You can't use bone meal on a sapling placed on tilled dirt. If you try, one bone meal will be consumed but nothing will happen.
Tried on both 1.4.5 and 1.4.6
Linked issues
is duplicated by 2
Comments 15
I saw a post earlier about saplings not growing under a roof, but the saplings I planted on farmland wouldn't grow under normal circumstances. They were under direct sunlight and had plenty of space.
This is true, and because the proper conditions seem to be met, it is indeed not a duplicate of that other bug.
Fixes
(Note, the reversed logic is just to reduce indentation for the code that follows. If the y check is also removed, it was unnecessary (as there is already one earlier).)
WorldGenTrees.generate()
...
blockId = world.getBlockId(x, y - 1, z);
//if ((blockId == Block.grass.blockID || blockId == Block.dirt.blockID) && y < 256 - height - 1) {
if (blockId != Block.grass.blockID && blockId != Block.dirt.blockID && blockId != Block.tilledField.blockID )
return false;
...WorldGenForest.generate()
int groundBlockId = par1World.getBlockId(x, y - 1, z);
//if ((groundBlockId == Block.grass.blockID || groundBlockId == Block.dirt.blockID) && y < 256 - var6 - 1) {
if (groundBlockId != Block.grass.blockID && groundBlockId != Block.dirt.blockID && groundBlockId != Block.tilledField.blockID)
return false;
...WorldGenBigTree.validTreeLocation()
...
int blockId = this.worldObj.getBlockId(this.basePos[0], this.basePos[1] - 1, this.basePos[2]);
//if (blockId != 2 && blockId != 3)
if (blockId != Block.grass.blockID && blockId != Block.dirt.blockID && blockId != Block.tilledField.blockID)
return false;
...WorldGenHugeTrees.generate()
...
var12 = world.getBlockId(var10, var8, var11);
if (var12 != 0 && var12 != Block.leaves.blockID && var12 != Block.grass.blockID
&& var12 != Block.dirt.blockID && var12 != Block.wood.blockID && var12 != Block.sapling.blockID
&& var12 != Block.tilledField.blockID) { // ADDED
var7 = false;
}
...
...
int groundBlockId = world.getBlockId(x, y - 1, z);
//if ((groundBlockId == Block.grass.blockID || groundBlockId == Block.dirt.blockID) && y < 256 - var6 - 1) {
if (groundBlockId != Block.grass.blockID && groundBlockId != Block.dirt.blockID && groundBlockId != Block.tilledField.blockID)
return false;
...WorldGenTaiga2
...
int groundBlockId = world.getBlockId(x, y - 1, z);
//if ((groundBlockId == Block.grass.blockID || groundBlockId == Block.dirt.blockID) && y < 256 - var6 - 1) {
if (groundBlockId != Block.grass.blockID && groundBlockId != Block.dirt.blockID && groundBlockId != Block.tilledField.blockID)
return false;
...WorldGenTaiga1 should also be given the same treatment, although it seems it is only used from world generation (which probably isn't trying to grow trees on farmland).
Background
Saplings (like flowers) are specifically allowed to be planted on three block types:
protected boolean canThisPlantGrowOnThisBlockID(int par1) {
return par1 == Block.grass.blockID || par1 == Block.dirt.blockID || par1 == Block.tilledField.blockID;
}However, the tree generators only check for two of the block types, perhaps because trees are older stuff than farmland and their code was forgotten to be updated (curses of not following proper programming practices).
Apparently mushrooms are not allowed to be planted on tilled dirt (I wonder why not? one can plant them even on iron block), but since they can not be planted there, there is no need to fix their huge version growth, either (for now, at least).
@Kumasasa random thought, if it were to be reimplemented via minecraftsuggestions, will it be ensured that it won't just be seen as a bug by someone and re-reported as a bug and have it removed again?
@EclipsEyE: I believe that you can place saplings in flower pots without them growing (not the same thing, but the closest to it I guess).
@Sonicwave yeah... it would depend on the sapling, anyway, I followed @Kumasasa 's advice and posted it on the minecraftsuggestions reddit http://www.reddit.com/r/minecraftsuggestions/
migrated
Can confirm, though not sure if intended.