Accelerated Back Hopping in Half-Life 2 - Math Explained

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This video's subtitles took 60 minutes.
This project started on June 1.
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00:00 The Intended Speed Boost
03:44 Old Engine Bunnyhopping
04:43 New Engine Patch
06:47 Trying to Bunnyhop in New Engine
07:47 Running Jump Into Sprint Jump
08:16 Sprint Jump Into Crouch Jump
09:07 Facing Sideways During Speed Penalty
10:04 Facing Away from Direction of Motion During Speed Penalty (ABH)
10:46 As above, while Holding Backward
11:44 Facing Forward while Holding Backward (AFH)
12:04 Accelerated Forward Hopping Details
13:21 Accelerated Side Hopping
13:57 What was the Mistake?

Пікірлер: 95

  • @mnichu201
    @mnichu2016 күн бұрын

    5 minutes of math class: 👎 15 minutes of emotionless guy explaining the half life 2 movement: 👍

  • @SkylorBeck

    @SkylorBeck

    6 күн бұрын

    I cannot get enough of people breaking down the code for my favorite games

  • @ruzgar1372
    @ruzgar13726 күн бұрын

    Valve tried to stop speedrunners and in turn accidentally created one of the most fun speedrunning tactics.

  • @NoahGooder

    @NoahGooder

    5 күн бұрын

    heck they even created a new genre of maps.

  • @SU76M
    @SU76M6 күн бұрын

    Imagine giving Pinsplash a power of Shounic to illustrate his explanations.

  • @erykdoors

    @erykdoors

    6 күн бұрын

    shounic and pinsplash will be very poweful if combined

  • @mr.second3427

    @mr.second3427

    6 күн бұрын

    Infinite power.

  • @mfaizsyahmi

    @mfaizsyahmi

    6 күн бұрын

    Outro: "..." (because commentary nodes weren't available in HL2)

  • @NicknineTheEagle

    @NicknineTheEagle

    5 күн бұрын

    ​@@mfaizsyahmiEp1 and Ep2 have them.

  • @theworldisafrog

    @theworldisafrog

    5 күн бұрын

    dude i watch shounic too holy SHIT that would be the dream

  • @maede3ta34
    @maede3ta346 күн бұрын

    god tried to stop the freeman and the freeman merely became faster

  • @Just5omeRandomGuy

    @Just5omeRandomGuy

    6 күн бұрын

    Now we all need one man to HUNT DOWN THE FREEMAN

  • @Space-Shuttle-Scam

    @Space-Shuttle-Scam

    6 күн бұрын

    Gordon freeman is so powerful he can break the laws of physics.

  • @d1_town_01

    @d1_town_01

    6 күн бұрын

    @@Space-Shuttle-Scam thats what being a theoretical physicist does to you

  • @snippetism9802

    @snippetism9802

    6 күн бұрын

    @@d1_town_01 Well thanks to Gordon, it's no longer theoretical in a way

  • @Kevin-jb2pv

    @Kevin-jb2pv

    6 күн бұрын

    ​@@snippetism9802 its a theoretical degree in physics

  • @BobTheMartin
    @BobTheMartin6 күн бұрын

    "Yes I drive a 2004 Gordon Freeman"

  • @1thevm1
    @1thevm16 күн бұрын

    It's weird how they messed up coding the speedlimiter despite having a pretty robust one in HL1. The systems are different, sure, but I guess the intern who coded it that day totally winged it. At least it gave us one of the coolest movement techs in gaming.

  • @mfaizsyahmi

    @mfaizsyahmi

    6 күн бұрын

    Because the one who added the one for HL2 wasn't named John Carmack/Romero, whichever.

  • @LotsOfS
    @LotsOfS6 күн бұрын

    You know an ABH video is good when the videotist starts the video on the Highway 17 dock

  • @karoltsvetkov517

    @karoltsvetkov517

    5 күн бұрын

    videotist lmao

  • @Dillon4599
    @Dillon45995 күн бұрын

    My favorite thing about this channel is that Pinsplash sounds exactly like a Valve developer commentary node.

  • @mooj269
    @mooj2696 күн бұрын

    the car is ready for you now dr. freeman

  • @SU76M
    @SU76M6 күн бұрын

    Oh, and by the way - huge thanks for subtitles. It's very important.

  • @ahmetdag5600
    @ahmetdag56006 күн бұрын

    Debugging hl 2 code for understanding how glitches work. Marvelous job. Thx

  • @lucialambda
    @lucialambda9 күн бұрын

    heck yes new video to listen to whilst doing art

  • @udontseemeiseeuuseemeiseeu
    @udontseemeiseeuuseemeiseeu6 күн бұрын

    never left my alzheimer's ridden grandfather unattended faster

  • @alejandropulidorodriguez9723

    @alejandropulidorodriguez9723

    6 күн бұрын

    I think the world needs you

  • @jonskillings1258

    @jonskillings1258

    6 күн бұрын

    It's ok, you now know the math to get back faster

  • @wuzzle22
    @wuzzle224 күн бұрын

    The car's ready for you now Dr. Freeman!

  • @chekkibrekkiv1.245
    @chekkibrekkiv1.2456 күн бұрын

    hay guys its desinc today im gonna show you how to reverse bhop

  • @CausticAscarite

    @CausticAscarite

    6 күн бұрын

    300 km/h!!!

  • @verzionhorizon
    @verzionhorizon6 күн бұрын

    i always wondered how bhopping worked...interesting video! I liked it!

  • @timquestionmark
    @timquestionmark5 күн бұрын

    great video! It's great to have resources like this explaining the logic behind weird wonderful mechanics

  • @kuromeankokuboshi8568
    @kuromeankokuboshi85683 күн бұрын

    As a person coding gmod addons, hearing code related stuff like normalized vectors puts a smile on my face

  • @orby5183
    @orby51834 күн бұрын

    hey pinplash I don't know why but your voice is very comforting and I like your videos, they speak very loudly to my adhd.

  • @Pasite_
    @Pasite_4 күн бұрын

    You explain everything so well! Keep it up man!

  • @SKCro.
    @SKCro.6 күн бұрын

    How does one 'walk' in HL2 while wearing a HEV suit? Is it some separate, normally-unused keybinds or something? You mentioned that being HEV-less forced you to walk, but in some of the footage (mainly 2:10 ), it's implied that the player is in the HEV suit (mainly from the UI), but are still somehow walking. This video also gives me a terrible idea: Beat HL2 while going as slow as possible (while constantly moving - no waiting 8 hours then beating the game lol).

  • @vladls

    @vladls

    6 күн бұрын

    Hold ALT to Walk

  • @SKCro.

    @SKCro.

    6 күн бұрын

    @@vladls Wait, seriously? That's a keybind? How did I not notice that while going through the controls? I guess it's a bit of a weird and obscure one since alt is a bit hard to press with one hand while also pressing a directional key :P

  • @vladls

    @vladls

    6 күн бұрын

    @@SKCro. Yeah, it's also kinda hard to jump while Walking

  • @pandill0
    @pandill06 күн бұрын

    super in depth video about my niche interest? yes please!

  • @the_last_chancer
    @the_last_chancer3 күн бұрын

    I would like more in-depth code analysis of source or other games pls.

  • @quarantineDSAL
    @quarantineDSAL6 күн бұрын

    cool video, well explained

  • @hazss
    @hazss5 күн бұрын

    Omg! Another pinsplash video! And with captions! I love you for captions.

  • @ecksdee1149
    @ecksdee11496 күн бұрын

    This is one of those VERY rare videos i never knew i wanted to see

  • @Sugar3Glider
    @Sugar3Glider5 күн бұрын

    When you landed one of the big jumps KZread shat itself and restarted my playlist. I was very confused

  • @MaxTovstyiMusic
    @MaxTovstyiMusic3 күн бұрын

    I never knew I needed something like this to know

  • @SourceSpaghetti
    @SourceSpaghetti5 күн бұрын

    Thank you Mr Pinsplash for teaching me the ways of Half-Life.

  • @thatgi3817
    @thatgi38176 күн бұрын

    I guess the Certified Valve Polish (TM) isn’t applied very much for patches. This wouldn’t have slipped through the cracks in mid-stage development… right?

  • @Taras195
    @Taras1956 күн бұрын

    Why didn't they just clamp all the speed vector components (separately) after all these calculations, and recombine it back?

  • @BenLubar
    @BenLubar6 күн бұрын

    I want to put something like ABH into Alien Swarm: Reactive Drop, but the player not being able to jump causes some problems with this.

  • @kokobedima
    @kokobedima5 күн бұрын

    Great material for falling a sleep

  • @Deniil2000
    @Deniil20002 күн бұрын

    We give a player a forward speed boost when they jump. But now, we want that speed boost gone. So, do we just remove the speed boost then? No, we surround it by more spaghetti logic

  • @dendi7698
    @dendi76986 күн бұрын

    subtitles took 2 times more than previous video about episode one wtf

  • @ethanisnotsleeping
    @ethanisnotsleeping6 күн бұрын

    So, I'm just curious, in terms of MPH, what is Gordon's max possible speed with ABH?

  • @NoahGooder

    @NoahGooder

    5 күн бұрын

    well if you had an infinately large map to test it you could probably reach somewhere in the range of 2147483647 units per second.

  • @NicknineTheEagle

    @NicknineTheEagle

    5 күн бұрын

    Player's movement speed in HL2 is hard capped to 3500 HU/s. Which you can reach pretty quickly with ABH.

  • @mantazzo
    @mantazzo6 күн бұрын

    Honestly, I would love if you could implement some of your stuff into HL2 reUpdate mod, would be quite cool tbh.

  • @Bunerd
    @Bunerd6 күн бұрын

    I did not understand anything but great video nontheless

  • @inkybz
    @inkybz5 күн бұрын

    i love pinsplash

  • @bloodakoos
    @bloodakoosКүн бұрын

    yeah its the backwards long jump from mario 64

  • @TheJohnDough129
    @TheJohnDough1296 күн бұрын

    How do u know all this point Dexter?

  • @explodingbearz
    @explodingbearz8 күн бұрын

    It's a sad day to not be in the channel members list :(

  • @Pinsplash

    @Pinsplash

    8 күн бұрын

    what do you mean? i got you in there

  • @explodingbearz

    @explodingbearz

    7 күн бұрын

    ​@@Pinsplash I was under the influence when I made this comment PAY ME NO MIND!

  • @explodingbearz

    @explodingbearz

    7 күн бұрын

    ​@@Pinsplash🤍🤎♥️💙💚💛💜🩷🩶🩵🧡 keep being awesome!

  • @juanes8931

    @juanes8931

    6 күн бұрын

    ​@@explodingbearz lmao

  • @Lambdac0reYT
    @Lambdac0reYT6 күн бұрын

    Yeeeeaaaaaaahh

  • @benishench
    @benishench5 күн бұрын

    🗣🗣🗣🔥🔥🔥

  • @josha618
    @josha6185 күн бұрын

    pick up that can

  • @ragnose1
    @ragnose13 күн бұрын

    why not just set it at max speed if new speed is greater than max speed...

  • @inkybz
    @inkybz5 күн бұрын

    yes ^^^^^^^^!!!!!!!!!!!!!!!!!!!!!!!!

  • @crosskoyamayandaytugay3508
    @crosskoyamayandaytugay35085 күн бұрын

    hmmm

  • @MrDirt
    @MrDirt5 күн бұрын

    Oh Boy, time to listen to some Bismuth piano music and watch some Pinsplash.

  • @shawermus
    @shawermus6 күн бұрын

    According to this vid (hl2 devs reacting to speedrun), it seems that devs left this on purpose. kzread.info/dash/bejne/pX-TssawfJi_aMo.htmlsi=7tET1wB4wIgWfZVY

  • @Mr.SpicyIce
    @Mr.SpicyIce5 күн бұрын

    Sorry. This meth ache in my skull is hurting like hell.

  • @triatomicend
    @triatomicend6 күн бұрын

    AARRRRRRGGH *I FUCKING HATE MATH*

  • @dk1480
    @dk14806 күн бұрын

    My fix if (flNewSpeed > flMaxSpeed) { if (mv->m_flForwardMove > 0.0f) { flSpeedAddition -= flNewSpeed - flMaxSpeed; } else if (mv->m_flForwardMove { flSpeedAddition *= -1.0f; flSpeedAddition += flNewSpeed - flMaxSpeed; } } else if (mv->m_flForwardMove { flSpeedAddition *= -1.0f; } Fixes this

  • @keanewardall233
    @keanewardall2336 күн бұрын

    Hi

  • @scantyer
    @scantyer9 күн бұрын

    Pin math teacher ❤

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