An all in one Godot 4 node to make all kinds of highly customisable laserbeams with no coding required. Standalone addon of the laserbeam feature in my bullethell plugin : https://bottled-up-studio.itch.io/godot-bullethell-plugin
This plugin has issues and is no longer maintained. Only the laserbeam node in BulletUpHell BLAST is maintained and fully working (with some exclusive features).
Just put it in the addon folder and use the LaserBeam scene.
Features include (but are not limited to):
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laser bouncing off walls
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spawning scenes on impact (could be used for explosions)
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full control on laser's collision and propagation behavior
Full documentation available here