WEBVTT 00:00.050 --> 00:00.560 Hello guys. 00:00.560 --> 00:01.580 Welcome to the video. 00:01.580 --> 00:07.310 In this one I want to show you how to flip the character because because right now if we try to run 00:07.310 --> 00:09.200 to the left he does not flip. 00:09.200 --> 00:10.760 And it feels weird, right? 00:10.760 --> 00:12.740 Let me explain what we can do here. 00:12.740 --> 00:17.030 So one of the ways is to flip the sprite over here. 00:17.030 --> 00:20.930 But actually I do not prefer this way for one simple reason. 00:20.930 --> 00:25.430 When we flip the sprite, we do not flip anything else except the sprite itself. 00:25.430 --> 00:32.090 So now my character is looking to the left, but his vector right, he's facing direction, goes to 00:32.090 --> 00:38.000 the right, and we cannot work with it because later on we're going to have a wall check for wall jump, 00:38.000 --> 00:44.330 which going to be casted to the right, and I want this check to be flipped as well when we flip in 00:44.330 --> 00:51.200 the character, because if you do it not like that, but if you rotate the character on the Y by 180. 00:52.810 --> 00:57.250 He also going to be facing left, but at the same time we're going to have his vector. 00:57.700 --> 01:00.550 Uh, to dot right, facing left. 01:00.550 --> 01:02.890 So we sort of know facing direction. 01:02.890 --> 01:06.940 We flip the facing direction and we flip sprite as well at the same time. 01:06.940 --> 01:08.470 That's why it is important. 01:08.470 --> 01:12.190 Now, how do we flip the character together with the facing direction. 01:12.190 --> 01:16.510 Actually I just showed you we're going to change rotation on the Y over here. 01:16.510 --> 01:21.070 And we're going to rotate character by 180 on the zero every time we want to flip him. 01:21.070 --> 01:26.650 And this is how it's going to look boom and then boom just like that. 01:26.650 --> 01:28.720 So let's go and do that in the script. 01:28.720 --> 01:32.320 Let's go and apply this rotation to the transform in the script. 01:36.030 --> 01:40.080 Um, somewhere all the way below but above on drawing gizmos. 01:40.260 --> 01:43.830 I'm going to make a method private void flip. 01:45.410 --> 01:47.090 Inside of this method I want to do. 01:47.120 --> 01:47.960 Transform. 01:47.960 --> 01:48.890 Rotate. 01:50.190 --> 01:57.840 Zero and x 180 on the Y and zero on the Z, so we only rotate him on the y axis. 01:58.170 --> 02:05.220 Now let's save this and let's just call this function to be sure it is working on the update I'm going 02:05.220 --> 02:10.560 to do if input get key down key code C clip. 02:10.560 --> 02:12.420 Just want to show you how it's going to work. 02:12.420 --> 02:13.440 Let's save this. 02:13.440 --> 02:14.550 Let's go back. 02:21.650 --> 02:27.170 And I'm standing here, I'm going to click the C button and I'm flipping. 02:27.590 --> 02:28.250 Okay. 02:28.250 --> 02:34.670 Now of course I cannot click this key on the keyboard every time I need to flip the character, I need 02:34.670 --> 02:37.400 to do it somehow, automatically. 02:37.580 --> 02:39.380 So this is how we're going to do it. 02:39.860 --> 02:47.360 We're going to make a method that will check if player is facing right and if he is facing right, but 02:47.360 --> 02:52.070 his velocity is negative and he running to the left means we need to flip him. 02:52.070 --> 02:57.590 Then if he's facing left, but he's supposed to be facing right because he's moving to the right, we're 02:57.590 --> 02:58.970 going to flip him again. 03:00.210 --> 03:01.740 For that over here. 03:01.740 --> 03:05.190 We need to make private boolean facing right. 03:05.190 --> 03:08.940 And we can give it a default value by just typing equals to true. 03:12.970 --> 03:17.260 So from the start this boolean will be true and we know that we are facing right. 03:17.590 --> 03:19.480 Now let's go. 03:21.360 --> 03:23.160 Somewhere here. 03:23.160 --> 03:24.990 And let's make a method. 03:25.920 --> 03:28.800 Private void handle. 03:28.800 --> 03:29.550 Lip. 03:30.200 --> 03:36.590 And inside of this method, we're going to make an if statement that will check if our velocity dot 03:36.590 --> 03:45.470 x is less than zero means we're moving to the left and he is facing right and facing right, then we 03:45.470 --> 03:47.900 need to add a flip method over here. 03:47.900 --> 03:49.310 So he's going to flip like that. 03:49.310 --> 03:52.820 Now let's go and check if he is flipping when he ran into the left. 03:52.820 --> 03:55.250 And we just need to call this method in the update. 03:55.520 --> 04:00.170 So over here after the movement I'm going to do handle flip. 04:01.800 --> 04:04.290 Okay, let's save it and let's go back. 04:11.570 --> 04:12.830 Now I'm standing. 04:12.830 --> 04:16.010 I'm going to run to the left and we flip in. 04:16.160 --> 04:19.160 But it is sort of too much. 04:19.160 --> 04:19.670 It's okay. 04:19.670 --> 04:21.020 We're going to fix it anyway. 04:21.020 --> 04:21.980 Now he flipped. 04:22.640 --> 04:26.150 And when I'm trying to run to the right, he's not flipping. 04:26.800 --> 04:27.250 Right. 04:27.250 --> 04:28.960 So how are we going to fix it? 04:31.440 --> 04:37.290 First of all, when we flip, we need not only to flip the character, but we need to say that he is 04:37.290 --> 04:38.940 not facing right anymore. 04:39.120 --> 04:43.200 And we could do it by saying facing right equals to false. 04:43.290 --> 04:46.020 Over here in the curly brackets. 04:46.690 --> 04:52.390 But that would be sort of an extra job because you can set Boolean to an opposite value in a different 04:52.390 --> 04:52.930 way. 04:53.290 --> 04:55.540 Let me just bring it back to what it was. 04:56.640 --> 05:04.440 And over here, every time we call a method flip, we're going to say facing right equals to not facing 05:04.440 --> 05:04.920 right. 05:04.920 --> 05:07.980 Exclamation mark over here means not. 05:07.980 --> 05:12.510 And this one basically says if you are true, become false. 05:12.510 --> 05:14.670 If you are false, become true. 05:14.850 --> 05:17.790 Just take an opposite value from what you have. 05:17.820 --> 05:21.810 Now let's go again to unity and see how it's working. 05:28.720 --> 05:32.650 And I'm standing there, I'm going to run to the left and I'm flipping only once. 05:32.650 --> 05:36.790 But when I try to run to the right, there is no flip. 05:36.790 --> 05:39.520 So we need to add flip for the right side as well. 05:42.180 --> 05:47.160 We can do that by adding here an Or condition. 05:47.160 --> 05:54.000 So if you type two slashes like that then it means or it's like typing or. 05:54.030 --> 05:54.810 Right. 05:55.170 --> 05:59.430 And we're doing one check or if. 06:00.650 --> 06:09.290 RB velocity dot x is bigger than zero, which means we're moving to the right and not facing right means 06:09.290 --> 06:10.940 we need to face the right side. 06:10.940 --> 06:13.190 And that's why we need to flip again. 06:13.190 --> 06:15.350 So let's go ahead and see if it's working. 06:19.250 --> 06:21.050 And we're good to go. 06:21.080 --> 06:23.540 We're only going to need to add one more update here. 06:23.540 --> 06:24.950 One more improvement. 06:26.540 --> 06:33.230 So I'm running to the right, left, right, left and it even works with the jump. 06:34.450 --> 06:35.290 Yay! 06:36.770 --> 06:37.850 Very cool rate. 06:37.850 --> 06:39.200 I love it so much. 06:41.830 --> 06:44.350 So basically we've got a platformer here. 06:44.350 --> 06:50.950 You just take a platform, uh, place it here, and now you have a platformer where you need to jump. 06:51.280 --> 06:52.090 Very cool. 06:52.720 --> 06:57.190 Now let's go to player and add one variable over here. 06:58.360 --> 07:03.940 It's going to be integer private int facing direction. 07:04.120 --> 07:05.170 It's going to be equals to one. 07:05.170 --> 07:05.830 By default. 07:05.830 --> 07:08.290 We're going to need this later on for different purposes. 07:08.290 --> 07:13.090 And this one will just help us to know when character is facing right or left. 07:13.300 --> 07:18.760 And we need it as a number because we're going to use it to move character to different sides, for 07:18.760 --> 07:23.380 example for knockback or for the wall jump or anything like that. 07:23.380 --> 07:25.630 So let's go back to the. 07:26.940 --> 07:28.980 Flip over here and type. 07:29.940 --> 07:36.720 Facing direction equals to facing direction multiplied by minus one, and this will multiply value by 07:36.720 --> 07:38.490 minus one every time we flip it. 07:38.490 --> 07:40.770 So it will be 1 or -1. 07:40.770 --> 07:43.470 Let's go and see how it works in a debug mode. 07:48.310 --> 07:52.570 So here debug we can see facing direction is equals to one. 07:52.960 --> 07:57.610 I'm facing left minus one one minus one one minus one. 07:58.030 --> 07:58.960 Very cool right. 07:59.440 --> 08:00.310 Yeah I think so. 08:00.310 --> 08:01.690 Well great job. 08:01.690 --> 08:02.920 Thank you for paying attention. 08:02.920 --> 08:04.270 I'll see you in the next video.