Moving up and down an object

SaeedP · October 23, 2023, 7:48pm

Hello,

I want a balloon to move up and after a specific distance come down.
It has physics engine behavior.
It goes up but after the distance has passed I can’t stop it and move it down.
You can see the code below:

What should I do to bring it down?

Thanks,

Reborn · October 23, 2023, 9:13pm

Higher the ballon, smaller the Y.

Basically: Y -100 is greater than Y +100.

So, you should try the < symbol.

SaeedP · October 23, 2023, 10:31pm

I changed it to:

But the problem still exists!

Reborn · October 23, 2023, 10:44pm

Can you check if there is a “Stop the object” specifically for the physics behavior? Also, try changing the action just to make sure the conditiom is returning true.

SaeedP · October 24, 2023, 1:15am

No, there is just one stop the object.

MrMen · October 24, 2023, 3:10am

The apply force is a physics action. The stop force is a non-physics action. The easiest way to tell if actions are for the same behaviour is to look at their symbols; in this case, they are different.

You can stop the balloon bomb with physics 2 ways:

Put a hidden static physics object above the balloon bomb where it should stop.
Use the balloon bomb’s action Linear velocity Y and set the speed to 0:

You should also have a condition on action that sets the physics force. Constantly applying a force and then changing the velocity may produce unwanted results.

SaeedP · October 24, 2023, 10:39am

It Works. But then I can’t move the balloon down.

I appreciate your help, but I think using a boolean variable is a better and simpler method.
At first, I did not think that this program would do this. But like it can.