The door scripts in OMSI is in fact very complicated. The animation is very realistic as well. But that kind of animation cannot be applied into the E500, as these new buses are using pushing doors.

One of the method is to use translate X and translate Y function.The door can translate to a new position along a straight line. In these early E500, the door is guided by a rotating axis, pushing out along a small curve.

In order to make this animation, I can only write a script that allows the door to go to some fixed points (in fact coordinates) when the door is opening.

First, open "script\door.osc" (Please backup the original door.osc)

Under "{macro:Door_Frame}
(M.L.Door0_Calc)
(M.L.Door1_Calc)
(M.L.DoorAftCalc)
(M.L.Door2_Calc)
(M.L.Door3_Calc)",
add the following scripts:
"(M.L.Door2_framex) door 2 stands for the left back door and door 3 stands for the right back door.
(M.L.Door2_framey)
(M.L.Door3_framex)
(M.L.Door3_framey)"

Before the line "{macro:Door2_Calc}"
add the following scripts:
"{macro:Door2_framex}
(L.L.door_2) (F.L.door2_xposition) (S.L.door2_positionx)
{end}

{macro:Door2_framey}
(L.L.door_2) (F.L.door2_yposition) (S.L.door2_positiony)
{end}"

Before the line "{macro:Door3_Calc}",
add the following scripts:
"{macro:Door3_framex}
(L.L.door_3) (F.L.door3_xposition) (S.L.door3_positionx)
{end}

{macro:Door3_framey}
(L.L.door_3) (F.L.door3_yposition) (S.L.door3_positiony)
{end}"

Then, open door_constfile.txt. This file is where we set the coodinates of the moving door.，加呢幾行，並係度改數字：
Add these scripts at the beginning of the file:
"Door2 Xpoition
[newcurve]
door2_xposition
***x position refers to the x translation of the door. It indicates how far the door is pushed away from the original position.
The first value of [pnt] refers to the status of the door. 0 = close, 1 = open, values in the middle = opening.
The second value is the translation you want to make. 0 = no translation, other values indicates the movement. As we are now working on x translation, the door will move out of the original position if you set the value larger than 0.

[pnt]
0
0
[pnt]
0.3
0.7
[pnt]
1
1

** I have set 10 x- coordinates for the door of ATE to make the animation more realistc.

Door2 Ypoition
[newcurve]
door2_yposition
*** y referes to the movement along y axis, mearning opening the door to the left or to the right.

[pnt]
0
0
[pnt]
1
1

Door3 Xpoition
[newcurve]
door3_xposition

[pnt]
0
0
[pnt]
1
1

Door3 Ypoition
[newcurve]
door3_yposition
[pnt]
0
0
[pnt]
1
1

"

After that, go to door_varlist.txt. Add the following 4 lines at the back.
"door2_positionx
door3_positionx
door2_positiony
door3_positiony"

Lastly, go to model.cfg, where you locate your object with this animation.
For each of the door, we need to add 2 "newanim", 1 for _positionx, 1 for _positiony.
The command for triggering the animation is changed to door2_positionx, door2_positiony, door3_positionx and door3_positiony.

The animation for x-translation becomes below:

[newanim]
origin_trans
0
0
0
origin_rot_x
90
origin_rot_y
0
origin_rot_z
0
anim_trans
door2_positionx
-0.11 <== you can adjust this value and see how far the door is translated.

You can then set the animation for y-translation with scripts similar to the above one.

Please be reminded that we do not need to set origin_trans as we are just doing translation, not rotating about an axis.

Here is the result after you set all the coordinates: