break-the-peices.js

const nodes = [];
const adjMatrix = {};

function breakPieces (shape){
	shape = shape.split('\n');
  
	let height = shape.length;
  let width = shape[0].length;

  // create a list with the co-ordinates of each '+'
  for (let i=0; i < height; i++) {
    for (let j=0; j < width; j++) {
      if (shape[i][j] === '+') {
        nodes.push({ x: i, y: j });
      }
    }
  }

  // create a blank adjancy matrix (all elements set to 0)
  for (let i=0; i < height; i++) {
    let row = {};
    for (let j=0; j < width; j++) {
      row[j] = 0;
    }
    adjMatrix[i] = row;
  }
  
  console.log(adjMatrix);
  
  for (let i=0; i < nodes.length; i++) {  
    const { x, y } = nodes[i];
    // check for nodes to the north
    
  }
}