movement questions

[ST]

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

[LB]

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.

[King_Cool]

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

[LB]

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

What are you talking about? o_o

[King_Cool]

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>

[ST]

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