break-block.js

/**
 * [BreakBlock description]
 */
function BreakBlock(row, col){
  this.data = [];
  this.position = [ 0, 0 ];
  this.direction = BreakBlock.DIRECTION.NE;
};

BreakBlock.AXIS = {
  X: 0x00,
  Y: 0x01
};
/**
 * [CONST description]
 * @type {Object}
 */
BreakBlock.CONST = {
  EMPTY : 0x00,
  BLOCK : 0x01,
  BALL  : 0x02,
  PANEL : 0x03
};

BreakBlock.DIRECTION = {
  N: 0x01,
  S: 0x02,
  W: 0x03,
  E: 0x04,
  
  NW: 0x05,
  NE: 0x06,
  SW: 0x07,
  SE: 0x08
};
/**
 * [function 初始化空白数据]
 * @param  {[type]} row [description]
 * @param  {[type]} col [description]
 * @return {[type]}     [description]
 */
BreakBlock.prototype.init = function(row, col) {
  this.data = [];
  while(row--){
    var arr = [], i = col;
    while(i--) arr.push(BreakBlock.CONST.EMPTY);
    this.data.push(arr);
  }
  return this;
};
/**
 * [function 填充指定行数数据 from up to down]
 * @param  {[type]} row [description]
 * @return {[type]}     [description]
 */
BreakBlock.prototype.fill = function(row) {
  while(row--) {
    var col = this.data[row].length;
    while(col--) this.data[
      row ][ col
    ] = BreakBlock.CONST.BLOCK;
  }
  return this;
};
/**
 * [function 移动到指定位置]
 *
 * Y           N
 * |           |
 * |     1     |    2
 * |           |
 * W-----------+----------E
 * |           |
 * |     3     |    4
 * |           |
 * X-----------S-----------
 *
 * @param  {[type]} x [description]
 * @param  {[type]} y [description]
 * @return {[type]}   [description]
 */
BreakBlock.prototype.next = function(){
  
  var x = this.position[ BreakBlock.AXIS.X ];
  var y = this.position[ BreakBlock.AXIS.Y ];
  
  switch (this.direction) {
    case BreakBlock.DIRECTION.N:
      // y++;
      // if(y is max){
      //  this.direction = BreakBlock.DIRECTION.S;
      // }
      break;
    case BreakBlock.DIRECTION.S  : this.direction = BreakBlock.DIRECTION.N  ; break;
    case BreakBlock.DIRECTION.W  : this.direction = BreakBlock.DIRECTION.E  ; break;
    case BreakBlock.DIRECTION.E  : this.direction = BreakBlock.DIRECTION.W  ; break;
    case BreakBlock.DIRECTION.NW:
      // x--;
      // y++;
      // if(y is max){
      //
      // }
      // this.direction = BreakBlock.DIRECTION.SW;
      break;
    case BreakBlock.DIRECTION.NE : break;
    case BreakBlock.DIRECTION.SW : this.direction = BreakBlock.DIRECTION.NW ; break;
    case BreakBlock.DIRECTION.SE :
      x
      // this.direction = BreakBlock.DIRECTION.NE ;
      break;
  }
  return this;
};

/**
 * [function]
 * @return {[type]} [description]
 */
BreakBlock.prototype.get = function(x, y){
  return this.data[ (this.data.length - 1) - y ][ x ];
  return this;
};

/**
 * [function]
 * @return {[type]} [description]
 */
BreakBlock.prototype.left = function(){
  return this;
};

/**
 * [function]
 * @return {[type]} [description]
 */
BreakBlock.prototype.right = function(){
  return this;
};

var bb = new BreakBlock().init(10, 10).fill(5);

setInterval(function(){
  console.log(bb.next());
}, 1000);