I quite new to web development. I created a simple game which suppose to raise awareness to the RP syndrome (which I suffer from). The simple goal is to find Waldo but the twist is that there is nothing but him on the screen.

I want to add a “flashlight courser effect” meaning that the only visible part of the screen should be the one around the courser (for some fixed or maybe chosen radius). But, I don’t want the rest of the screen (the non-visible) to be black but white / blank (as this is in a way the way that I see the world). The other elements (buttons, score and counter) should stay visible always.

Can someone advice me on how can it be done? Ideally there should be two switches (on the corner) one controlling the mode (full visibility vs limited field of vision) and the second one controlling the type of “darkness” (black vs white).

Here is the link to the repo with the current code: https://github.com/menisadi/RPWaldo

Thanks in advance

Update: Thanks everyone!!! I used the SVG idea and added the flashlight effect" (even added a switch to toggle the “flashlight mode” on and off). Working great. Thanks!

  • glimse@lemmy.world
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    1 year ago

    (i haven’t done webdev in YEARS so I’m pulling this out of my ass) what about a bigass png with transparency that follows your cursor?

    • Spzi@lemm.ee
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      1 year ago

      Yes, or if you want to learn more about this approach, search for masks, layers.

      • glimse@lemmy.world
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        1 year ago

        Is that still the way? I haven’t touched web programming since like 2016 and I figured a ton has changed. Can’t even remember what JavaScript library I used for animation lol

    • menisadi@programming.devOP
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      1 year ago

      Interesting. But won’t it work only for the background? Waldo isn’t part of the background, he is a separate object as he changes position after each time you find him and click on it (I forgot to mention this important point).