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[Game] Leaving a trail on the screen

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Dec 15.2010

I’d like to make a game-like interactive animation with javascript. A car of some sort that will be able to move in all directions is something i have no troubles with. But on top of that i would like to add a trail that this “car” of mine would leave behind it.

Keeping in mind that the car is able to move in all direction (by which i mean any angle, not just up-down-left-right), how would i make the parts of the screen that the car “ran over” to have a different color or something, and preferably leaving the option of calculating the surface area of the trail?

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JavaScript

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@jackacohenJan 03.2011 — If I were doing this I'd code it into the script that moved the "car", using the same variables.

I've written something like this using jsDraw.js, but an answer I gave in terms of that code would not be meaningful if you're not using that package.

So, how are you animating the car?
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