Random list object movement

**Random list object movement -** 02-13-2010, 04:13 PM

I have a list of x objects, and wish to make each one move .5 meter only. I've created the move method, placed the list variable as the object to move, and chosen getRandomItem, but haven't figured out how to set the boolean for each item in the list so after it's moved, it's changed to false and doesn't move again. This was suggested by my instructor, but without full directions as to how to do it. If there is another, perhaps better way to accomplish this, I'm open to suggestions! Thanks!

zonedabone · 02-13-2010, 05:23 PM

Does the order that the objects move in have to be random, or can it be a set order? If it can be a set order, use the for all in order method, using your object list as the argument. Then have object from list move forward .5 meters.

02-13-2010, 05:43 PM

yes, the order must be random. I'm trying to make a whack-a-mole game, and the moles have to appear randomly. It was suggested I use a boolean array to check for true/false on each mole, so after one moved, it would switch to false and not move again. or wait a moment and move back down. I can't figure out how to do that. Everything I've tried hasn't worked so far.

They also need to react to being bopped, which I think can be handled through a new event.

This hasn't been covered in the textbook. It's a bit more advanced. If you know how to do this, I'd really appreciate your input. Thanks!

02-13-2010, 06:12 PM

Quote:

Originally Posted by claudiaj

yes, the order must be random. I'm trying to make a whack-a-mole game, and the moles have to appear randomly. It was suggested I use a boolean array to check for true/false on each mole, so after one moved, it would switch to false and not move again. or wait a moment and move back down. I can't figure out how to do that. Everything I've tried hasn't worked so far.

They also need to react to being bopped, which I think can be handled through a new event.

This hasn't been covered in the textbook. It's a bit more advanced. If you know how to do this, I'd really appreciate your input. Thanks!

Claudiaj, you didn't mention which text book it is mentioned in that you are using for your class. However the project you are attempting to do is included in the text by Dann, Cooper and Pausch - it's on page 239. They are attempting to teach you how to use a List structure. You might wish to re-read from the text.

Good luck.

02-13-2010, 07:52 PM

My textbook is Alice in Action, by Joel Adams. I've looked for help with manipulating lists, and found very little so far. I'm still hoping someone here can help? Thanks.

02-13-2010, 08:23 PM

You could make an object varible and make it a list and include x objects. then say for all in order expression list with x move 5 meters. I don't think this is random though.

02-13-2010, 10:16 PM

Thanks to all for trying to help me. I think I need professional help! lol! I'm giving up for now.

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	#1 (permalink)
claudiaj Guest Status: Posts: n/a	Random list object movement - 02-13-2010, 04:13 PM I have a list of x objects, and wish to make each one move .5 meter only. I've created the move method, placed the list variable as the object to move, and chosen getRandomItem, but haven't figured out how to set the boolean for each item in the list so after it's moved, it's changed to false and doesn't move again. This was suggested by my instructor, but without full directions as to how to do it. If there is another, perhaps better way to accomplish this, I'm open to suggestions! Thanks!

	#2 (permalink)
zonedabone Senior Member Status: Offline Posts: 577 Join Date: Nov 2008 Location: In the interwebs	02-13-2010, 05:23 PM Does the order that the objects move in have to be random, or can it be a set order? If it can be a set order, use the for all in order method, using your object list as the argument. Then have object from list move forward .5 meters. 'Apple Macintosh' - An anagram of 'Complaints Heap' M.A.C.I.N.T.O.S.H. - Machine Always Crashes, If Not, The Operating System Hangs. You're such a mac person.

	#3 (permalink)
claudiaj Guest Status: Posts: n/a	02-13-2010, 05:43 PM yes, the order must be random. I'm trying to make a whack-a-mole game, and the moles have to appear randomly. It was suggested I use a boolean array to check for true/false on each mole, so after one moved, it would switch to false and not move again. or wait a moment and move back down. I can't figure out how to do that. Everything I've tried hasn't worked so far. They also need to react to being bopped, which I think can be handled through a new event. This hasn't been covered in the textbook. It's a bit more advanced. If you know how to do this, I'd really appreciate your input. Thanks!

	#5 (permalink)
claudiaj Guest Status: Posts: n/a	02-13-2010, 07:52 PM My textbook is Alice in Action, by Joel Adams. I've looked for help with manipulating lists, and found very little so far. I'm still hoping someone here can help? Thanks.

	#6 (permalink)
Veryuhbull Guest Status: Posts: n/a	02-13-2010, 08:23 PM You could make an object varible and make it a list and include x objects. then say for all in order expression list with x move 5 meters. I don't think this is random though.

	#7 (permalink)
claudiaj Guest Status: Posts: n/a	02-13-2010, 10:16 PM Thanks to all for trying to help me. I think I need professional help! lol! I'm giving up for now.