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Index › Programming Questions & Help › Syntax Questions › newbie question - multidimensional arrays
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newbie question - multidimensional arrays (Read 1849 times)
alias
newbie question - multidimensional arrays
Jun 2nd, 2005, 7:13pm  
Hi guys,

Like a few people here, I'm coming from an actionscript background, so I'm wondering if this is possible in processing. I want to create a multidimensional array, so I can access a grid-like structure like so:

grid[x][y] = someVal;

In actionscript you'd normally do:

xSquares = ySquares = 10;
var grid:Array = new Array();
for (var i=0;i<xSquares;i++){
  grid[i] = new Array;
  for (var j=0;j<ySquares;j++){
     grid[i][j] = 0;
  }
}

Then access each element as grid[x][y]...

Does this approach work in processing? I can't seem to create an array inside another one. Does the language support this? Is there a correct syntax or workaround to do so?

Thanks in advance,
Alias
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seltar
Re: newbie question - multidimensional arrays
Reply #1 - Jun 2nd, 2005, 7:21pm  
yes, it is very possible:

Code:

int [][] coords;
void setup()
{
 size(200,200);
 coords = new int[width][height];
 for(int x = 0; x < width; x++)
   for(int y = 0; y < height; y++)
     coords[x][y] = (int)random(0,255);
 noLoop();
}
void draw()
{
 for(int x = 0; x < width; x++){
   for(int y = 0; y < height; y++){
     stroke(coords[x][y]);
     point(x,y);
   }
 }
}


-seltar
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