WEBVTT

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Let's say that active this game over UI through our code.

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So we're going to set that.

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So let's select our player GameObject in the hierarchy.

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And let's open up the player script quickly by double clicking on it.

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So what we basically need if we move over to unity underneath our canvas game object, we can see in

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the hierarchy we have game over UI.

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So we want this to be active.

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But when we shoot, once our player GameObject loses all of his health, then we're gonna active this

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game over here by.

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Basically, if we select our game over UI GameObject underneath our canvas, then move over to Inspector,

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we can check.

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Basically checking means we just activating that.

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And if we just uncheck, we mean we basically means we just deactivating that.

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So we need a reference of this game over UI GameObject, basically this whole game object.

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Then we can just set that to be activate.

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Or we just want to enable or disable depending upon if the player game object is alive or not.

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So let's select our player game object in the hierarchy, and we're gonna open up our player skip by

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double clicking on it.

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And let's go to top of our class.

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Uh, over here in the bottom I'm going to do uh, so let's make a serialized file.

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So let's make a serialized field.

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Serialized field, private private.

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And that came over by game object itself, a whole game object.

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So we're going to type game object, uh, the game object that we're looking for, basically that game

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over game object itself, a whole game object.

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So that's why we need to type the game object, uh, type.

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And we can simply call this one something like game over UI.

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And let's close that up.

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Semicolon.

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And I'm gonna press down Ctrl s to save our script.

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And let's move over to unity.

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So underneath our player we're gonna see another field just gonna appear.

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And by by default, we just named it Game Over UI.

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So just wait.

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So as soon as our player skip gates compile underneath our player skip in the bottom, we can see Game

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Over UI and it says none game object.

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So basically what we have to do over here we need to select our game over UI game object and drag it

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into that slot from the hierarchy.

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Now we can see we have the game over UI, game object prefab or the game object, and we are ready to

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activate or enable that.

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So let's open up our player.

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Skip quickly one more time, and we're going to scroll down to the bottom where we dying.

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So over here as you can see we're calling the type function and die function.

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Just doing the rest thing like setting is game active to false showing up explosion effect, all of

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these things.

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So we also want to activate that game over UI as well.

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So what we will do, we will go to Game Over UI and we're going to use this set active function.

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And this set active function in brackets.

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It's going to take the value.

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So if you just pass right over here true.

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So it's basically means that's gonna be activate right away means we are if we select our game over

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UI game object and check this in Inspector.

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So set active true basically means we're just activating.

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And if you just pass false means we just unchecking or deactivating our game over UI.

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But we do want we just want to activate.

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So that's why in these brackets I'm going to pass the true value.

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So we will pass true value.

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And let's close that up with semicolon.

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So I'm going to pass through.

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Let's close that up with semicolon.

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So basically what we're doing we're just going over to this game over UI game object in the hierarchy.

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We can see.

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And then we just activating or setting active to true means I just checking you can simply say and now

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we're going to press down Ctrl S to save our skin.

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Now let's move over to unity.

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So you will see, uh, as soon as our player GameObject loses all of his health, then we're calling

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the die function.

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And inside that die function, we just activating that game over UI and make sure you just drag the

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reference in your player.

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Skip, uh, have just take a look in Inspector, and we are ready to play our game.

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So let's click on this play button in the top to play our game.

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And let's have a look on this.

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So as soon as this player GameObject Conor loses all of his health, you will see this, uh, the game

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over.

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Just gonna activate right away.

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So just wait for it to, uh, take damage from this enemy GameObject.

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And we're going to take this, uh, take, uh, enemy uh, sorry damage from this enemy game object.

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So let's see.

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And we can see as soon as our player GameObject object as this game over us gets activate and if we

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click on this retry button, we can see this button doing nothing currently.

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So we need to hook this button with some certain function.

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So if I select my retry button.

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So if I move to hierarchy then game over UI game object underneath my canvas.

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And then select this retry button.

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Then move over to Inspector.

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Scroll down.

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We can see a button component is added to this button.

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This retry button.

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So over here what we're gonna do if we scroll down a bit we can see on click and it says list is empty.

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Basically we can just call a function over here as well.

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So as soon as we're gonna click this retry button and we're going to call a function over here.

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And inside that function we're going to do the thing that we really need to do.

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Uh, like uh, like loading up the levels in one more time so we can call the function on click basically

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underneath our button over here in the inspector.

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As you can see.

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So we can call a function.

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So let's get out of play mode.

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And we're going to create another script in order to uh, in order to click on that retry button.

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Basically as soon as we're gonna, uh, basically gonna click on that retry button, we just want to,

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uh, load up the level one more time.

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So we're going to create a script for that.

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So make sure you just go to Project App then assets and head over to Script Folder.

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Let's right click there then create and then Monobehaviour script and name that script to something

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like Scene Management.

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Don't name it to something like Scene Manager.

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Instead name it to something else.

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You can name it to scene management or you can say scene, uh, load or some something like that.

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So I already have created a scene manager.

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Screen scene manager.

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Uh, sorry.

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I just name it to scene manager.

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It should not be scene manager.

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And instead we're gonna create a scene management because it's gonna to give us an error.

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So that's why.

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So we're going to right click on this script folder one more time.

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Let's click go to create in the top.

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And then Monobehaviour script.

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And I'm going to name this script to something like Scene management not scene manager.

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Don't name it to scene manager, name it to something else.

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So I'm going to call it scene Management.

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And let's hit enter.

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And we're going to double click this script to open it up in Visual Studio.

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And we need to attach this script to our game object.

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So what I'm going to do I'm going to create a separate, uh, game object for this scene management

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script.

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And I'm going to attach this script to that game object.

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So just wait for to compile and run.

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Once you are done, we are ready to do that.

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So let's go to hierarchy.

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Right click or hit this plus icon.

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Let's create an empty game object.

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And I'm going to name this game object to as the name of our script.

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So I'm going to call it Scene Management.

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And let's go to transform.

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Right click and reset the transform and I'm going to select my scene management script.

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And let's drag it over to this Add Component section.

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And I'm going to drag my Scene Management GameObject in the top of my hierarchy so I can see all the

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time.

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And let's open up the scene management script by double clicking on it.

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And I'm gonna remove this update and start function we don't need.

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And we're going to work with scene.

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So make sure you, you just go to top of your class and include this namespace it call using Unity Engine,

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Unity engine, dot scene management, scene management.

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And then close that up with semicolon.

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So what we have to include this namespace in top of our class because we're gonna work with scenes or

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levels.

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So that's why we need to include this namespace in top of your class.

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So make sure you just do that.

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And we are ready to create our functions.

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So we're going to create two functions.

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One for just gonna just gonna be for this retry button.

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And the second button.

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Uh second one gonna for this retry button.

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And the second function we're gonna make for this menu button.

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So let's go to Skip now and make sure you make this function public.

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Why?

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Because we're going to call this function through our button.

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Basically whenever we're going to click on this button I just want to call this function.

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So that's why.

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So we're going to mark as a public function.

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And for function we're going to type void.

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And I'm going to name this function as something like retry button for my retry function.

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So I'm going to call it retry.

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Instead.

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Let's make first bracket and some curly brackets.

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And I'm going to put it for line space or from the left side.

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So what we want to do inside this function we just want to load up the scene.

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So in order to load up a scene or the level what you have to do, you need to include this function.

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It's called scene manager dot load scene function, load scene function.

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And we're not getting.

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So I'm gonna what I'm going to do, I'm going to move over to my unity because I already created a scene

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manager script, as you can see.

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So we need to delete that.

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So that's why it just not happening.

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So make sure you just select the scene manager and just delete.

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I don't name that.

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Uh, basically name a script something like scene management.

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Don't name it something like scene manager.

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So that's why.

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Or you can simply call level manager as well that script.

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So I have already created a scene manager script.

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And I'm going to delete that because I created a second script called Scene Management as you can see.

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So I'm going to select my scene manager script and I'm going to delete that because it just come are

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conflicting the error.

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So just right click that and then click on delete in the top you can see.

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So delete that.

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Now it should be fine.

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So make the script name scene management.

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Don't name it scene manager.

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And you can name it something else.

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And that is fine.

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Just don't name it something like Scene Manager because we need to use that function.

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Now it's done.

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If we move over to script Scrape, and in order to load up a scene, we need to use the scene manager

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dot load scene function.

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Now we can say and this function in brackets is going to take the same name in quotation or a.

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You need to pass the bill index of it.

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So how you can see the name of the scene and the built in build index of it.

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So move over to unity.

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In the hierarchy top you can see the name of the scene.

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We can see example scene, but we're not able to see the build index of it uh of the scene.

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So what you really have to do, you need, you need to move over to this top left file.

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So just click there and then click on this build profiles.

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In the bottom you can see and uh we and as soon as we uh, we're going to click on this open scene list.

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And now we can see the name of the scene is sample scene.

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And the build index.

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We can see in the right section which is zero.

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So you can uh, what you basically have to do, you will be windows or something like that.

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So just click on this open scene list and you can see the name of the scene as well as the index of

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it.

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So the name of the scene we can see in the left side, which is sample scene, and the index of it in

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the right section which is zero.

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So I'm going to cut this tab by now and let's move over to script.

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So in quotation what we simply do, what we simply can do.

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We can simply pass name of the scene which is sample.

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So sample scene.

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And let's close that up with semicolon or what you can simply do over here.

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You can simply pass the bill index without quotation.

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Uh so the index is zero.

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But I'm going to pass the name of the scene in my in quotation in between this quotation, which is

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sample scene.

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So I'm going to pass my sample scene and let's close that up with semicolon.

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And let's move over to unity.

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So this scene manager dot load scene function it's gonna load up the scene.

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And in brackets it's going to take the name of the scene.

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So we also need to call this retry button.

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Uh sorry retry function and retry function.

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Just going to do these things which are just going to load up the scene.

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So let's move over to unity.

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And I'm going to select my retry button underneath my game Over UI game object.

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Let's go to Inspector.

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Scroll down and scroll down to this button component.

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And in the on click and it says list is empty.

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So just click there and over here what you have to do.

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You need to drag the game object in which game object the script is attached.

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So in my case I attach the scene management script to this scene management game object.

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So I'm going to select that GameObject and drag it over to this slot.

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And it says no function as you can see.

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So just click there and we're going to move over to scene Management script or scene Management class

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as you can see.

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And we're going to call the retry function.

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So basically what we're doing we're just going over to this scene management and it says no function.

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So just click there.

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And we do no in that scene management game object the scene management script is attached.

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So that's why we are able to see the scene management class over here or the scene management screen.

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And uh, and we can see retry function as well as we created inside scene management script or scene

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management class.

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And we just made that retry function public.

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So that's why we are able to see over here.

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So I'm going to choose that function.

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So now if we just click on this retry button, as soon as we click on this retry button you will see

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that retry function just going to call.

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And what we what we have done in this retry function we just loading up the scene in which scene we

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are currently in.

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And let's go to unity now.

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And let's click on this play button in the top in order to play the game.

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So just wait for to compile and you're gonna see that.

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So as soon as we're gonna lose health, uh, a health app, basically after taking damage, you will

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see this player game object just gonna die right away.

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And after that, that came on, came over.

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You are just going to be activate.

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Activate.

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And we have two buttons or two option to do in in that game over.

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So just wait.

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And now if I just click on this retry button, as you can see, as soon as we click on that retry button,

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we just loading up the scene in which scene we are currently in.

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One more time we're going to get out of play mode.

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And instead of doing that, you can do that thing as well.

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So let's go to script instead of passing the name of the scene in quotation or the bill index of it,

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you can use these things as well.

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It's called scene manager, scene manager dot get active scene and make first packet.

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And then you have to use this build index.

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So what basically this means scene manager dot get active scene basically means the scene in which scene

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we are in.

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So if we move over to unity we can see in hierarchy we are in this sample scene.

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So the scene manager Dot get active scene right over here.

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Just going to be the sample scene.

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And then what we're doing, we're just accessing the build index.

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And we know the index of this of this sample scene is zero.

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So basically we're just loading up the scene in which scene we are currently in.

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So scene manager Dot get active scene basically means the scene we are currently in.

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So we are currently in this sample scene.

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So then what we're doing we just accessing the index of it means we just loading up the samples in one

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more time.

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So this scene manager Dot get active scene means the scene which we are currently in.

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And then we just accessing the index of it and we're just loading loading that up I'm really apologize.

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Uh, that bus just making noises I'm really apologize for it.

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So we're just loading up the scene, which scene we are currently in.

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So you can just pass this as well once you just retrying.

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So let's go to unity and let's have a look.

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So I'm going to press down Ctrl s on my keyboard to save my script.

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And let's go to unity.

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So once we're clicking on that retry button then what we're doing we're just moving over to this scene

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management game object and then scene management script.

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And then we're just calling the retry function once we click on that retry button.

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So let's go to unity one more time.

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And if I just click on this play button in the top, you will see as soon as we're going to click on

17:11.090 --> 17:17.890
that retry button, the the scene which we are currently in, it's going to load up one more time because

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we're calling that function.

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So just uh, let's wait to take damage from that enemy game object and you will see that.

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So just wait, uh, to take damage from this enemy game object.

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And now we're just taking damage from this enemy game object.

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And this seems fine.

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And now we can see game over UI just gets activate.

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And now if I just click on this retry button, that retry function just gonna call.

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And we do know what we have done inside that retry function.

17:50.000 --> 17:56.800
So if I just click on this, as you can see, as soon as we click the scene that we are currently in,

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we just loaded up that one more time.

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And you can see the name of the scene in hierarchy.

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Over here we can see the name of the scene is sample scene and the build index of it zero.

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So I'm going to get out of play mode.

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And now what we have to do if I just activate this game over UI.

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Now we need to work with this menu button.

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So once we click on this menu button I'm going to call the I'm gonna load up the menu scene.

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But we don't have the menu scene yet.

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So I just want to print out a message if it's working fine or not.

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So let's go to Scene Manager manuscript and I'm going to make a second function in the bottom.

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So let's make that function as well public.

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So we can call through a button.

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And for function we're going to type void.

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And we have to name the function.

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So I'm going to call it panel something like that.

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And let's make some curly brackets.

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And, uh, so we don't have the menu scene yet so we can load that up.

18:50.080 --> 18:52.640
So I'm going to print out a message instead.

18:52.640 --> 18:59.640
So printing out a message we're going to type Debug.log in order to print out message and make first

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bracket.

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And in quotation we're going to say something like load menu load menu.

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And let's close that up with semicolon.

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And we're going to press down Ctrl S to save our script.

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And I'm going to move this curly bracket over here.

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And let's press down one more time Ctrl s to save our script.

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And I'm going to hook this menu button or this sorry this menu function with our menu button.

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So as soon as we're going to click on that menu button we're going to call that menu function.

19:26.960 --> 19:32.520
And what menu function is doing is just printing out a message in the console says Load menu.

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So just wait.

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And once it's done we are ready to do that.

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So now we're going to select our menu button underneath our Game Over UI game object.

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So let's select the menu button.

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Let's go to Inspector.

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Scroll down to the bottom button component and we can see on click and it says list is empty.

19:50.030 --> 19:55.070
So let's click there and we're going to drag the game object in which game object the script is sitting

19:55.070 --> 19:56.270
on or attached.

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So in my case scene management.

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So let's drag right there and let's click on this no function.

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Let's go to scene management see class or Skip.

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And we can see the menu function over here because we made it public.

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And we're going to choose this menu function.

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Because once whenever we're going to click on this menu button we just want to call up call that menu

20:17.030 --> 20:17.590
function.

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So.

20:18.390 --> 20:23.790
So as soon as we click on this menu button you will see menu function just going to trigger or just

20:23.790 --> 20:24.550
going to call.

20:24.550 --> 20:29.590
And inside that menu function we just printing out a message in the console says load menu.

20:29.630 --> 20:30.790
As you can see.

20:31.070 --> 20:33.990
And make sure you just go to unity.

20:34.110 --> 20:37.630
And by default I'm gonna deactivate this game over UI.

20:37.670 --> 20:39.870
I don't want this to be activate.

20:39.870 --> 20:46.860
So let's uncheck in the inspector and let's click on this play button in the top to play our game.

20:47.020 --> 20:48.420
And let's have a look.

20:48.420 --> 20:53.780
So whenever as soon as we're going to click on that menu button you will see the message in the console.

20:53.780 --> 20:56.140
Just gonna pop up says Load Menu.

20:56.140 --> 20:58.580
So I'm going to select my console tab in the bottom.

20:58.860 --> 21:02.340
And let's take damage from that enemy game object.

21:02.340 --> 21:04.460
So just wait a little moment.

21:06.740 --> 21:10.700
And we're going to take damage from this enemy game object.

21:12.340 --> 21:14.900
So we're taking damage as you can see.

21:16.940 --> 21:18.660
And now the max is zero.

21:18.660 --> 21:21.700
So this game over UI just gets activated.

21:21.700 --> 21:28.100
And if I just go to click on this menu button, as you can see as soon as we click menu button, uh

21:28.140 --> 21:32.060
or basically click menu button, that menu function, just get call.

21:32.060 --> 21:37.660
And inside that menu function we are just printing out a message in the console we can see load menu.

21:37.660 --> 21:42.620
So as soon as we're going to click on this menu button, that menu function just calling.

21:42.660 --> 21:45.860
And we do know what we have done inside that menu function.

21:45.860 --> 21:50.980
We just printing out this message a load menu in the console as you can see.

21:50.980 --> 21:55.540
So I hope you get the idea that how you can call a function through a button.

21:55.540 --> 22:00.180
So basically you can call the function through a button by going over to button component.

22:00.180 --> 22:05.260
And you need to drag the game object in which game object the script is attached or sitting on.

22:05.300 --> 22:11.180
Then you can just call the function from that script in which script you have done all of these things.

22:11.420 --> 22:12.900
So I'm going to get out of play mode.

22:12.940 --> 22:18.540
I hope you get the idea that how you can do it, or how you can just print up, and we also need to

22:18.540 --> 22:21.820
create the scene as well in order to load that up.

22:22.140 --> 22:28.100
So I'm going to press down control S in my you can say keyboard to save my project.

22:28.100 --> 22:31.140
And I'm going to move over to my Game Over UI game object.

22:31.140 --> 22:32.220
Let's go to overrides.

22:32.220 --> 22:34.420
And I'm going to click on this Apply all.

22:34.580 --> 22:35.540
Now it's fine.

22:35.740 --> 22:39.700
And I'm going to press down one more time Ctrl S to save my project.