private void func_21030_a(World world, int i, int j, int k, int l, int i1, int j1) {
int k1 = world.getBlockMetadata(i, j, k);
int l1 = 0;
wiresProvidePower = false;
boolean flag = world.isBlockIndirectlyGettingPowered(i, j, k);
wiresProvidePower = true;
if (flag) {
l1 = 15;
} else {
for (int i2 = 0; i2 < 4; i2++) {
int k2 = i;
int i3 = k;
if (i2 == 0) {
k2--;
}
if (i2 == 1) {
k2++;
}
if (i2 == 2) {
i3--;
}
if (i2 == 3) {
i3++;
}
if (k2 != l || j != i1 || i3 != j1) {
l1 = getMaxCurrentStrength(world, k2, j, i3, l1);
}
if (world.isBlockOpaqueCube(k2, j, i3) && !world.isBlockOpaqueCube(i, j + 1, k)) {
if (k2 != l || j + 1 != i1 || i3 != j1) {
l1 = getMaxCurrentStrength(world, k2, j + 1, i3, l1);
}
continue;
}
if (!world.isBlockOpaqueCube(k2, j, i3) && (k2 != l || j - 1 != i1 || i3 != j1)) {
l1 = getMaxCurrentStrength(world, k2, j - 1, i3, l1);
}
}
if (l1 > 0) {
l1--;
} else {
l1 = 0;
}
}
if (k1 != l1) {
world.field_1043_h = true;
world.setBlockMetadataWithNotify(i, j, k, l1);
world.markBlocksDirty(i, j, k, i, j, k);
world.field_1043_h = false;
for (int j2 = 0; j2 < 4; j2++) {
int l2 = i;
int j3 = k;
int k3 = j - 1;
if (j2 == 0) {
l2--;
}
if (j2 == 1) {
l2++;
}
if (j2 == 2) {
j3--;
}
if (j2 == 3) {
j3++;
}
if (world.isBlockOpaqueCube(l2, j, j3)) {
k3 += 2;
}
int l3 = 0;
l3 = getMaxCurrentStrength(world, l2, j, j3, -1);
l1 = world.getBlockMetadata(i, j, k);
if (l1 > 0) {
l1--;
}
if (l3 >= 0 && l3 != l1) {
func_21030_a(world, l2, j, j3, i, j, k);
}
l3 = getMaxCurrentStrength(world, l2, k3, j3, -1);
l1 = world.getBlockMetadata(i, j, k);
if (l1 > 0) {
l1--;
}
if (l3 >= 0 && l3 != l1) {
func_21030_a(world, l2, k3, j3, i, j, k);
}
}
if (k1 == 0 || l1 == 0) {
field_21031_b.add(new ChunkPosition(i, j, k));
field_21031_b.add(new ChunkPosition(i - 1, j, k));
field_21031_b.add(new ChunkPosition(i + 1, j, k));
field_21031_b.add(new ChunkPosition(i, j - 1, k));
field_21031_b.add(new ChunkPosition(i, j + 1, k));
field_21031_b.add(new ChunkPosition(i, j, k - 1));
field_21031_b.add(new ChunkPosition(i, j, k + 1));
}
}
}