How declare an multidimensional array

[zuibafParticipant]

I am creating an game Tetris,
there will be an multidimensional array for each piece,
each an multidimensional array is store inside of an unidimensional
For example, I want to store three pieces ‘L’, ‘T’ e ‘I’ this way:
The piece ‘L’
[1][0]
[1][0]
[1][1]
The piece ‘T’
[1][1][1]
[0][1][0]
[0][1][0]
The piece ‘I’
[1][1][1]
[0][1][0]
[1][1][1]
In C#, this is easy:

C#

Int[][,] pieces = new Int[3][,]; pieces[0] = new Int[3,2]{ {1,0}, {1,0}, {1,1} }; pieces[1] = new Int[3,3]{ {1,1,1}, {0,1,0}, {0,1,0} }; pieces[1] = new Int[3,3]{ {1,1,1}, {0,1,0}, {1,1,1} };

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Int[][,] pieces = new Int[3][,]; pieces[0] = new Int[3,2]{ {1,0}, {1,0}, {1,1} }; pieces[1] = new Int[3,3]{ {1,1,1}, {0,1,0}, {0,1,0} }; pieces[1] = new Int[3,3]{ {1,1,1}, {0,1,0}, {1,1,1} };

In monkey2, on the documentation, there is nothing similar, I try this way:

Monkey

Local pieces: Int[][,] = new Int[3][,] pieces[0] = new Int[3,2]((1,0),(1,0),(1,0)) pieces[1] = new Int[3,3]((1,1,1),(0,1,0),(0,1,0)) pieces[1] = new Int[3,3]((1,1,1),(0,1,0),(1,1,1))

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Local pieces: Int[][,] = new Int[3][,] pieces[0] = new Int[3,2]((1,0),(1,0),(1,0)) pieces[1] = new Int[3,3]((1,1,1),(0,1,0),(0,1,0)) pieces[1] = new Int[3,3]((1,1,1),(0,1,0),(1,1,1))

I know what for unidimensional arrays, this is possible:
Local objPiece: Int[] = New Int[6](1, 2, 3, 4, 5, 6)

In the documentation, there is nothing described, perhaps not yet supported. If really, it is not supported will be that in a next version we will have something similar to C#.

In my case, my intention is to avoid the other way described below, as it is not so readable to someone reading the code, that the multidimensional array demonstrates a piece of a tetris game.

Monkey

Local pieces: Int[][,] = New Int[3][,] pieces[0] = New Int[3,2] ' {1,0}, ' {1,0}, ' {1,1} pieces[0][0,0] = 1 pieces[0][0,1] = 0 pieces[0][1,0] = 1 pieces[0][1,1] = 0 pieces[0][2,0] = 1 pieces[0][2,1] = 1

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Local pieces: Int[][,] = New Int[3][,] pieces[0] = New Int[3,2] ' {1,0}, ' {1,0}, ' {1,1} pieces[0][0,0] = 1 pieces[0][0,1] = 0 pieces[0][1,0] = 1 pieces[0][1,1] = 0 pieces[0][2,0] = 1 pieces[0][2,1] = 1

[zuibafParticipant]

I enter the values ​​in an string variable, this way it becomes more visibile what pieces were set in the game.

Monkey

Local strPieces: String = "" 'L' strPieces += "10" strPieces += "10" strPieces += "11" 'L INVERTIDO' strPieces += "01" strPieces += "01" strPieces += "11" '' strPieces += "10" strPieces += "11" strPieces += "01" pieces = New Int[3][,] Local indice_strPiece: Int = 0 Local line: Int = 0 Local column: Int = 0 pieces[0] = New Int[3,2] indice_strPiece = 0 For line = 0 Until 3 For column = 0 Until 2 pieces[0][line,column] = Cast<Int>(strPieces.Slice(indice_strPiece, indice_strPiece)) indice_strPiece += 1 Next Next

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Local strPieces: String = "" 'L' strPieces += "10" strPieces += "10" strPieces += "11"   'L INVERTIDO' strPieces += "01" strPieces += "01" strPieces += "11" '' strPieces += "10" strPieces += "11" strPieces += "01" pieces = New Int[3][,]   Local indice_strPiece: Int = 0 Local line: Int = 0 Local column: Int = 0 pieces[0] = New Int[3,2]   indice_strPiece = 0 For line = 0 Until 3 For column = 0 Until 2 pieces[0][line,column] = Cast<Int>(strPieces.Slice(indice_strPiece, indice_strPiece)) indice_strPiece += 1 Next Next

[WhiteballParticipant]

I think something like this should work.

Monkey

pieces:Int[][] = new Int[][](1,0), new Int[](1,0), new Int[](1,1)

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pieces:Int[][] = new Int[][](1,0),                  new Int[](1,0),                  new Int[](1,1)

[JesseParticipant]

you can create a multidimensional array like this:

Monkey

[crayon-5b79214d38728817504607 inline="true" ] Lpiece:Int[][] = New Int[][](New Int[](1,0),New Int[](1,0),New Int[](1,1))

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[crayon-5b79214d38728817504607 inline="true" ] Lpiece:Int[][] = New Int[][](New Int[](1,0),New Int[](1,0),New Int[](1,1))

[/crayon]

ignore line 1

actually not exactly a two dimensional array but an array of arrays.it should serve your purpose as it’s what you ask for.

[Mark SiblyKeymaster]

Multi-dimensional arrays aren’t too well supported yet, in particular there’s no way to intiailize them with values at creation time yet.

Creating them is easy enough, eg: Local myArray:=New Int[10,20], but you’ll have to get a bit tricky to initialize them, maybe something like:

Monkey

Function CreatePiece:Int[,]( args:Int[] ) Local w:=args[0],h:=args[1] Local piece:=New Int[w,h] For Local y:=0 Until h For Local x:=0 Until w piece[x,y]=args[y*w+x+2] Next Next Return piece End Funciton Main() Local piece:=CreatePiece( New Int[]( 2,3, '2 x 3 'T style piece 1,0, 1,1 1,0 ) ) End

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Function CreatePiece:Int[,]( args:Int[] )    Local w:=args[0],h:=args[1]    Local piece:=New Int[w,h]    For Local y:=0 Until h       For Local x:=0 Until w          piece[x,y]=args[y*w+x+2]       Next    Next    Return piece End   Funciton Main()    Local piece:=CreatePiece( New Int[]( 2,3,   '2 x 3 'T style piece       1,0,       1,1       1,0 ) ) End

(totally untested). Of course, string are also a cool way to do this…

Peronsally, I’d recommend creating a ‘Piece’ class or similar just to make all the arrays easier to deal with (although you seem to be quite comfortable with arrays!) as you’re also gonna wanna ‘Rotate’ them etc. Then you can just have a 1d array of pieces for the game, and give each piece a rotate method, maybe a clone method too for creating new pieces from template pieces etc. Just off the top of my head – I’ve never actually written a tetris game!

[zuibafParticipant]

I am creating the game, it is working, but I still have not finished
This is my game first.
All that remains is display of the next piece, punctuation, and phase.
The hard part has already been made.
The comment is an portuguese.
Sorry for English, but my native language is Portuguese from Brazil.

Attachments:

1. Tetris.monkey2

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