# Class cocos.actions.interval_actions.MoveBy

        base_actions.Action --+
                              |
    base_actions.IntervalAction --+
                                  |
                             MoveTo --+
                                      |
                                     MoveBy

Moves a CocosNode object x,y pixels by modifying it's position attribute. x and y are relative to the position of the object. Duration is is seconds.

Example:

    # Move the sprite 50 pixels to the left in 8 seconds
    action = MoveBy( (-50,0), 8 )
    sprite.do( action )

## Methods

| init(self, delta, duration=5) Init method.
| start(self)
| __reversed__(self)
| __add__(self, action) sequence operator - concatenates actions action1 + action2 -> action_result where action_result performs as: first do all that action1 would do; then perform all that action2 would do (Inherited from cocos.actions.base_actions.Action)
| __init__(self, *args, **kwargs) dont override - use init (Inherited from cocos.actions.base_actions.Action)
| __mul__(self, other) repeats ntimes the action action * n -> action_result where action result performs as: repeat n times the changes that action would do (Inherited from cocos.actions.base_actions.IntervalAction)
| __or__(self, action) spawn operator - runs two actions in parallel action1 | action2 -> action_result (Inherited from cocos.actions.base_actions.Action)
| done(self) When in the worker role, this method is reliable. (Inherited from cocos.actions.base_actions.IntervalAction)
| step(self, dt) Dont customize this method: it will not be called when in the component role for certain composite actions (like Sequence_IntervalAction). (Inherited from cocos.actions.base_actions.IntervalAction)
| stop(self) When the action must cease to perform this function is called by external code; after this call no other method should be called. (Inherited from cocos.actions.base_actions.Action)
| update(self, t) Gets called on every frame 't' is the time elapsed normalized to [0, 1] If this action takes 5 seconds to execute, `t` will be equal to 0 at 0 seconds. (Inherited from cocos.actions.interval_actions.MoveTo)

## Instance Variables

| target CocosNode object that is the target of the action (Inherited from cocos.actions.base_actions.Action)

## Method Details

### init

init(self, delta, duration=5)
Init method.

Parameters:
  delta : (x,y)
    Delta coordinates
  duration : float
    Duration time in seconds
Overrides:
  MoveTo.init

### start

start(self)

Overrides:
  MoveTo.start

### __reversed__

__reversed__(self)

Overrides:
  base_actions.Action.__reversed__