Smooth piece drop

tetris/components/piece.lua

@@ -143,9 +143,10 @@ function Piece:draw(opacity, brightness, grid, partial_das)
 	love.graphics.setColor(brightness, brightness, brightness, opacity)
 	local offsets = self:getBlockOffsets()
 	local gravity_offset = 0
-	--if grid ~= nil and not self:isDropBlocked(grid) then
-	--	gravity_offset = self.gravity * 16
-	--end
+	if config.gamesettings.smooth_movement == 1 and 
+	   grid ~= nil and not self:isDropBlocked(grid) then
+		gravity_offset = self.gravity * 16
+	end
 	if partial_das == nil then partial_das = 0 end
 	for index, offset in pairs(offsets) do
 		local x = self.position.x + offset.x