Implemented challenges!!!!!

tetris/randomizers/bag7noI.lua

@@ -0,0 +1,19 @@
+-- for the pre-packaged/example challenge tetrs
+
+local Randomizer = require 'tetris.randomizers.randomizer'
+
+local Bag7NoIRandomizer = Randomizer:extend()
+
+function Bag7NoIRandomizer:initialize()
+	self.bag = {"J", "L", "O", "S", "T", "Z"}
+end
+
+function Bag7NoIRandomizer:generatePiece()
+	if next(self.bag) == nil then
+		self.bag = {"J", "L", "O", "S", "T", "Z"}
+	end
+	local x = math.random(table.getn(self.bag))
+	return table.remove(self.bag, x)
+end
+
+return Bag7NoIRandomizer