Linked List Problem
BlitzMax Forums/BlitzMax Programming/Linked List Problem
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| Here's my dilemna. I have a type and two of the fields are TLists. I need them to talk to each other so when I change a value in one list, it changes in the other. I need to keep them non-global and in the Type. Some code example:
Type Blah
Field List1:TList = New TList
Field List2:TList = New TList
End Type
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| Could you have a method inside Type Blah that handles the various list operations? It's good to do that, anyway. I forget what the term is, but one thing done with OOP is to have methods to change any variables in a Type. That way you can make changes to how data is stored fairly easily, looking nowhere except for in the Type definition. |
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| Hmm...testing. I think I'm a victim of my own complexity, if that makes sense. This sucks...If I have global lists I can change object data in one list and it affects the other. But I can't figure out how to do that with the above configuration. :( |
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| Ugh...I found the bug. A line I put in for testing and I even commented that I needed to take it out... |
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| can you post your solution? |
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Sure. Remember that TBlahs are stored in List1 and List2.
Type TSomething
Field List1:TList = New TList
Field List2:TList = New TList
End Type
Local this:TBlah
For this = Eachin List2
If this.value = 100
KillThisBlahInList1( this )
self.List2.Remove( this )
Endif
Next
...
Method KillThisBlahInList1( that:TBlah )
Local this:TBlah
For this = Eachin List1
If this = that
self.List2.Remove( this )
Exit (or Return False)
Endif
Next
End Method
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Can't you simply do this ?
Method KillThisBlahInList1( that:TBlah )
self.List1.Remove(that)
End Method
:-) |
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| yes. especially the above would be a total overkill. remove will loop through the list anyway so looping to find the object and then call remove on the list instead of a tlink means twice looping for the same thing |
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| Do the 2 lists contain exactly the same objects? |
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