a Vehicle Component as an element

[JeViCo]

Hello everyone! How can i work with vehicle parts elements? For example i want to focus player's camera on certain part.

Also i want to attach other objects to vehicle part without using custom model's offsets.

Any ideas?

[IIYAMA]

They are not mta elements.

But there are functions that can get the position and rotation of them. I am very sure that you have already found them.

Find them if you haven't!

......... ............. ........... .............. ..........

After that.

The function getElementMatrix can help you with the vehicle orientation.

https://wiki.multitheftauto.com/wiki/GetElementMatrix

 

And on that same page there is something that creates a matrix the same way as the function above. But gives you also the ability to get the matrix without using an actual element.

(Last example)

function getElementMatrix(element)
    local rx, ry, rz = getElementRotation(element, "ZXY")
    rx, ry, rz = math.rad(rx), math.rad(ry), math.rad(rz)
    local matrix = {}
    matrix[1] = {}
    matrix[1][1] = math.cos(rz)*math.cos(ry) - math.sin(rz)*math.sin(rx)*math.sin(ry)
    matrix[1][2] = math.cos(ry)*math.sin(rz) + math.cos(rz)*math.sin(rx)*math.sin(ry)
    matrix[1][3] = -math.cos(rx)*math.sin(ry)
    matrix[1][4] = 1
    
    matrix[2] = {}
    matrix[2][1] = -math.cos(rx)*math.sin(rz)
    matrix[2][2] = math.cos(rz)*math.cos(rx)
    matrix[2][3] = math.sin(rx)
    matrix[2][4] = 1
	
    matrix[3] = {}
    matrix[3][1] = math.cos(rz)*math.sin(ry) + math.cos(ry)*math.sin(rz)*math.sin(rx)
    matrix[3][2] = math.sin(rz)*math.sin(ry) - math.cos(rz)*math.cos(ry)*math.sin(rx)
    matrix[3][3] = math.cos(rx)*math.cos(ry)
    matrix[3][4] = 1
	
    matrix[4] = {}
    matrix[4][1], matrix[4][2], matrix[4][3] = getElementPosition(element)
    matrix[4][4] = 1
	
    return matrix
end

 

With this matrix you can attach stuff with a render event.

 

Of course I understand that it might look a little bit complex. But it is really the only way without doing very complex calculations.

[thisdp]

5 hours ago, IIYAMA said:

They are not mta elements.

But there are functions that can get the position and rotation of them. I am very sure that you have already found them.

Find them if you haven't!

......... ............. ........... .............. ..........

After that.

The function getElementMatrix can help you with the vehicle orientation.

https://wiki.multitheftauto.com/wiki/GetElementMatrix

 

And on that same page there is something that creates a matrix the same way as the function above. But gives you also the ability to get the matrix without using an actual element.

(Last example)

function getElementMatrix(element)
    local rx, ry, rz = getElementRotation(element, "ZXY")
    rx, ry, rz = math.rad(rx), math.rad(ry), math.rad(rz)
    local matrix = {}
    matrix[1] = {}
    matrix[1][1] = math.cos(rz)*math.cos(ry) - math.sin(rz)*math.sin(rx)*math.sin(ry)
    matrix[1][2] = math.cos(ry)*math.sin(rz) + math.cos(rz)*math.sin(rx)*math.sin(ry)
    matrix[1][3] = -math.cos(rx)*math.sin(ry)
    matrix[1][4] = 1
    
    matrix[2] = {}
    matrix[2][1] = -math.cos(rx)*math.sin(rz)
    matrix[2][2] = math.cos(rz)*math.cos(rx)
    matrix[2][3] = math.sin(rx)
    matrix[2][4] = 1
	
    matrix[3] = {}
    matrix[3][1] = math.cos(rz)*math.sin(ry) + math.cos(ry)*math.sin(rz)*math.sin(rx)
    matrix[3][2] = math.sin(rz)*math.sin(ry) - math.cos(rz)*math.cos(ry)*math.sin(rx)
    matrix[3][3] = math.cos(rx)*math.cos(ry)
    matrix[3][4] = 1
	
    matrix[4] = {}
    matrix[4][1], matrix[4][2], matrix[4][3] = getElementPosition(element)
    matrix[4][4] = 1
	
    return matrix
end

 

With this matrix you can attach stuff with a render event.

 

Of course I understand that it might look a little bit complex. But it is really the only way without doing very complex calculations.

why not use oop?

https://wiki.multitheftauto.com/wiki/Matrix

[IIYAMA]

17 hours ago, thisdp said:

why not use oop?

https://wiki.multitheftauto.com/wiki/Matrix

Because I am not asking the user to learn also oop and everything is already available on that page.