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Question by bruninDx · Feb 08, 2016 at 10:33 PM · 2dphysics

2D Top Down FlashLight RayCast Help.

Hi guys, im new here and iam trying to make a flashlight cone in a top down 2D game, but I want it to stop in the walls. I read that RayCast can help me but i did not find any tutorials, how can i use RayCast in the flashlight ? Thank You.

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Answer by Zeoli · Feb 24, 2016 at 04:36 PM

Hi @bruninDx,

Is there a reason you don't want to use an actual spotlight? as that would solve all your issues. See image. alt text

If you want to use a fake light then I'd give this tutorial a spin, it is very easy to follow and you get to learn a fair amount about RayCasting. https://www.youtube.com/watch?v=rQG9aUWarwE


lightexample.png (46.4 kB)
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avatar image bruninDx · Feb 28, 2016 at 03:15 AM 0
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Thank You for the tutorial, the problem that i have with the actual spotlight is because the light dont stop in the 2Dcolliders, i dont know if i'm doing something wrong or it dont work with 2D stuff .

Thank You.

avatar image Zeoli bruninDx · Feb 29, 2016 at 11:48 PM 0
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@bruninDx Unity treats every game as 3D, even the 2D ones. So lighting would be like shining a light at the side of a bit of paper. You could make your objects 3D and use an orthographic camera ins$$anonymous$$d, this will render lighting properly but give you the 2D effect.

avatar image bruninDx Zeoli · Mar 07, 2016 at 04:37 PM 0
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Hello, thank you for the tutorial !!

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