1 00:00:04,420 --> 00:00:06,220 ‫Hello and welcome back. 2 00:00:06,250 --> 00:00:13,210 ‫Now, we've already created the ability to handle death for the tank and tower, and we saw that this 3 00:00:13,210 --> 00:00:20,200 ‫involved some extra steps with our tank since we accessed the player controller to disable input and 4 00:00:20,200 --> 00:00:22,120 ‫disable showing the mouse cursor. 5 00:00:22,150 --> 00:00:28,270 ‫Now we'd like to have our own custom player controller class so that we can add functionality to it 6 00:00:28,300 --> 00:00:30,210 ‫that will handle this for us. 7 00:00:30,220 --> 00:00:36,010 ‫And then we'd like to create a blueprint based on this class so that we can access some of the exposed 8 00:00:36,010 --> 00:00:42,580 ‫variables on the player controller such as which mouse cursor to show once we actually start showing 9 00:00:42,580 --> 00:00:43,630 ‫the mouse cursor. 10 00:00:43,660 --> 00:00:50,020 ‫So we're going to create a player controller class and add enabling and disabling input functionality. 11 00:00:50,020 --> 00:00:54,490 ‫And then we're going to create a blueprint and set the mouse cursor type in blueprints. 12 00:00:54,520 --> 00:00:58,030 ‫Now creating this class is something you know how to do. 13 00:00:58,030 --> 00:01:04,480 ‫So you're going to create a player controller class for your challenge, create a new C++ class, and 14 00:01:04,480 --> 00:01:07,300 ‫choose player controller as the parent class. 15 00:01:07,300 --> 00:01:11,800 ‫Call this tune tanks, player controller or something appropriate like that. 16 00:01:11,800 --> 00:01:15,760 ‫And once you're done, create a blueprint based on this class. 17 00:01:15,760 --> 00:01:21,340 ‫Now, once you have the blueprint, you can assign this as the default player controller in the game 18 00:01:21,340 --> 00:01:22,330 ‫mode blueprint. 19 00:01:22,360 --> 00:01:25,180 ‫Do this in the game mode, blueprint itself. 20 00:01:25,360 --> 00:01:30,280 ‫Pause the video and create the player controller class for the tank now. 21 00:01:33,230 --> 00:01:33,680 ‫Okay. 22 00:01:33,680 --> 00:01:34,790 ‫So I'm back in the editor. 23 00:01:34,790 --> 00:01:41,210 ‫I'm going to right click click new C++ class and scroll down and I'll see that player controller is 24 00:01:41,210 --> 00:01:42,170 ‫an option here. 25 00:01:42,170 --> 00:01:48,320 ‫So I'm going to select player controller and name my new player controller tune tanks. 26 00:01:49,110 --> 00:01:53,190 ‫Player, controller and click create class. 27 00:01:53,190 --> 00:01:56,790 ‫And here I have my new player controller class. 28 00:01:56,820 --> 00:02:00,030 ‫Now the next step is to create a blueprint based on this. 29 00:02:00,030 --> 00:02:06,060 ‫So I'm back in the editor and I didn't tell you to do this, but I'm going to create a new folder here 30 00:02:06,060 --> 00:02:09,360 ‫in my blueprints folder called Player Controller. 31 00:02:10,440 --> 00:02:15,480 ‫And if you'd like the same folder structure, you can create this folder now if you haven't already 32 00:02:15,480 --> 00:02:19,170 ‫done so and then move your player controller blueprint into this. 33 00:02:19,170 --> 00:02:23,610 ‫If you don't know how to move a blueprint from one folder to another, it's quite simple. 34 00:02:23,640 --> 00:02:30,810 ‫You go to the folder that contains the blueprint, click and drag into the correct folder and click 35 00:02:30,810 --> 00:02:31,740 ‫move here. 36 00:02:31,890 --> 00:02:36,900 ‫Now, I don't want to move my projectile to this folder, so I'm just going to click here in the content 37 00:02:36,900 --> 00:02:38,760 ‫browser to cancel that action. 38 00:02:38,760 --> 00:02:41,370 ‫So now I have a player controller folder. 39 00:02:41,370 --> 00:02:47,760 ‫I'm going to right click and click Blueprint Class and in this search I'm going to look for toon tanks, 40 00:02:47,760 --> 00:02:51,460 ‫player controller and select that class and click Select. 41 00:02:51,480 --> 00:02:57,180 ‫Now I can call this beep underscore toon tanks player controller. 42 00:02:57,390 --> 00:02:59,070 ‫So I now have a player controller. 43 00:02:59,070 --> 00:03:02,100 ‫Now I need to set this as the default player controller. 44 00:03:02,100 --> 00:03:08,220 ‫So I'm going to go to the game mode folder, open beep, tune tanks, game mode and open the full blueprint. 45 00:03:08,220 --> 00:03:11,670 ‫Editor And here I see player controller class. 46 00:03:11,940 --> 00:03:18,690 ‫I'm going to click the dropdown and select BP tune tanks, player controller and compile and save and 47 00:03:18,690 --> 00:03:19,950 ‫close out of that. 48 00:03:19,950 --> 00:03:23,250 ‫So now we have the custom player controller class. 49 00:03:23,250 --> 00:03:25,680 ‫We're ready to add some functionality to this. 50 00:03:25,680 --> 00:03:31,110 ‫So what I'd like is a function here that can set the player enabled state, whether or not the player 51 00:03:31,110 --> 00:03:34,890 ‫is enabled to add input that will move the tank. 52 00:03:34,890 --> 00:03:39,690 ‫Now I plan on calling this from the game mode when the actor dies. 53 00:03:39,690 --> 00:03:44,940 ‫So I'm going to make a public section here and the function is going to be void. 54 00:03:44,940 --> 00:03:55,020 ‫And I'm simply going to call this set player enabled state, which can take a boolean called B player 55 00:03:55,020 --> 00:03:55,950 ‫enabled. 56 00:03:56,550 --> 00:04:01,830 ‫This way, if we call this function, we can either pass in true if we'd like the player to be enabled 57 00:04:01,830 --> 00:04:04,620 ‫or false if we'd like it to be disabled. 58 00:04:04,620 --> 00:04:09,090 ‫So let's implement this function in tune tanks, player, controller. 59 00:04:09,360 --> 00:04:14,100 ‫CP So here's my function and of course I need the class name here. 60 00:04:14,100 --> 00:04:20,370 ‫So it's going to be a tune tanks, player, controller, and there's the scope resolution operator. 61 00:04:20,370 --> 00:04:22,860 ‫Now, this function is going to be quite simple. 62 00:04:22,860 --> 00:04:28,320 ‫It's going to check the value of B player enabled, and we can do that with a simple if check. 63 00:04:28,320 --> 00:04:35,460 ‫So I'm going to say if B player enabled and I'd like to access the pawn and enable or disable input 64 00:04:35,460 --> 00:04:41,790 ‫and the way to access the pawn that this player controller is possessing is to use the function, get 65 00:04:41,790 --> 00:04:42,390 ‫pawn. 66 00:04:42,390 --> 00:04:47,520 ‫This returns and a pawn and the pawn class has the function. 67 00:04:47,520 --> 00:04:55,860 ‫Enable input and enable input as we've seen requires a player controller so we can pass in this. 68 00:04:56,190 --> 00:05:02,490 ‫Now I'm getting the red squiggles because we need to include that pawn class type and we can easily 69 00:05:02,490 --> 00:05:09,090 ‫see the include for the pawn by either going to the unreal engine documentation for a pawn, or we could 70 00:05:09,090 --> 00:05:13,890 ‫simply go to our base pawn class which inherits from a pawn. 71 00:05:14,070 --> 00:05:19,890 ‫And because it inherits from a pawn, we've seen that it needs to include the pawn header there so I 72 00:05:19,890 --> 00:05:23,430 ‫can copy that include it's game framework, a slash pawn. 73 00:05:24,150 --> 00:05:26,850 ‫So back in tune tanks player controller. 74 00:05:26,850 --> 00:05:30,900 ‫I can paste that include here at the top to get rid of those red squiggles. 75 00:05:30,900 --> 00:05:37,470 ‫So this takes care of the case when B player enabled is true, but we also need an LS case here. 76 00:05:38,160 --> 00:05:45,210 ‫In the LS case we're going to call get pawn and there's a function just like enable input that is designed 77 00:05:45,210 --> 00:05:50,580 ‫to disable input and it's called, as you might guess, disable input. 78 00:05:50,580 --> 00:05:55,020 ‫And this also requires a player controller for which we will pass in this. 79 00:05:55,020 --> 00:06:00,480 ‫Now the player controller has that be show mouse cursor and we're going to set that as well. 80 00:06:00,480 --> 00:06:04,500 ‫And we'd like to set it based on whether or not the player should be enabled. 81 00:06:04,500 --> 00:06:10,950 ‫So whatever the Boolean value of B player enabled, we're going to set B show mouse cursor to that value. 82 00:06:10,950 --> 00:06:18,090 ‫So we're going to say B sho mouse cursor equals B player enabled. 83 00:06:18,360 --> 00:06:20,730 ‫Now we haven't shown the mouse cursor yet. 84 00:06:20,730 --> 00:06:21,990 ‫We're going to get to that part. 85 00:06:21,990 --> 00:06:27,210 ‫We'd actually like to see the mouse cursor while we're playing the game so we know where our tank is 86 00:06:27,210 --> 00:06:27,960 ‫aiming. 87 00:06:27,960 --> 00:06:29,490 ‫So we'll get to that soon. 88 00:06:29,490 --> 00:06:35,490 ‫But for now we have this nice function in the player controller and we'd like to call this function 89 00:06:35,490 --> 00:06:38,550 ‫from the game mode now to show you what I mean. 90 00:06:38,550 --> 00:06:44,610 ‫I'm going back to game mode and here's the actor died function and you'll see that we're disabling input 91 00:06:44,610 --> 00:06:47,070 ‫and we're setting b show mouse cursor here. 92 00:06:47,070 --> 00:06:48,450 ‫So the reason I'd like to have a. 93 00:06:48,540 --> 00:06:54,420 ‫Function on the player controller so that we can simply call that function passing in a boolean value. 94 00:06:54,450 --> 00:07:00,600 ‫In this case, we'd pass in false so that we'd get that disable input function called and B so mouse 95 00:07:00,600 --> 00:07:02,570 ‫cursor would be set to false. 96 00:07:02,580 --> 00:07:08,880 ‫So we can simply call that function here now rather than calling tank get player controller which returns 97 00:07:08,880 --> 00:07:09,960 ‫a player controller. 98 00:07:10,050 --> 00:07:15,590 ‫I'd like to have a pointer variable that allows us to access that player controller. 99 00:07:15,600 --> 00:07:20,560 ‫So here in tune tanks game modes, I'm going to add a private variable. 100 00:07:20,580 --> 00:07:27,990 ‫I'm going to forward declare it and it's going to be of type A tune tanks, player, controller, that's 101 00:07:27,990 --> 00:07:28,800 ‫a pointer. 102 00:07:28,800 --> 00:07:35,640 ‫And I'm going to call this tune Tank's Player Controller and I can set this here in tune tanks game 103 00:07:35,640 --> 00:07:39,500 ‫mode and begin play using gameplay statics. 104 00:07:39,510 --> 00:07:45,360 ‫Now if you are wondering if game play statics had a get player controller function, you were right. 105 00:07:45,570 --> 00:07:51,630 ‫This is one of those handy static functions that requires a world context object and a player index 106 00:07:51,630 --> 00:07:58,020 ‫so we can go ahead and copy the include for gameplay statics and call this here in Begin Play. 107 00:07:58,020 --> 00:08:02,970 ‫So I see at the top here, I already have gameplay statics, that's because we're using it already here 108 00:08:02,970 --> 00:08:05,310 ‫and begin play to call get player --. 109 00:08:05,310 --> 00:08:09,350 ‫We're going to do the same thing here to set the player controller pointer. 110 00:08:09,360 --> 00:08:11,400 ‫Now this is something you should know how to do. 111 00:08:11,400 --> 00:08:16,680 ‫So why don't you pause the video and do a little mini challenge here and just set the value of tune 112 00:08:16,680 --> 00:08:18,060 ‫tanks, player controller. 113 00:08:20,990 --> 00:08:21,470 ‫Okay. 114 00:08:21,470 --> 00:08:28,760 ‫So we're going to say tune tanks, player, controller, and we're setting it equal to the result of 115 00:08:28,760 --> 00:08:37,550 ‫you gameplay statics get player controller and we know the world context object can be this and the 116 00:08:37,550 --> 00:08:40,160 ‫player index is not nine but zero. 117 00:08:40,160 --> 00:08:45,920 ‫And of course we know that this returns a player controller and not a tune tanks player controller. 118 00:08:45,920 --> 00:08:49,460 ‫So just like we did with Tank here, we're going to cast. 119 00:08:49,460 --> 00:08:58,970 ‫So I'm going to say cast to a tune tanks player controller and we're casting the result of get player 120 00:08:58,970 --> 00:08:59,720 ‫controller. 121 00:08:59,930 --> 00:09:05,270 ‫So now after Begin Play, we will have the tune tanks, player controller. 122 00:09:05,270 --> 00:09:11,870 ‫And now we can come up here and instead of getting the player controller using get player controller 123 00:09:11,870 --> 00:09:19,430 ‫directly from the tank, we can check to make sure our variable tune tanks player controller is valid 124 00:09:19,430 --> 00:09:21,830 ‫and then we can call that function we made. 125 00:09:21,830 --> 00:09:23,090 ‫Let's go back and look at it. 126 00:09:23,090 --> 00:09:30,620 ‫It's called set player enabled state and here in the game mode we'd like to disable input and stop showing 127 00:09:30,620 --> 00:09:33,650 ‫the cursor, which means we're going to pass in false for this. 128 00:09:33,650 --> 00:09:43,490 ‫So we're going to say tune tanks, player, controller, set player enabled state and we're passing 129 00:09:43,490 --> 00:09:49,340 ‫in false for this and we're using tune tanks, player controller, which means we need to include tune 130 00:09:49,340 --> 00:09:50,300 ‫tanks, player controller. 131 00:09:50,300 --> 00:09:56,570 ‫So here at the top we're going to include tune tanks, player controller. 132 00:09:57,620 --> 00:10:00,890 ‫And now we have this type defined OC. 133 00:10:00,890 --> 00:10:02,630 ‫Let's go ahead and compile this. 134 00:10:02,780 --> 00:10:08,630 ‫And the last thing we'll do before we wrap this up is go into our player controller blueprint and I'd 135 00:10:08,630 --> 00:10:15,320 ‫like you to scroll down to the mouse interface section and you'll see that it says Default Mouse Cursor. 136 00:10:15,350 --> 00:10:19,730 ‫Now we can click the dropdown and there are a number of different cursors to choose from. 137 00:10:19,730 --> 00:10:21,770 ‫And I'm going to choose Crosshairs. 138 00:10:21,950 --> 00:10:27,830 ‫Now, we're not showing the mouse cursor yet, but once we start the game we're going to show the cursor. 139 00:10:27,830 --> 00:10:33,920 ‫And when we do, I like it to be crosshairs instead of the default white arrow that we always see when 140 00:10:33,920 --> 00:10:35,060 ‫we look at the mouse cursor. 141 00:10:35,060 --> 00:10:41,330 ‫So set default mouse cursor to crosshairs and we'll be able to see those crosshairs once we actually 142 00:10:41,330 --> 00:10:43,040 ‫enable the mouse cursor. 143 00:10:43,040 --> 00:10:50,540 ‫So in summary, we created a custom player controller class and we're using that to enable or disable 144 00:10:50,540 --> 00:10:53,420 ‫input with a function that we placed on that class. 145 00:10:53,420 --> 00:10:59,420 ‫And we're also using that function to show the mouse cursor or hide the mouse cursor based on the Boolean 146 00:10:59,420 --> 00:11:00,290 ‫passed in. 147 00:11:00,290 --> 00:11:06,350 ‫And in the blueprint that we created, we set the mouse cursor type and we're going to see very soon 148 00:11:06,350 --> 00:11:12,140 ‫what that crosshairs mouse cursor looks like when we start showing the mouse cursor when the game starts. 149 00:11:12,140 --> 00:11:12,980 ‫So great job. 150 00:11:12,980 --> 00:11:18,620 ‫We now have this player controller and we're ready to continue implementing game functionality. 151 00:11:18,620 --> 00:11:20,810 ‫So I'll see you in the next video.