Update input event to 3.0

tutorials/inputs/inputevent.rst

@@ -9,9 +9,32 @@ What is it?
 Managing input is usually complex, no matter the OS or platform. To ease
 this a little, a special built-in type is provided, :ref:`InputEvent <class_InputEvent>`.
 This datatype can be configured to contain several types of input
-events. Input Events travel through the engine and can be received in
+events. Input events travel through the engine and can be received in
 multiple locations, depending on the purpose.
 
+Here is a quick example, closing your game if the escape key is hit:
+
+::
+
+    func _unhandled_input(event):
+        if event is InputEventKey:
+            if event.pressed and event.scancode == KEY_ESCAPE:
+                get_tree().quit()
+
+However, it is cleaner and more flexible to use the provided :ref:`InputMap <class_InputMap>` feature,
+which allows you to define input actions and assign them different keys. This way,
+you can define multiple keys for the same action (e.g. they keyboard escape key and the start button on a gamepad).
+You can then more easily change this mapping in the project settings without updating your code,
+and even build a key mapping feature on top of it to allow your game to change the key mapping at runtime!
+
+You can setup your InputMap under **Project > Project Settings > Input Map** and then use those actions like this:
+
+::
+
+    func _process(delta):
+        if Input.is_action_pressed("ui_right"):
+            # Move right
+
 How does it work?
 -----------------
 
@@ -67,20 +90,7 @@ Anatomy of an InputEvent
 anything and only contains some basic information, such as event ID
 (which is increased for each event), device index, etc.
 
-InputEvent has a "type" member. By assigning it, it can become
-different types of input event. Every type of InputEvent has different
-properties, according to its role.
-
-Example of changing event type.
-
-::
-
-    # create event
-    var ev = InputEventMouseButton.new()
-    # button_index is only available for the above type
-    ev.button_index = BUTTON_LEFT
-
-There are several types of InputEvent, described in the table below:
+There are several specialised types of InputEvent, described in the table below:
 
 +-------------------------------------------------------------------+--------------------+-----------------------------------------+
 | Event                                                             | Type Index         | Description                             |