Why some objects stuck for sometime on one of the canvas boundaries although the collision detection condition works ?

Answer 1

FF9900
Thank you, how to solve this problem ?

Answer 2

FF9900
if((y+radius)>canvas.height||(y-radius)<0){dy*=-1;}

What's wrong with this condition ?

Answer 3

FF9900
Take your time.

Answer 4

FF9900
It works great, thank you very much.

Answer 5

FF9900
It flips the direction.

Is the problem related to compare float numbers ?

Answer 6

Round x and y gave slightly improvement to skip quicker from the stuck.

No, dx stands for "direction x", it's always 1 or -1.

Answer 7

https://code.sololearn.com/WWu20ylC7ZeX/?ref=app