demos/shine_on/scripts/Sparkle.lua

   1 --default values
   2 Sparkle = Object:new()
   3 Sparkle.type = "Sparkle"
   4
   5 Sparkle.image, Sparkle.w, Sparkle.h = get_image("images/sparkle.png")
   6 Sparkle.fallspeed = 0
Sparkle.y_accel = 0.035
   7 Sparkle.rect = Rect:new({x=8, y=8, w=16, h=16})
   8
   9 function Sparkle:new(o)
  10   o = o or {}
  11   setmetatable(o, self)
  12   self.__index = self
  13   return o
  14 end
  15
  16
  17 function Sparkle:update(delta)
  18   Object.update(self, delta)
  19
  20   self.fallspeed = self.fallspeed + self.y_accel
  21
  22   --gravity
  23   self.y = self.y + self.fallspeed
  24
  25   --bounds checking (ensure it's inside the game screen)
  26   if self.x > s_width or self.y > s_height or self.x + self.w < 0 or self.y + self.h < 0 then
  27     self.collect = true
  28   end
  29
  30 end
  31
  32
  33 function Sparkle:collide(ids, object)
  34   if object.type == "Darkle" then
  35     phazon_list:push_back(Phazon:new({x=self.x,y=self.y}))
  36   end
  37   if object.type == "Rectangle" then
  38     dark_height = dark_height - 1.5
  39     if dark_height < 0 then dark_height = 0 end
  40   end
  41   self.collect = true
  42 end
  43
  44
  45 function Sparkle:draw()
  46   Object.draw(self)
  47 end