WEBVTT 00:00.080 --> 00:01.560 Let's code our game. 00:01.560 --> 00:06.720 Basically, once this player game object collides with this heart, it need to be collected. 00:06.720 --> 00:10.600 Also, this heart need to play the heart collected animation clip. 00:10.760 --> 00:12.120 So we're going to do that. 00:12.120 --> 00:18.960 So before we do, uh, if we select our heart sprite and then move over to animator tab, we can see 00:18.960 --> 00:22.120 we have two animation heart idle and Heart Collected. 00:22.120 --> 00:24.680 And we need to trigger this collide parameter. 00:24.680 --> 00:29.360 And we do know once we trigger it's going to play the heart collected animation. 00:29.360 --> 00:32.720 And we're going to trigger this collide parameter through our code. 00:32.760 --> 00:36.720 Once our player GameObject collect this heart game object. 00:36.720 --> 00:38.040 So we're going to do that. 00:38.040 --> 00:40.920 So let's select our player GameObject in the hierarchy. 00:40.920 --> 00:43.840 And let's open up the player script by double clicking on it. 00:44.560 --> 00:49.000 And we're going to use Ontriggerenter 2D function basically this one. 00:49.000 --> 00:51.640 So this function get called when we trigger with something. 00:51.680 --> 00:58.640 And you can just ignore these things over here and make sure you just include this function in your 00:58.640 --> 01:00.370 class which is On trigger. 01:00.410 --> 01:04.610 Enter 2D function and this function get called when we trigger with something. 01:04.610 --> 01:10.850 So if I select my heart gameobject in the hierarchy, then move over to Inspector Polygon Collider 2d. 01:10.890 --> 01:13.770 We can see we just take this trigger box. 01:13.770 --> 01:17.930 So that's why we're going to use that on trigger enter 2D function. 01:17.930 --> 01:22.890 So that function get called when we collide with something on when we trigger with something. 01:22.890 --> 01:27.690 So let's suppose this player game object trigger with this heart game object. 01:28.250 --> 01:31.370 Then this function over here just gonna get trigger. 01:31.490 --> 01:35.850 And we can extract extract information about what we hit with. 01:36.010 --> 01:41.770 So by moving over to this collision parameter we can extract info something like a name of the game 01:41.810 --> 01:42.170 object. 01:42.170 --> 01:47.210 We trigger it with the tag of the game object or the component that we're looking for. 01:47.210 --> 01:50.130 So we can just extract info about that. 01:50.130 --> 01:55.610 So what we're going to do now, uh, basically we're gonna check if we trigger with this heart and if 01:55.610 --> 01:57.850 this game object has a tag called heart. 01:57.850 --> 02:00.910 And if we select our heart GameObject in the hierarchy. 02:00.950 --> 02:05.030 We can see in the Inspector tag, we assign it as a heart attack. 02:05.190 --> 02:07.870 So we're going to trigger with this trigger with this. 02:07.870 --> 02:14.230 So in that situation what we need to do we need to increase our health amount of this player game object 02:14.230 --> 02:15.470 by one unit. 02:15.470 --> 02:20.510 And after that we need to play the heart animation heart collected animation clip. 02:20.710 --> 02:26.110 And also we need to destroy that heart heart game object once we collect that. 02:26.110 --> 02:26.950 So let's do that. 02:26.950 --> 02:28.670 So we're going to move over to script. 02:28.670 --> 02:30.470 And over here we're going to check. 02:30.470 --> 02:33.470 So this function get called when we trigger with something. 02:33.670 --> 02:39.990 And what we're going to do over here we're going to check if we make some first bracket and some curly 02:39.990 --> 02:42.750 brackets and what we want to check over here. 02:42.750 --> 02:45.710 We just want to check the game object we triggered it with. 02:45.750 --> 02:49.270 We can we're going to extract the tag of the game object. 02:49.270 --> 02:52.710 So we're going to use this collision parameter in order to do that. 02:52.710 --> 02:54.870 So let's go to collision parameter. 02:54.870 --> 02:58.750 So I'm going to use this collision dot sorry. 02:59.360 --> 03:03.240 We're going to use this collision dot game object. 03:03.400 --> 03:05.640 Sorry I'm really apologize for it. 03:05.800 --> 03:07.480 Game object dot tag. 03:07.840 --> 03:11.000 And we're going to check if it's equals equals to heart. 03:11.040 --> 03:14.720 If that is the case means we're just colliding with the heart. 03:15.080 --> 03:18.000 Uh, means you need to put inside this quotation. 03:18.000 --> 03:19.840 So make sure you just do that. 03:19.840 --> 03:24.080 So collision dot game object basically means the game object we created with. 03:24.080 --> 03:29.360 So if this player game object trigger with this heart game object or collide with this heart game object. 03:29.360 --> 03:33.600 So the collision game object right there, this heart game object. 03:33.600 --> 03:35.160 And what are we doing after that. 03:35.160 --> 03:38.160 We just extracting the tag of the game object. 03:38.160 --> 03:43.280 So we basically moving over to this heart game object and then accessing the tag of it. 03:43.280 --> 03:47.680 So we can see we assign it with heart tag, as you can see in the inspector. 03:47.680 --> 03:51.360 And we're checking if the tag is equals equals to heart. 03:51.360 --> 03:54.920 And definitely we're going to trigger with that heart game object. 03:54.920 --> 03:57.600 And we assign it that heart as a heart tag. 03:57.640 --> 03:59.610 As you can see in the inspector. 03:59.610 --> 04:02.770 So we're definitely gonna trigger with this heart game object. 04:02.770 --> 04:08.730 So in this situation, what we need to do, we need to increase our player max health by one unit. 04:08.730 --> 04:12.930 And after that this heart game object need to play the heart animation clip. 04:12.970 --> 04:14.170 Sorry not heart. 04:14.210 --> 04:17.490 The collected animation clip of this heart game object. 04:17.490 --> 04:18.650 So let's do that. 04:18.650 --> 04:22.610 So we're gonna are just collecting over here as you can see. 04:22.730 --> 04:25.090 So we're checking the tag of the game object. 04:25.090 --> 04:29.930 If it's equals equals to heart means we basically trigger it with heart game object. 04:29.930 --> 04:32.330 So now we're going to increase our max health. 04:32.450 --> 04:34.650 So the max health we set by default. 04:35.570 --> 04:40.410 Uh you can see we have it over here as you can see. 04:40.410 --> 04:42.930 So we're gonna increase this max health by one unit. 04:42.930 --> 04:44.050 So let's do that. 04:44.530 --> 04:46.770 So we're going to do it over here. 04:47.410 --> 04:49.490 So the max cell so max cell. 04:49.490 --> 04:50.890 And top of that I'm going to add. 04:50.890 --> 04:53.970 So we're going to use this plus equal in order to add. 04:53.970 --> 04:56.570 And we're going to add one unit of health. 04:56.570 --> 04:57.870 So I'm going to put one. 04:58.230 --> 04:59.950 And after that, what we need to do. 04:59.990 --> 05:02.830 We also need to play the hurt animation clip. 05:02.990 --> 05:06.270 The collected animation clip of this hurt game object. 05:06.270 --> 05:13.070 So we we do know that if we select our hardest sprite in sprite, we can see a animator component is 05:13.070 --> 05:15.910 attached to this sprite game object. 05:15.910 --> 05:20.550 So basically what we have to do, we need to move over to this hurt game object first. 05:20.550 --> 05:25.230 And by this we're going to move over to this transform of this hard game object. 05:25.230 --> 05:31.030 And by this transform reference we're going to access the first child so hard sprite right over here. 05:31.030 --> 05:33.870 It's going to be the first child or the first. 05:34.070 --> 05:36.710 So the index is just gonna be zero. 05:37.230 --> 05:43.670 And uh, and we do know that, uh, animator component is attached to this sprite game object, not 05:43.670 --> 05:45.150 this hard game object. 05:45.150 --> 05:51.430 So that's why we need to move over to this sprite game object or the or the child of this hard game 05:51.470 --> 05:52.070 object. 05:52.070 --> 05:55.870 Then we're gonna move over to this animator component of this hard sprite. 05:55.950 --> 06:01.080 And by getting this animator component, we're going to trigger this collider parameter. 06:01.080 --> 06:06.440 And we do know once we collide it's going to play the heart collected animation clip right away. 06:06.520 --> 06:07.560 So let's do that. 06:07.640 --> 06:11.520 So over here what we're going to do we're going to use this collision. 06:11.920 --> 06:18.120 So we will go to collision dot GameObject means we basically move over to that basically this heart 06:18.160 --> 06:18.880 game object. 06:18.880 --> 06:23.640 And now what we're going to do we're going to access the child of this heart game object because the 06:23.680 --> 06:28.120 animator component is attached to this heart sprite, not this heart game object. 06:28.120 --> 06:31.040 So you can see in the inspector as well. 06:31.480 --> 06:33.760 So that's why we're going to access the first child. 06:33.960 --> 06:36.520 So we will move over to transform. 06:36.520 --> 06:39.560 And then we're going to use this dot get child function. 06:39.560 --> 06:42.200 And over here get child function in brackets. 06:42.200 --> 06:44.320 It's going to take the index of the child. 06:44.480 --> 06:50.680 So the first child so hard sprite we can see we have only one child of this heart game object. 06:50.920 --> 06:53.680 And the first child is just going to be index zero. 06:53.680 --> 06:58.050 So if you just pass right over here zero in this gate cell. 06:58.050 --> 07:00.130 So it's going to reference the first cell. 07:00.130 --> 07:06.610 And if you let's suppose pass one what basically means the second child or the second child index is 07:06.610 --> 07:07.610 going to be one. 07:07.610 --> 07:11.250 But we don't have any second child as you can see. 07:11.290 --> 07:15.970 And the animator component is attached to the first first child. 07:15.970 --> 07:21.410 So that's why in this brackets I'm going to pass zero zero basically referencing the first child. 07:21.450 --> 07:25.330 And after that what we're going to do, we're going to go to that sprite game object. 07:25.330 --> 07:27.170 So we're going to type this game object. 07:27.170 --> 07:31.570 And now we're gonna move over to transform sorry animator component. 07:31.570 --> 07:34.250 So we're going to use this dot get component function. 07:34.930 --> 07:37.810 Not sorry this is not the function. 07:38.210 --> 07:40.930 Or you can simply say uh sorry. 07:40.970 --> 07:43.490 It's uh basically use method group. 07:43.490 --> 07:46.810 So you can see uh what what basically is this. 07:47.090 --> 07:53.210 So over here what we need to do, we need to pass the component that we're looking for. 07:53.210 --> 07:56.590 So the component we're looking for is a animator component. 07:56.590 --> 07:57.990 So firstly, what are we doing. 07:57.990 --> 08:00.710 We just moving over to this hard GameObject first. 08:00.710 --> 08:04.230 So collision dot GameObject basically means the hard GameObject. 08:04.230 --> 08:06.910 And after that we just moving over to transform. 08:06.910 --> 08:12.310 So firstly we just moving over to this hard GameObject, then this transform component of this hard 08:12.310 --> 08:13.070 GameObject. 08:13.070 --> 08:19.510 And by this transform we just accessing the child of this hard GameObject, which is hard sprite as 08:19.510 --> 08:20.270 you can see. 08:20.310 --> 08:25.990 And after that what we're doing, we're just going over to this sprite and then we just moving uh, 08:26.030 --> 08:30.990 we basically just getting this animator component, as you can see in the inspector. 08:30.990 --> 08:34.790 So in this arrow we need to pass the component that we're looking for. 08:34.830 --> 08:38.350 So we're going to pass animator component animator component. 08:38.350 --> 08:40.030 And we're going to make first bracket. 08:40.030 --> 08:45.910 And now we're going to use dot set trigger function in order to trigger that collide parameter. 08:45.910 --> 08:48.310 So we're going to use this set trigger function. 08:48.310 --> 08:53.950 And this sorry and uh dot set trigger function. 08:53.950 --> 08:59.600 And this trigger function in the first bracket in basically the first bracket is in quotation. 08:59.600 --> 09:04.600 It's going to take the parameter name or the parameter that you want to track a trigger. 09:04.600 --> 09:07.080 So we using this trigger function basically. 09:07.120 --> 09:07.560 Why. 09:07.720 --> 09:13.920 Because this parameter in animator tab we can see this is a trigger parameter. 09:13.920 --> 09:16.760 So that's why we need to use this trigger function. 09:16.760 --> 09:17.760 And this bracket. 09:17.760 --> 09:19.960 It's going to take the parameter name. 09:19.960 --> 09:23.440 So make sure you type quotation and spell it correct. 09:23.440 --> 09:26.040 Basically you need to pass the parameter name. 09:26.040 --> 09:27.680 So in my case collide. 09:27.680 --> 09:30.000 And make sure you spelling it correct. 09:30.000 --> 09:32.760 And you can check that by moving over to unity. 09:32.920 --> 09:34.800 And in animator tab you can check. 09:34.800 --> 09:41.120 So I can see the C is capitalized and all other letter is small letters. 09:41.120 --> 09:44.000 So make sure you just type spell it correct. 09:44.000 --> 09:46.800 And after that we're going to close that up with semicolon. 09:46.800 --> 09:50.320 So firstly we're going to collision dot GameObject basically means heart. 09:50.320 --> 09:52.240 And then going over to transform. 09:52.240 --> 09:57.420 And by this transform which is going over to the first tile and then we're just getting the animator 09:57.420 --> 09:58.180 component. 09:58.180 --> 10:00.820 Then we're just triggering the collide parameter. 10:00.820 --> 10:06.340 So basically we're moving over to this hard GameObject first and this hard, uh, GameObject transform, 10:06.340 --> 10:11.820 which is accessing the first tile or which is moving over to this sprite game object, or the first 10:11.820 --> 10:13.580 child of this hard GameObject. 10:13.580 --> 10:19.980 And after that, we're just getting this animator component, as you can see in the code over here. 10:20.300 --> 10:23.340 Basically we're just going over to this animator component. 10:23.340 --> 10:27.380 And by this animator component we're just triggering this collide parameter. 10:27.420 --> 10:29.540 You can see in the animator tab. 10:29.540 --> 10:34.780 And we can also notice in our code over here which is triggering the collide parameter. 10:34.780 --> 10:37.860 So I'm going to press down Ctrl S to save my script. 10:37.900 --> 10:39.780 And let's move to unity by now. 10:39.780 --> 10:43.860 And let's have a look on this if it's perfectly working or not. 10:43.860 --> 10:45.780 So we're going to take a look on it. 10:53.020 --> 10:59.870 So just wait for to compile and once it's done, we are ready to play our game and we will see our max 10:59.870 --> 11:02.550 health just going to increase by one unit. 11:03.190 --> 11:08.830 And I'm going to drag away my enemy a little bit further away for testing purposes now. 11:08.990 --> 11:12.030 So I'm going to select my enemy two GameObject in the hierarchy. 11:12.030 --> 11:18.830 And I'm going to drag it a little bit far away from my player GameObject something uh, somewhere over 11:18.830 --> 11:19.270 here. 11:19.270 --> 11:20.870 And this seems pretty much fine. 11:21.350 --> 11:27.550 And if I select my player game object in the inspect hierarchy in the Inspector, we can see underneath 11:27.550 --> 11:29.750 our player skip max health is five. 11:29.750 --> 11:34.550 So once we collect this one or collide with this hurt, we're going to see this max health just going 11:34.550 --> 11:36.710 to increase by one unit. 11:36.710 --> 11:38.910 So let's click on this play button in the top. 11:39.230 --> 11:43.030 And we're using plus equal sign in order to uh add. 11:43.030 --> 11:49.230 So you you you just do that uh plus equal one which just gonna increase. 11:49.230 --> 11:57.240 So let's collect this heart game object And as soon as we collect it, as you can see, it just splits 11:57.240 --> 11:57.880 the heart. 11:57.920 --> 11:58.960 Animation clip. 11:59.120 --> 12:02.560 And after that we can see the max health of our player. 12:02.560 --> 12:06.720 So I'm going to click on this pause button in the top in order to pause my game. 12:06.880 --> 12:10.440 And we can see our player Max health is now six. 12:10.440 --> 12:12.720 So basically that is working fine. 12:12.720 --> 12:19.760 But the problem is that if we move over to hierarchy and if we just take a look, we can still see the 12:19.760 --> 12:25.280 hard game object is laying around in the scene view as well as in the hierarchy. 12:25.280 --> 12:31.240 So after collecting this, what we basically need to do, we need to destroy this hard game object right 12:31.240 --> 12:33.200 away because we collect it. 12:33.200 --> 12:39.000 But uh, instead of destroying this hard game object right away, what are we going to do? 12:39.040 --> 12:41.920 We're gonna destroy it after some period of time. 12:41.960 --> 12:47.320 Basically, uh, once we played the collected animation clip 100%. 12:47.360 --> 12:51.520 After that amount of time, we're gonna destroy our hard game object. 12:51.520 --> 12:53.780 We're not gonna destroy it right away. 12:53.940 --> 12:58.700 So firstly, we need to play the hard collected animation clip as basically it's just playing. 12:58.700 --> 13:01.940 It's going up and over time it's just fading out. 13:01.940 --> 13:04.060 So we're going to play that animation clip. 13:04.060 --> 13:09.140 And after completing that animation clip of that hard game object, we're going to destroy that. 13:09.140 --> 13:10.820 So let's get out of play mode. 13:10.980 --> 13:15.780 And if I select my hard GameObject in the hierarchy, then move over to animation tab. 13:16.340 --> 13:23.180 Uh, sorry, we need to select the child because the we created the animation clip a child of this hard 13:23.180 --> 13:23.660 game object. 13:23.660 --> 13:26.740 So we're going to select our hard sprite or the child game object. 13:26.900 --> 13:32.580 And if we move over to animation tab and click over here and I'm going to choose the hard collected. 13:32.580 --> 13:36.860 And we can see this animation we completing 60 frame. 13:36.860 --> 13:42.260 Or you can simply say one second which is completing the whole uh hard game object. 13:42.260 --> 13:48.140 So sorry, not whole uh, in one second we just completing the whole animation clip. 13:48.540 --> 13:50.100 Sorry, not game object. 13:50.300 --> 13:54.390 So we just completing the whole animation clip after one second. 13:54.550 --> 13:58.910 So after this amount of time, we're going to destroy our hard game object. 13:58.910 --> 14:03.470 So it's not going to lay around in the hierarchy as well as in the scene view. 14:03.470 --> 14:04.470 So let's do that. 14:04.470 --> 14:06.070 So we're going to move over to script. 14:06.070 --> 14:09.510 And after playing the animation clip we're going to destroy that. 14:09.510 --> 14:11.510 So we're going to use this destroy function. 14:11.510 --> 14:16.750 And we do know it's going to take as a first argument what game object you want to destroy. 14:16.790 --> 14:19.110 So I'm going to pass this dot game object. 14:19.150 --> 14:19.670 Sorry. 14:19.710 --> 14:21.670 Not going to pass this dot game object. 14:21.910 --> 14:22.910 This dot game object. 14:22.910 --> 14:25.350 Basically it's just referencing itself. 14:25.590 --> 14:27.070 So it's going to be player. 14:27.070 --> 14:29.470 But we don't want to destroy our player. 14:29.470 --> 14:32.070 Instead we're gonna destroy that hard game object. 14:32.070 --> 14:37.190 So we're going to pass this collision dot game object and collision dot game object basically means 14:37.190 --> 14:39.110 the game object we trigger it with. 14:39.110 --> 14:41.470 So we trigger it with this hard game object. 14:41.470 --> 14:45.430 So collision dot GameObject right there gonna be this hard game object. 14:45.750 --> 14:48.430 And you can just close that up with semicolon. 14:48.430 --> 14:50.830 But it will destroy right away. 14:50.830 --> 14:54.680 So that's why as a second argument we're going to specify our time. 14:54.800 --> 14:59.440 And if you just leave like this it's going to destroy the game object right away. 14:59.440 --> 15:01.320 And we don't want to do that. 15:01.320 --> 15:06.840 So that's why as a second argument we're going to pass the time or we're going to specify the time. 15:06.840 --> 15:14.000 So I'm going to put one if why I just put one because uh, in one second I'm just completing the hurt 15:14.000 --> 15:18.800 collected animation clip, which is going up and over time just fading out. 15:18.800 --> 15:22.000 So once again, it just completing the whole animation clip. 15:22.000 --> 15:27.200 So that's why as a second argument I just pass one f, which basically means one second. 15:27.240 --> 15:31.520 Now I'm going to press down Ctrl s to save my script and let's move to unity. 15:31.840 --> 15:36.720 So after one second you will see that hurt game object will also be destroyed. 15:36.760 --> 15:42.520 After collecting that firstly we collecting and we increasing our Maxwell. 15:42.520 --> 15:46.080 And after that once again we just destroying it right away. 15:46.080 --> 15:52.860 So let's click on this play button in the top in order to take a look on this and let's, uh, see what's 15:52.860 --> 15:53.820 really happening. 15:56.180 --> 15:57.860 So just wait for to compile. 15:59.540 --> 16:05.780 So if we get closer to this hard game object, we can see we increase our health. 16:06.020 --> 16:08.300 And the hard game object also get destroyed. 16:08.300 --> 16:12.060 So I'm going to click on this pause button in the top to pause my game. 16:12.060 --> 16:18.900 And if we move over to hierarchy, I'm not able to see any hard game object laying around in this hierarchy 16:18.940 --> 16:20.540 as well as in the scene view. 16:20.900 --> 16:22.140 Uh, as you can see. 16:22.140 --> 16:28.100 So basically means after one second we're just destroying, uh, right away after, uh, after one second, 16:28.100 --> 16:28.780 basically. 16:28.940 --> 16:30.500 And that is pretty cool. 16:30.500 --> 16:32.980 I hope you get the idea that how you can do it. 16:32.980 --> 16:37.260 So I'm going to click on this play button in the top in order to get out of play mode. 16:38.700 --> 16:40.060 Uh, get out of play mode. 16:40.060 --> 16:46.940 And I can just remove this hard game object from, uh, for now in the you can see in the hierarchy, 16:46.940 --> 16:48.420 but I'm going to leave that. 16:48.420 --> 16:49.420 So let's leave. 16:49.540 --> 16:50.580 Leave it like that.