Added GameMode methods to Server and HumanEntity

By: Dinnerbone <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/GameMode.java

@@ -0,0 +1,18 @@
+package org.bukkit;
+
+import org.bukkit.entity.HumanEntity;
+
+/**
+ * Represents the various type of game modes that {@link HumanEntity}s may have
+ */
+public enum GameMode {
+    /**
+     * Creative mode may fly, build instantly, become invulnerable and create free items
+     */
+    CREATIVE,
+    
+    /**
+     * Survival mode is the "normal" gameplay type, with no special features.
+     */
+    SURVIVAL;
+}

paper-api/src/main/java/org/bukkit/Server.java

@@ -441,4 +441,18 @@ public interface Server {
      * @return Set containing banned players
      */
     public Set<OfflinePlayer> getBannedPlayers();
+
+    /**
+     * Gets the default {@link GameMode} for new players
+     *
+     * @return Default game mode
+     */
+    public GameMode getDefaultGameMode();
+
+    /**
+     * Sets the default {@link GameMode} for new players
+     *
+     * @param mode New game mode
+     */
+    public void setDefaultGameMode(GameMode mode);
 }

paper-api/src/main/java/org/bukkit/entity/HumanEntity.java

@@ -1,5 +1,6 @@
 package org.bukkit.entity;
 
+import org.bukkit.GameMode;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.PlayerInventory;
 import org.bukkit.permissions.Permissible;
@@ -60,4 +61,18 @@ public interface HumanEntity extends LivingEntity, AnimalTamer, Permissible {
      * @return slumber ticks
      */
     public int getSleepTicks();
+
+    /**
+     * Gets this humans current {@link GameMode}
+     *
+     * @return Current game mode
+     */
+    public GameMode getGameMode();
+
+    /**
+     * Sets this humans current {@link GameMode}
+     *
+     * @param mode New game mode
+     */
+    public void setGameMode(GameMode mode);
 }