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[Insert_Gnome_Here]

Is the collision effect used in this thread ( http://www.bay12forums.com/smf/index.php?topic=137557.0 ) still in effect as of 40.24? I'm trying to get it to work but it may be entirely my own incompetence. Also, What kind of speedups can be achieved?

EDIT:
I ask because I'm trying to make a shotgun without impulse ramps that fires 1 z-level above the machinery and is as compact as possible.

[angelious]

supersonic minecarts...fucking dwarven engineering. everybody else is stuck in middle ages and we are making railguns.


eat shit rest of the world.

[Insert_Gnome_Here]

On the other hand, everyone else is living in nice hamlets and trees and stuff and my dwarves are working in the freezing, godforsaken middle of nowhere just to test out a weapon they are unlikely ever to fire in anger.

[Larix]

To the best of my knowledge (only did a basic roll call for it in the mid-.40 releases), it still works. However, it's a pretty fiddly thing to do, since it's exclusive to frontal collisions and has very exacting conditions (mass ratio, momentum ratio, build order of the minecarts, synchronised release). And since it simply conserves momentum, you can get the same punch by accelerating the heaviest cart you can get your fingers on to maximum ramp speed and hurl that at your foes. Even better, since load fully factors into momentum, you can load your *gold minecart* with native gold boulders and achieve enough momentum to send a cave dragon flying and get five extremely heavy high-speed projectiles as added damage dealers if you trigger the shotgun effect.

For easiest application, throw your cart into a three-ramp accelerator coil:

Code: [Select]

###     ###
#╔╗     #╔╗
#▲║     #╗║
#▲║     #╗║
#▲║     #╗║
#╚╝#    #╚╝#
#+      #+

▲ - ramps with track connections SW, "lean on" wall to the west, accelerate south
# - walls
+ - release door

The cart is pushed into the circuit or dropped onto one of the ramps via hatch or grate (never bridge! bridges throw carts around somewhat randomly), accelerates to max. ramp speed in about 400 steps and then stays at that speed forever. The actual activation of this coil-gun consists merely of opening the door, either by mechanism or by hapless intruder.

[Insert_Gnome_Here]

I consider impulse ramps a bit exploity, and am trying to make a shotgun without them.

[Skullsploder]

I consider impulse ramps a bit exploity, and am trying to make a shotgun without them.

Enjoy your madness :/ It requires colossal amounts of energy to build enough rollers to keep the carts returning at a decent enough speed to a high enough position to get a high enough velocity to actually kill shit with water. I think 22 ramps gets you to maximum velocity. That means 22 z-levels you have to pull the cart up each time you fire. IDK maybe it could work if you utilised a... DAMMIT NOW I HAVE TO GO MAKE AN UNEXPLOITY MINECART WATER CANNON.

[Insert_Gnome_Here]

That's why I'm trying to harness the conservation of momentum for the good of all dwarfkind. (except the test subjects, and random dwarves who stood in the way)

[NW_Kohaku]

I consider impulse ramps a bit exploity, and am trying to make a shotgun without them.

By that measure, isn't breaking the sound barrier through simply rolling a cart down a hill doing completely heinous things to the rational laws of physics?

I mean, if you're using rollers, you're using power, which means you're using dwarven perpetual motion machines, or possibly windmills that are capable of generating a continuous stream of power  even when built in a ditch with no access to moving air.  And levers work by quantum mechanism entanglement. ALL dwarven machines run on BS.

There is extremely little use for "legitimate" cart usage.  Minecarts were made for "exploits".  Considering how Toady has been changing the rules of many things like atom-smashers to only work on smaller creatures instead of not working at all, I think most of these "exploits" are considered fair by Toady, at least.

[Insert_Gnome_Here]

You can't break the sound barrier by rolling a cart down a hill in-game, there is a limit at which resistances overcome the velocity increase from falling.
Plus, avoiding impulse ramps makes my plan a bit more interesting to implement.

[Naryar]

Soon enough the sound barrier will be modeled in DF and we will kill goblins with supersonic sound bursts.

[Loud Whispers]

Soon enough the sound barrier will be modeled in DF and we will kill goblins with supersonic sound bursts.

Supercharged ramp, deaf dwarf, make him airborne... First the rails, then the skies - the Urist Air Force. It would be somewhat amusing as an adventurer to crash an aluminium minecart traveling beyond the speed barrier across entire continents, past highly confused bogeymen not actually sure if they just saw an adventurer.

[NW_Kohaku]

You can't break the sound barrier by rolling a cart down a hill in-game, there is a limit at which resistances overcome the velocity increase from falling.
Plus, avoiding impulse ramps makes my plan a bit more interesting to implement.

I know that you can't achieve supersonic speeds without collision exploits, but my point is that the sheer lack of modeling of many of the real-world physics of smashing a thin wooden box with another box travelling at hundreds of miles per hour still brutally violates physics in unspeakable ways. 

To be honest, I consider the bluemetal more cheaty than impulse ramps.

[Devin]

supersonic minecarts...fucking dwarven engineering. everybody else is stuck in middle ages and we are making railguns.


eat shit rest of the world.

The word 'Railgun' having never been applied quite so literally before.

[Magnus]

Can't you just get a dwarf to guide the minecart back up to the top of the ramp again? Why the need for all the machinery?

[Koremu]

Can't you just get a dwarf to guide the minecart back up to the top of the ramp again? Why the need for all the machinery?

What are you, some kind of Elf?