# Copyright 2012 United States Government, as represented by the Secretary of Defense, Under
# Secretary of Defense (Personnel & Readiness).
# 
# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
# in compliance with the License. You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software distributed under the License
# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
# or implied. See the License for the specific language governing permissions and limitations under
# the License.

## The component representation of a sway behavior (on click)
## 
## @name sway-on-click.vwf
## @namespace

--- 
extends:
  http://vwf.example.com/node3.vwf
properties:
  
  ## Whether the component is swaying
  ## 
  ## @name sway-on-click.vwf#sway-swaying
  ## @property

  sway-swaying:
    set: |
      if ( value && ! this["sway-start"] ) {
        this["sway-start"] = this.time;
        this.sway();
      } else if ( ! value && this["sway-start"] ) {
        this["sway-start"] = null;
      }
    get: |
      return !! this["sway-start"];

  ## Sway rate
  ## 
  ## @name sway-on-click.vwf#sway-rate
  ## @property

  sway-rate: 1

  ## Sway axis
  ## 
  ## @name sway-on-click.vwf#sway-axis
  ## @property

  sway-axis: [ 0, 1, 0 ]

  ## Sway start
  ## 
  ## @name sway-on-click.vwf#sway-start
  ## @property

  sway-start: null

methods:
  
  ## Sway function. Updates component rotations and calls future sway
  ## 
  ## @name sway-on-click.vwf#sway
  ## @function
  ##
  ## @returns undefined

  sway:
  
scripts:
- |
    this.pointerClick = function() {
      // this["sway-swaying"] = ! this["sway-swaying"];
    }
    this.sway = function() {
      var start = this["sway-start"];
      if ( start ) {
        this.rotateBy( [ this["sway-axis"][0], this["sway-axis"][1], this["sway-axis"][2],  Math.cos( this.time - start ) * Math.PI / 2 ], 0 );
        this.future( 0.05 ).sway();
      }      
    } //@ sourceURL=sway-on-click.vwf