Half-life Jumpbug + TAS question

2009-09-17 07:05:53 am

First of all, sorry for making a new topic. If you think it's only a waste of space, move the thread to an actual thread.
For the TAS question, go to the end of the post.

So Jumpbug. I already saw the HL speedruns doesn't involves/[ab]uses the jumpbug technique. First, view this video:
Second: Jumpbug is one of the hardest technique in Counter-Strike (and now I think in HL too). I didn't knew, that jumpbug works in HL too. I only tried once with pause; wait; pause method however, it doesn't advances real frames, so I had no chance to do a successfull jumpbug. I'm learning jumpbug two days ago, and if I'm lucky, then I can do 1 jumpbug / 15 jumps and I say that when I'm reaal lucky.
So what is jumpbug: as the video also defines it, you can do a jumpbug on every platform without loosing health. The trick is that you jump on a platform's hull box, which is 4 units bigger in all side of the platform. Here is an illustration.
As the video shows, you have to hold duck in air and when you are maximum 4 units above the platform, you release duck and press jump in that order within one frame. This is a very very good trick that should be used in HL runs.

So why did I made a new thread. I already saw mentions about the jumpbug but as far as I know, nobody used it or said that it works 100% in HL too. I hope that you can use this trick in HL engine based speedruns as a good shortcut technique (so you don't needs those cliffs anymore). btw i made a demo to prove it [latest hl]: : http://warcataclysm.atw.hu/jb.zip

TAS... I'm curious about MrBozo, how did he made the bunnyhop mod. Because the free gold src doesn't includes the compilable source code, so does he has the full gold source, or did he disassemblied or... or what? Anyone who has direct contact, please ask him, or lead him to this thread, because anything he should say about the way he did the mod would be a valuable information for making the TAS.

And I really hope that this isn't a double post or an already discussed technique or already used several times or.... you know what I'm talking about. I think I will try it in quake 2 also, however I don't have a copy of it atm.

Thread title:

First of all, sorry for making a new topic. If you think it's only a waste of space, move the thread to an actual thread.
For the TAS question, go to the end of the post.

So Jumpbug. I already saw the HL speedruns doesn't involves/[ab]uses the jumpbug technique. First, view this video: [url=http://www.youtube.com/watch?v=IJK83dDfc0E]http://www.youtube.com/watch?v=IJK83dDfc0E[/url]
Second: Jumpbug is one of the hardest technique in Counter-Strike (and now I think in HL too). I didn't knew, that jumpbug works in HL too. I only tried once with pause; wait; pause method however, it doesn't advances real frames, so I had no chance to do a successfull jumpbug. I'm learning jumpbug two days ago, and if I'm lucky, then I can do 1 jumpbug / 15 jumps and I say that when I'm reaal lucky.
So what is jumpbug: as the video also defines it, you can do a jumpbug on every platform without loosing health. The trick is that you jump on a platform's hull box, which is 4 units bigger in all side of the platform. Here is an [url=http://img19.imageshack.us/i/blocki.png/]illustration[/url].
As the video shows, you have to hold duck in air and when you are maximum 4 units above the platform, you release duck and press jump in that order within one frame. This is a very very good trick that should be used in HL runs.

So why did I made a new thread. I already saw mentions about the jumpbug but as far as I know, nobody used it or said that it works 100% in HL too. I hope that you can use this trick in HL engine based speedruns as a good shortcut technique (so you don't needs those cliffs anymore). btw i made a demo to prove it [latest hl]: : [url=http://warcataclysm.atw.hu/jb.zip]http://warcataclysm.atw.hu/jb.zip[/url]

TAS... I'm curious about MrBozo, how did he made the bunnyhop mod. Because the free gold src doesn't includes the compilable source code, so does he has the full gold source, or did he disassemblied or... or what? Anyone who has direct contact, please ask him, or lead him to this thread, because anything he should say about the way he did the mod would be a valuable information for making the TAS.

And I really hope that this isn't a double post or an already discussed technique or already used several times or.... you know what I'm talking about. I think I will try it in quake 2 also, however I don't have a copy of it atm.

quadrazid

2009-09-17 08:25:08 am

Svart Lyser Tronen

Just a thought... what if you do a script that spams +duck and +jump?
Will that work?

OlikA

Edit history:

OlikA: 2009-09-17 11:22:08 am

2009-09-17 09:03:45 am

Quote from quadrazid:

Just a thought... what if you do a script that spams +duck and +jump?
Will that work?

The hard part of the jumpbug is the timing: less than 4 unit above the ground then instantly release duck and press jump at that very moment. So in one frame, you must -duck; and +jump. -duck only works, if you had +duck before it. This means, that even if you would make the most precise script of all time, it wouldn't work, because you would have to +duck in all "odd" frames and "-duck; +jump" in all "even" frames, not mentioning that you also have to -jump after making a +jump [no matter that you only wanted to "perform" a +jump and not making that action itself].

So my detailed answer would be this: No, you can't make a script that would let you just hold it and fall down from anywhere without hp loosing if you play at relatively "high" fps_max. However you can bind [or use autohotkey to release duck button and press jump button] the two action to one button, and press it at that very moment.

And I also suggest the HL engine based games speedrunners that if you want to train this, use that plugin that I also used in the demo [which is actually written for CS, so that's why it dumps errors and fake information about the ability, however the jumpbug-detection works great (for me)] which download link should be this, but at this moment it's not working: http://forums.alliedmods.net/showthread.php?t=80031

edit: i made a bind like this:
bind space "-duck; +jump; wait; -jump"
How I do jumpbug: jump with mouse2, hold duck with c, and press space at that very moment [no need to release c]. This helps me alot, made a nice [65.38% challange] jumpbug @ 1307 u/s fallspeed Wink

[quote="quadrazid"]
Just a thought... what if you do a script that spams +duck and +jump?
Will that work?
[/quote]
The hard part of the jumpbug is the timing: less than 4 unit above the ground then instantly release duck and press jump at that very moment. So in one frame, you must -duck; and +jump. -duck only works, if you had +duck before it. This means, that even if you would make the most precise script of all time, it wouldn't work, because you would have to +duck in all "odd" frames and "-duck; +jump" in all "even" frames, not mentioning that you also have to -jump after making a +jump [no matter that you only wanted to "perform" a +jump and not making that action itself].

So my detailed answer would be this: No, you can't make a script that would let you just hold it and fall down from anywhere without hp loosing if you play at relatively "high" fps_max. However you can bind [or use autohotkey to release duck button and press jump button] the two action to one button, and press it at that very moment.

And I also suggest the HL engine based games speedrunners that if you want to train this, use that plugin that I also used in the demo [which is actually written for CS, so that's why it dumps errors and fake information about the ability, however the jumpbug-detection works great (for me)] which download link should be this, but at this moment it's not working: [url=http://forums.alliedmods.net/showthread.php?t=80031]http://forums.alliedmods.net/showthread.php?t=80031[/url]

[b]edit[/b]: i made a bind like this:
[b]bind space "-duck; +jump; wait; -jump"[/b]
How I do jumpbug: jump with mouse2, hold duck with c, and press space at that very moment [no need to release c]. This helps me alot, made a nice [65.38% challange] jumpbug @ 1307 u/s fallspeed  ;)

Spider-Waffle

(user is banned)

2009-09-18 03:30:40 am

Don't think! feeeeeal

Oh nice, you actually got it to work in normal HL. Ya this would be great for the TAS. If more the coding stuff can be taken care I'd gladly fill an active role in this project.

This should be in the TAS thread btw.

OlikA

2009-09-18 01:55:24 pm

Well I'm a bit busy nowadays but I will surely help in the TAS project whenever I have time. btw I was in school and watched the diablo speedrun, and started to train jumpbug one day before, that's why I thought that I should check jumpbug in HL too, especially for TAS.

And I think that jumpbug works on any HL engine based games, where the single press [and instant release] of duck makes the player lift/rise above the ground. Won't work in Q2, but HL:BlueShift, HL:Opposing Forces, etc. Maybe James Bond 007: Nightfire?

rayvex

2009-09-19 04:54:44 am

hi

so this trick prevents you from taking falldamage?

Zhouy

2009-09-19 05:41:15 am

I'm a Half-Life runner ;)

Quote from rayvex:

so this trick prevents you from taking falldamage?

No, you die when you perform the trick which prevents you from taking falldamage.