The chance of one of the saplings growing into a tree is non existent as it requires 4 saplings together to grow into a tree.

So the real issue then is that even at 100% planting, they cannot regrow.

Then, perhaps something like "If a sapling would plant next to an existing sapling, then there is a chance that the 2x2 square is auto-generated".
Now, it's a case of "what auto-plant rate will make some 2x1's", as well as "What is the chance that a 2x1 will magically turn into a 2x2"?

Well I have a couple different ideas on how to "combat" this issue.

Idea 1 would be if a sapling tries to replant where an existing sapling is located it will instead try and complete the 2x2 instead of just failing.

The other thing is that currently it runs off of item stacks if there is more than one sapling in an item stack that tries to replant it will still only replant one sapling. We could make use of the item stack count and see about giving a much higher replant chance to stacks with 4 saplings in them and then try and fully plant the tree.

The last idea would be that if a sapling tries to replant for a 2x2 tree, then it would check to see if it could place the 2x2 pattern.

The easiest solution is to make the "self planting rate" for these trees 100%.

Then, there is a chance that a 2x2 will occur.

Actually it won't because then there would be to many of them. In the ones I tested yesterday, there were many where 2 landed next to each other....if all of those self planted then the forest would be taken over by the tree.

But the question is, how many cases did a 2x2 -- 4 saplings -- land next to each other?

If it's around 1.3 times per tree, then that's good.
If not, perhaps an 80% replant rate? 90%? At some point, "nearly all" will work.

There were no cases of the 2x2 landing next to each other, and I tested
with a lot of trees. Because where these trees grow and the number of
bushes and ferns on the ground, it limits the number of places that the
saplings can even land and have a chance to self plant. The most that
landed together were 3...but they were in a row, not in the pattern to grow
a 2x2 tree.

On Sun, Jul 28, 2013 at 5:50 PM, keybounce [email protected] wrote:

But the question is, how many cases did a 2x2 -- 4 saplings -- land next
to each other?

If it's around 1.3 times per tree, then that's good.
If not, perhaps an 80% replant rate? 90%? At some point, "nearly all" will
work.

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/322#issuecomment-21692861
.

Would this not also be the case for Redwood trees as well seeing as they're also 2x2, as well as a good portion of the firs?

For 3.14.1 trees that grow in 2x2 forms will try to replant as such. Also every sapling in an item stack on the ground that expires at the same time now has it's own chance of replanting, this is especially helpful for 2x2 trees. This may see more work later.