mtrajk / bouncing-balls Goto Github PK

@MTrajK thx for your code :) Im find some strange thing: if the bottom line is completely filled with balls, then the balls are shaking.

Hello! I find that with this code (both in your demo and in my re-implementation in my program) there happens to be the problem of the "dancing balls". Sometimes balls that come into contact start "dancing" around each other instead of bouncing.

As I have found out that happens because in certain circumstances the collided balls do not get repositoned outside each other correctly. The error is in these two lines:

it should instead be

    this.position = this.position.add((this.position - ball.position).tryNormalize().mult(diff));
    ball.position = ball.position.add((ball.position - this.position).tryNormalize().mult(diff));

So that we reposition the balls not in their speeds directions, which might be directed anywhere and won't always take the balls to positions where they separate. But rather in the direction of a line that passes through both of their centers, in opposite directions, effectively pulling them away from each other.