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lembi2001
Registered
01/04/2005
Points
608
      
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22nd October, 2010 at 21:52:03 -
I am trying to make a game for the Xmas compo but i am having a problem with repositioning an object.
The main level is rotated and an object needs to keep it's relative position. i have got the rotation down but i cannot work out the placement of the object.
I have a feeling that its a cos sin formula i need but i cannot get it to work
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OMC
What a goofball
Registered
21/05/2007
Points
3516
     
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22nd October, 2010 at 22:22:51 -
I have a feeling we're going to need a bit more detail than that.
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lembi2001
Registered
01/04/2005
Points
608
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22nd October, 2010 at 22:30:13 -
Thought as much 
Don't want to reveal too much info on the game yet though so....
See if this makes sense:
There is a ball in the top left hand corner of a box. The player presses right and the box rotates right. At the same time the ball would normally stay in it's current position i need the ball to follow the box around on it's rotation path. so the top left hand corner would become the top right hand corner.
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OMC
What a goofball
Registered
21/05/2007
Points
3516
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22nd October, 2010 at 23:14:53 -
Is the box an active object? Are there any other objects? Are you rotating around the hot spot?
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lembi2001
Registered
01/04/2005
Points
608
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22nd October, 2010 at 23:20:30 -
The box is one big active object. Its action point and hot spot are in the middle. The box is rotated around these points until it reaches a 90 degrees difference. The only other object is the ball. I could upload an mfa but again i don't want to give away too much.
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Sketchy
Cornwall UK
Registered
06/11/2004
Points
1970
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22nd October, 2010 at 23:38:16 -
I know you don't want to give much away, but I think you're going to have to tell us a bit more than you have so far...
Do you mean something like this?
http://cid-b1e7ee094271bbda.office.live.com/self.aspx/Public/LevelRotate.mfa
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lembi2001
Registered
01/04/2005
Points
608
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22nd October, 2010 at 23:46:19 -
similar yes sketchy however i cannot work out what you have done. I have conceded and uploaded the basic mfa.
http://mfa.aquadasoft.com/view/1287787445-testgame
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Sketchy
Cornwall UK
Registered
06/11/2004
Points
1970
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23rd October, 2010 at 00:07:54 -
http://cid-b1e7ee094271bbda.office.live.com/self.aspx/Public/LembiEdit.mfa
It does basically what you want, but there's a bug and I'm not sure how to fix it 
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lembi2001
Registered
01/04/2005
Points
608
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23rd October, 2010 at 00:12:40 -
perfect sketchy. i'll try and fix the bug
I think i have fixed the bug. it was related to the ball getting stuck in the walls no?
 Edited by lembi2001
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Sketchy
Cornwall UK
Registered
06/11/2004
Points
1970
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23rd October, 2010 at 00:20:50 -
I think the problem is being caused by the rotation being out by 1 or 2 pixels (possibly due to the limited precision), and I may have a solution...
+ Rotation("Level") = 0
+ Only one action when event loops
-> Ball: Set X position to X("Ball")/CellWidth*CellWidth
-> Ball: Set Y position to Y("Ball")/CellHeight*CellHeight
That should snap the ball perfectly to a grid cell after the rotation.
Just make sure the level object is perfectly aligned to the grid itself.
I'll try and fix the example to show you...
EDIT:
Just saw your post - Yes, that's the bug I was talking about. If you've fixed it, I won't bother trying any more (I was ready to give up for tonight anyway).
Edited by Sketchy
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lembi2001
Registered
01/04/2005
Points
608
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23rd October, 2010 at 10:22:02 -
looks like i didn't fix it after all!! it was just a fluke.
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Sketchy
Cornwall UK
Registered
06/11/2004
Points
1970
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23rd October, 2010 at 13:53:43 -
I think you're going to need to use detectors, and just push the ball out of the walls
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lembi2001
Registered
01/04/2005
Points
608
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23rd October, 2010 at 13:57:27 -
okay, cheers sketchy. you have been a huge help!
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