Help using the Game Logic Mouse?

Hi, I’m a Games Developer and I’m fairly new to coding & Blender.

I was wondering if anybody could help me; I’m trying to create a game. I have developed the environment and my character with a simple walk animation.

What I’m having troubles with is trying to make the character move to the mouse-click instead & use the WASD to rotate the camera around the character.

Thank you,
Kunal