Bouncing Balls

ells1231

Hey,

Basically I have 2 problems:

1. I have this ball that bounces through out the level. So I have it to accelerate downward, but the problem is, it just bounces in one spot over and over whereas I want it to bounce around and off of the walls

2. Is there any way to have 2 ball bouncing to different heights I want the small ball to bounce to a lower height than the big ball.

ells1231

...

scitunes

You may not get a response to every post within an hour.

1) Unless the floor is angled it will always bounce straight up and down. So you could angle the floor. Or you could have a rule that says when collides floor or wall accelerate angle - random(0,180).

2) Change the restitution values

Honestly, your descriptions make it difficult for people to answer this because it is hard to figure out what you are trying to accomplish. The more detailed you can be the better.

ells1231

Gottcha but that doesn't work Thanks for the "quick" response though

GRID

Don't know how possible this is... But set the acceleration angle to something like 110 at the beginning of the scene. Then if you can, make a rule to set acceleration to 0 once it collides with the wall for the first time. Providing there is enough 'bounciness' in the balls, they will continue to bounce around your level relatively randomly.

Setting the angle to 110 will make it move at a diagonal. Meaning that once it bounces, it won't just bounce straight back in the direction it came. You'll have to set the acceleration to 0 once it collides with a wall or you'll get a gravity like effect pulling your ball to 110 degree position all the time.

GRID

Wait, I did it.

Make an attribute called gravitee, set it to 230.
Set the balls acceleration speed AND direction to the attribute you made 'gravitee'. Set a rule that when the ball collides with the wall to change attribute 'gravitee' to 0. This will cancel the acceleration.

One final thing I had to do was set the friction of the ball AND the walls to 0. Without doing this, the balls direction will start off random, but the friction caused to enter a straight up / straight down direction that you have the problem of.

----
And the problem of different bounciness is fixed by changing the restitution as previously explained.

scitunes

just put an acceleration in a timer and set the ball's restitution to 1

make sure the acceleration angle is not 270