Forged Alliance Forever

Re: Need help calculating a location

2015-05-11T17:52:27+02:00

Considering you have been told on multiple occasions that General Discussion is in fact NOT the place to post mod related content and you have repeatedly chosen to ignore these warnings while also displaying a general lack of respect your account has been temporarily suspended. This thread will be locked, feel free to try again tomorrow with a new thread.

Statistics: Posted by Legion Darrath — 11 May 2015, 17:52

Re: Need help calculating a location

2015-05-11T16:17:40+02:00

Legion Darrath wrote:
Moved to mods.

Gee thanx for the assist... No idea what the world would of done with you at that moment in time. (sarc)

Statistics: Posted by Resin_Smoker — 11 May 2015, 16:17

Re: Need help calculating a location

2015-05-11T16:06:58+02:00

Moved to mods.

Statistics: Posted by Legion Darrath — 11 May 2015, 16:06

Re: Need help calculating a location

2015-05-11T15:15:32+02:00

Here is what I've written thus far...

This not only gets the entities at the location but also validates and sorts entities by range.

Any suggestions?

Note: This will be used for the chain-lightning revamp.

Resin

---Code---

Spoiler: show

Statistics: Posted by Resin_Smoker — 11 May 2015, 15:15

Re: Need help calculating a location

2015-05-11T13:35:35+02:00

there is a lua/utilities.lua, should be helpful

something like this might work

Code:: A + NormalizeVector( GetDirectionVector( v1, v2 ) )*length

Statistics: Posted by Myxir — 11 May 2015, 13:35

Re: Need help calculating a location

2015-05-11T13:21:14+02:00

The problem is with the specified distance not meeting my expectations.

Resin

Statistics: Posted by Resin_Smoker — 11 May 2015, 13:21

Re: Need help calculating a location

2015-05-11T10:28:37+02:00

Define unit(v) = v/sqrt(v.x^2 + v.y^2 + v.z^2). The position you want is B + unit(B-A)*given_distance.

Statistics: Posted by Vee — 11 May 2015, 10:28

Re: Need help calculating a location

2015-05-11T05:20:47+02:00

Shouldn't this be easy?

Find the difference between the X and Z values for the positions of the units. Use that to calculate the distance. Then calculate two ratios, one for the X value over the distance and one for the Z value over the distance. (These would be called "Sine" and "Cosine" in trigonometry). Then pull whatever your set distance between unit B and position D is (I assume it's a fixed value?) and multiple these ratios times the set distance, and you have your X and Z position deviations from unit B.

Statistics: Posted by FunkOff — 11 May 2015, 05:20

Re: Need help calculating a location

2015-05-11T05:17:05+02:00

Isn't this fairly trivial?

Given a vector from A to B, you can obtain a vector from A to a point beyond B by multiplying it by a scalar.

It's also not quite true that a vector is "a direction": a vector represents both direction and magnitude.

Statistics: Posted by ckitching — 11 May 2015, 05:17

Re: Need help calculating a location

2015-05-11T04:22:41+02:00

What do you want help with? Developing the coordinate for D, or actually issuing a command to one of the units?

Statistics: Posted by IceDreamer — 11 May 2015, 04:22

Need help calculating a location

2015-05-11T03:41:07+02:00

I've two units with known locations.

What i want to do is use both units locations to create a vector (direction) and then set a new location a specific distance along said vector.

Example:

Unit A Position.
Unit B Position.
New Destination along the same vector a given distance away.

A ------ B -----> D

While i can easily calculate a vector from two points, creating a new destination from said vector and a specified distance has eluded me thus far.

Thanks in advance!

Resin

Statistics: Posted by Resin_Smoker — 11 May 2015, 03:41