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845090e570
If a plugin hacks into NMS and triggers entity removal, it could result in an entity being attempted to remove from the chunk twice. The 2nd pass will return false, as it did not find the entity in the list. We should not touch entity counts if the entity was not removed, to avoid going negative.
135 lines
3.7 KiB
Diff
135 lines
3.7 KiB
Diff
From a3092ca4d2f76ef79198b6011d380dadd4d5d601 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 28 Mar 2016 20:55:47 -0400
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Subject: [PATCH] MC Utils
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Collection of utils to help reduce NMS diff
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diff --git a/src/main/java/net/minecraft/server/MCUtil.java b/src/main/java/net/minecraft/server/MCUtil.java
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new file mode 100644
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index 0000000..ffd3152
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--- /dev/null
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+++ b/src/main/java/net/minecraft/server/MCUtil.java
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@@ -0,0 +1,119 @@
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+package net.minecraft.server;
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+
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+import org.bukkit.Location;
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+
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+import java.util.regex.Pattern;
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+
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+public class MCUtil {
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+ private static final Pattern REPLACE_QUOTES = Pattern.compile("\"");
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+
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+ private MCUtil() {}
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+
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+
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+ /**
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+ * Builds a chat componenent from a string.
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+ * @param str
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+ * @return
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+ */
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+ public static IChatBaseComponent cmpFromMessage(String str) {
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+ return IChatBaseComponent.ChatSerializer.a("{\"text\":\"" + REPLACE_QUOTES.matcher(str).replaceAll("\\\"") + "\"}");
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+ }
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+
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+ /**
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+ * Calculates distance between 2 entities
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+ * @param e1
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+ * @param e2
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+ * @return
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+ */
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+ public static double distance(Entity e1, Entity e2) {
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+ return Math.sqrt(distanceSq(e1, e2));
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+ }
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+
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+
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+ /**
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+ * Calculates distance between 2 block positions
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+ * @param e1
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+ * @param e2
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+ * @return
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+ */
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+ public static double distance(BlockPosition e1, BlockPosition e2) {
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+ return Math.sqrt(distanceSq(e1, e2));
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+ }
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+
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+ /**
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+ * Gets the distance between 2 positions
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+ * @param x1
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+ * @param y1
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+ * @param z1
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+ * @param x2
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+ * @param y2
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+ * @param z2
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+ * @return
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+ */
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+ public static double distance(double x1, double y1, double z1, double x2, double y2, double z2) {
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+ return Math.sqrt(distanceSq(x1, y1, z1, x2, y2, z2));
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+ }
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+
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+ /**
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+ * Get's the distance squared between 2 entities
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+ * @param e1
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+ * @param e2
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+ * @return
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+ */
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+ public static double distanceSq(Entity e1, Entity e2) {
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+ return distanceSq(e1.locX,e1.locY,e1.locZ, e2.locX,e2.locY,e2.locZ);
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+ }
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+
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+ /**
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+ * Gets the distance sqaured between 2 block positions
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+ * @param pos1
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+ * @param pos2
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+ * @return
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+ */
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+ public static double distanceSq(BlockPosition pos1, BlockPosition pos2) {
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+ return distanceSq(pos1.getX(), pos1.getY(), pos1.getZ(), pos2.getX(), pos2.getY(), pos2.getZ());
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+ }
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+
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+ /**
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+ * Gets the distance squared between 2 positions
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+ * @param x1
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+ * @param y1
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+ * @param z1
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+ * @param x2
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+ * @param y2
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+ * @param z2
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+ * @return
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+ */
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+ public static double distanceSq(double x1, double y1, double z1, double x2, double y2, double z2) {
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+ return (x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2) + (z1 - z2) * (z1 - z2);
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+ }
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+
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+ /**
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+ * Converts a NMS World/BlockPosition to Bukkit Location
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+ * @param world
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+ * @param pos
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+ * @return
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+ */
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+ public static Location toLocation(World world, BlockPosition pos) {
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+ return new Location(world.getWorld(), pos.getX(), pos.getY(), pos.getZ());
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+ }
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+
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+ /**
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+ * Converts an NMS entity's current location to a Bukkit Location
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+ * @param entity
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+ * @return
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+ */
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+ public static Location toLocation(Entity entity) {
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+ return new Location(entity.getWorld().getWorld(), entity.locX, entity.locY, entity.locZ);
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+ }
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+
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+ public static BlockPosition toBlockPosition(Location loc) {
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+ return new BlockPosition(loc.getBlockX(), loc.getBlockY(), loc.getBlockZ());
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+ }
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+
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+ public static boolean isEdgeOfChunk(BlockPosition pos) {
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+ final int modX = pos.getX() & 15;
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+ final int modZ = pos.getZ() & 15;
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+ return (modX == 0 || modX == 15 || modZ == 0 || modZ == 15);
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+ }
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+}
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--
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2.8.1
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