WEBVTT 00:00.040 --> 00:03.400 We will shoot out a ray from this anime game object. 00:03.400 --> 00:07.480 So we're going to do the same thing as we have done with this player game object. 00:07.480 --> 00:10.120 So let's open up our anime script quickly. 00:10.640 --> 00:13.720 Let's double click on that in order to open that up. 00:13.840 --> 00:15.520 So we're going to delete some line of code. 00:15.560 --> 00:21.800 Basically setting that line renderer component as using that we have done with this player game object. 00:21.800 --> 00:23.080 So let's go to scape. 00:23.080 --> 00:29.360 But before we do make sure you just go to the top of your class and include this namespace call using 00:29.400 --> 00:31.160 system dot collection. 00:31.160 --> 00:37.640 So it's going to allow us in order to delay some line of code, or it's going to allow us to use coroutine 00:37.680 --> 00:38.640 function. 00:38.640 --> 00:41.600 So we're going to do it somewhere over here. 00:41.800 --> 00:45.800 And for we're going to use this AI enumerator function. 00:45.800 --> 00:47.360 So AI enumerator. 00:47.360 --> 00:50.280 And we have to name the function what we want to call it. 00:50.280 --> 00:56.440 So I'm going to call it something like shoot shoot raycast something like that. 00:56.760 --> 00:59.920 And let's make first bracket and some curly brackets. 00:59.920 --> 01:01.760 So why are we using this function. 01:01.760 --> 01:03.600 Because we're going to delete some line of code. 01:03.640 --> 01:10.080 Basically, we want a line renderer component to shoot out from this anime game object to the left direction. 01:10.600 --> 01:16.120 So we need to enable as well as after a short period of time we need to disable that. 01:16.280 --> 01:20.080 So we just want to delete something after enabling it. 01:20.080 --> 01:26.920 So that's why we're going to use this function in order to delay or in order to do some specific things 01:26.920 --> 01:29.080 after a short period of time. 01:29.560 --> 01:33.280 So this is the reason we're using that. 01:33.280 --> 01:36.480 So first thing what we're going to do we're going to shoot out a ray. 01:36.720 --> 01:39.520 So we're going to use a function called raycast 2D. 01:39.520 --> 01:41.920 So we're going to use this physics 2D. 01:41.920 --> 01:47.440 So we need to use this physics 2D dot raycast function and this function as a first argument. 01:47.440 --> 01:51.320 It's going to take the position from where we want to shoot out the ray. 01:51.320 --> 01:56.160 So we're going to shoot out the ray from this enemy GameObject gun point to the left direction. 01:56.160 --> 01:58.600 And the second thing it's going to take the direction. 01:58.600 --> 02:01.480 And the third thing it's going to take the length of the ray. 02:01.480 --> 02:06.000 And the fourth thing it's going to take the layer mask, basically which game object we want to target. 02:06.000 --> 02:08.360 So we're going to target this player game object. 02:08.360 --> 02:10.600 So as a layer mask we're going to choose player. 02:10.600 --> 02:14.080 So let's go to the top of our class and let's grab those things. 02:14.080 --> 02:16.040 So first thing we need a position. 02:16.040 --> 02:18.880 So let's make a public transform. 02:18.880 --> 02:22.560 And we can call this one to something like shoot point or fire point. 02:22.560 --> 02:24.640 So I'm going to call it fire point. 02:25.080 --> 02:27.600 And the second thing we need the direction. 02:27.600 --> 02:29.080 But we're going to use vector two. 02:29.080 --> 02:31.520 Dot left basically means the left direction. 02:31.520 --> 02:34.680 So we don't need to create a variable for that. 02:35.360 --> 02:40.800 But we need a variable about our length of the ray which is just going to be the distance. 02:40.800 --> 02:43.480 So I'm going to make a another public float. 02:43.480 --> 02:46.240 And we can call this something like ray length. 02:46.240 --> 02:48.560 And I'm going to call it instead distance. 02:48.880 --> 02:50.520 And let's set equal to. 02:50.720 --> 02:52.320 So I'm going to give a default value. 02:52.320 --> 02:58.240 Or you can just simply close that up with semicolon if you just want to set and then underneath your 02:58.240 --> 02:58.680 script. 02:58.680 --> 03:01.640 But I'm going to give a default value something like ten F. 03:01.920 --> 03:07.370 And the third uh, fourth thing we need the layer mask or which game object really we want to target. 03:07.370 --> 03:13.810 So let's create another public layer mask and we can call this one to something like attack layer or 03:13.810 --> 03:14.410 target layer. 03:14.410 --> 03:16.850 So I'm going to call it target Layer instead. 03:17.010 --> 03:20.330 And now let's go to that function where we're shooting. 03:20.330 --> 03:22.290 Also we're doing it over here. 03:22.450 --> 03:27.370 So first thing it's just gonna need the position from where we want to shoot shoot out. 03:27.370 --> 03:31.330 So I'm going to pass our fire point dot position from the. 03:31.370 --> 03:35.890 So make sure you just type this dot position basically accessing the position. 03:35.890 --> 03:38.650 And the second thing we need are the direction. 03:38.650 --> 03:41.250 So we're going to shoot out the ray in the left direction. 03:41.250 --> 03:43.330 So we can simply use Vector2 dot. 03:43.770 --> 03:46.090 It basically means -one inch the x. 03:46.090 --> 03:49.090 So it's going to go to negative and y in the zero. 03:49.490 --> 03:51.850 So we're not going to shoot out the ray in the y. 03:51.890 --> 03:54.650 So that's why it's going to be zero in the y. 03:54.690 --> 03:57.170 So we're going to use that vector2 dot left. 03:57.170 --> 03:59.610 So we're going to use vector2 dot left. 03:59.650 --> 04:01.930 It's basically means -one inch the x. 04:01.930 --> 04:06.410 So the ray just going to shoot out to the left direction and why in this video? 04:06.410 --> 04:09.490 So the ray not gonna shoot out at all in the Y. 04:09.530 --> 04:11.930 So it's gonna shoot out in the left direction. 04:12.250 --> 04:15.570 And the third thing we need the distance or the length of the ray. 04:15.570 --> 04:18.290 So I'm going to pass my distance parameter. 04:18.290 --> 04:21.690 And by default I set a ten unit as you can see. 04:22.970 --> 04:24.410 So we're getting an error. 04:24.410 --> 04:28.810 Basically we already created a target layer as you can see. 04:29.250 --> 04:30.770 So I'm going to remove this. 04:31.130 --> 04:34.570 And instead of we just ignore this parameter. 04:34.570 --> 04:40.010 Or we can simply create a layer for this for this as well. 04:40.010 --> 04:45.370 So in the top over here we can see we already have a target layer variable name. 04:45.370 --> 04:50.810 So that's why we just getting a one getting error in order to create one more time. 04:50.810 --> 04:52.650 Because we already have that. 04:52.650 --> 04:55.930 So you need to some you need to name it something else. 04:55.930 --> 04:58.570 Or you can just simply use this one as well. 04:58.610 --> 05:02.290 Because as a target layer we have chosen that player game object. 05:02.290 --> 05:06.330 We do know and we really want to damage our player game object. 05:06.330 --> 05:08.930 So that's why we can use this as well. 05:08.930 --> 05:12.890 So we can just going to remove this or you can simply create one as well. 05:12.890 --> 05:14.170 It's totally up to you. 05:14.170 --> 05:18.530 But I'm going to use this one because as a target layer I have chosen player. 05:18.530 --> 05:21.450 And we really want to damage our player game object. 05:21.450 --> 05:25.570 So that is the reason I'm gonna use this one more time. 05:25.570 --> 05:27.970 So that's why I didn't create at all. 05:28.170 --> 05:33.890 The second parameter, if you just want then you can create one more layer mask and you can call it 05:33.890 --> 05:36.210 something like Attack Layer and Attack Layer. 05:36.210 --> 05:41.490 You can simply choose your player game object or which game object you just want to damage. 05:41.810 --> 05:43.210 So I'm gonna use that. 05:43.210 --> 05:46.810 So as a fourth argument I'm going to pass this target layer. 05:46.970 --> 05:52.130 And as a target layer I have already chosen the player which I really want to damage. 05:52.130 --> 05:54.730 And then we're going to close that up with semicolon. 05:54.730 --> 06:00.650 So this physics 2D dot raycast it's gonna shoot out the ray from this fire point dot position in the 06:00.650 --> 06:03.290 left direction with this much of length of the ray. 06:03.370 --> 06:06.810 And then it's only going to target our player game object. 06:06.810 --> 06:13.490 So this over here, this ray just gonna return us a true value or false value, depending upon if the 06:13.490 --> 06:16.530 ray is really collide with this player game object or not. 06:16.570 --> 06:23.010 If it's, then it's gonna give us a true value, else it will give us a false value. 06:23.010 --> 06:23.850 So what are we going to do? 06:23.850 --> 06:27.690 We're going to store the result into a raycast hit 2d parameter. 06:27.730 --> 06:28.170 Why? 06:28.210 --> 06:32.650 Because this physics 2D dot raycast it's going to work as a ray. 06:32.650 --> 06:37.530 So that's why we're going to store the result into another raycast hit 2d parameter. 06:37.810 --> 06:39.810 So let's create a raycast. 06:40.050 --> 06:43.850 Hit 2d and we have to call it what we want to name it. 06:43.850 --> 06:48.170 So I'm going to call it something like hit info or hit in hit information. 06:48.170 --> 06:50.450 And I'm going to set equal to this. 06:50.450 --> 06:52.090 So this hit info over here. 06:52.090 --> 06:57.730 It can be true or false depending upon if the ray is really colliding with this player game object or 06:57.730 --> 06:57.930 not. 06:57.970 --> 07:01.010 If it's then this function is just going to be true right away. 07:01.010 --> 07:07.370 So that's why this hit info is going to be true, because we're storing this result into this hit info 07:07.370 --> 07:09.700 container or into this parameter. 07:09.900 --> 07:14.340 So what we do want to do now we're going to check if hit info is true. 07:14.340 --> 07:17.660 Basically means the array really collide with this player game object. 07:17.660 --> 07:22.140 So in that situation what we need to do we need to damage our player game object. 07:22.140 --> 07:24.980 But before we do let's print out a message. 07:24.980 --> 07:26.940 So I'm going to move over to our script. 07:26.940 --> 07:30.700 And over here we're going to check if raycast. 07:30.740 --> 07:31.140 Sorry. 07:31.180 --> 07:35.860 If hit info is equals equals to true if that is the case. 07:35.860 --> 07:42.660 So let's make some curly brackets and if hit info is true, basically means the ray is colliding with 07:42.660 --> 07:43.940 that player game object. 07:43.940 --> 07:46.980 Or we can simply just pass this hit info. 07:47.260 --> 07:47.980 Hit info. 07:47.980 --> 07:54.180 Basically, it also means the same thing means if hit info is true, then what we need to do, we need 07:54.180 --> 07:55.820 to damage our player. 07:55.820 --> 07:58.260 But for now we're going to print out a message. 07:58.260 --> 08:02.660 So that's why we're going to type this debug debug dot log. 08:03.060 --> 08:08.900 And we're going to print out message something like uh the player game object takes damage. 08:08.900 --> 08:11.660 So we're going to use this parameter which is hit info. 08:12.060 --> 08:18.100 So by this hit input parameter we can extract info something like the name of the game object that we 08:18.140 --> 08:19.060 collided with. 08:19.100 --> 08:21.140 And I think that we can access. 08:21.140 --> 08:26.860 So what I'm going to do I'm going to use I'm gonna go over to this parameter which is hit info. 08:27.100 --> 08:29.500 And then we're going to access the game object. 08:29.500 --> 08:32.660 So sorry, we're going to access the collider. 08:32.980 --> 08:36.380 Or we can simply access the transform as well. 08:36.380 --> 08:39.860 And then we're going to access the game object and then name. 08:40.060 --> 08:42.780 And top of that I'm going to add a custom message. 08:42.780 --> 08:45.500 So we're going to use this plus icon and make quotation. 08:45.500 --> 08:48.460 And I'm going to say something like text damage. 08:49.580 --> 08:51.580 And let's close that up with semicolon. 08:51.580 --> 08:56.180 So what we basically doing we just taking this hit info parameter. 08:56.180 --> 09:03.020 So we're using this hit info parameter in order to extract information about the ray collided with. 09:03.020 --> 09:06.260 So let's suppose the ray collided with this player game object. 09:06.260 --> 09:12.260 So what we do what we're doing in in that moment we're just going to that game object transform component 09:12.260 --> 09:14.900 and then access the accessing the game object. 09:14.980 --> 09:17.660 So over here hit info dot transport. 09:17.700 --> 09:21.300 Game object basically means the game object that they collided with. 09:21.340 --> 09:23.980 So the ray is just going to collide with this player game object. 09:23.980 --> 09:27.580 So we basically going over to this player game object Transform. 09:27.580 --> 09:33.660 And by this transform we just accessing the whole game object of whole game object in our case player. 09:33.660 --> 09:38.620 And then we just accessing the name and we can see in the inspector the name is player. 09:38.620 --> 09:42.420 So this over here just going to be player the name of the game object. 09:42.420 --> 09:47.540 And top of that we just added a custom message says take damage as you can see. 09:47.540 --> 09:51.300 So this is going to be a message something like player takes damage. 09:51.300 --> 09:54.860 So this message just going to pop up in the console right away. 09:55.460 --> 10:00.260 So we can simply press down control S in order to save our script. 10:00.260 --> 10:05.420 But before we do that, as you can see we're using this short raycast function. 10:05.420 --> 10:10.300 So what we have to do, we need to use this return because we are getting an error. 10:10.460 --> 10:14.020 As you can see over here in our function. 10:14.260 --> 10:23.020 So what we need to do we need to use this yell return new Waitforseconds new wait four seconds and make 10:23.060 --> 10:25.540 first bracket and close that up with semicolon. 10:25.660 --> 10:28.060 So we're just gonna wait this amount of time. 10:28.060 --> 10:29.460 So you need to pass in. 10:29.460 --> 10:31.300 Wait four seconds over here. 10:31.300 --> 10:34.820 The time after that amount of time, what you want to do. 10:35.100 --> 10:43.620 So I'm gonna I'm gonna do something like after 0.1 or 1 to 4 second, we want to do some specific thing. 10:43.620 --> 10:46.460 So we haven't set up the line renderer yet. 10:46.460 --> 10:48.660 So we're going to print out a message first. 10:48.980 --> 10:53.020 Uh, something like uh debug dot log for printing out message. 10:53.420 --> 10:59.500 And we can simply say uh in quotation, uh, disable something like that. 10:59.660 --> 11:01.500 Disable Ray. 11:01.980 --> 11:05.460 Uh, or we can simply say LR means line renderer. 11:05.460 --> 11:07.740 And we're going to close that up with semicolon. 11:07.940 --> 11:12.220 So we also need to call this function, uh where we're going to call this function. 11:12.220 --> 11:15.220 We're going to call it inside this function. 11:15.220 --> 11:18.780 As you can see, we're just printing out a message in the console. 11:18.820 --> 11:22.100 Say instead of doing that we're going to call this function. 11:22.100 --> 11:24.500 This should should raycast function. 11:24.500 --> 11:26.100 And what this function is doing. 11:26.140 --> 11:28.140 Firstly it's just creating the ray. 11:28.180 --> 11:33.220 And then if the ray just collide with this player game object, then we just printing out the name of 11:33.220 --> 11:34.140 the game object. 11:34.140 --> 11:40.540 As you can see, uh name, sorry name, as well as uh, which is uh, adding a custom message. 11:40.540 --> 11:45.060 So this player takes damage messages gonna be pop up right away. 11:45.060 --> 11:47.100 And after this amount of time. 11:47.140 --> 11:47.500 Yield. 11:47.500 --> 11:47.900 Return. 11:47.900 --> 11:48.220 New. 11:48.380 --> 11:54.460 Uh, wait for a second, then what we're doing, we just setting that disable alert so we don't, uh, 11:54.540 --> 11:57.500 haven't set up the line renderer component yet. 11:57.500 --> 12:00.820 So that's why we just, uh, printing out a message for now. 12:00.820 --> 12:06.140 So we also need to call this function and this function, just gonna do this thing and make sure you 12:06.140 --> 12:08.220 just using this yield return new. 12:08.220 --> 12:11.620 Wait for a second and you can put the time in this brackets. 12:11.900 --> 12:17.430 Uh, the time after that amount of time, you can just do specific things that you want to do. 12:17.630 --> 12:22.310 So I'm just setting I'm just printing out a message says disable error. 12:22.350 --> 12:23.510 As you can see. 12:23.510 --> 12:28.750 So instead of printing out message over here in this shoot function we're going to call this shoot raycast 12:28.750 --> 12:29.630 function. 12:29.630 --> 12:37.190 But we do know in Ienumerator or in order to call a enumerator function we need to use this Startcoroutine. 12:37.430 --> 12:41.110 It's kind of a bit weird, but we have to use and then make first bracket. 12:41.110 --> 12:44.910 And this first bracket you need to put uh the function name. 12:44.910 --> 12:47.750 So in our case this should raycast hit. 12:47.750 --> 12:52.030 So we need to call the function inside this first brackets. 12:52.030 --> 12:56.150 So in our case shoot raycast and then make this first bracket. 12:56.150 --> 12:58.230 And then close that up with semicolon. 12:58.470 --> 13:02.110 So we do know that we're calling the shoot function through animation event. 13:02.110 --> 13:07.390 Basically whenever our enemy game object playing the animation clip which is the shooting one. 13:07.430 --> 13:12.390 Then we're calling the shoot function and we also calling this shoot raycast function. 13:12.390 --> 13:17.550 Once we call this shoot function and what should raycast function is doing? 13:17.590 --> 13:23.510 Firstly, it is creating the ray from this position in the left direction with this much of length. 13:23.510 --> 13:28.230 And then we only targeting our player game object and we checking in the next time. 13:28.230 --> 13:35.310 If hit info means is true means our ray just colliding with that player game object, then we just printing 13:35.310 --> 13:36.910 out a message in the console. 13:36.950 --> 13:39.510 Says player takes damage as you can see. 13:39.710 --> 13:45.670 And after this amount of time we just printing out message disable error as you can see. 13:45.790 --> 13:48.990 So we're going to press down Ctrl S in order to save our script. 13:48.990 --> 13:50.990 And now let's move over to unity. 13:54.030 --> 13:56.950 So we will able to see that message. 13:58.390 --> 14:03.910 So we basically have done the same thing as we have done in our player game object. 14:03.910 --> 14:10.230 What we have done in shooting lecture on this player game object, we basically approaching the same 14:10.270 --> 14:13.630 way or with our enemy game object. 14:13.630 --> 14:19.110 So I'm going to select my console tab and let's click on this play button in the top to play our game. 14:19.630 --> 14:25.950 And you will see once this anime game object is just gonna play the attack animation, it's gonna call 14:25.950 --> 14:26.830 the shoot function. 14:26.830 --> 14:30.790 And inside that function we just basically calling the shoot raycast. 14:30.790 --> 14:35.790 We just creating, but we are we gonna get a point basically error. 14:36.550 --> 14:38.470 As you can see we're getting an error. 14:38.470 --> 14:39.830 So we're going to get out of play mode. 14:39.870 --> 14:43.950 Basically we need to assign those variable one way one by one. 14:43.950 --> 14:48.150 So if I select my enemy GameObject in the hierarchy then go over to Inspector. 14:48.150 --> 14:51.670 We can see Fire Point and it says None Transform. 14:51.670 --> 14:56.030 So we haven't created any fire point yet to this player game object. 14:56.030 --> 14:58.270 So we need to assign as a target layer. 14:58.270 --> 15:02.270 We already have chosen player, so make sure you choose that and fire point. 15:02.270 --> 15:03.790 It says none transform. 15:03.790 --> 15:10.070 So we need to create a fire point or a shoot point from where we want to shoot our way in this anime 15:10.070 --> 15:10.830 game object. 15:10.830 --> 15:13.110 So let's select the anime GameObject in the hierarchy. 15:13.110 --> 15:16.470 Let's right click on it, and let's create an empty game object. 15:16.470 --> 15:19.630 And I'm going to call this game object to something like fire point. 15:20.230 --> 15:21.470 Fire point. 15:22.030 --> 15:24.910 And we're going to move this point somewhere over here. 15:24.910 --> 15:28.150 But before we do I'm going to select my enemy game object. 15:28.350 --> 15:31.790 Then I'm gonna move over to this animation tab and then shooting. 15:31.990 --> 15:38.790 So we need to drag the fire point somewhere over here on top of our gun in this anime game object. 15:38.790 --> 15:42.990 So I'm going to select our fire point and we're gonna drag it somewhere over here. 15:43.310 --> 15:45.110 So this is going to be perfect time. 15:45.110 --> 15:45.550 Sorry. 15:45.590 --> 15:46.670 Perfect position. 15:48.270 --> 15:50.030 Uh, somewhere over here. 15:50.030 --> 15:56.430 So if you just, uh, getting snipping or just moving one, uh, grid, uh, kind of a bit weird. 15:56.430 --> 15:58.750 Then in the top, you can see magnetic. 15:58.750 --> 16:01.390 So you can just click that in order to disable. 16:01.390 --> 16:07.390 And now you can freely move that point anywhere you want, or we, uh, basically we're just getting 16:07.390 --> 16:10.830 an error in order to move this, uh, fire point. 16:10.830 --> 16:13.150 And I'm going to select and gizmos for that. 16:13.150 --> 16:13.590 To do. 16:13.590 --> 16:14.950 So let's go to Inspector. 16:14.950 --> 16:20.240 Click on this box and we're going to select this yellow Christmas, something like that. 16:20.240 --> 16:22.840 And now we're going to select our enemy one game object. 16:22.840 --> 16:25.320 And let's select the fire point from that hierarchy. 16:25.320 --> 16:28.320 And let's drag it over to this fire point slot. 16:28.640 --> 16:30.720 And we're going to move over to overrides. 16:30.720 --> 16:32.600 And then click on Apply All. 16:32.840 --> 16:34.680 And now it should be fine. 16:34.680 --> 16:40.360 But before I'm going to select my console tab and let's click on this layer in order to clear out all 16:40.360 --> 16:41.400 of the messages. 16:41.720 --> 16:46.200 And now let's click on this play button in the top in order to play our game. 16:46.520 --> 16:52.960 So as soon as this enemy game object is going to shoot out on this, uh, our, on our player game object, 16:53.280 --> 16:54.160 that should function. 16:54.160 --> 16:54.760 Gonna call. 16:54.760 --> 17:01.040 And in that shoot function, we just are calling the shoot raycast function, which is just doing the 17:01.040 --> 17:03.240 best thing, which is creating our way. 17:03.760 --> 17:10.120 As you can see, as soon as we just collided with this circle, we can see a message just getting pop 17:10.160 --> 17:11.080 up in the console. 17:11.080 --> 17:12.240 Says player takes damage. 17:12.240 --> 17:16.360 So I'm going to click on this pause button in the top in order to pause my game. 17:16.480 --> 17:23.280 And we can see player takes damage after, uh, after some period of time or short period of time, 17:23.280 --> 17:27.280 we can see a message, gets pop up, says disable error. 17:27.480 --> 17:30.360 Uh, basically, we also are doing a thing. 17:30.400 --> 17:34.880 Basically, after this amount of time, we just printing out a message in the console. 17:34.920 --> 17:36.080 Disable error. 17:36.120 --> 17:37.240 As you can see. 17:37.360 --> 17:42.960 So instead of doing all of these things, what we need to do, we need to, uh, show our line renderer 17:43.000 --> 17:46.120 or the laser that we shoot in the left direction. 17:46.120 --> 17:53.360 So we also need to do that, uh, do the thing as we have done in this player game object, which we, 17:53.520 --> 17:56.320 uh, basically attach the line renderer component. 17:56.320 --> 18:00.360 So we need to do the same thing with this player game object as well. 18:00.400 --> 18:06.240 I'm going to click on this play button in the top in order to get out of play mode and make sure you 18:06.240 --> 18:12.480 just go to uh, select your enemy one game object and make that one first prefab and then go to overrides 18:12.480 --> 18:15.400 in the Inspector and then click on Apply All. 18:15.400 --> 18:21.400 So the changes you made, it's going to be saved into this enemy one GameObject prefab as well.