How to draw a path from players's position to the target position where i touch?

i want to draw a path that player will follow, From player's position to the target position(where i would touch on screen), i want to do something line in this game, https://play.google.com/store/apps/details?id=com.rubygames.assassin. you can see in first screenshot.

Unfortunately i have spent 2 days but could not achieve this. Please help me. Thanks in advance.