Paper/patches/api/0138-Allow-Blocks-to-be-accessed-via-a-long-key.patch
Nassim Jahnke 928bcc8d3a
Updated Upstream (Bukkit/CraftBukkit) (#8430)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
09943450 Update SnakeYAML version
5515734f SPIGOT-7162: Incorrect description for Entity#getVehicle javadoc
6f82b381 PR-788: Add getHand() to all relevant events

CraftBukkit Changes:
aaf484f6f SPIGOT-7163: CraftMerchantRecipe doesn't copy demand and specialPrice from BukkitMerchantRecipe
5329dd6fd PR-1107: Add getHand() to all relevant events
93061706e SPIGOT-7045: Ocelots never spawn with babies with spawn reason OCELOT_BABY
2022-10-02 09:56:36 +02:00

184 lines
6.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Tue, 14 Aug 2018 21:42:10 -0700
Subject: [PATCH] Allow Blocks to be accessed via a long key
The key can be retrieved via methods Location#toBlockKey() and
Block#getBlockKey()
World provides lookup for blocks by long key via method World#getBlockAtKey(long)
The formatting for the key is as follows:
10 bit y|27 bit z|27 bit x
The y value is considered unsigned while z and x are considered two's complement
Y range: [0, 1023]
X, Z range: [-67 108 864, 67 108 863]
diff --git a/src/main/java/org/bukkit/Location.java b/src/main/java/org/bukkit/Location.java
index 36ed248f0716f2cc465c08ab851b7d83d4c7c0a7..5c5e05673e0912f4dbd6c728f4c3b7fcdae8f0e8 100644
--- a/src/main/java/org/bukkit/Location.java
+++ b/src/main/java/org/bukkit/Location.java
@@ -15,7 +15,6 @@ import org.jetbrains.annotations.Nullable;
// Paper start
import java.util.Collection;
-import java.util.Collections;
import java.util.function.Predicate;
import org.bukkit.entity.Entity;
import org.bukkit.entity.LivingEntity;
@@ -605,6 +604,19 @@ public class Location implements Cloneable, ConfigurationSerializable {
blockLoc.setZ(getBlockZ());
return blockLoc;
}
+
+ // Paper Start
+ /**
+ * @return The block key for this location's block location.
+ * @see Block#getBlockKey(int, int, int)
+ * @deprecated only encodes y block ranges from -512 to 511 and represents an already changed implementation detail
+ */
+ @Deprecated
+ public long toBlockKey() {
+ return Block.getBlockKey(getBlockX(), getBlockY(), getBlockZ());
+ }
+ // Paper End
+
/**
* @return A new location where X/Y/Z are the center of the block
*/
diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index 8c71be9c39ec6aae07b088a63e71cc2ae44b0412..25e38f0f4fe36193dcc968ef7619bc8c0e705fb2 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -95,6 +95,40 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
@NotNull
public Block getBlockAt(@NotNull Location location);
+ // Paper start
+ /**
+ * Gets the {@link Block} at the given block key
+ *
+ * @param key The block key. See {@link Block#getBlockKey()}
+ * @return Block at the key
+ * @see Block#getBlockKey(int, int, int)
+ * @deprecated only encodes y block ranges from -512 to 511 and represents an already changed implementation detail
+ */
+ @NotNull
+ @Deprecated
+ public default Block getBlockAtKey(long key) {
+ int x = Block.getBlockKeyX(key);
+ int y = Block.getBlockKeyY(key);
+ int z = Block.getBlockKeyZ(key);
+ return getBlockAt(x, y, z);
+ }
+
+ /**
+ * Gets the {@link Location} at the given block key
+ *
+ * @param key The block key. See {@link Location#toBlockKey()}
+ * @return Location at the key
+ * @see Block#getBlockKey(int, int, int)
+ */
+ @NotNull
+ public default Location getLocationAtKey(long key) {
+ int x = Block.getBlockKeyX(key);
+ int y = Block.getBlockKeyY(key);
+ int z = Block.getBlockKeyZ(key);
+ return new Location(this, x, y, z);
+ }
+ // Paper end
+
/**
* Gets the highest non-empty (impassable) coordinate at the given
* coordinates.
diff --git a/src/main/java/org/bukkit/block/Block.java b/src/main/java/org/bukkit/block/Block.java
index d29bdc125dba0128d93d57e8d9393b970e6c00a9..b101f5264bdde8bd14913d5161c1047020830f8d 100644
--- a/src/main/java/org/bukkit/block/Block.java
+++ b/src/main/java/org/bukkit/block/Block.java
@@ -155,6 +155,82 @@ public interface Block extends Metadatable {
*/
int getZ();
+ // Paper Start
+ /**
+ * Returns this block's coordinates packed into a long value.
+ * Computed via: {@code Block.getBlockKey(this.getX(), this.getY(), this.getZ())}
+ * @see Block#getBlockKey(int, int, int)
+ * @return This block's x, y, and z coordinates packed into a long value
+ * @deprecated see {@link #getBlockKey(int, int, int)}
+ */
+ @Deprecated
+ public default long getBlockKey() {
+ return Block.getBlockKey(this.getX(), this.getY(), this.getZ());
+ }
+
+ /**
+ * Returns the specified block coordinates packed into a long value
+ * <p>
+ * The return value can be computed as follows:
+ * <br>
+ * {@code long value = ((long)x & 0x7FFFFFF) | (((long)z & 0x7FFFFFF) << 27) | ((long)y << 54);}
+ * </p>
+ *
+ * <p>
+ * And may be unpacked as follows:
+ * <br>
+ * {@code int x = (int) ((packed << 37) >> 37);}
+ * <br>
+ * {@code int y = (int) (packed >> 54);}
+ * <br>
+ * {@code int z = (int) ((packed << 10) >> 37);}
+ * </p>
+ *
+ * @return This block's x, y, and z coordinates packed into a long value
+ * @deprecated only encodes y block ranges from -512 to 511 and represents an already changed implementation detail
+ */
+ @Deprecated
+ public static long getBlockKey(int x, int y, int z) {
+ return ((long)x & 0x7FFFFFF) | (((long)z & 0x7FFFFFF) << 27) | ((long)y << 54);
+ }
+
+ /**
+ * Returns the x component from the packed value.
+ * @param packed The packed value, as computed by {@link Block#getBlockKey(int, int, int)}
+ * @see Block#getBlockKey(int, int, int)
+ * @return The x component from the packed value.
+ * @deprecated see {@link #getBlockKey(int, int, int)}
+ */
+ @Deprecated
+ public static int getBlockKeyX(long packed) {
+ return (int) ((packed << 37) >> 37);
+ }
+
+ /**
+ * Returns the y component from the packed value.
+ * @param packed The packed value, as computed by {@link Block#getBlockKey(int, int, int)}
+ * @see Block#getBlockKey(int, int, int)
+ * @return The y component from the packed value.
+ * @deprecated see {@link #getBlockKey(int, int, int)}
+ */
+ @Deprecated
+ public static int getBlockKeyY(long packed) {
+ return (int) (packed >> 54);
+ }
+
+ /**
+ * Returns the z component from the packed value.
+ * @param packed The packed value, as computed by {@link Block#getBlockKey(int, int, int)}
+ * @see Block#getBlockKey(int, int, int)
+ * @return The z component from the packed value.
+ * @deprecated see {@link #getBlockKey(int, int, int)}
+ */
+ @Deprecated
+ public static int getBlockKeyZ(long packed) {
+ return (int) ((packed << 10) >> 37);
+ }
+ // Paper End
+
/**
* Gets the Location of the block
*