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Author Topic: Super minecart push  (Read 3264 times)

Naryar

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Super minecart push
« on: May 14, 2012, 07:02:11 pm »
So I have just carved a small, 18-tile long rectangular track to test minecarts, and I have a -saguaro rib minecart- on it.

Made two stops, ordered it to be pushed when empty.

Miner with average strength comes, touches the minecart...

And sends it speeding along the cart, making three turns and a half.. meaning easily 60 tiles. With a single push, making a minecart make more than 50m on flat terrain ? That was quite a strong push !  And now my miner broke his arm with a minecart he himself "pushed". And another went to play "push the minecart" and broke the same miner's leg.

ARGH GOD DAMN IT I HAD JUST STARTED MY FORTRESS. I don't even have any beds and it was my best miner and only mechanic. AARGH

Conclusion - who says we need more than a carved track and a few minecarts to crush a goblin ambush ? Also, minecarts are FUN. And we don't need lead ones to shatter gobbos in half.
« Last Edit: May 14, 2012, 07:07:56 pm by Naryar »
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GoldenShadow

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Re: Super minecart push
« Reply #1 on: May 14, 2012, 07:14:39 pm »
Use Guide minecart instead of push until your railways can be secured. We don't allow pedestrians to stroll around on a freeway or a railroad, do we?
Guided carts are harmless and pass by dwarfs blocking their paths without any injury, but are much slower and tie up a dwarf guiding it. But a guided cart is still faster than a wheelbarrow since it hauls more stuff per trip.
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Naryar

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Re: Super minecart push
« Reply #2 on: May 14, 2012, 07:20:16 pm »
yeah i thought "pushing" would be pushing along, not kicking a minecart with grand power.

Anyways, seeing the speed at how a minecart  can go, dwarven railguns will be promising !
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rtg593

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Re: Super minecart push
« Reply #3 on: May 14, 2012, 07:53:08 pm »
Quote from: Naryar on May 14, 2012, 07:20:16 pm
yeah i thought "pushing" would be pushing along, not kicking a minecart with grand power.

Anyways, seeing the speed at how a minecart  can go, dwarven railguns will be promising !

Indeed... a cheap one from the start might not even need power, just dwarves to kick a few carts. Make a few stops in sequence, kick the front, kick the middle, kick the back. rapid fire down the same track.

Yes, I know, everyone is already thinking this:p
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davros

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Re: Super minecart push
« Reply #4 on: May 14, 2012, 08:32:30 pm »
I've combined a minecart with the bridge of Kazarad-Dum. It's as awsome as it sounds
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Putnam

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Re: Super minecart push
« Reply #5 on: May 14, 2012, 10:28:28 pm »
I think it has more something to do with the fact that saguaro ribs are light as hell with Uristocrat's changes--almost as light, if not as light as featherwood.
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dsi1

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Re: Super minecart push
« Reply #6 on: May 14, 2012, 10:52:37 pm »
Quote from: Putnam on May 14, 2012, 10:28:28 pm
I think it has more something to do with the fact that saguaro ribs are light as hell with Uristocrat's changes--almost as light, if not as light as featherwood.

Yeah, it's like you're kicking a paper mache object on wheels.

Try an iron cart or something, if that moves more than 30 tiles I'd be surprised.
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NW_Kohaku

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Re: Super minecart push
« Reply #7 on: May 14, 2012, 10:53:28 pm »
Just to point out, Toady said that for the purposes of minecart physics, he was assuming 2m*2m*3m tiles.  60 tiles means 120 meters of linear distance.

Saguaro rib has a density of 430, while metals like iron have 7850, and gold has 19320. 

Considering as I seriously doubt that Toady has modeled in inefficiencies in work applied due to an object already starting up with momentum, I'm guessing that a "push" is applied as a singular impulse like hitting the target with a mallet to get it going, and that momentum is divided out by mass. 

Since gold is 45 times denser than saguaro rib wood, I'm guessing Toady faced a choice - either make gold carts not be pushed even a single tile, or make saguaro rib carts get pushed like they're on maglev rails. 

He went with the latter. 

EDIT: correcting my math.
« Last Edit: May 14, 2012, 11:13:20 pm by NW_Kohaku »
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ShattererOfWorlds

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Re: Super minecart push
« Reply #8 on: May 14, 2012, 11:03:13 pm »
Quote from: NW_Kohaku on May 14, 2012, 10:53:28 pm
Just to point out, Toady said that for the purposes of minecart physics, he was assuming 2m*2m*3m tiles.  60 tiles means 30 meters of linear distance.

Should be 120 metres.
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NW_Kohaku

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Re: Super minecart push
« Reply #9 on: May 14, 2012, 11:12:57 pm »
Quote from: ShattererOfWorlds on May 14, 2012, 11:03:13 pm
Should be 120 metres.

... Yes... why did I divide instead of multiply...
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Quote from: Alkyon on March 30, 2010, 08:00:46 pm
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"And no Frankenstein-esque body part stitching?"
"Not yet"
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Naryar

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Re: Super minecart push
« Reply #10 on: May 15, 2012, 03:01:47 am »
Considering a standing dwarf is occupying one tile... then why are tiles 2x2x3m ? I always saw them as 1x1x2 since 40d.
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Will_Tuna

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Re: Super minecart push
« Reply #11 on: May 15, 2012, 04:58:07 am »
dwarf can stand together on 1 tile

logic for 2*2
not so for 1*1
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Putnam

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Re: Super minecart push
« Reply #12 on: May 15, 2012, 08:57:04 am »
Quote from: Will_Tuna on May 15, 2012, 04:58:07 am
dwarf can stand together on 1 tile

logic for 2*2
not so for 1*1

No, one dwarf has to lay down if they're both on a tile.
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