伤害数值弹出时的运动轨迹如何修改？ - Project1

module RPG
  class Sprite < ::Sprite
def update
   super
   if @_whiten_duration > 0
      @_whiten_duration -= 1
      self.color.alpha = 128 - (16 - @_whiten_duration) * 10
   end
   if @_appear_duration > 0
      @_appear_duration -= 1
      self.opacity = (16 - @_appear_duration) * 16
   end
   if @_escape_duration > 0
      @_escape_duration -= 1
      self.opacity = 256 - (32 - @_escape_duration) * 10
   end
   if @_collapse_duration > 0
      @_collapse_duration -= 1
      self.opacity = 256 - (48 - @_collapse_duration) * 6
   end
   if @_damage_duration > 0
      @_damage_duration -= 1
      case @_damage_duration
      when 38..39
      @_damage_sprite.y -= 4
      when 36..37
      @_damage_sprite.y -= 2
      when 34..35
      @_damage_sprite.y += 2
      when 28..33
      @_damage_sprite.y += 4
      end
      @_damage_sprite.opacity = 256 - (12 - @_damage_duration) * 32
      if @_damage_duration == 0
      dispose_damage
      end
   end
   if @_animation != nil and (Graphics.frame_count % 2 == 0)
      @_animation_duration -= 1
      update_animation
   end
   if @_loop_animation != nil and (Graphics.frame_count % 2 == 0)
      update_loop_animation
      @_loop_animation_index += 1
      @_loop_animation_index %= @_loop_animation.frame_max
   end
   if @_blink
      @_blink_count = (@_blink_count + 1) % 32
      if @_blink_count < 16
      alpha = (16 - @_blink_count) * 6
      else
      alpha = (@_blink_count - 16) * 6
      end
      self.color.set(255, 255, 255, alpha)
   end
   @@_animations.clear
end
  end
end