reimplement aether stuff from personal repo

Minecraft.World/AetherSaplingTile.cpp

@@ -0,0 +1,64 @@
+#include "stdafx.h"
+#include "AetherSaplingTile.h"
+#include "SkyrootTreeFeature.h"
+#include "GoldenOakTreeFeature.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.tile.h"
+#include "net.minecraft.world.h"
+
+AetherSaplingTile::AetherSaplingTile(int id) : AetherBushTile(id)
+{
+}
+
+void AetherSaplingTile::tick(Level *level, int x, int y, int z, Random *random)
+{
+	if (level->isClientSide) return;
+
+	Bush::tick(level, x, y, z, random);
+
+	if (level->getRawBrightness(x, y + 1, z) >= Level::MAX_BRIGHTNESS - 6)
+	{
+		if (random->nextInt(7) == 0)
+		{
+			int data = level->getData(x, y, z);
+			if ((data & AGE_BIT) == 0)
+			{
+				level->setData(x, y, z, data | AGE_BIT);
+			}
+			else
+			{
+				growTree(level, x, y, z, random);
+			}
+		}
+	}
+}
+
+void AetherSaplingTile::growTree(Level *level, int x, int y, int z, Random *random)
+{
+	Feature *f = NULL;
+
+	if (this->id == Tile::skyrootSapling_Id)
+	{
+		f = new SkyrootTreeFeature(true);
+	}
+	else if (this->id == Tile::goldenOakSapling_Id)
+	{
+		f = new GoldenOakTreeFeature(true);
+	}
+	else
+	{
+		return;
+	}
+
+	// Remove sapling before attempting to place tree
+	level->setTileNoUpdate(x, y, z, 0);
+
+	if (!f->place(level, random, x, y, z))
+	{
+		// Restore sapling if tree placement failed
+		int data = level->getData(x, y, z);
+		level->setTileAndDataNoUpdate(x, y, z, this->id, data);
+	}
+
+	delete f;
+}