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//Make an empty game object and call it "Door"
//Rename your 3D door model to "Body"
//Parent a "Body" object to "Door"
//Make sure thet a "Door" object is in left down corner of "Body" object. The place where a Door Hinge need be
//Add a box collider to "Door" object and make it much bigger then the "Body" model, mark it trigger
//Assign this script to a "Door" game object that have box collider with trigger enabled
//Press "f" to open the door and "g" to close the door
//Make sure the main character is tagged "player"
 
// Smothly open a door
var smooth = 2.0;
var DoorOpenAngle = 90.0;
private var open : boolean;
private var enter : boolean;
 
private var defaultRot : Vector3;
private var openRot : Vector3;
 
function Start(){
defaultRot = transform.eulerAngles;
openRot = new Vector3 (defaultRot.x, defaultRot.y + DoorOpenAngle, defaultRot.z);
}
 
//Main function
function Update (){
if(open){
//Open door
transform.eulerAngles = Vector3.Slerp(transform.eulerAngles, openRot, Time.deltaTime * smooth);
}else{
//Close door
transform.eulerAngles = Vector3.Slerp(transform.eulerAngles, defaultRot, Time.deltaTime * smooth);
}
 
if(Input.GetKeyDown("f") && enter){
open = !open;
}
}
 
function OnGUI(){
if(enter){
GUI.Label(new Rect(Screen.width/2 - 75, Screen.height - 100, 150, 30), "Press 'F' to open the door");
}
}
 
//Activate the Main function when player is near the door
function OnTriggerEnter (other : Collider){
if (other.gameObject.tag == "Player") {
enter = true;
}
}
 
//Deactivate the Main function when player is go away from door
function OnTriggerExit (other : Collider){
if (other.gameObject.tag == "Player") {
enter = false;
}
}