05.210 So there's one other problem though and that is if this good character actually doesn't return characters 07:05.210 --> 07:06.330 or turns integer. 07:06.330 --> 07:09.990 So we should be using it here. 07:11.140 --> 07:13.400 And you actually compare. 07:13.420 --> 07:18.450 This is actually like I think I've mentioned this much earlier. 07:18.500 --> 07:20.600 We were talking about characters. 07:20.620 --> 07:22.120 This is actually an integer. 07:22.170 --> 07:25.600 It's quote Q here. 07:26.230 --> 07:32.050 So we should be using integers for input character. 07:32.260 --> 07:42.280 And now let's actually use the arrow keys so the arrow keys are actually defined by this key and underscore 07:43.090 --> 07:44.630 down here. 07:44.880 --> 07:50.150 There's also key up key like 07:53.110 --> 07:56.980 in key right. 07:57.510 --> 08:01.410 So we'll probably want to use that for our games. 08:01.710 --> 08:03.810 So now if I run this 08:08.730 --> 08:13.270 and if I press the arrow key down it'll actually quit. 08:14.430 --> 08:18.850 So that's kind of how to enable the. 08:18.950 --> 08:23.320 So that's kind of it for inputs in the next lecture. 08:23.320 --> 08:33.000 I want to go over a complete example and show you how to really how to put it all together into something 08:33.210 --> 08:38.950 that we can base our games off of you in the next lecture.