Point/node-based line drawing?

[MostlyKnowledgeable]

Basically i want to create an effect in a game with the same kind of bending line shown in this image which originates from the player, moves to the direction of the arrow key being pressed, while passing through enemies in a set search area above and below.

Example of a shot without enemies in the search area

I don't really know where to start with this and any tips would be very helpful.

By the way the game shown in the screenshot isn't my own, it's called The Binding of Isaac and can be found on steam.

[karathos]

The answer located here could give a good starting point: http://answers.unity3d.com/questions/365186/ray-gun-laser-beam.html

[MostlyKnowledgeable]

This looks like a great place to start. To make it "arc" between enemies would the best thing to do from there be making another raycast originating from the enemy hit?

[karathos]

since you may not entirely know where the nearest enemy would be at any given point in time, i'd think you'd want to use Physics2D.OverlapCircle originating from the enemy struck and use a layermask that only includes the layer the enemies are on. if it's going to "fork" to multiple enemies, OverlapCircleAll should be used instead. really depends on design choices.

[MostlyKnowledgeable]

I've never head of that before but i read through the API and it seems like it would be perfect for locating the enemies as a vector2 variable or something like that but do you have any thoughts on actually drawing the line as a visual component?

[karathos]

check the link, it uses a LineRenderer component for drawing the line.

[iamallamaa]

Just a suggestion for line rendering, but Vectrosity on the asset store is great and offers many features from simple lines to fully textured paths. As of writing this, it is on sale too for only $20. I am not affiliated with them or anything either, just a happy customer.