Paper/patches/api/0018-Add-view-distance-API.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Byteflux <byte@byteflux.net>
Date: Mon, 29 Feb 2016 18:05:37 -0600
Subject: [PATCH] Add view distance API

Add per player no-tick, tick, and send view distances.

Also add send/no-tick view distance to World.

diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index d76db156a7eeefaac3c96d2d547fddecefbd863e..41a181b890e029f99e52ae9aad28a86f28005f9e 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -2916,6 +2916,66 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
     @NotNull
     public Set<FeatureFlag> getFeatureFlags();
 
+    // Paper start - view distance api
+    /**
+     * Sets the view distance for this world.
+     * @param viewDistance view distance in [2, 32]
+     */
+    void setViewDistance(int viewDistance);
+
+    /**
+     * Sets the simulation distance for this world.
+     * @param simulationDistance simulation distance in [2, 32]
+     */
+    void setSimulationDistance(int simulationDistance);
+
+    /**
+     * Returns the no-tick view distance for this world.
+     * <p>
+     * No-tick view distance is the view distance where chunks will load, however the chunks and their entities will not
+     * be set to tick.
+     * </p>
+     * @return The no-tick view distance for this world.
+     * @deprecated Use {@link #getViewDistance()}
+     */
+    @Deprecated
+    default int getNoTickViewDistance() {
+        return this.getViewDistance();
+    }
+
+    /**
+     * Sets the no-tick view distance for this world.
+     * <p>
+     * No-tick view distance is the view distance where chunks will load, however the chunks and their entities will not
+     * be set to tick.
+     * </p>
+     * @param viewDistance view distance in [2, 32]
+     * @deprecated Use {@link #setViewDistance(int)}
+     */
+    @Deprecated
+    default void setNoTickViewDistance(int viewDistance) {
+        this.setViewDistance(viewDistance);
+    }
+
+    /**
+     * Gets the sending view distance for this world.
+     * <p>
+     * Sending view distance is the view distance where chunks will load in for players in this world.
+     * </p>
+     * @return The sending view distance for this world.
+     */
+    int getSendViewDistance();
+
+    /**
+     * Sets the sending view distance for this world.
+     * <p>
+     * Sending view distance is the view distance where chunks will load in for players in this world.
+     * </p>
+     * @param viewDistance view distance in [2, 32] or -1
+     */
+    void setSendViewDistance(int viewDistance);
+    // Paper end - view distance api
+
     /**
      * Gets all generated structures that intersect the chunk at the given
      * coordinates. <br>
diff --git a/src/main/java/org/bukkit/entity/Player.java b/src/main/java/org/bukkit/entity/Player.java
index 35de65a773146c4b4162df777a8ec594a22ca62c..b66f9264ceb38677d7422b47e379a0e860bcac07 100644
--- a/src/main/java/org/bukkit/entity/Player.java
+++ b/src/main/java/org/bukkit/entity/Player.java
@@ -2500,6 +2500,82 @@ public interface Player extends HumanEntity, Conversable, OfflinePlayer, PluginM
      * @param affects Whether the player can affect mob spawning
      */
     public void setAffectsSpawning(boolean affects);
+
+    /**
+     * Gets the view distance for this player
+     *
+     * @return the player's view distance
+     * @see org.bukkit.World#getViewDistance()
+     */
+    public int getViewDistance();
+
+    /**
+     * Sets the view distance for this player
+     *
+     * @param viewDistance the player's view distance
+     * @see org.bukkit.World#setViewDistance(int)
+     */
+    public void setViewDistance(int viewDistance);
+
+    /**
+     * Gets the simulation distance for this player
+     *
+     * @return the player's simulation distance
+     */
+    public int getSimulationDistance();
+
+    /**
+     * Sets the simulation distance for this player
+     *
+     * @param simulationDistance the player's new simulation distance
+     */
+    public void setSimulationDistance(int simulationDistance);
+    
+    /**
+     * Gets the no-ticking view distance for this player.
+     * <p>
+     * No-tick view distance is the view distance where chunks will load, however the chunks and their entities will not
+     * be set to tick.
+     * </p>
+     * @return The no-tick view distance for this player.
+     * @deprecated Use {@link #getViewDistance()}
+     */
+    @Deprecated
+    default int getNoTickViewDistance() {
+        return this.getViewDistance();
+    }
+
+    /**
+     * Sets the no-ticking view distance for this player.
+     * <p>
+     * No-tick view distance is the view distance where chunks will load, however the chunks and their entities will not
+     * be set to tick.
+     * </p>
+     * @param viewDistance view distance in [2, 32] or -1
+     * @deprecated Use {@link #setViewDistance(int)}
+     */
+    @Deprecated
+    default void setNoTickViewDistance(int viewDistance) {
+        this.setViewDistance(viewDistance);
+    }
+
+    /**
+     * Gets the sending view distance for this player.
+     * <p>
+     * Sending view distance is the view distance where chunks will load in for players.
+     * </p>
+     * @return The sending view distance for this player.
+     */
+    public int getSendViewDistance();
+
+    /**
+     * Sets the sending view distance for this player.
+     * <p>
+     * Sending view distance is the view distance where chunks will load in for players.
+     * </p>
+     * @param viewDistance view distance in [2, 32] or -1
+     */
+    public void setSendViewDistance(int viewDistance);
     // Paper end
 
     /**