movement questions

I have two movement issues that I'm having trouble with.

1) When I launch the ball object vertically with pinball movement, I want the ball to be destroyed on the downside of the movement when the ball's Y position = 140. The ball's Y position will pass Y=140 twice, once going up and then when coming down. I tried to set a flag on the ball so that I can test when the ball is moving up or down but I haven't gotten it to work consistently.

2) Is there an example that I can see how to handle the following situation. When the bottom object is under the top object and a ball is launched from the bottom object, I want the ball to pass over the top object and only detect a collision with the top object and ball when the ball is coming back down.


I hope these questions aren't too confusing. The attached file should be easier to understand what I'm trying to convey.

Steve

Can't you just add a conditions to test if the ball is facing down? Also, you shouldn't use position = value for movements, sometimes positions can be skipped over if the speed is fast enough.

1)
It appears that there is no way for MMF2 to determine wich direction an Object with Pinball Movement moves, wich makes this situation hard.
You can however create a simple method wich determines this for yourself.
By storing the Balls oldY_ possition in an Alterable Value, you can compair each Balls OldY_ to its current Y possition and thus determine if its moving up or down.

2)
If you do the method above ( 1 ), you will be able to determine if the Ball is moving up or comming down.
The you could simply do:

If Ball is comming down
+ Collision between Ball and Object
- do your Action

Quote:

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Originally Posted by King_Cool

It appears that there is no way for MMF2 to determine wich direction an Object with Pinball Movement moves

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What are you talking about? o_o

Oh man, major mistake by me. I sould be ashamed, really.
Well thanks for correcting me LB.

...
ST, pleace disregard my last post, LB is correct.

1)

If Ball is facing down
+ Ball Y possition > 140
- Ball destroy

2)

If Ball is facing down
+ Ball collides with Object
- <your_action>

Thanks for the responses. I'll try it out tonight. Still on the learning curve.