rojrun / js_ooppractice3

Horse Race

featureset 1

• alter the code of the track.js object to make a horse race
• add more horses given the examples already present
• make the horses race and declare a winner when they get to the right!
  • example
• handleHorseUpdate is
  • passed into each horse
  • called by each horse update (every time it moves itself)
  • is given arguments of
    • horse: (Horse object) the horse that finished its update
    • type: (string) the type of update ('moved or reset')
• handleUpdates
  • called on each update of the game

details

• libraries/horse.js
  • code is basically pre-generated
  • constructor
    • takes in the following properties
      • name: name of the horse
      • number: number to put on the horse
      • horseClass: additional class to put on the horse (For styling)
      • imageFile: which file to use for the horse background
      • updateTime: how many ms to wait to update background image
      • updateCallback: function in parent to call after each horse update
      • index: which horse this is in the main game (for tracking)
  • methods available:
    • run:
      • purpose: make the horse start its running animation
      • params: none
      • return: none
    • stop:
      • purpose: make the horse stop its running animation
      • params: none
      • return: none
    • getPosition:
      • purpose: get the current left/top of the horse in its parent
      • params: none
      • return: object { left, top} : pixels of current dom position
    • getProperties:
      • purpose: get all properties of the horse, like name and such
      • params: none
      • return: object with all of the properties of the horse
    • isRunning:
      • purpose: get current state of horse running
      • params: none
      • return: boolean - true if running, false if not running
    • resetPosition:
      • purpose: reset the horse's left position back to 0
      • params: none
      • return: none
    • move the horse a distance
      • purpose: move the horse a distance
      • params: (int) the distance to move the horse on the page
      • return: none