Kill All The Enemies To Win or Open A Door - Unreal Engine 4 Tutorial

[@pollocaliento65]

After 3 hours of: denial, anger, bargaining, depression and acceptance this video saved me. Just thanks.

[@chickishot8172]

So my door just automatically opened as soon as I hit play, but when I changed the game mode from being going off the event tick to a custom event that gets called from the BP which does the -1 for the amount it immediately worked the way it was supposed to. Thank you for the tutorial!

[@noisyether9211]

I just was needing this lol. Thanks im more of a director then designer your videos are a super help!!

[@MattAspland]

That's great! Glad I could help you out man, nice work!

[@luizferreira4641]

Hey Matt, great tutorial. What if the level has two rooms and in each room has the same mechanics? How can I make a second door open after you kill a second wave of enemies? I tried to duplicate the door and it didn't work for the second room. Any ideas? Thank you so much for this.

[@MrMeat570]

Is there a way to add a counter to show how many enemies you have killed?

[@christianparis3463]

I know this is an older video, but I am having some trouble with this. I checked all the coding multiple times and I do not see any issues anywhere. I have pretty much all of the coding you do, except in the game mode, I have a sequence node with 5 different execs. I have four doors, and then the last one is a win widget for when there are no relics left. For some reason, the only one that goes off is the one that has the object count == the default count for the object in the branch condition. For some reason, it seems that the object is not updating by adding or subtracting the objects at the right times. Any tips?

[@Hazzbazz]

really good mate question tho. how would u do this with multiple sections on the same level with the same ai enemies. basically, get rid of the enemies in one room to open the second do it again and repeat

[@SafaAlkan]

Thanks a lot again! Your videos help my university project really!

[@MattAspland]

No problem man, I'm always happy to help! All the best of luck with your university project :)

[@galberger3937]

Hi. Can you show how to use this tturial when a sword kill the enemy and not by touching the enemy?

[@brianworden7022]

Is there a way to make the door close on entrance of an area a then open once a boss is dead.

[@timkerchman2191]

Could I use this same mechanic to let's say complete a goal to have a button or key made visible to open the door. I followed your tutorial with the button and door. I was just wondering how to basically earn/win the button after a goal than go to open the door.

[@geekpotion]

want that event tick be very heavy on performance , especially if you have multiple doors

[@abdullahsohail5395]

Nice video it will help me alot

[@MattAspland]

No problem, happy to help! :)

[@charbelbouchmouny6295]

Really handy man!! Worked great, when I try to kill the AI with a particle effect (another actor blueprint Ofc) but it doesn’t seem to work even tho the AI still gets destroyed

[@djsalis]

Great video thanks :)

[@TJung121]

If I just wanted to win the game and make it load victory screen instead of the door, can you explain how to do that? Or is there a video that show this? Thanks so much!

[@LennoxFyre]

Hello Matt. This video helps a lot. However, I want to apply these mechanics to solely a level instead of the entire project which is the gamemode. Which Cast To and Get nodes do I need to apply them to a specific level?

[@nightfury9201]

Is it active only in this area? Or how can it be implemented only in this area?

[@octavia7466]

Hi! I just wanted to ask, if I wanted to make a second room with the same door system do I need to create a new AI blueprint/door blueprint for room 2 so it can act independently?

[@MattAspland]

Hey, there are a few different ways to do this that I've figured out with people, however the one you suggested would be the easiest and best to do. You could create a new blueprint to store the information in for the amount of AIs left. Just make sure that the new AIs for the room go into the correct blueprint. Hope this makes sense :)

[@octavia7466]

@@MattAspland yep! Thanks for the reply :)

[@MattAspland]

@@octavia7466 Great, no worries :)

[@stefanleroux8750]

Thans for this. Definately going to use this. Is there a chance for a tutorial on crosshair in middle of screen and to open multiple drawers with that in 3rd person vew? Alk I know is that you must make a line trace from crosshair to drawer. To open one drawer is easy. The problem is when there are more than 1 drawer. 😳😬. Have a great day.

[@MattAspland]

No problem, that's great to hear! And yeah of course, I think I can add that to my list to do, great idea thank you! :) Hope you have a great day too :)

[@JimboVoiceovers]

What if the door opens and the ai is still there. is there a way to kill all of the enemies all at once?

[@bobgratton2986]

it tells me that the integer variable cannot be connected, the blueprint doesnt allow me to link it to third person character game mode

[@karinevinette195]

I have the same pb do you have an answer ?

[@gastonbob3308]

@@karinevinette195 i do cause I went trough, but I cant remember what ive done, I actualy used this tutorial for a door conditions where finding x number of somethimg to unlock it.

[@gastonbob3308]

@@karinevinette195 pls tell me the exact moment on the video

[@gastonbob3308]

I can provide you an answer just tell me the moment you are havin a problem

[@nonstopvlogging]

Hey thanks so much for the video man. Really needed this "perform an action on last enemy being killed". Want to use it for a killcam. To make it more efficient, you could get rid of the event tick, and only have the door check whether it needs to open when an enemy is killed. : )

[@MagnumRoland]

How??? instructions unclear, I'm using unreal 7 now xD

[@hariomarts7750]

Bro can u tell me what I need to do if I want to add only 2 persons to kill and not all to open door

[@MattAspland]

Hi, in our == for the branch where we are checking how many we have left alive. For the bottom value, instead of 0, you'd put your maximum amount minus 2. Hope this helps :)

[@hariomarts7750]

@@MattAspland thankyou very much you earned a sub again thanks

[@MattAspland]

@@hariomarts7750 No problem man, happy to help! And thank you, I really appreciate that :)

[@hariomarts7750]

@@MattAspland bro I tried but it didn't work when I put -2 nothing happen iwant only kill two players (no matter how many are there) help bro

[@MattAspland]

@@hariomarts7750 No sorry, you wouldn't put -2, you would get the maximum amount and then -2 from that, and put that into the ==. Hope that helps :)

[@CryptMhg]

great video as always m8 :D...can u explain how to download SDK on windows 7 correctly like none of the youtube tuts are useful ... maybe u using windows 8 or 10 idk but i just wanted to ask ..maybe u know something about it :D

[@MattAspland]

Thank you! :) And I'm using windows 10 myself, but I assume you might just need to find a compatible version of the SDK, so it will work on Windows 7 and the version of Unreal you are using. If not, maybe updating to windows 10 might be worth it?

[@BigBro_1]

pls make this for unreal engine 5

[@belalkurd9135]

Thank you

[@mohammadjavadehsani346]

Why You Like Doors So much?

[@MattAspland]

They are a great way for beginners to learn, and I get a lot of requests involving them, this was once again a request. :)

[@tomhikon]

When one door opens another one closes 😅

[@ty_teynium]

Didn't work for me. In my game mode where you get a copy I cannot connect the output pin into the input of the custom event call in the door. Edit: Nevermind. I keep forgetting you gotta draw out get a copy a second time and it will go through! Everything else worked fine; many thanks!

[@MattAspland]

Oh great, that is what I was going to recommend too so glad that did fix it. Glad everything else worked for you, no problem. All the best! :)