Question How to do 2d Enemy follow with collisions and raycasts?

I want to make the enemies in my 2d top down shooter follow the player until he is within a certain range but all the tutorials on yt dont cover it with collisions and line of sight with raycasts.

how do i make an enemy script where it will follow my player and still collide but stop following player if the player isnt in the enemy's line of sight?

 

Have you seen this one?

It's worth using 3D navmeshes in 'pseudo 2d' if you're not that far into it.

 

sorry im not rly looking for this stuff, im looking for an enemy ai script where it will follow me until a certain radius but still collide with obstacles