According to testing I've done today with 1.13.1 vs 1.12.2, this bug does not appear to be fixed after all. Ore generation is still significantly different.
Using similar methods to the above, and looking at a 181x181x64 sample from the same coordinates in the same seed, I counted every block of every overworld ore type in both versions, and here is what I found:
Ore Type
1.13.1
1.12.2
Diff%
Coal
25,375
23,308
8.9%
Iron
13,485
13,414
0.5%
Gold
2,320
1,193
94.5%
Diamond
290
495
-41.4%
Lapis
435
507
-14.2%
Redstone
4,785
3,598
33.0%
This is a test of about half a million blocks. Obviously a larger sample size would be required to get an accurate Diff% for all cases, but this test should be enough to show that concentrations still vary very significantly between 1.12.2 and 1.13.1.
Lukahna
According to testing I've done today with 1.13.1 vs 1.12.2, this bug does not appear to be fixed after all. Ore generation is still significantly different.
Using similar methods to the above, and looking at a 181x181x64 sample from the same coordinates in the same seed, I counted every block of every overworld ore type in both versions, and here is what I found:
Ore Type
1.13.1
1.12.2
Diff%
Coal
25,375
23,308
8.9%
Iron
13,485
13,414
0.5%
Gold
2,320
1,193
94.5%
Diamond
290
495
-41.4%
Lapis
435
507
-14.2%
Redstone
4,785
3,598
33.0%
This is a test of about half a million blocks. Obviously a larger sample size would be required to get an accurate Diff% for all cases, but this test should be enough to show that concentrations still vary very significantly between 1.12.2 and 1.13.1.