From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Byteflux 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 74571a05f8d69e068c615179782def0902b26a09..54416a9327ecb02627537306678122ae77da1239 100644 --- a/src/main/java/net/minecraft/server/level/ServerLevel.java +++ b/src/main/java/net/minecraft/server/level/ServerLevel.java @@ -2023,6 +2023,15 @@ public class ServerLevel extends Level implements WorldGenLevel { } 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 8a4f4582a6bd69016a36d611f9c4ac2262f7f3ec..a4cd7088113b60fd10e79359e5749fd15dacebe8 100644 --- a/src/main/java/net/minecraft/world/entity/Entity.java +++ b/src/main/java/net/minecraft/world/entity/Entity.java @@ -300,7 +300,27 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i 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; } @@ -1822,6 +1842,15 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i 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"); @@ -1952,6 +1981,20 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, i } // 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 de98cbe9e863a19f71783980417fb32646102c9e..16b029f08d5c9dfd3bc4ad304ab9d339ad20b232 100644 --- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java +++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java @@ -330,6 +330,14 @@ 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 1f61dcc3d6f33f69fbebaaaee0554403c3e13adf..7135e22a2ee274eaef52804d60f15002176ff1db 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 4b7ed15279bbdd116d993f190094f80c888aed69..fdbcf4989f72e1604a2841f565adfeebf8d45622 100644 --- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java +++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java @@ -1154,4 +1154,21 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity { return this.spigot; } // Spigot end + + // Paper start + @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 }