How do I get the distance between two GameObjects ?

[anon_78430655]

Hello,

How do I get the distance between two GameObjects in Untiy 3D ?

[DanielQuick]

http://unity3d.com/support/documentation/ScriptReference/Vector3.Distance.html

Thanks for searching before you posted. /sarcasm

[Cameron_SM]

If you don’t need the exact distance and just want to know if one vector is closer than another than using:

(a - b).sqrMagnitude

Is a lot faster.

[anon_78430655]

Then what about the Vector2.Distance ?
If Vector3.Distance is used to get the position of GameObjects in the scene,then how is the Vector2.Distance used then ?
Is Vector2.Distance also for 3D GameObjects in the scene or something else ?

[DanielQuick]

Vector3.Distance: checking distance across 3 axis.
Vector2.Distance: checking distance across 2 axis.

[flaminghairball]

Vector3.Distance can be used if you want to determine the distance between two gameobjects.
Vector2.Distance can be used if you’re making a 2D game, or for GUI elements(for example, determining how far the mouse traveled over a series of frames.)

[anon_78430655]

Thanks.

[anon_47046867]

@DanielQuick

http://unity3d.com/support/documentation/ScriptReference/Vector3.Distance.html

Thanks for searching before you posted. /sarcasm

Thanks for the link, even though the origional poster may not have searched, I did - and I got this answer. So please don’t have a go at someone for asking a question, and really if you don’t like it - just don’t bother answering - in this case though - thanks

[bigmisterb]

I can give a more contorted answer… Do a physics.Raycast (RaycastAll) from each object to the other, and see the hit that is on that object, then subtract the remainder of the distance. The middle part is the physical distance between colliders.

If distance wise, they are 50, but the colliders show 45 and 43, the physical distance is 50 - (50 - 45) - (50 - 43). (thats 42 btw)

Thus contorting the OP question even further. lol

[anon_72624563]

that’s a fine point to bring up, Big!

If we were trying to find the distance between two ENORMOUS spaceships in a game perhaps, the vector3.distance might not be useful.
find the distance between their surfaces instead. Smart

[samloeschen]

var dist = Vector3.Distance(objectA.transform.position, objectB.transform.position);

@anon_72624563

that’s a fine point to bring up, Big!

If we were trying to find the distance between two ENORMOUS spaceships in a game perhaps, the vector3.distance might not be useful.
find the distance between their surfaces instead. Smart

just get the extents of their bounds and subtract that from the distance

[bigmisterb]

@samloeschen

var dist = Vector3.Distance(objectA.transform.position, objectB.transform.position);

just get the extents of their bounds and subtract that from the distance

Ah, but that wont be exact enough, since the bounds are nothing but big boxes. . We HAVE to be really, REALLY anal about everything… lol

[samloeschen]

@bigmisterb

Ah, but that wont be exact enough, since the bounds are nothing but big boxes. . We HAVE to be really, REALLY anal about everything… lol

In that case, possibly the best solution might be to iterate through all the vertices in objectb that are hit by a sphere cast coming from objecta, and average their distances? :3

[DanielQuick]

@anon_47046867

Thanks for the link, even though the origional poster may not have searched, I did - and I got this answer. So please don’t have a go at someone for asking a question, and really if you don’t like it - just don’t bother answering - in this case though - thanks

Haha, its really interesting to read something I wrote so long ago. I sure have changed

[gooncorp]

doesnt sound like you guys know what your talking about. he is asking a simple question. why dont you explain it a bit better. thanks for pointing out the obvious like what the commands mean LOL.

dont you need to add tags to things? why all the jargan with a simple command in script like object distance.

explain it a bit better. first you have to name these objects do you not? and dont just cite some stupid paragraph off their scripting reference. i want real code that works.

how come i cant do this?

if (Vector3.Distance (object1.transform.position, object2.transform.position) > 1) {
print (“worked”);
}

and if i can how the hell do i name the objects object1 and object2 ?

PLEASE EXPLAIN AND NO CRAP ANSWERS PLEASE

if i wanted to do some huge procedural script to find a relative distance i may as well be coding in C
and not a game engine for crying out loud. sorry to be a bitch but this is slowing me down.

[npsf3000_1]

@gooncorp

and dont just cite some stupid paragraph off their scripting reference.

If you don’t want to use the scripting reference then you do not want to be a programmer.

Consider moving your post to the commercial section and offer an appropriate remuneration, or collab if the remuneration is non-financial.

Thank you for your courteous behavior and obvious effort expended. It’s good to know our time is valued.

/RANT

Edit: A reliable source has informed me that Gooncorp may be a reference to a group of trolls. Given the demonstrated behavior that’s not a surprise. I suggest ignoring, or if you really must, reporting.

[Dabeh]

@gooncorp

doesnt sound like you guys know what your talking about. he is asking a simple question. why dont you explain it a bit better. thanks for pointing out the obvious like what the commands mean LOL.

dont you need to add tags to things? why all the jargan with a simple command in script like object distance.

explain it a bit better. first you have to name these objects do you not? and dont just cite some stupid paragraph off their scripting reference. i want real code that works.

how come i cant do this?

if (Vector3.Distance (object1.transform.position, object2.transform.position) > 1) {
print (“worked”);
}

and if i can how the hell do i name the objects object1 and object2 ?

PLEASE EXPLAIN AND NO CRAP ANSWERS PLEASE

if i wanted to do some huge procedural script to find a relative distance i may as well be coding in C
and not a game engine for crying out loud. sorry to be a bitch but this is slowing me down.

I hope your name doesn’t come from goons from somethingawful. Because if it is, then that would explain your attitude and your soon to be expected ban.

[wccrawford1]

@bigmisterb

I can give a more contorted answer… Do a physics.Raycast (RaycastAll) from each object to the other, and see the hit that is on that object, then subtract the remainder of the distance. The middle part is the physical distance between colliders.

If distance wise, they are 50, but the colliders show 45 and 43, the physical distance is 50 - (50 - 45) - (50 - 43). (thats 42 btw)

Thus contorting the OP question even further. lol

Wouldn’t that be 38?

Logically, the distance from the center of A to the nearest point (on the ray to B) of A is 5. (50-45) From the center of B to the nearest edge of B is 7. (50-43) So the distance from the nearest edge of A to the nearest point of B is 38. (50 - (5 + 7))

[anon_21097770]

Not to be a dink, but there’s a few corrections to be made with regards to some of the distance finding algorithms suggested in this thread

1. Finding the distance between the two large spaceships WOULD in fact be best accomplished by using the bounds of their bounding boxes - two large spaceships would have their collision meshes made up of several primitives, not just a single box, thus eliminating the issue of accuracy. Which leads on to…

2. Finding the distance between two large spaceships by iterating through each vertex would not only be wrong because the closest point might occur on an edge, but also redundant because the ship would have a far more simple collision mesh that you would use instead.

Just sayin’

Oh and while I’m here, if some of you could find the time to peruse my thread about passing data between scenes:

http://forum.unity3d.com/threads/118345-Sending-data-from-one-scene-to-the-next

I would be most thankful!

[KelsoMRK]

@""

sorry for the attitude guys. i figured out the paradigm.

everything else has been a breeze since figuring out that not only everything needs to be variabilized, and scripts are generally local to game objects, but the biggest thing which is GAME OBJECTS NEED TO BE PHYSICALLY DROPPED ONTO THE VARIABLE SLOT AFTER BEING TAGGED.

just to explain my problem and why i got so frusterated:

all the scripting command references are great but what was really difficult was not the scripting ( hell its all the same ), but the defining and tagging of game objects to be pointed from those scripts, this was my major issue.
i wrote all the scripting correctly the first time it just didnt work because i had not dropped the game object onto the variable slot of the script; man this had me stumped for DAYS!!! DAYS!!! when i asked for help all people did was tell me the code i was already using lol; i had tried tagging objects, calling them by name etc. i eventually figured it out from a youtube video.

even though that one small setback kept me behind for days i have made major progress since. i’ve been writing code like theres no tommorow.

again i apologize for my attitude, but i if i didnt want to learn i wouldnt take the time to post in here. hopefully now i can contribute to this forum.

take it easy guys:
GOONCORP

btw here is a video of my game:

http://www.youtube.com/watch?v=caFDvgnPXNs&hd=1

Are you just trolling for youtube hits? You’ve posted the same ridiculous rant in 2 ancient threads and then apologized in the same manner in both. Not the best way to make a first impression my friend. I, personally, won’t be watching any of your videos.