Paper/patches/server/0307-Mob-Spawner-API-Enhancements.patch
2023-09-21 19:17:21 -07:00

104 lines
5.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Fri, 19 Apr 2019 12:41:13 -0500
Subject: [PATCH] Mob Spawner API Enhancements
== AT ==
public net.minecraft.world.level.BaseSpawner isNearPlayer(Lnet/minecraft/world/level/Level;Lnet/minecraft/core/BlockPos;)Z
public net.minecraft.world.level.BaseSpawner delay(Lnet/minecraft/world/level/Level;Lnet/minecraft/core/BlockPos;)V
public net.minecraft.world.level.BaseSpawner setNextSpawnData(Lnet/minecraft/world/level/Level;Lnet/minecraft/core/BlockPos;Lnet/minecraft/world/level/SpawnData;)V
diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
index a08c2dee792da1a54005f0a65a9eefabc7bc7c60..369298dfd437c1c83801f3d4ba63484ee1b969fe 100644
--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
@@ -233,7 +233,13 @@ public abstract class BaseSpawner {
}
public void load(@Nullable Level world, BlockPos pos, CompoundTag nbt) {
+ // Paper start - use larger int if set
+ if (nbt.contains("Paper.Delay")) {
+ this.spawnDelay = nbt.getInt("Paper.Delay");
+ } else {
this.spawnDelay = nbt.getShort("Delay");
+ }
+ // Paper end
boolean flag = nbt.contains("SpawnData", 10);
if (flag) {
@@ -256,9 +262,15 @@ public abstract class BaseSpawner {
this.spawnPotentials = SimpleWeightedRandomList.single(this.nextSpawnData != null ? this.nextSpawnData : new SpawnData());
}
+ // Paper start - use ints if set
+ if (nbt.contains("Paper.MinSpawnDelay", 99)) {
+ this.minSpawnDelay = nbt.getInt("Paper.MinSpawnDelay");
+ this.maxSpawnDelay = nbt.getInt("Paper.MaxSpawnDelay");
+ this.spawnCount = nbt.getShort("SpawnCount");
+ } else // Paper end
if (nbt.contains("MinSpawnDelay", 99)) {
- this.minSpawnDelay = nbt.getShort("MinSpawnDelay");
- this.maxSpawnDelay = nbt.getShort("MaxSpawnDelay");
+ this.minSpawnDelay = nbt.getInt("MinSpawnDelay"); // Paper - short -> int
+ this.maxSpawnDelay = nbt.getInt("MaxSpawnDelay"); // Paper - short -> int
this.spawnCount = nbt.getShort("SpawnCount");
}
@@ -275,9 +287,20 @@ public abstract class BaseSpawner {
}
public CompoundTag save(CompoundTag nbt) {
- nbt.putShort("Delay", (short) this.spawnDelay);
- nbt.putShort("MinSpawnDelay", (short) this.minSpawnDelay);
- nbt.putShort("MaxSpawnDelay", (short) this.maxSpawnDelay);
+ // Paper start
+ if (spawnDelay > Short.MAX_VALUE) {
+ nbt.putInt("Paper.Delay", this.spawnDelay);
+ }
+ nbt.putShort("Delay", (short) Math.min(Short.MAX_VALUE, this.spawnDelay));
+
+ if (minSpawnDelay > Short.MAX_VALUE || maxSpawnDelay > Short.MAX_VALUE) {
+ nbt.putInt("Paper.MinSpawnDelay", this.minSpawnDelay);
+ nbt.putInt("Paper.MaxSpawnDelay", this.maxSpawnDelay);
+ }
+
+ nbt.putShort("MinSpawnDelay", (short) Math.min(Short.MAX_VALUE, this.minSpawnDelay));
+ nbt.putShort("MaxSpawnDelay", (short) Math.min(Short.MAX_VALUE, this.maxSpawnDelay));
+ // Paper nbt
nbt.putShort("SpawnCount", (short) this.spawnCount);
nbt.putShort("MaxNearbyEntities", (short) this.maxNearbyEntities);
nbt.putShort("RequiredPlayerRange", (short) this.requiredPlayerRange);
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java b/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java
index f733df6d082561bf80a3fcfaaab1731985213324..e2d0937f8609c1f65eff94a1cdae8c80b6347cc3 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftCreatureSpawner.java
@@ -134,4 +134,28 @@ public class CraftCreatureSpawner extends CraftBlockEntityState<SpawnerBlockEnti
public void setSpawnRange(int spawnRange) {
this.getSnapshot().getSpawner().spawnRange = spawnRange;
}
+
+ // Paper start
+ @Override
+ public boolean isActivated() {
+ this.requirePlaced();
+ return this.getSnapshot().getSpawner().isNearPlayer(this.world.getHandle(), this.getPosition());
+ }
+
+ @Override
+ public void resetTimer() {
+ this.requirePlaced();
+ this.getSnapshot().getSpawner().delay(this.world.getHandle(), this.getPosition());
+ }
+
+ @Override
+ public void setSpawnedItem(org.bukkit.inventory.ItemStack itemStack) {
+ Preconditions.checkArgument(itemStack != null && !itemStack.getType().isAir(), "spawners cannot spawn air");
+ net.minecraft.world.item.ItemStack item = org.bukkit.craftbukkit.inventory.CraftItemStack.asNMSCopy(itemStack);
+ net.minecraft.nbt.CompoundTag entity = new net.minecraft.nbt.CompoundTag();
+ entity.putString("id", net.minecraft.core.registries.BuiltInRegistries.ENTITY_TYPE.getKey(net.minecraft.world.entity.EntityType.ITEM).toString());
+ entity.put("Item", item.save(new net.minecraft.nbt.CompoundTag()));
+ this.getSnapshot().getSpawner().setNextSpawnData(this.isPlaced() ? this.world.getHandle() : null, this.getPosition(), new net.minecraft.world.level.SpawnData(entity, java.util.Optional.empty()));
+ }
+ // Paper end
}