private void initTiles()
{
    // Forgive me Gang of Four wherever you are.
    //4 fields, 4 forest, 4 pasture, 3 mountains, 3 hills, 1 desert
    //19 total
    // + 18 water
    Tile.UnfinishedTile t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10, t11,
        t12, t13, t14, t15, t16, t17, t18, water;
    //This line initializes all the ts to null so that I can refer to them
    //later, because otherwise it thinks the try block can fail and leave
    //them uninitialized, even though the exception is never actually
    //thrown.
    t0=t1=t2=t3=t4=t5=t6=t7=t8=t9=t10=t11=t12=t13=t14=t15=t16=t17=t18=null;
    water = null;
    Integer[] ns = shuffle(
        2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12
    );
    Tile.Terrain[] ts = shuffle(
      FIELD, FIELD, FIELD, FIELD,
      FOREST, FOREST, FOREST, FOREST,
      PASTURE, PASTURE, PASTURE, PASTURE,
      MOUNTAIN, MOUNTAIN, MOUNTAIN,
      HILL, HILL, HILL,
      DESERT
    );
    try {
        int i=0;
        t0 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t1 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t2 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t3 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t4 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t5 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t6 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t7 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t8 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t9 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t10 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t11 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t12 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t13 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t14 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t15 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t16 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t17 = new Tile.UnfinishedTile(ts[i], ns[i++]);
        t18 = new Tile.UnfinishedTile(ts[i], ns[i]);
        water = new Tile.UnfinishedTile(WATER, 0);
    } catch (Tile.NeedsNeighborsException e) {
        // Duly noted, and addressed below.
    }
    t0.setNeighbors(water, water, t2, t4, t1, water);
    t1.setNeighbors(water, t0, t4, t6, t3, water);
    t2.setNeighbors(water, water, t5, t7, t4, t0);
    t3.setNeighbors(water, t1, t6, t8, water, water);
    t4.setNeighbors(t0, t2, t7, t9, t6, t1);
    t5.setNeighbors(water, water, water, t10, t7, t2);
    t6.setNeighbors(t1, t4, t9, t11, t8, t3);
    t7.setNeighbors(t2, t5, t10, t12, t9, t4);
    t8.setNeighbors(t3, t6, t11, t13, water, water);
    t9.setNeighbors(t4, t7, t12, t14, t11, t6);
    t10.setNeighbors(t5, water, water, t15, t12, t7);
    t11.setNeighbors(t6, t9, t14, t16, t13, t8);
    t12.setNeighbors(t7, t10, t15, t17, t14, t9);
    t13.setNeighbors(t8, t11, t16, water, water, water);
    t14.setNeighbors(t9, t12, t17, t18, t16, t11);
    t15.setNeighbors(t10, water, water, water, t17, t12);
    t16.setNeighbors(t11, t14, t18, water, water, t13);
    t17.setNeighbors(t12, t15, water, water, t18, t14);
    t18.setNeighbors(t14, t17, water, water, water, t16);
}