Attach Element To Element Help!

[Woovie]

So attachElementToElement works. But I am curious, how do I get coordinates relative to the object you a chillin by ? Like if I stand on a boat, I want to do /getpos relative to the boat.

Understand ?

[Twig]

http://development.mtasa.com/index.php? ... actElement

Get the position of that element and the player etc. etc.

[norby89]

http://development.mtasa.com/index.php?title=GetPlayerContactElement

Get the position of that element and the player etc. etc.

I don't think that's what he needs, it's not that easy as it sounds he'd like to attach the player so it remains in the same position

it involves rotations and trigonometry, I suggest looking for snippets on the Internet, you might find something

Edited February 3, 2008 by Guest

[Woovie]

That is handy. Thanks Twig. I will post if it works.

[norby89]

I think I understand what Twig means. Find the world positions of each object, get the difference, and that SHOULD be what I am looking for.

that would only work if the vehicle's rotation was 0, 0, 0

[Twig]

I never claimed to give the final answer, I just point people in the right direction

Also I know it's not that easy but tbh it's not really very hard either.

[norby89]

I never claimed to give the final answer, I just point people in the right direction

lol it's cool

what I meant is that if you only find the positions and get the differences and use them as offsets for attachElementToElement, it will probably attach you in the wrong position

I suck at explaining but I'll try anyway, in this pic the square is a vehicle and the dot is the player:

(pic a) the vehicle's position and rotation is ( 0, 0, 0 ) the player is located a little bit to the south, ( 0, -1, 0 ) which means

newX = x2 - x1 = 0 
newY = y2 - y1 = -1 
newZ =z2 - z1 = 0 

( 0, -1, 0 ) would be correct but if the vehicle is rotated 90 degrees to the right (pic b) the offsets would be..

newX = x2 - x1 = -1 
newY = y2 - y1 = 0 
newZ =z2 - z1 = 0 

and the player would be attached to the left of the vehicle because attachElementToElement still expects ( 0, -1, 0 )

you need something that calculates the right offsets regardless of the vehicles rotation

[Woovie]

Still would be fairly easy. I am working on the code ATM.