codecombat/app/lib/surface/SingularSprite.coffee

SpriteBuilder = require 'lib/sprites/SpriteBuilder'

floors = ['Dungeon Floor', 'Indoor Floor', 'Grass', 'Grass01', 'Grass02', 'Grass03', 'Grass04', 'Grass05', 'Goal Trigger', 'Obstacle']

module.exports = class SingularSprite extends createjs.Sprite
  childMovieClips: null
  
  constructor: (@spriteSheet, @thangType, @spriteSheetPrefix, @resolutionFactor=SPRITE_RESOLUTION_FACTOR) ->
    super(@spriteSheet)
    
  destroy: -> 
    @removeAllEventListeners()
  
  gotoAndPlay: (actionName) -> @goto(actionName, false)
  gotoAndStop: (actionName) -> @goto(actionName, true)
  _gotoAndPlay: createjs.Sprite.prototype.gotoAndPlay
  _gotoAndStop: createjs.Sprite.prototype.gotoAndStop
  
  goto: (actionName, @paused=true) ->
    @actionNotSupported = false
    
    action = @thangType.getActions()[actionName]
    randomStart = actionName.startsWith('move')
    reg = action.positions?.registration or @thangType.get('positions')?.registration or {x:0, y:0}

    if action.animation
      @framerate = (action.framerate ? 20) * (action.speed ? 1)
      
      func = if @paused then '_gotoAndStop' else '_gotoAndPlay'
      animationName = @spriteSheetPrefix + actionName
      @[func](animationName)
      if @currentFrame is 0 or @usePlaceholders
        @_gotoAndStop(0)
        @notifyActionNeedsRender(action)
        bounds = @thangType.get('raw').animations[action.animation].bounds
        actionScale = (action.scale ? @thangType.get('scale') ? 1)
        @scaleX = actionScale * bounds[2] / (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor)
        @scaleY = actionScale * bounds[3] / (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor)
        @regX = (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor) * ((-reg.x - bounds[0]) / bounds[2])
        @regY = (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor) * ((-reg.y - bounds[1]) / bounds[3])
      else
        scale = @resolutionFactor * (action.scale ? @thangType.get('scale') ? 1)
        @regX = -reg.x * scale
        @regY = -reg.y * scale
        @scaleX = @scaleY = 1 / @resolutionFactor
        @framerate = action.framerate or 20
        if randomStart and frames = @spriteSheet.getAnimation(animationName)?.frames
          @currentAnimationFrame = Math.floor(Math.random() * frames.length)

    if action.container
      animationName = @spriteSheetPrefix + actionName
      @_gotoAndStop(animationName)
      if @currentFrame is 0 or @usePlaceholders
        @_gotoAndStop(0)
        @notifyActionNeedsRender(action)
        bounds = @thangType.get('raw').containers[action.container].b
        actionScale = (action.scale ? @thangType.get('scale') ? 1)
        @scaleX = actionScale * bounds[2] / (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor)
        @scaleY = actionScale * bounds[3] / (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor)
        @regX = (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor) * ((-reg.x - bounds[0]) / bounds[2])
        @regY = (SPRITE_PLACEHOLDER_WIDTH * @resolutionFactor) * ((-reg.y - bounds[1]) / bounds[3])
      else
        scale = @resolutionFactor * (action.scale ? @thangType.get('scale') ? 1)
        @regX = -reg.x * scale
        @regY = -reg.y * scale
        @scaleX = @scaleY = 1 / @resolutionFactor

    if @camera and @thangType.get('name') in floors
      @baseScaleY *= @camera.y2x
    @scaleX *= -1 if action.flipX
    @scaleY *= -1 if action.flipY
    @baseScaleX = @scaleX
    @baseScaleY = @scaleY
    @currentAnimation = actionName
    return
    
  notifyActionNeedsRender: (action) ->
    @lank?.trigger('action-needs-render', @lank, action)