anchor.diff:  
   Choose one or several key/mouse events for the interaction. We use `KeyTrigger`, `MouseAxisTrigger`, `MouseButtonTrigger`, `JoyAxisTrigger` and `JoyButtonTrigger` constants from the `com.jme3.input.controls` package. 
   
  -*Note:* The MouseAxis and JoyAxis triggers go along the X axis (right/left) or Y axis (up/down). These Triggers come with extra booleans for the negative half of the axis (left, down). Remember to write code that listens to the negative (true) and positive (false) axis!
  +[NOTE]
  +====
  +The MouseAxis and JoyAxis triggers go along the X axis (right/left) or Y axis (up/down). These Triggers come with extra booleans for the negative half of the axis (left, down). Remember to write code that listens to the negative (true) and positive (false) axis!
  +====
  +
   [cols="2", options="header"]
  +
   |===
   
   a| Trigger 
  
positive.code: a| KeyTrigger(KeyInput.KEY_SPACE) 
  
  a| Keyboard: Shift 
  a| KeyTrigger(KeyInput.KEY_RSHIFT), +KeyTrigger(KeyInput.KEY_LSHIFT) 
  
  a| Keyboard: F1, F2, … 
  a| KeyTrigger(KeyInput.KEY_F1) … 
  
  a| Keyboard: Return, Enter 
  <a| KeyTrigger(KeyInput.KEY_RETURN), +KeyTrigger(KeyInput.KEY_NUMPADENTER)  
  
  a| Keyboard: PageUp, PageDown 
  a| KeyTrigger(KeyInput.KEY_PGUP), +KeyTrigger(KeyInput.KEY_PGDN) 
  
  a| Keyboard: Delete, Backspace 
  a| KeyTrigger(KeyInput.KEY_BACK), +KeyTrigger(KeyInput.KEY_DELETE) 
  
  a| Keyboard: Escape 
  a| KeyTrigger(KeyInput.KEY_ESCAPE) 
  
  a| Keyboard: Arrows 
  a| KeyTrigger(KeyInput.KEY_DOWN), +KeyTrigger(KeyInput.KEY_UP) +KeyTrigger(KeyInput.KEY_LEFT), KeyTrigger(KeyInput.KEY_RIGHT) 
  
  a| Joystick Button: 
  a| JoyButtonTrigger(0, JoyInput.AXIS_POV_X), +JoyButtonTrigger(0, JoyInput.AXIS_POV_Y) ? 
  
  a| Joystick Movement: Right 
  a| JoyAxisTrigger(0, JoyInput.AXIS_POV_X, true) 
  
negative.code: **  The mapping name of the triggered action.
  **  A boolean whether the trigger is still pressed or has just been released.
  **  A float of the current time-per-frame as timing factor
  
  [source,java]
  ----
  