1 00:00:04,340 --> 00:00:05,870 ‫Hello and welcome. 2 00:00:05,870 --> 00:00:11,870 ‫In this lecture, we're going to learn about the game mode class in Unreal and we're going to see how 3 00:00:11,870 --> 00:00:15,890 ‫that allows us to right click and use the play from here. 4 00:00:15,890 --> 00:00:20,120 ‫Menu item to start from anywhere in our level. 5 00:00:20,120 --> 00:00:21,860 ‫Very useful for play testing. 6 00:00:21,860 --> 00:00:24,380 ‫Let's dive in and see how this works. 7 00:00:25,070 --> 00:00:31,550 ‫So one thing we don't typically do in Unreal is actually have our character in the world when we start. 8 00:00:31,550 --> 00:00:36,560 ‫We've seen in the past that often that character gets spawned in from a player start point. 9 00:00:36,560 --> 00:00:41,720 ‫And the reason for this, among other things, is that it allows us to be a bit more flexible about 10 00:00:41,720 --> 00:00:46,940 ‫how the player starts, so that if we were trying to play, test our level and wanted to start off already 11 00:00:46,940 --> 00:00:52,610 ‫on the cliff, we could right click on the cliff and go play from here. 12 00:00:52,610 --> 00:00:58,790 ‫If you try that out right now, you will notice that actually you just end up where we've placed the 13 00:00:58,790 --> 00:00:59,480 ‫character. 14 00:00:59,480 --> 00:01:05,330 ‫And the reason for that is that Unreal doesn't actually know what character we want to use. 15 00:01:05,540 --> 00:01:10,760 ‫Now, the way this typically gets solved is with a class called a game mode. 16 00:01:10,760 --> 00:01:18,350 ‫A game mode is essentially an actor that goes into your level and controls the rules for the game. 17 00:01:18,350 --> 00:01:24,080 ‫It tells it how to do things such as who should spawn where, what class we're going to use for the 18 00:01:24,080 --> 00:01:28,130 ‫player, as well as many other classes that define how a game works. 19 00:01:28,130 --> 00:01:34,280 ‫And in multiplayer games it can control things like how many players are allowed in in a given game. 20 00:01:34,280 --> 00:01:36,410 ‫It can also control wind conditions. 21 00:01:36,410 --> 00:01:42,770 ‫So things like capture the flag tends to be a game mode or battle royale, maybe a different sort of 22 00:01:42,770 --> 00:01:43,430 ‫game mode. 23 00:01:43,430 --> 00:01:48,020 ‫These are what we mean by the rules of a particular game or a particular match. 24 00:01:48,290 --> 00:01:55,400 ‫Now, if we go to the toolbar and click on the Blueprint dropdown, you can see that under the project 25 00:01:55,400 --> 00:02:00,590 ‫settings and under the world override, there is a menu item called game mode. 26 00:02:00,590 --> 00:02:06,920 ‫So we've got a setting for the project as a whole which tells us what is the default game mode for any 27 00:02:06,920 --> 00:02:09,200 ‫level that we create within our project. 28 00:02:09,200 --> 00:02:16,490 ‫And then we have the world override, which tells us this is the game mode for this particular level. 29 00:02:16,490 --> 00:02:23,060 ‫So you can see that at the moment we are using something called the BP Learning Kit game mode and that's 30 00:02:23,060 --> 00:02:25,910 ‫included with the kit and the project that we created. 31 00:02:25,910 --> 00:02:30,620 ‫So what we actually want to do is go and create our own and we're going to do this in Blueprint for 32 00:02:30,620 --> 00:02:31,430 ‫the time being. 33 00:02:31,430 --> 00:02:36,800 ‫But it is possible to create game modes in C++ and we will do that later on in the course. 34 00:02:37,070 --> 00:02:45,140 ‫So let's go to the project settings and game mode menu item and then go over to the create submenu. 35 00:02:45,140 --> 00:02:52,790 ‫And then what we're going to do is we're going to select a base to base this active class off of and 36 00:02:52,790 --> 00:02:56,120 ‫the one I recommend you use is the game mode base. 37 00:02:56,120 --> 00:03:00,320 ‫It's the one with the most minimal settings and things included. 38 00:03:00,320 --> 00:03:02,000 ‫So we don't get anything we don't need. 39 00:03:02,060 --> 00:03:08,930 ‫So we can click on the game mode base to create a new game mode and we got to choose a name like we 40 00:03:08,930 --> 00:03:11,660 ‫would for creating any other actor blueprint. 41 00:03:11,810 --> 00:03:15,800 ‫So we're going to call it beep always starting with that beep prefix. 42 00:03:15,800 --> 00:03:24,350 ‫When we're creating blueprints, it's going to be beep underscore obstacle assault game mode, and I'm 43 00:03:24,350 --> 00:03:28,130 ‫going to put that in the root of the content folder and hit save. 44 00:03:28,550 --> 00:03:32,750 ‫And now it's going to open up into its own tab. 45 00:03:32,750 --> 00:03:38,330 ‫And you can see that it is really just the actor tab exactly like any other actor. 46 00:03:38,630 --> 00:03:44,150 ‫And the interesting thing is if we go to our class defaults to have a look at the properties and settings 47 00:03:44,150 --> 00:03:45,710 ‫of the actor itself. 48 00:03:45,710 --> 00:03:54,140 ‫You can see that there is a section called classes and this is what dictates what player we can have 49 00:03:54,140 --> 00:03:55,910 ‫spawned into the world. 50 00:03:55,970 --> 00:03:57,650 ‫So this is what we want to change. 51 00:03:57,650 --> 00:04:02,150 ‫We want to find particularly the section called the default -- class. 52 00:04:02,150 --> 00:04:06,560 ‫We've talked about how -- is essentially the player that you play with. 53 00:04:06,560 --> 00:04:13,370 ‫So we're going to instead of the default --, select the dropdown and look for the BP third person 54 00:04:13,370 --> 00:04:13,760 ‫character. 55 00:04:13,760 --> 00:04:18,980 ‫That's the character that we've created and we're going to set that as the default. 56 00:04:18,980 --> 00:04:26,090 ‫Then we're going to hit, save and go back to the main level, go to the Blueprint dropdown and you 57 00:04:26,090 --> 00:04:30,770 ‫can still see we have this world override for this particular map. 58 00:04:30,770 --> 00:04:36,230 ‫We want to clear that so that the default project game mode is the one that's going to be used. 59 00:04:36,230 --> 00:04:44,300 ‫So let's select the world override and go to where it says select game mode class and we're going to 60 00:04:44,300 --> 00:04:46,010 ‫go and select none. 61 00:04:46,010 --> 00:04:50,330 ‫So now in the dropdown, if you have a look at it, you can see that it's saying that the game mode 62 00:04:50,330 --> 00:04:55,100 ‫is not overridden and we're using the project default game mode instead. 63 00:04:55,100 --> 00:05:00,530 ‫However, if you right click somewhere in the world and click play from here, it's still not going 64 00:05:00,530 --> 00:05:01,040 ‫to work. 65 00:05:01,040 --> 00:05:03,830 ‫And the reason for that is we still have this character. 66 00:05:03,890 --> 00:05:10,460 ‫In the level that wants to take over, essentially because we've told it to and we don't have any player 67 00:05:10,460 --> 00:05:11,150 ‫starts. 68 00:05:11,150 --> 00:05:14,200 ‫So I'd like to challenge you to fix that by adding a player start. 69 00:05:14,210 --> 00:05:21,200 ‫Remove the current character from the scene, open up the place actors panel and drag in the player. 70 00:05:21,200 --> 00:05:25,700 ‫Start actor, then test it out and see if when you play, you start from the player, start and also 71 00:05:25,700 --> 00:05:30,980 ‫see if you can right click somewhere and click play from here and see if that works to pause the video 72 00:05:30,980 --> 00:05:32,090 ‫and have a go. 73 00:05:35,180 --> 00:05:35,720 ‫Okay. 74 00:05:35,720 --> 00:05:36,350 ‫Welcome back. 75 00:05:36,350 --> 00:05:39,510 ‫So I'm going to start off by deleting the character here. 76 00:05:39,510 --> 00:05:41,690 ‫I got my place actors open. 77 00:05:41,720 --> 00:05:47,450 ‫Obviously we can do that from the quickly add to project, button the toolbar and open the place actors 78 00:05:47,450 --> 00:05:53,600 ‫panel that way and we can drag in a player start into the scene so place it it in roughly where the 79 00:05:53,600 --> 00:06:01,310 ‫character was hit play and boom our character is spawned in now what about that right click menu option? 80 00:06:01,310 --> 00:06:05,810 ‫So I'm going to go on top of our platform, right click play from here. 81 00:06:05,810 --> 00:06:12,290 ‫And here we are right on top of the platform allowing us to play, test our game far more easily than 82 00:06:12,290 --> 00:06:15,200 ‫if we had to go through the entire level every time. 83 00:06:15,200 --> 00:06:15,830 ‫Great stuff. 84 00:06:15,830 --> 00:06:22,460 ‫We've developed a bit of an understanding of the game mode class, really crucial in Unreal Game development. 85 00:06:22,460 --> 00:06:24,170 ‫I'll see you in the next lecture.