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-rw-r--r--patches/server/0035-Entity-Origin-API.patch158
1 files changed, 158 insertions, 0 deletions
diff --git a/patches/server/0035-Entity-Origin-API.patch b/patches/server/0035-Entity-Origin-API.patch
new file mode 100644
index 0000000000..c0911d7e0e
--- /dev/null
+++ b/patches/server/0035-Entity-Origin-API.patch
@@ -0,0 +1,158 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Byteflux <[email protected]>
+Date: Tue, 1 Mar 2016 23:45:08 -0600
+Subject: [PATCH] Entity Origin API
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 2f7646e2bcc9622d8579eec25b56615da5a84d06..f5ded21e15ca425d23af90f0e339a961c5600504 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
++++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -2185,6 +2185,15 @@ public class ServerLevel extends Level implements WorldGenLevel {
+
+ entity.updateDynamicGameEventListener(DynamicGameEventListener::add);
+ entity.valid = true; // CraftBukkit
++ // Paper start - Set origin location when the entity is being added to the world
++ if (entity.getOriginVector() == null) {
++ entity.setOrigin(entity.getBukkitEntity().getLocation());
++ }
++ // Default to current world if unknown, gross assumption but entities rarely change world
++ if (entity.getOriginWorld() == null) {
++ entity.setOrigin(entity.getOriginVector().toLocation(getWorld()));
++ }
++ // Paper end
+ }
+
+ public void onTrackingEnd(Entity entity) {
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 70c338f5bf605d2f51a21670634c716177cd6f97..ef7320d69d058ea260e48dd1e0d4fc2d69aec1c2 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -304,7 +304,27 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+ public long activatedTick = Integer.MIN_VALUE;
+ public void inactiveTick() { }
+ // Spigot end
++ // Paper start
++ @javax.annotation.Nullable
++ private org.bukkit.util.Vector origin;
++ @javax.annotation.Nullable
++ private UUID originWorld;
++
++ public void setOrigin(@javax.annotation.Nonnull Location location) {
++ this.origin = location.toVector();
++ this.originWorld = location.getWorld().getUID();
++ }
+
++ @javax.annotation.Nullable
++ public org.bukkit.util.Vector getOriginVector() {
++ return this.origin != null ? this.origin.clone() : null;
++ }
++
++ @javax.annotation.Nullable
++ public UUID getOriginWorld() {
++ return this.originWorld;
++ }
++ // Paper end
+ public float getBukkitYaw() {
+ return this.yRot;
+ }
+@@ -1847,6 +1867,15 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+ this.bukkitEntity.storeBukkitValues(nbt);
+ }
+ // CraftBukkit end
++ // Paper start - Save the entity's origin location
++ if (this.origin != null) {
++ UUID originWorld = this.originWorld != null ? this.originWorld : this.level != null ? this.level.getWorld().getUID() : null;
++ if (originWorld != null) {
++ nbt.putUUID("Paper.OriginWorld", originWorld);
++ }
++ nbt.put("Paper.Origin", this.newDoubleList(origin.getX(), origin.getY(), origin.getZ()));
++ }
++ // Paper end
+ return nbt;
+ } catch (Throwable throwable) {
+ CrashReport crashreport = CrashReport.forThrowable(throwable, "Saving entity NBT");
+@@ -1973,6 +2002,20 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
+ }
+ // CraftBukkit end
+
++ // Paper start - Restore the entity's origin location
++ ListTag originTag = nbt.getList("Paper.Origin", 6);
++ if (!originTag.isEmpty()) {
++ UUID originWorld = null;
++ if (nbt.contains("Paper.OriginWorld")) {
++ originWorld = nbt.getUUID("Paper.OriginWorld");
++ } else if (this.level != null) {
++ originWorld = this.level.getWorld().getUID();
++ }
++ this.originWorld = originWorld;
++ origin = new org.bukkit.util.Vector(originTag.getDouble(0), originTag.getDouble(1), originTag.getDouble(2));
++ }
++ // Paper end
++
+ } catch (Throwable throwable) {
+ CrashReport crashreport = CrashReport.forThrowable(throwable, "Loading entity NBT");
+ CrashReportCategory crashreportsystemdetails = crashreport.addCategory("Entity being loaded");
+diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+index bd357c3e6fcbd82f3c53ecc8dab46aa5d3708bc2..6c4be7da19d0d61f35942558d438587853231aaa 100644
+--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
++++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+@@ -337,6 +337,14 @@ public class FallingBlockEntity extends Entity {
+ this.blockState = Blocks.SAND.defaultBlockState();
+ }
+
++ // Paper start - Try and load origin location from the old NBT tags for backwards compatibility
++ if (nbt.contains("SourceLoc_x")) {
++ int srcX = nbt.getInt("SourceLoc_x");
++ int srcY = nbt.getInt("SourceLoc_y");
++ int srcZ = nbt.getInt("SourceLoc_z");
++ this.setOrigin(new org.bukkit.Location(level.getWorld(), srcX, srcY, srcZ));
++ }
++ // Paper end
+ }
+
+ public void setHurtsEntities(float fallHurtAmount, int fallHurtMax) {
+diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+index 2d4a990da2402a6c24c03e8be7e518e33db99c8f..10f8b5ff56e4c1d8300835e045abdce719a99343 100644
+--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
++++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+@@ -120,6 +120,14 @@ public class PrimedTnt extends Entity {
+ @Override
+ protected void readAdditionalSaveData(CompoundTag nbt) {
+ this.setFuse(nbt.getShort("Fuse"));
++ // Paper start - Try and load origin location from the old NBT tags for backwards compatibility
++ if (nbt.contains("SourceLoc_x")) {
++ int srcX = nbt.getInt("SourceLoc_x");
++ int srcY = nbt.getInt("SourceLoc_y");
++ int srcZ = nbt.getInt("SourceLoc_z");
++ this.setOrigin(new org.bukkit.Location(level.getWorld(), srcX, srcY, srcZ));
++ }
++ // Paper end
+ }
+
+ @Nullable
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+index 7c9dcf62f85bb3ddffb4eadb3961d7b356c503f8..fba18e3c6903d4ed8233b4d32ed07bf08311ca27 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+@@ -1198,5 +1198,20 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
+
+ return ret;
+ }
++
++ @Override
++ public Location getOrigin() {
++ Vector originVector = this.getHandle().getOriginVector();
++ if (originVector == null) {
++ return null;
++ }
++ World world = this.getWorld();
++ if (this.getHandle().getOriginWorld() != null) {
++ world = org.bukkit.Bukkit.getWorld(this.getHandle().getOriginWorld());
++ }
++
++ //noinspection ConstantConditions
++ return originVector.toLocation(world);
++ }
+ // Paper end
+ }