first commit

Minecraft.World/LightGemFeature.cpp

@@ -0,0 +1,37 @@
+#include "stdafx.h"
+#include "net.minecraft.world.level.h"
+#include "net.minecraft.world.level.tile.h"
+#include "LightGemFeature.h"
+
+bool LightGemFeature::place(Level *level, Random *random, int x, int y, int z)
+{
+    if (!level->isEmptyTile(x, y, z)) return false;
+    if (level->getTile(x, y + 1, z) != Tile::hellRock_Id) return false;
+    level->setTile(x, y, z, Tile::lightGem_Id);
+
+    for (int i = 0; i < 1500; i++)
+	{
+        int x2 = x + random->nextInt(8) - random->nextInt(8);
+        int y2 = y - random->nextInt(12);
+        int z2 = z + random->nextInt(8) - random->nextInt(8);
+        if (level->getTile(x2, y2, z2) != 0) continue;
+
+        int count = 0;
+        for (int t = 0; t < 6; t++)
+		{
+            int tile = 0;
+            if (t == 0) tile = level->getTile(x2 - 1, y2, z2);
+            if (t == 1) tile = level->getTile(x2 + 1, y2, z2);
+            if (t == 2) tile = level->getTile(x2, y2 - 1, z2);
+            if (t == 3) tile = level->getTile(x2, y2 + 1, z2);
+            if (t == 4) tile = level->getTile(x2, y2, z2 - 1);
+            if (t == 5) tile = level->getTile(x2, y2, z2 + 1);
+
+            if (tile == Tile::lightGem_Id) count++;
+        }
+
+        if (count == 1) level->setTile(x2, y2, z2, Tile::lightGem_Id);
+    }
+
+    return true;
+}