always flip car in front direction

[xTravax]

hey guys how could i always flip a car in front direction? i mean look like here

car is currently in certain rotation while at wallride, and when it hits the pickup it gets correct, and front direction rotation

how could i achieve this front direction thing nevertheless of the vehicle state(whether its on roof, half on roof or not on roof at all) ?

In race code it uses some vectors and/or element/camera matrix to calculate this, but i don't really understand it..

Thanks in advance

[Noki]

getElementRotation, then just use setElementRotation to set the rotation.

[LabiVila]

Just to let you know, if you're doing a race server, the race pickup automatically turns your car as you're actually wanting

[xTravax]

Labivilla i'm using my own race.

@Noki

that rotation thing works sometimes and sometimes doesn't. The vehicle doesn't get front directioned and 'flipped' like in the video, that's probably because setElementRotation works in some cases, and in some not, and maybe that's why race uses matrices/vectors, but i don't know how to do those.

also, the thing is that if car is in air, and currently rotated like it's on roof, it should rotate the vehicle to front and not on roof normally, but i dont' know how to achieve that.

edit:

i believe this is how it's done in race but i don't understand it

function directionToRotation2D( x, y ) 
    return rem( math.atan2( y, x ) * (360/6.28) - 90, 360 ) 
end 
  
function alignVehicleWithUp() 
    local vehicle = g_Vehicle 
    if not vehicle then return end 
  
    local matrix = getElementMatrix( vehicle ) 
    local Right = Vector3D:new( matrix[1][1], matrix[1][2], matrix[1][3] ) 
    local Fwd   = Vector3D:new( matrix[2][1], matrix[2][2], matrix[2][3] ) 
    local Up    = Vector3D:new( matrix[3][1], matrix[3][2], matrix[3][3] ) 
  
    local Velocity = Vector3D:new( getElementVelocity( vehicle ) ) 
    local rz 
  
    if Velocity:Length() > 0.05 and Up.z < 0.001 then 
        -- If velocity is valid, and we are upside down, use it to determine rotation 
        rz = directionToRotation2D( Velocity.x, Velocity.y ) 
    else 
        -- Otherwise use facing direction to determine rotation 
        rz = directionToRotation2D( Fwd.x, Fwd.y ) 
    end 
  
    setElementRotation( vehicle, 0, 0, rz ) 
end 

[GTX]

AlignVehicleWithUp function does that for you. Just change g_Vehicle variable.

[xTravax]

AlignVehicleWithUp function does that for you. Just change g_Vehicle variable.

It would work? I don't see where would ':' functions be defined though..

[GTX]

They are in default race utils_client.lua I guess.

[xTravax]

They are in default race utils_client.lua I guess.

Didn't find it there. I thought that this was in oop or something because of ':' stuff.

I will keep digging because i'm not using the default race gamemode, and this allign function could help me a lot.

Anyway, thanks. If I run into some kind of problem, i'll make a post below.

edit: for anyone looking for that Vector3D function location, it's in _commons.lua file in race gamemode.