How can I make 2D Raycast have a Vector2 direction that would always point at some Object even as it moves

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1

How can I make 2D raycast have a Vector2 direction that would always point at some Object even as both objects move differently, for example:

Have a guard that walks on pre-set route and and also have Raycast pointing at player no matter where he moves.

Thanks in forward.

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Use a LineCast : A linecast is an imaginary line between two points in world space