demos/shine_on/scripts/DarkLine.lua

   1 --default values
   2 DarkLine = Object:new()
   3 DarkLine.type = "DarkLine"
   4
   5 DarkLine.image, DarkLine.w, DarkLine.h = get_image("images/darkline.png")
   6 DarkLine.fallspeed = 0
DarkLine.y_accel = -0.03
   7
   8 function DarkLine:new(o)
   9   o = o or {}
  10   setmetatable(o, self)
  11   self.__index = self
  12   o.anim_func = create_animation_iterator(8, 200, 1)
  13   return o
  14 end
  15
  16
  17 function DarkLine:update(delta)
  18   Object.update(self, delta)
  19
  20   self.y_accel = self.y_accel - 0.002
  21
  22   self.fallspeed = self.fallspeed + self.y_accel
  23
  24   --gravity
  25   self.y = self.y + self.fallspeed
  26
  27   --bounds checking (ensure it's inside the game screen)
  28   if self.x > s_width or self.y > s_height or self.x + self.w < 0 or self.y + self.h < 0 then
  29     self.collect = true
  30   end
  31
  32 end
  33
  34
  35 function DarkLine:collide(ids, object)
  36   self.collect = true
  37 end
  38
  39
  40 function DarkLine:draw()
  41   local frame, playing = self.anim_func()
  42   if playing == false then frame = 7 end
  43   blit_frame(self.image, self.x-self.x_offset, self.y-self.y_offset, 8, frame,0,1,1)
  44 end