#===============================================================================
# New animation
#===============================================================================
class TrainerFadeAnimation < PokeBattle_Animation
  def createProcesses
    # NOTE: The movement speeds of trainers/bar/balls are all different.
    # Move trainer sprite(s) off-screen
    trainer1 = addSprite(@sprites["trainer"])
    trainer1.setOrigin(0,PictureOrigin::Bottom)
    trainer1.moveDelta(0,16,Graphics.width/2,0)
    if @sprites["trainer2"]
      trainer2 = addSprite(@sprites["trainer2"])
      trainer2.setOrigin(0,PictureOrigin::Bottom)
      trainer2.moveDelta(0,16,Graphics.width/2,0)
    end
    # Move and fade party bar/balls
    delay = 3
    partyBar = addSprite(@sprites["partybar1"])
    partyBar.moveDelta(delay,16,Graphics.width/4,0)
    partyBar.moveOpacity(delay,12,0)
    for i in 0...6
      next if !@sprites["partyball1_#{i}"]
      partyBall = addSprite(@sprites["partyball1_#{i}"])
      partyBall.moveDelta(delay+2*i,16,Graphics.width,0)
      partyBall.moveOpacity(delay,12,0)
    end
  end
end



#===============================================================================
# Old animation
#===============================================================================
class TrainerFadeAnimation
  def initialize(sprites)
    @frame    = 0
    @sprites  = sprites
    @animdone = false
  end

  def animdone?; return @animdone; end

  def update
    return if @animdone
    @frame += 1
    @sprites["trainer"].x += 8
    @sprites["trainer2"].x += 8 if @sprites["trainer2"]
    @sprites["partybar1"].x       += 8
    @sprites["partybar1"].opacity -= 12
    for i in 0...6
      @sprites["partyball1_#{i}"].opacity -= 12
      @sprites["partyball1_#{i}"].x       += 8 if @frame>=i*4
    end
    if @sprites["trainer"].x-@sprites["trainer"].ox>=Graphics.width &&
       (!@sprites["trainer2"] || @sprites["trainer2"].x-@sprites["trainer2"].ox>=Graphics.width)
      @animdone = true
    end
  end
end