Grand Theft Auto V AI Will Let Hell Loose When You Step Away

truckspond

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Oct 26, 2013
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Imperioratorex Caprae said:
Favorite random event after character change? Trevor's Scooter Brother madness... I never saw the meme it is based on, but its fucking hilarious anyway.
Trevor is a bit of a weird one anyway...

 

Jamash

Top Todger
Jun 25, 2008
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The pedestrian panic behaviour when they hear gunshots has always been amusing, and can cause untold amounts of random chaos.

It's hilarious in GTA V when there's a random police chase and shootout on a busy highway. I saw one where the police car, criminals car and arriving ambulance had blocked the road and caused a big traffic pile-up.

Even though all the criminals were dead and everything was calm, I accidentally knocked a gun on the floor as I went to scavenge ammo and loot, which caused it to fire it's chambered round, which then panicked all the drivers and made them try to escape, but in doing so one of them nudged a cop who reacted to it like he was being attacked and started shooting the driver, which caused even more panicking and made another driver run over a cop in order to get away, which caused the cops to act like they were in combat with two groups of people and all hell truly broke loose.

You can orchestrate this yourself by standing at a busy intersection or choke point to stop traffic, then call the cops and other emergency services to summon big ambulances and fire-trucks to cause even more of a blockage, then summon more cops... eventually one of the frustrated drivers will nudge a cop and the panicked shooting will begin.

Still, nothing can surpass the hilariousness of this behaviour when it manifested itself in GTA San Andreas. All of those random plane crashes where caused by this panic behaviour and the NPC pilots of the planes having super sensitive hearing and no concept of altitude and acting like panicked car drivers. Any random gunshot had a chance of spooking a plane flying high overhead, which would cause the pilot to panic (because they think the gunshot occurred on their level) and exit their vehicle to run away on foot, causing them to fall to their deaths and the now empty plane to crash and burn.
 

Aerotrain

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Sep 7, 2014
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This is not typically what happens if you leave the game on. This is a switch-character scene (Michael's I believe) in which he is stuck in a traffic jam and it obviously went bananas as things in Los Santos sometimes do. The AI will not just "go bonkers if you do nothing", that's pretty misleading.
 

masticina

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Jan 19, 2011
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Have you ever seen the traffic in San Andreas? Lets say you had the quickest car out there.. and did go crazy on the high way. Guess what even the slow clunkers tried to race you. Yup all cars did drive as if a rubber band was hooked on your car. And somehow that old clunker that you can't get beyond 80MPH rides 160MPH.
 

Strazdas

Robots will replace your job
May 28, 2011
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we got a cop firefight and AI is reacting to it by being scared. beside the obviuos AI patchfinding issues of that fat guy with red shirt it seems quite well done

also that looks quite awesome, i like this reactoinary AI.

masticina said:
Have you ever seen the traffic in San Andreas? Lets say you had the quickest car out there.. and did go crazy on the high way. Guess what even the slow clunkers tried to race you. Yup all cars did drive as if a rubber band was hooked on your car. And somehow that old clunker that you can't get beyond 80MPH rides 160MPH.
the SA traffic was pre-coded most of the time. you saw cars spawning at 90miles per hour ramming everything, ect. only when it collided with something (like you) the AI would turn on. San andreas AI was awful, but i loved the car driving mechanics and in multiplayer others were real people so AI problem was solved.
 

elvor0

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Sep 8, 2008
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crazygameguy4ever said:
this isn't new..i've seen this same thing in a lot of open world games.. it's called bad AI programming
Yeah you tried that one in the Facebook comments and everyone shot you down. Why you would come to the decision that this is bad AI is anyones guess.
 

Barbas

ExQQxv1D1ns
Oct 28, 2013
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TizzytheTormentor said:
Honestly, if there was one cheat I wished was in GTA IV, it was the civilian riot and civilian have weapons cheats, they were a ton of fun, turning the city into a warzone where you would try and survive (me and my friends used them and took turns surviving the longest picking up no health powerups)

Really hope there is something like that in the PC release, if there is, I swear I will buy it again, you have no idea how much fun I can have with those cheats active (while your at it, bring reckless drivers back too for even more mayhem)
I agree wholeheartedly; I could never find out how to mod that into the game but I loved watching people's YouTube videos of cars bouncing lethally around the city like rubber balls. More fun than indoor dodgeball in the dark.
 

MHR

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Apr 3, 2010
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Ah, this happens in all GTA games. People always drive and walk like they're too high to care about consequences. This type of chaos can happen in a variety of ways.

- Cars can hit other cars for no reason, because nobody ever bothers to make NPCs drive like most people would. When a collision occurs, nobody ever just pulls over and exchanges insurance information. Instead, drivers have a chance of panicking and floor it trying to get away which causes chain reactions, or they'll get their road rage on and try to murder the owner of the car that hit them. This kind of thing can snowball.

- When cars hit people, sometimes those people get mad and try to start a fight with the guy that hit them. Fights can leave idle cars sitting in the street; see the next point.

- In most city sandbox games, if there's an empty car or other obstacle in the road, non-moving drivers will get impatient and eventually attempt to go around whatever's blocking them at all costs. They typically drive onto the sidewalk and break things, hit people, and generally start driving like shit. If they can't get around whatever's blocking them, they often attempt to just ram it hoping to get through. This obviously causes problems. All it takes is one car parked in the middle of the road to eventually cause urban chaos, even if takes so long for that one car to get bumped enough that it explodes.

- Cops have a short fuse. Anyone running over a cop or crashing into a cop car is the latest candidate for police brutality. Cops can sometimes care enough to do something about people starting fights in the streets or running over other people, typically adding gunfire and setting everyone off.

- When people hear gunfire or explosions, people start to panic and floor the gas pedal and hit things without a second thought, even if it means smashing into things and being unable to go anywhere, or even burning cars set to explode. This is what happens in the video.

It's always funny unless one of these panicking fools happens to run over you. That hurts a lot and just makes you want to shoot everything.
 

gridsleep

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Sep 27, 2008
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"This article was published without approval or consent of ZelnickMedia or Take-Two." But, it's really good advertising, don't you think? Anyone still wondering why Jim Sterling went south?
 

SmugFrog

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Sep 4, 2008
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Imperioratorex Caprae said:
Favorite random event after character change? Trevor's Scooter Brother madness... I never saw the meme it is based on, but its fucking hilarious anyway.
It's based on a meme? That remains one of the funniest/random things I've seen. If I hadn't been listening to the audio it wouldn't have really been out of ordinary, either - just Trevor on a scooter. I switched and he's yelling at the guy, so I just started following him; sure enough, Trevor continued to yell at him for a while! Awesome.
 

Reed Spacer

That guy with the thing.
Jan 11, 2011
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truckspond said:
Imperioratorex Caprae said:
Favorite random event after character change? Trevor's Scooter Brother madness... I never saw the meme it is based on, but its fucking hilarious anyway.
Trevor is a bit of a weird one anyway...

Kind of reminds me of a cross between Mister Torgue and Krieg.
 

Vrach

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Jun 17, 2010
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D-Mc-G said:
I think why it suddenly goes haywire is because of the sudden firefight in it's vicinity =P
^Pretty much this.

GTA's AI always worked like this. AI will get "bored" if forced to wait behind another vehicle and go around (much like you would in the real world, to be fair). Sometimes, they will crash slightly into other vehicles and cops are fully aggressive - civilian hits a cop car, cop gets out and starts shooting. Because... yeah.

Civilians sometimes have guns, so they fire back, much like the cops would. Firefight breaks out and every time there's a gunshot near a vehicle, every vehicle in the vicinity just hits the gas and tries to drive through anything to get out as directly as possible. This usually causes more crashes.

Again though, this is the case in every single GTA game to date as far as I remember. You can even make it happen by slamming a car from behind into a cop car that's in front of it, the cops go crazy and shoot the hell out of the car that hit them.
 

RedDeadFred

Illusions, Michael!
May 13, 2009
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crazygameguy4ever said:
this isn't new..i've seen this same thing in a lot of open world games.. it's called bad AI programming
Actually, if you listen, you can hear that there's a gun fight going on in the street at the beginning and throughout. This is what causes all of the chaos, everyone wants to get the fuck away as fast as possible. I'd say it simulated chaos pretty nicely. The player definitely cherry picked the scene though.