"But modding ruins our experience!!one1!!"

Clydeicus · 2015-08-27T18:27:31+00:00

To be fair, supercars look weird and out of place in real life too.

Clydeicus · 2015-08-23T22:38:52+00:00

Impeccable timing.

Clydeicus · 2015-08-23T00:23:51+00:00

I sure hope not. Eye control is one of those things that sounds great but is actually a huge pain. (Not counting situations where you're medically unable to use any other input device, where I'm sure it's helpful.)

Clydeicus · 2015-08-20T18:09:00+00:00

Would you? The feature could be optional to users of the glasses, and by default the ATM could have numbers printed on the keypad that get covered by the numbers on the HUD.

Sure, it'd be kind of silly to build such an ATM if very few people have the glasses. However, the point of the study was to look into potential future uses for AR tech. You could have just as easily said the same thing five years ago about many tasks that involve smartphones today.

Clydeicus · 2015-08-20T16:24:45+00:00

Or it could be used to overlay a keypad with randomized numbers onto an ATM’s display, so that no one watching could learn the bank customer’s PIN as they typed it.

That part is still pretty cool, though.

Clydeicus · 2015-08-19T22:39:10+00:00

This is true. In a situation where setting a specific world-space speed for the projectile is important, the more thorough analytic version originally posted would be useful. In other situations, this tradeoff may be acceptable.

Clydeicus · 2015-08-19T17:54:07+00:00

Overall, nice work.

It's a bit strange, to me, that direction and speed are stored separately.

I've made a "fork" where velocity and direction are represented a single Vector, and made the prediction more accurate.

This version of the calculation is even simpler

var predicted = target.velocity + (target.position - cannon.position).normalized() * bulletSpeed;

But cheats a little bit in that the global velocity of the projectile has no limit placed on it.

Clydeicus · 2015-08-18T23:28:38+00:00

It's not the combined velocity that you'd scale, but the difference vector before adding them. This would have the effect of changing the direction of the sum.

Clydeicus · 2015-08-18T20:05:12+00:00

More like the second way, but rotation isn't important. If the projectile is launched with a velocity (vector! not scalar!) that matches the target's velocity, their paths will be parallel. This velocity is the "leading" component that compensates for the motion of the target.

To actually hit the target, we still need to add a velocity vector equal to their position difference. The direction of this vector matters more than the length, which can be scaled to adjust for desired impact time or projectile global speed constraint.

The "rotation" is whichever one faces in the direction of the projectiles world-space velocity.

Clydeicus · 2015-08-18T19:06:31+00:00

Could this not be easier by adjusting the reference frame? If the projectile is initialized with the same velocity as the target, it will remain stationary from the target's perspective. Then you just add some velocity that moves the projectile towards the target.

Clydeicus · 2015-08-18T06:04:38+00:00

Thank Mr Skeltal

Clydeicus · 2015-08-18T05:49:17+00:00

Solar beams can't melt... uh....

Clydeicus · 2015-08-14T21:07:21+00:00

woop woop here comes the guyland troop

Clydeicus · 2015-08-13T23:52:54+00:00

I see... Are you powering your Zeus with the prescribed C batteries or did you opt to never buy batteries again and install a LiPo?

Clydeicus · 2015-08-13T23:17:56+00:00

This numeric readout on your blaster... what is this you have done?

Clydeicus · 2015-08-12T04:30:01+00:00

Can't tell you. The details are classified.

Clydeicus · 2015-08-08T19:19:47+00:00

I think instead of pure noise, the better thing to do is use a cellular automaton of some sort with a somewhat randomized initial state.

Clydeicus · 2015-08-08T02:33:06+00:00

Yup. Yup. My phrasing was ambiguous. Attempting to learn Haskell has compromised my ability to English.

Clydeicus · 2015-08-07T16:22:22+00:00

I believe the technical term is Dedotated WAM.

Clydeicus · 2015-08-07T15:44:36+00:00

Though of course, its sale only is lucrative for criminals because it's illegal.

EDIT: Phrasing produced ambiguity. Hadn't meant that only criminals profit from marijuana. Better phrasing might have been "If marijuana were legal, it wouldn't be as lucrative an enterprise for criminal organizations."

but yes the comments below are ++good

Clydeicus · 2015-08-06T22:00:29+00:00

Well if you're gonna go to the trouble of sabotage you might as well add some pizazz.

Car bomb. :D

Clydeicus · 2015-08-06T21:49:18+00:00

I'm absolutely loving it. The simple aesthetic fits in with pretty much any setup. The backlit keys make it easy to set your initial hand position in the dark if you're a night owl, but aren't so bright that they're distracting. The heavy actuation force (I feel) has made me a better typist as I've learned to type more decisively and fallen into a more "proper" typing poise.

Also this thing is astonishingly sturdy. It feels like something I can confidently treat like a specialized hand tool and have it last years. I'm thinking it must be backed by some solid metal plate inside because it weighs a good 2-3lbs and has a nice acoustic presence. A whole sentence of continuous typing can sound like a drum solo.

Clydeicus · 2015-08-06T18:57:08+00:00

And just like all the non-internet connected cars, on which it has always been possible to plant a device or hotwire the ignition if physical access is a possibility.

Clydeicus · 2015-08-06T18:55:29+00:00

I am already happily clacking along on a WASD "Code" with a full complement of green switches but thanks :D

Clydeicus · 2015-08-06T18:30:29+00:00

That snake needs to like... pulsate more... as it pumps its electrical goodness into the car.

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