View difference between Paste ID: ASa15siv and Cz94PnQL

 function iff (x,y)
 if a[x][y]==1 then
 turtle.select(1)
-elseif a[x][y]==2 then
+elseif a[x][y][z]==2 then
 turtle.select(2)
-elseif a[x][y]==3 then
+elseif a[x][y][z]==3 then
 turtle.select(3)
-elseif a[x][y]==4 then
+elseif a[x][y][z]==4 then
 turtle.select(4)
-elseif a[x][y]==5 then
+elseif a[x][y][z]==5 then
 turtle.select(5)
-elseif a[x][y]==6 then
+elseif a[x][y][z]==6 then
 turtle.select(6)
 elseif a[x][y][z]==0 then
 turtle.select(16)
 end
 end
 
 a = {
 	{
 		{1, 2, 2, 1},
   		{2, 0, 0, 2},
 		{2, 0, 0, 2},
 		{1, 2, 2, 1}
 	},
 	{
 		{2, 0, 0, 2},
   		{0, 0, 0, 0},
 		{0, 0, 0, 0},
 		{2, 0, 0, 2}
 	},
 	{
 		{2, 0, 0, 2},
   		{0, 0, 0, 0},
 		{0, 0, 0, 0},
 		{2, 0, 0, 2}
 	},
 	{
 		{1, 2, 2, 1},
   		{2, 0, 0, 2},
 		{2, 0, 0, 2},
 		{1, 2, 2, 1}
 	},
 }
 
 
 
 
 
 
 turtle.up()
 for x=1,#a do
 	for y=1,#a[x] do
 		for z = 1,#a[x][y] do
 			iff(x,y)
 			turtle.placeDown()
 			turtle.forward()
 		end
 		turtle.turnRight()
 		turtle.forward()
 		turtle.turnRight()
 		for y = 1,11 do
 			turtle.forward()
 		end
 		turtle.turnRight()
 		turtle.turnRight()
 	end
 end