Recreating Alchemy Stars Move System

Recreating the movement mechanic from game called Alchemy Stars. Alchemy Stars Download LInk : https://play.google.com/store/apps/details?id=com.tencent.baiyeint&hl=en&gl=US How To : Left click and hold the black circle, Select one of surrounding color tile by hovering mouse to the tile,Hover the mouse to another connected tile of same color you want to move.You can hover to previous selected tile for a second and half to remove the path after the selected tile.