Move a row in a 2d array to the left

Hey everyone,

I need the most compact way to move an array row to the left ... like this ...

[ ][ ][N][N]

[ ][N][N][ ]

It also needs to switch from one side to another like this ...

[N][N][ ][ ]

[N][ ][ ][N]

Thanks for all the suggestions !

I need the most compact way to move an array row to the left ... like this ...

[ ][ ][N][N]

[ ][N][N][ ]

You could push a new element X element on the front of the array. If that's not appropriate, you could move all the XY values to a temporary array, and then cycle through the temporary array to reassign each X,Y to the original arrays X+1,Y.

It also needs to switch from one side to another like this ...

[N][N][ ][ ]

[N][ ][ ][N]

I'm not sure what is being switched in this example.

It also needs to switch from one side to another like this ...

[N][N][ ][ ]

[N][ ][ ][N]

I'm not sure what is being switched in this example.

(A)(B)( )( )

(B)( )( )(A)

(A)(B)( )( )

(B)( )( )(A)

<img src="http://i.imgur.com/IX77ueZ.png" border="0" />

zatyka , You forgot that it's a 2d array and I only want to move 1 row :)

Whiteclaws

Sorry about that. Set ChangeY to the Y element you need to shift.

To shift the Y element left:

<img src="http://i.imgur.com/pXh66Z3.png" border="0" />

To shift the Y element right:

<img src="http://i.imgur.com/F5F23RC.png" border="0" />

Thanks a lot , man !

zatyka , what about up and down ?

I'm sorry if i'm asking for too much but I'm feeling i've been in this issue issue for too long ...

Same principle as shifting a value along the X Axis:

ChangeX = Column to be shifted

Shift Up:

<img src="http://i.imgur.com/RfRser9.png" border="0" />

Shift Down:

<img src="http://i.imgur.com/YrbkHSX.png" border="0" />

Here's a capx with all directions covered. I'm using index manipulation and value permutation, not quite the same thing as zatyka but the end result is pratically the same !

Thanks a lot guys !