Adding lua scripts

Package/Environment/Common/lua/Animate.lua

@@ -0,0 +1,69 @@
+event = require(Event)
+tween = require(Tween)
+
+local Animate = {}
+Animate.__index = Animate
+
+function Animate.new()
+  instance = {
+	component = nil,
+	loop = false,
+        animationIndex,
+        elapsedTime = 0
+        startInfo = {}
+        animations = []
+  }
+  setmetatable(instance, Animate)
+
+  event.register("update", Animate, Animate.update)
+
+  return instance
+end
+
+function Animate.add(time, tweenInfo)
+  self.animations[#self.animations+1] = {duration=time, info=tweenInfo}
+end
+
+function Animate:start(component, loop)
+  self.component = component
+  self.loop = loop
+  self.elapsedTime = 0
+  self.startInfo = component:getProperties()
+
+end
+
+end
+
+function Animate:update(dt)
+  if self.animationIndex > #self.animations and not self.loop then
+    return
+  end  
+
+  self.elapsedTime = self.elapsedTime + dt
+  animation = self.animations[animationIndex]
+ 
+  if animation.duration > self.elapsedTime then
+    self.animationIndex = self.animationIndex + 1
+    self.elapsedTime = 0
+    self.startInfo = component:getProperties()
+
+    if self.animationIndex > #self.animations and self.loop then
+    	self.animationIndex = 0
+    end
+  end
+  curr = {
+	x = tween.calculate(animation.x, startInfo.x, duration, elapsedTime),
+	y = tween.calculate(animation.y, startInfo.y, duration, elapsedTime),
+	width = tween.calculate(animation.width, startInfo.width, duration, elapsedTime),
+	height = tween.calculate(animation.height, startInfo.height, duration, elapsedTime),
+	transparency = tween.calculate(animation.transparency, startInfo.transparency, duration, elapsedTime),
+	rotate = Tween.calculate(animation.rotate, startInfo.rotate, duration, elapsedTime)
+  }
+
+  component.setPosition(componentId, curr.x, curr.y)
+  component.setDimensions(componentId, curr.width, curr.height)
+  component.setTransparency(componentId, curr.transparency)
+  component.setRotate(componentId, curr.rotate)
+end
+
+return Animate