Hi, I want to make “invisible walls” in my sketch so that when you draw a trace with the mouse, it is blocked and the line is drawn around this form of “invisible walls”. I tried with the p5 Play library but it works with sprites and I can’t use line(); to draw a solid line. And i want to draw a s…

(I don’t know the algorithm) I imagine a car that follows the mouse and draws a line. Normally the car can go straight but when there is an obstacle (rectangle) it drives around it towards the mouse

Not exactly sure what you have in mind, but the play library attempts to resolve the collision which results in the ‘teleporting’ from one edge to the other of the blocking rect. You say you want invisible walls yet want to draw solid lines. Should the black sprite follow the shortest route around…

Reminds me of this [image] Connecting outermost dots with a single line? Libraries There is also a Java example of Monotone Chain here: https://en.wikibooks.org/wiki/Algorithm_Implementation/Geometry/Convex_hull/Monotone_chain#Java which has an animation demonstrating t…

If I’m understanding right, you are describing something like the magnet tool in photo editors such as Photoshop – is that correct?

Drawing constraint

p5.js Libraries

Chrisir December 16, 2019, 6:06pm 3

Reminds me of this

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Drawing constraint

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