[Gambas-user] Arrays of Structs

[Rolf-Werner Eilert]

Would this be possible?

Static Private WorldMap[100, 100] As New MapObject


or in a similar way... Just ask because I tend to use New in the first 
declaration line if possible.

Regards
Rolf

Am 30.11.2016 07:27, schrieb nando_f at ...951...:
> I use structs to write binary to a file in struct order.
> Nice and easy.
> Not so easy with a class.
>
> Your example is possible.  I have done similar.
>
> The STRUCT only defines the structure...it doesn't create the memory allocation.
> Static Private WorldMap[100, 100] As MapObject  just defines arrays to point to objects.
> You need to run code to actually create new objects at each array element.
> hint:
> Loop  x
>   Loop  y
>     [x][y] = new MapObject  'the new actually creates a memory allocation for it.
>
> -Fernando
>
> --
> Open WebMail Project (http://openwebmail.org)
>
>
> ---------- Original Message -----------
> From: Tony Morehen <tmorehen at ...3602...>
> To: gambas-user at lists.sourceforge.net
> Sent: Tue, 29 Nov 2016 15:29:03 -0500
> Subject: Re: [Gambas-user] Arrays of Structs
>
>> I may just be responding to a typo but your struct is named MapObjec
>> while the code using it refers to MapObject.
>>
>> On 28/11/16 10:40 PM, Cam Era wrote:
>>> I expect I'm trying to do something that's not possible with Gambas, but
>>> I'll ask this anyway.
>>>
>>> I'm trying to create an n x n array of a STRUCT which itself contains an
>>> array of type STRUCT.
>>>
>>> I have this declaration:
>>>
>>>       Public Struct MapObjec
>>>         xPos As Integer
>>>         yPos As Integer
>>>         ObjectType As Integer
>>>         isVisible As Boolean
>>>         ObjectPicture As Picture
>>>       End Struct
>>>
>>>       Public Struct MapRoom
>>>         MapObjects[50] As MapObject
>>>       End Struct
>>>
>>>       Static Private WorldMap[100, 100] As MapObject
>>>
>>>
>>> and this code:
>>>
>>>       WorldMap[5, 10].MapObjects.yPos = 100
>>>
>>>
>>> which generates a "NULL object" error.
>>>
>>> Any pointers as to whether this is possible and if so, how?
>>>
>>>
>>> Cheers
>>>
>>> -- Cam
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