More biomes

core/src/main/java/mc/core/world/Biome.java

@@ -3,8 +3,29 @@ package mc.core.world;
 import lombok.Getter;
 
 public enum Biome {
-    PLAIN(0, "Plain"),
-    DESERT(1, "Desert");
+    OCEAN(0, "Ocean"),
+    PLAINS(1, "Plains"),
+    DESERT(2, "Desert"),
+    EXTREME_HILLS(3, "Extreme hills"),
+    FOREST(4, "Forest"),
+    TAIGA(5, "Taiga"),
+    SWAMPLAND(6, "Swampland"),
+    RIVER(7, "River"),
+    HELL(8, "Hell"),
+    SKY(9, "Sky"),
+    FROZEN_OCEAN(10, "Frozen ocean"),
+    FROZEN_RIVER(11, "Frozen river"),
+    ICE_PLAINS(12, "Ice plains"),
+    ICE_MOUNTAINS(13, "Ice mountains"),
+    MUSHROOM_ISLAND(14, "Mushroom island"),
+    MUSHROOM_ISLAND_SHORE(15, "Mushroom island shore"),
+    BEACH(16, "Beach"),
+    DESERT_HILLS(17, "Desert hills"),
+    FOREST_HILLS(18, "Forest hills"),
+    TAIGA_HILLS(19, "Taiga hills"),
+    EXTREME_HILLS_EDGE(20, "Extreme hills edge"),
+    JUNGLE(21, "Jungle"),
+    JUNGLE_HILLS(22, "Jungle hills");
 
     @Getter
     private final int id;

core/src/main/java/mc/core/world/Chunk.java

@@ -12,8 +12,6 @@ import mc.core.block.Block;
  * +-------------+----------------+------------+
  * | param       | range          | bits       |
  * +-------------+----------------+------------+
- * | biomeMap    | 16x16 0-16     | 4096       |
- * +-------------+----------------+------------+
  * |             |                | 3          |
  * +-------------+----------------+------------+
  * | block_count | 0:4096         | 13         |
@@ -21,8 +19,8 @@ import mc.core.block.Block;
  * | blocks      | array          | 24*count   |
  * +-------------+----------------+------------+
  *
- * Total: 4112 bits header (514 bytes) + 24 * block_count bits (3 * block_count bytes)
- * Max size: 12802 bytes (~13 Mb per chunk)
+ * Total: 16 bits header (2 bytes) + 24 * block_count bits (3 * block_count bytes)
+ * Max size: 12290 bytes (~12 Mb per chunk)
  *
  */
 /* 16x16x16 */

core/src/main/java/mc/core/world/Region.java

@@ -3,6 +3,16 @@ package mc.core.world;
 /**
  * Simple world generation unit
  * 16x16x16 chunks
+ *
+ *
+ * +-------------+----------------+------------+
+ * | param       | range          | bits       |
+ * +-------------+----------------+------------+
+ * | biome_map   | 256x256 0-32   | 2097152    |
+ * +-------------+----------------+------------+
+ *
+ * Total: 2097152 bits (262144 bytes = 256 Mb)
+ *
  */
 public interface Region {
     Chunk getChunkAt(int x, int y, int z);

core/src/main/java/mc/core/world/World.java

@@ -8,6 +8,26 @@ import mc.core.Location;
 
 import java.util.UUID;
 
+/**
+ * WorldInfo
+ * +-------------+----------------+------------+
+ * | param       | range          | bits       |
+ * +-------------+----------------+------------+
+ * | worldId     | uuid           | 128        |
+ * +-------------+----------------+------------+
+ * | worldName   | string [0-64]  | 512        |
+ * +-------------+----------------+------------+
+ * | spawnX      | -524288:524287 | 20         |
+ * +-------------+----------------+------------+
+ * | spawnY      | 0:255          | 8          |
+ * +-------------+----------------+------------+
+ * | spawnZ      | -524288:524287 | 20         |
+ * +-------------+----------------+------------+
+ * | seed        | long           | 64         |
+ * +-------------+----------------+------------+
+ *
+ */
+
 public interface World {
     UUID getWorldId();
     IWorldType getWorldType();
@@ -17,4 +37,6 @@ public interface World {
 
     Chunk getChunk(int x, int y, int z);
     void setChunk(int x, int y, int z, Chunk chunk);
+
+    long getSeed ();
 }

flat_world/src/main/java/mc/world/flat/SimpleChunk.java

@@ -65,7 +65,7 @@ public class SimpleChunk implements Chunk {
 
     @Override
     public Biome getBiome(int x, int z) {
-        return Biome.PLAIN;
+        return Biome.PLAINS;
     }
 
     @Override