public Region(long initialTemp, double[] tc,
            int i, int j, Alloy sa) {
        this.sa = sa;
        sa.temps[0][i][j] = initialTemp;
        sa.temps[1][i][j] = initialTemp;
        thermalConstants = tc;
        calculatePercentages();
        constantTemp = false;
        this.indexI = i;
        this.indexJ = j;
    }