the whole game

src/world/level/levelgen/feature/PineFeature.h

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+#ifndef NET_MINECRAFT_WORLD_LEVEL_LEVELGEN_FEATURE__PineFeature_H__
+#define NET_MINECRAFT_WORLD_LEVEL_LEVELGEN_FEATURE__PineFeature_H__
+
+//package net.minecraft.world.level->levelgen.feature;
+
+#include "Feature.h"
+#include "../../../../util/Random.h"
+#include "../../Level.h"
+#include "../../tile/LeafTile.h"
+#include "../../tile/Tile.h"
+#include "../../tile/TreeTile.h"
+
+class PineFeature: public Feature
+{
+	typedef Feature super;
+public:
+	PineFeature(bool doUpdate = false)
+	:	super(doUpdate)
+	{
+	}
+
+    bool place(Level* level, Random* random, int x, int y, int z) {
+
+        // pines can be quite tall
+        int treeHeight = random->nextInt(5) + 7;
+        int trunkHeight = treeHeight - random->nextInt(2) - 3;
+        int topHeight = treeHeight - trunkHeight;
+        int topRadius = 1 + random->nextInt(topHeight + 1);
+
+        bool free = true;
+        // may not be outside of y boundaries
+        if (y < 1 || y + treeHeight + 1 > Level::DEPTH) {
+            return false;
+        }
+
+        // make sure there is enough space
+        for (int yy = y; yy <= y + 1 + treeHeight && free; yy++) {
+
+            int r = 1;
+            if ((yy - y) < trunkHeight) {
+                r = 0;
+            } else {
+                r = topRadius;
+            }
+            for (int xx = x - r; xx <= x + r && free; xx++) {
+                for (int zz = z - r; zz <= z + r && free; zz++) {
+                    if (yy >= 0 && yy < Level::DEPTH) {
+                        int tt = level->getTile(xx, yy, zz);
+                        if (tt != 0 && tt != Tile::leaves->id) free = false;
+                    } else {
+                        free = false;
+                    }
+                }
+            }
+        }
+
+        if (!free) return false;
+
+        // must stand on ground
+        int belowTile = level->getTile(x, y - 1, z);
+        if ((belowTile != ((Tile*)Tile::grass)->id && belowTile != Tile::dirt->id) || y >= Level::DEPTH - treeHeight - 1) return false;
+
+        placeBlock(level, x, y - 1, z, Tile::dirt->id);
+
+        // place leaf top
+        int currentRadius = 0;
+        for (int yy = y + treeHeight; yy >= y + trunkHeight; yy--) {
+
+            for (int xx = x - currentRadius; xx <= x + currentRadius; xx++) {
+                int xo = xx - (x);
+                for (int zz = z - currentRadius; zz <= z + currentRadius; zz++) {
+                    int zo = zz - (z);
+                    if (std::abs(xo) == currentRadius && std::abs(zo) == currentRadius && currentRadius > 0) continue;
+                    if (!Tile::solid[level->getTile(xx, yy, zz)]) placeBlock(level, xx, yy, zz, Tile::leaves->id, LeafTile::EVERGREEN_LEAF);
+                }
+            }
+
+            if (currentRadius >= 1 && yy == (y + trunkHeight + 1)) {
+                currentRadius -= 1;
+            } else if (currentRadius < topRadius) {
+                currentRadius += 1;
+            }
+        }
+        for (int hh = 0; hh < treeHeight - 1; hh++) {
+            int t = level->getTile(x, y + hh, z);
+            if (t == 0 || t == Tile::leaves->id) placeBlock(level, x, y + hh, z, Tile::treeTrunk->id, TreeTile::DARK_TRUNK);
+        }
+        return true;
+    }
+};
+
+#endif /*NET_MINECRAFT_WORLD_LEVEL_LEVELGEN_FEATURE__PineFeature_H__*/