[Jimmy]

Excellent. That works pretty because I'm pretty sure all the moon levels take place in that giant crater on the moon.

[Fox]

Robman, on 02 February 2015 - 03:27 PM, said:

It appears your solar system was dropped on it's head as a baby.

:x

[oasiz]

Got this idea in my head while having a drink in a bar and seeing the jukebox.
Instead of explaining why I think about duke mapping when drinking, I'll just drop this video.




Seems that the end result is pretty decent, although it needs a SFX with repeating flag, would work for mods I guess.
Probably with some multi-switch combos one could have a few tracks in this.

I have no clue if this has been done on a map yet.

[Jblade]

Ok, I at first thought "how did he get the volume to fade? must of added a custom sound or something..." and then I saw the trick at the end Pretty ingenious.

[Daedolon]

Use the four-way toggle and get wild.

[Micky C]

I did guess 2-way trains since it only used two tracks.

[Daedolon]

You can have an unlimited amount of songs with just one switch if you use enough trains and some silly planning.

[oasiz]

Yea, trick itself is pretty simple. Just needs some caution when choosing sfx as it needs a repeat flag to be on.
I didn't want to start experimenting with +2 tracks yet but it should be doable.

Another possible scenario: Some action situation (trapped in a room) and a music piece would fade in/out for the duration of the combat.

Also having these overlap normal geometry (in a different "portal universe") one could even make single/multi use sounds that move around (helicopter passing by, etc..), some clever stereo panning could add quite a bit to some "scripted events" or foreshadowing stuff in the back.

[Fox]

[Robman]

^ looks like a stereogram.

[oasiz]

Some of those panning examples, bunch of cool audio tricks that could be done with proper 2-way train.
Has any map utilized these ?

How cool would it be to hear like 20 missles approach you from all sides while syncing to some quake and explosion sounds, all just smoke and mirrors.

Anyway, gonna leave this video here and not just gonna spam with every use case imaginable

I really believe that sounds (especially positional) have a ton of potential.

[Robman]

^ Christian Doppler would be proud.

[oasiz]

Micky mentioned Xvel earlier on eduke IRC so I decided to experiment around and came up "single use, instant, any speed 2way train"
Apparently there is little to no documentation on X(yz)Vel so let's change that a bit !

!! This only works once and starts instantly after spawning !!





What happens:
-> Regular 2-way train, SE sprite has Xvel set to 20.
-> Another 2way train that acts as a timer.


(Theory) Starting the map, having xvel already at 20 makes the engine set the 2way train speed at whatever is specified in Xvel, thinking that it was already launched away.
Now while the train is moving on it's own, it's still waiting for commands on stand-by and not caring about locators. Normally it would perform the ROTT "I'm free!" trick if nothing stops it..
A switch could make it snap out and enter the regular 2way train mode.. However we can't rely on the player to ever stop it.

Long story short, setting another 2way train that gets automatically triggered on spawn, end result: A moving platform/sector that stops at a set position (If it's not touching a locator yet then it will accelerate to regular 2way train speed).

As always, use cases: SW EP1-like car crash, SW EP2 boat ride, Blood boat ride.
Limitation is that it can only go where-ever a normal 2way train would, also single use and starts instantly on spawn.
Unlike a regular 2-way train, there is no acceleration and it wont slow down (stops instantly) if timed to stop on top of a locator.

[Daedolon]

That's an insanely important find, super amazing.

[Micky C]

Glad I could help.

Still a little foggy on the actual stopping part though. Is there an example map you could post up?

[TheDragonLiner]

Isn't there a map that already has a one use 2 way train ?
Like "Tribut to Action Two" in DukePlus ; although we don't start the level on it we happen to travel one. Or maybe I didn't understand the thing well enough :/

[Micky C]

That was probably just activated by a touchplate. Although I don't remember there being a two way train in that one? Haven't played the original for ages though.

The key thing about this is that it can be ANY speed.

[oasiz]

There are a few maps with single use 2-way trains, even E2L2 already has this.

But like Micky stated, speed is the key here.

Regular 2way trains reach something like 100km/h almost in an instant, making shorter distances almost impossible to do... unless you don't mind the ride being over in like ~2 seconds

Also this one has no acceleration, making it feel like you have been in constant movement since the spawn.
If "activation" is mistimed, you can also make it accelerate to a regular 2way train speed (slow progression before getting launched?)

Quite many cool things that this enables, slower moving sectors are one of the very few things that don't really exist in duke.

[Fox]

oasiz, on 17 February 2015 - 11:52 PM, said:

Regular 2way trains reach something like 100km/h almost in an instant

A two-way train maximum velocity is of 256 units per tic. Assuming 512 units equal 1 meter, that makes 15 meters per second, or 54 kilometers per hour.

[TheDragonLiner]

Oh I see, so I misunderstood it, I didn't get the fact speed was the main point ^^;

Mea Culpa

[Steve 64]

oops wrong fourm

[oasiz]

Fox, on 18 February 2015 - 12:16 AM, said:

A two-way train maximum acceleration is of 256 units per tic. Assuming 512 units equal 1 meter, that makes 15 meters per second, or 54 kilometers per hour.

Damn you and your knowledge !

[Fox]

I am obsessed with length measuring of this game.

[Micky C]

Fox, on 18 February 2015 - 12:16 AM, said:

A two-way train maximum acceleration is of 256 units per tic. Assuming 512 units equal 1 meter, that makes 15 meters per second, or 54 kilometers per hour.

Surely you mean velocity not acceleration.

According to RTCM 512 units is 1.446m. Assuming there's 30 tics per second like you did, that makes it approximately 21.7m per second, or 78.1 km/hour.
http://dukertcm.com/...ild-scales.html

[Fox]

That's roughly based on the height of the player sprite, but it's very unrealistic. While Duke official height is 1.94 meters, his sprite is relatively small compared to structures or other characters. I estimated one meter for every 512 units based on the height of doors and office buildings.

[Micky C]

If that's the case then it's very unscientific that he took the values to 3 decimal places implying accuracy.

[Fox]

That's because the value is the result of a rule of three with Duke official height. However I am not sure where he took the value of 43px from.

The standard heights for doors and a office building floor are of about 2 and 4 meters respectively, so I believe it's a reasonable estimative that 512 units (or 8192 z units) represents 1 meter. Of course this is a cartoonish game and there is no "true" scale.

[Corvin]

43px is the actual height of the hit box, its just short of the sprite itself. Most other BUILD Games use the entire height of the sprite, duke does not, so his head might clip at 11 key presses, but he will pass through no problem.

If I believed there was no scale I wouldn't have made that doc. For skeptics I also included a section for standards via key presses; Meaning if you want you can ignore the FT and Inches.

[Mblackwell]

Fox, on 18 February 2015 - 02:26 AM, said:

That's because the value is the result of a rule of three with Duke official height. However I am not sure where he took the value of 43px from.

The standard heights for doors and a office building floor are of about 2 and 4 meters respectively, so I believe it's a reasonable estimative that 512 units (or 8192 z units) represents 1 meter. Of course this is a cartoonish game and there is no "true" scale.

To me, it seems that Duke is arranged around the basic idea of a 64x64 tile (in EditArt) so that would make sense.

Note that Duke is 40x82.

(edit: And then scaled down I believe to xrepeat/yrepeat 40x40... or about 25x52)

[Robman]

This could be a dumb question but has anyone ever made a roof top voxel sprite before? Like a peaked roof. Just make a house bottom and slap a roof voxel on it.
Would be stretched out most times I guess, anyway.. just a thought.