Add WorldBorder API

By: TheCutter <info@thecutter.net>

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

@@ -1167,6 +1167,13 @@ public interface World extends PluginMessageRecipient, Metadatable {
      */
     public boolean isGameRule(String rule);
 
+    /**
+     * Gets the world border for this world.
+     *
+     * @return The world border for this world.
+     */
+    public WorldBorder getWorldBorder();
+
     /**
      * Represents various map environment types that a world may be
      */

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

@@ -0,0 +1,109 @@
+package org.bukkit;
+
+public interface WorldBorder {
+
+    /**
+     * Resets the border to default values.
+     */
+    public void reset();
+
+    /**
+     * Gets the current border size.
+     *
+     * @return The current size of the border.
+     */
+    public double getSize();
+
+    /**
+     * Sets the border to a square region with the specified size in blocks.
+     *
+     * @param newSize The new size of the border.
+     */
+    public void setSize(double newSize);
+
+    /**
+     * Sets the border to a square region with the specified size in blocks.
+     *
+     * @param newSize The new size of the border.
+     * @param seconds The time in seconds in which the border grows or shrinks from the previous size to that being set.
+     */
+    public void setSize(double newSize, long seconds);
+
+    /**
+     * Gets the current border center.
+     *
+     * @return The current border center.
+     */
+    public Location getCenter();
+
+    /**
+     * Sets the new border center.
+     *
+     * @param x The new center x-coordinate.
+     * @param z The new center z-coordinate.
+     */
+    public void setCenter(double x, double z);
+
+    /**
+     * Sets the new border center.
+     *
+     * @param location The new location of the border center. (Only x/z used)
+     */
+    public void setCenter(Location location);
+
+    /**
+     * Gets the current border damage buffer.
+     *
+     * @return The current border damage buffer.
+     */
+    public double getDamageBuffer();
+
+    /**
+     * Sets the amount of blocks a player may safely be outside the border before taking damage.
+     *
+     * @param blocks The amount of blocks. (The default is 5 blocks.)
+     */
+    public void setDamageBuffer(double blocks);
+
+    /**
+     * Gets the current border damage amount.
+     *
+     * @return The current border damage amount.
+     */
+    public double getDamageAmount();
+
+    /**
+     * Sets the amount of damage a player takes when outside the border plus the border buffer.
+     *
+     * @param damage The amount of damage. (The default is 0.2 damage per second per block.)
+     */
+    public void setDamageAmount(double damage);
+
+    /**
+     * Gets the current border warning time in seconds.
+     *
+     * @return The current border warning time in seconds.
+     */
+    public int getWarningTime();
+
+    /**
+     * Sets the warning time that causes the screen to be tinted red when a contracting border will reach the player within the specified time.
+     *
+     * @param seconds The amount of time in seconds. (The default is 15 seconds.)
+     */
+    public void setWarningTime(int seconds);
+
+    /**
+     * Gets the current border warning distance.
+     *
+     * @return The current border warning distance.
+     */
+    public int getWarningDistance();
+
+    /**
+     * Sets the warning distance that causes the screen to be tinted red when the player is within the specified number of blocks from the border.
+     *
+     * @param distance The distance in blocks. (The default is 5 blocks.)
+     */
+    public void setWarningDistance(int distance);
+}