 Hello and welcome, this video is part of a series, number 16 I believe in the series, of using Eureka Doom Editor to create Doom maps. And today we're gonna look at, I'm gonna try to create some errors in the map and show ways to fix some of these errors. And I tell you what, back in the 90s, I used to create Doom levels a lot and then I didn't for many, many years and I recently in the last year or so started doing it again. And I tell you what, things are so much better than they were back in the 90s in this aspect. I mean, Eureka Doom Editor does a great job of not just telling you about errors but also trying to fix them. It is amazing. So, let's go ahead and what I'm gonna do here, first thing I'm gonna do is actually have an error that doesn't really cause problems but isn't quite right. It's that I've actually had for a while in this level. Basically, if you go up to tools, you can see here that you can do, or I'm sorry, check all F9. So I usually just hit F9 and it will start telling you things right here or right away it tells you that your map is missing death match starts because by default, it gives you four co-op start positions but doesn't necessarily give you death match because maybe your level isn't designed for death match. This is just a little warning saying that there are no death match starts. I'm gonna continue here and here it's gonna tell me that I have one non-animated switch texture and I can choose fix or show. I'm gonna click show and it's gonna show me this switch here. So let me go ahead and move my 3D preview here. You can see the switch here. The way I selected this texture, when I switched in the game, let me go ahead and show you this. When you flip that switch theoretically, see I flipped it and that wall's going down but the switch didn't flip. It's because of the way I chose that texture and what we're going to do here is F9, the easiest thing to do is just let Eureka fix it. Continue now. Theoretically, I should be able to go in here and there you see that time the red went to green and the switch flipped. So it fixed that animation for me. Here's another thing you might have. Let's go over here where we have all these bad guys. Let me go ahead and just turn off my snap to grid. I'm gonna put these two guys right here. Now if I hit F9, it's gonna show me that I have one actor stuck. Show and it's gonna show me these two. They're so close together that they're stuck together and then I can fix that and it will show me if I do that a couple of times. I hit F9, now it's telling me there's two actors stuck. Show and it's showing that. And that will do that if they're stuck like that or if I put one in the wall it should also tell me that. F9, actor stuck, one void thing. That's I think it's because he's technically outside of that sector. I can say show and it'll show and I can move him. If I hit F9, I can just say remove and it will remove it if I wanted to do that. So that is another thing that you're gonna do for you. Now, I'm gonna quickly create, let me turn on my snap to grid. A little room over here, another little sector. And it's just a simple little sector here. But let's say that I put a door here and things in this room and I liked it so much I wanna make another copy of it over here. Let me go ahead and make this room a little bit bigger and then I'm gonna hit sector and then choose that sector, that sector. I'm gonna copy, I'm gonna paste right here and then I'm gonna move that right there. Great, right. So those rooms are connected now, right? Well, not quite. You can see here when I hit F9 we have one unclosed sector and one mismatched sector. Let's hit continue. It's showing me that I have four crisscross lines and if I continue, continue. Those are all my errors here. So this room is still, the sector is still not connected. So what I can do here with these, I can say show and it will show me the issues I have, unclosed sector, mismatched. So it's unclosed because this is touching if it's kinda open. So let me go ahead and take this and what I'm gonna do is I'm gonna go like this and go like that and go like this and like that. And now that should be connected but there still might be problems like here. I connected the vertices there but the lines are overlapped. If I go show it's gonna show me those two lines are overlapped. If I hit F9 I can say remove and it will remove one of those. And now I can continue through this and I now have this sector connected but you'll notice the ground sector section is not showing up here. If I hit S, this sector has issues. And if I click F9 now, it says unused sides. It's showing me the thing I can say show me this. It's showing me that. Show me, it's gonna show me the same thing there. Let me go ahead and continue. Continue, I'm gonna hit F9. Again, I'm just gonna say for right now I'm gonna say remove for those. Continue, I'm gonna hit F9 again. I let Eureka in most cases take care of whatever it can take care of. Now what I can do now because I kind of messed up the sector when we deleted this line. So what I can do is in sector mode come over here and most of the time I should be able to just hover my cursor over there and hit space bar and it fixes that sector for me. If I hit F9 now, I don't have any of those errors and I should be able to come in here and see that I have those new rooms. And again, that's very helpful. If you create a number of rooms and the doors and you don't have to go through and label it all again you just copy, paste, connect like so. Another thing that Eureka will check for you. There's lots of things it will check for you. Let's say I wanted to have this line when I walk through it do something or a switch, anything like that. So I'm gonna hit that line, I'm gonna say choose and I'm gonna say that I want it to, oops, let's do, doesn't really matter. I'm gonna say lift. When I say when I walk through I want it to lower a lift. Okay, great. Well now I hit F9 and hit continue it's gonna tell me that it's missing a needed tag. So I'm gonna say show, it's actually showing me. Oh, cause I had all those selected. So basically these all, when I created this I had those lines selected and I didn't realize it. So real quick, let's go ahead, select this selector I'm gonna hit L to have all those selected and I just come up here for type and I'm gonna hit zero. Okay, now if I hit F9 it's gonna tell me that I have one line missing a needed tag. Okay, I'll click show and it will show me that line. So what it's saying is I said I wanted this to activate a lift when I walk through it but I didn't give it a tag to tag to a sector. So I need to give it a tag. So if the sectors are recreated I wanna make sure whatever tag I have is applied to this I haven't yet. If I hit F9 I can click here and it says you want me to apply a fresh tag to it, I'll say apply and it's gonna give it the next number which in this case is nine. I still, if I hit F9 it's not gonna give me an error here. Oh, maybe it does. It's saying that I have this tagged to lower a lift but it's not connected to any sector. So I would then at this point I wanna create a sector such as this. I'll lift its floor up a little bit and I will give it a tag of nine to match the tag of that wall. Now we should be good because I have a wall with a tag that's linked to a sector. So there you go. There's lots of other things that this may check. Sometimes it will say something's being removed. Oh, here's another thing. So let's say I had, I go in here I'll just add in here this little health file or whatever it's gonna be. I'll say it's a weapon. I'm gonna give you the BFG. Remember we have here where I say it shows up on easy, medium or hard? Let's say uncheck all those. It will tell me it's unsponible. There is no case scenario. You have that BFG there. There is no case scenario where that will actually show up in the game. You can say show and it'll show you that and then you can check the boxes if you want or if you want to just say fix and it's going to check all three levels for you. So that's another thing. And I've had that happen because things like your player start position. Oh, right now I must have done this easy, medium, hard. Those are usually unchecked for those. So I can select all three of those and just uncheck them. And you'll notice they won't give me an error because they show up on all difficulty levels. But I've had cases where I have one of those selected and I click over here to add a new item and it adds that player position. I'm like, oh, no, I want that to be a shotgun. Well, it changes to a shotgun, but these are still on check. F9 is going to tell me. I can click show. It will show it to me. I'll hit fix and it'll add all three of those for me. So that is a good thing to do regularly. I don't, you know, definitely before when you're done with your level, definitely hit F9, but you might want to do it before that. But if you're having problems in your level, it may show you, you know, what the issue is. And again, there are a lot of things that it checks. Sometimes it'll show you where the things are. It'll give you an option to either remove or fix those elements. Let me see if I can cause one more thing here. I'm going to go vertices. I'm going to add in a sector here. And if I move that sector to here, now I hit F9 mismatch sector. I'm going to go continue. It's going to tell me four lines across. I'm going to click continue, continue. I was hoping it would say something about the vertices here. What happens if I do this? Now I take that sector and hit F9. Okay, so now we have two vertices overlapping. So let me just continue. I'm not going to fix any of that just now. It's showing, so you can see, I have a vertices here and a vertices here. There's actually one there and one here and one there and one here. And there's different ways you can fix that. Let me just undo that. One is I can pull one away and put it back. And now sometimes that will merge it. If not, I can box select those and hit M and it should merge them and same with these and that will fix that problem. Let me undo that and hit F9. I can also just say merge and it will merge them for me. So I don't have to individually select them. Again, we have these two lines now overlapping. There's really no way for me to show you that, but I can just click remove and it will remove one of them, which ends up causing the sector to be open. If I hit F9 now, it's telling me I can click remove on this. And again, it still doesn't fix that problem, but the way we can fix this, I can say show, it's gonna show me this S for sector. Anytime you see a sector like this where it's showing, it's not closed, it's connected but the ground isn't showing up and you can see the only three of the four walls. Just go into sector mode, hover your cursor over it, hit space bar. It's going to recreate that sector, hopefully properly. And now we have that sector there. Might wanna fix the textures. Anyway, those are Eureka trying to fix errors for you or at least notify you of them, which is awesome rather than in most cases, trying to figure out yourself what the problems are. I do thank you for watching. I hope you enjoy this video. Again, check out the link in the description to the full playlist and visit filmsbychris.com. That's Chris Decay. I'll link in the description of the video as well. And as always, I hope that you have a great day.