[Pottus]

@BroZeus - Doesn't seem correct too much math here is Nero's solution from some time ago.

pawn Код:

Float: GetPlayerCameraFacingAngle(playerid)
{
    new Float: vX, Float: vY;
    if(GetPlayerCameraFrontVector(playerid, vX, vY, Float: playerid))
    {
        if((vX = -atan2(vX, vY)) < 0.0) return vX + 360.0;
        return vX;
    }
    return 0.0;
}

Texture studio uses this in flymode when creating the texture viewer.