//??旋轉
Square.prototype.canRotate?=?function?(isValid)?{
????let?d?=?(this.dire?+?1)?%?4;
????let?test?=?[
????????[0,?0,?0,?0],
????????[0,?0,?0,?0],
????????[0,?0,?0,?0],
????????[0,?0,?0,?0]
????];
????for?(let?i?=?0;?i?<?this.data.length;?i++)?{
????????for?(let?j?=?0;?j?<?this.data[0].length;?j++)?{
????????????test[i][j]?=?this.rotates[d][i][j];
????????}
????}
????return?isValid(this.origin,?test);
};
Square.prototype._rotate?=?function?(num)?{
????if?(!num)?{
????????num?=?1;
????}
????this.dir?=?(this.dir?+?num)?%?4;
????this.dire?+=?1;
????for?(let?i?=?0;?i?<?this.data.length;?i++)?{
????????for?(let?j?=?0;?j?<?this.data[0].length;?j++)?{
????????????this.data[i][j]?=?this.rotates[this.dire][i][j];
????????}
????}
};