Added Achievement and Statistics

src/main/java/org/bukkit/Achievement.java

@@ -0,0 +1,67 @@
+
+package org.bukkit;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Represents an achievement, which may be given to players
+ */
+public enum Achievement {
+    OPEN_INVENTORY(0),
+    MINE_WOOD(1),
+    BUILD_WORKBENCH(2),
+    BUILD_PICKAXE(3),
+    BUILD_FURNACE(4),
+    ACQUIRE_IRON(5),
+    BUILD_HOE(6),
+    MAKE_BREAD(7),
+    BAKE_CAKE(8),
+    BUILD_BETTER_PICKAXE(9),
+    COOK_FISH(10),
+    ON_A_RAIL(11),
+    BUILD_SWORD(12),
+    KILL_ENEMY(13),
+    KILL_COW(14),
+    FLY_PIG(15);
+
+    /**
+     * The offset used to distinguish Achievements and Statistics
+     */
+    public final static int STATISTIC_OFFSET = 5242880;
+    private final static Map<Integer, Achievement> achievements = new HashMap<Integer, Achievement>();
+    private final int id;
+    
+    private Achievement(int id) {
+       this.id = STATISTIC_OFFSET + id;
+    }
+
+    /**
+     * Gets the ID for this achievement.
+     *
+     * Note that this is offset using {@link #STATISTIC_OFFSET}
+     *
+     * @return ID of this achievement
+     */
+    public int getId() {
+        return id;
+    }
+
+    /**
+     * Gets the achievement associated with the given ID.
+     *
+     * Note that the ID must already be offset using {@link #STATISTIC_OFFSET}
+     *
+     * @param id ID of the achievement to return
+     * @return Achievement with the given ID
+     */
+    public static Achievement getAchievement(int id) {
+        return achievements.get(id);
+    }
+
+    static {
+        for (Achievement ach : values()) {
+            achievements.put(ach.getId(), ach);
+        }
+    }
+}

src/main/java/org/bukkit/Statistic.java

@@ -0,0 +1,84 @@
+
+package org.bukkit;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Represents a countable statistic, which is collected by the client
+ */
+public enum Statistic {
+    DAMAGE_DEALT(2020),
+    DAMAGE_TAKEN(2021),
+    DEATHS(2022),
+    MOB_KILLS(2023),
+    PLAYER_KILLS(2024),
+    FISH_CAUGHT(2025),
+    MINE_BLOCK(16777216, true),
+    USE_ITEM(6908288, false),
+    BREAK_ITEM(16973824, true);
+
+    private final static Map<Integer, Statistic> statistics = new HashMap<Integer, Statistic>();
+    private final int id;
+    private final boolean isSubstat;
+    private final boolean isBlock;
+
+    private Statistic(int id) {
+       this(id, false, false);
+    }
+    
+    private Statistic(int id, boolean isBlock) {
+        this(id, true, isBlock);
+    }
+
+    private Statistic(int id, boolean isSubstat, boolean isBlock) {
+        this.id = id;
+        this.isSubstat = isSubstat;
+        this.isBlock = isBlock;
+    }
+
+    /**
+     * Gets the ID for this statistic.
+     *
+     * @return ID of this statistic
+     */
+    public int getId() {
+        return id;
+    }
+
+    /**
+     * Checks if this is a substatistic.
+     *
+     * A substatistic exists in mass for each block or item, depending on {@link #isBlock()}
+     *
+     * @return true if this is a substatistic
+     */
+    public boolean isSubstatistic() {
+        return isSubstat;
+    }
+
+    /**
+     * Checks if this is a substatistic dealing with blocks (As opposed to items)
+     *
+     * @return true if this deals with blocks, false if with items
+     */
+    public boolean isBlock() {
+        return isSubstat && isBlock;
+    }
+
+    /**
+     * Gets the statistic associated with the given ID.
+     *
+     * @param id ID of the statistic to return
+     * @return statistic with the given ID
+     */
+    public static Statistic getStatistic(int id) {
+        return statistics.get(id);
+    }
+
+    static {
+        for (Statistic stat : values()) {
+            statistics.put(stat.getId(), stat);
+        }
+    }
+}

src/main/java/org/bukkit/entity/Player.java

@@ -2,7 +2,10 @@
 package org.bukkit.entity;
 
 import java.net.InetSocketAddress;
+import org.bukkit.Achievement;
 import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.Statistic;
 import org.bukkit.command.CommandSender;
 
 /**
@@ -135,4 +138,43 @@ public interface Player extends HumanEntity, CommandSender {
      * @deprecated This method should not be relied upon as it is a temporary work-around for a larger, more complicated issue.
      */
     public void updateInventory();
+
+    /**
+     * Awards this player the given achievement
+     *
+     * @param achievement Achievement to award
+     */
+    public void awardAchievement(Achievement achievement);
+
+    /**
+     * Increments the given statistic for this player
+     *
+     * @param statistic Statistic to increment
+     */
+    public void incrementStatistic(Statistic statistic);
+
+    /**
+     * Increments the given statistic for this player
+     *
+     * @param statistic Statistic to increment
+     * @param amount Amount to increment this statistic by
+     */
+    public void incrementStatistic(Statistic statistic, int amount);
+
+    /**
+     * Increments the given statistic for this player for the given material
+     *
+     * @param statistic Statistic to increment
+     * @param material Material to offset the statistic with
+     */
+    public void incrementStatistic(Statistic statistic, Material material);
+
+    /**
+     * Increments the given statistic for this player for the given material
+     *
+     * @param statistic Statistic to increment
+     * @param material Material to offset the statistic with
+     * @param amount Amount to increment this statistic by
+     */
+    public void incrementStatistic(Statistic statistic, Material material, int amount);
 }