Adds support for vanilla negative explosions (#12705)

Fixes #10460

paper-server/patches/features/0016-Moonrise-optimisation-patches.patch

@@ -30766,7 +30766,7 @@ index c59f2c0634e3ebb11b8f6bc09020f951cb602f9b..0842fd6488c8b27d98c4344e1244996b
      ChunkAccess getChunk(int x, int z, ChunkStatus chunkStatus, boolean requireChunk);
  
 diff --git a/net/minecraft/world/level/ServerExplosion.java b/net/minecraft/world/level/ServerExplosion.java
-index 8afaded394fcbf5d7ad4c51ea49642ce93cd5198..e5ccfb8cbfafed7bb0a1d888b5bc98a923e46e59 100644
+index 677780bf473f56a4083b984e1eb75b74f7716540..07e4025ca6c9c31905db2e6921138a0ded479dde 100644
 --- a/net/minecraft/world/level/ServerExplosion.java
 +++ b/net/minecraft/world/level/ServerExplosion.java
 @@ -60,6 +60,249 @@ public class ServerExplosion implements Explosion {
@@ -31019,7 +31019,7 @@ index 8afaded394fcbf5d7ad4c51ea49642ce93cd5198..e5ccfb8cbfafed7bb0a1d888b5bc98a9
  
      public ServerExplosion(
          ServerLevel level,
-@@ -131,63 +374,102 @@ public class ServerExplosion implements Explosion {
+@@ -134,63 +377,102 @@ public class ServerExplosion implements Explosion {
      }
  
      private List<BlockPos> calculateExplodedPositions() {
@@ -31169,10 +31169,10 @@ index 8afaded394fcbf5d7ad4c51ea49642ce93cd5198..e5ccfb8cbfafed7bb0a1d888b5bc98a9
      }
  
      private void hurtEntities() {
-@@ -360,6 +642,14 @@ public class ServerExplosion implements Explosion {
-             return;
-         }
-         // CraftBukkit end
+@@ -358,6 +640,14 @@ public class ServerExplosion implements Explosion {
+     }
+ 
+     public void explode() {
 +        // Paper start - collision optimisations
 +        this.blockCache = new it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap<>();
 +        this.chunkPosCache = new long[CHUNK_CACHE_WIDTH * CHUNK_CACHE_WIDTH];
@@ -31184,7 +31184,7 @@ index 8afaded394fcbf5d7ad4c51ea49642ce93cd5198..e5ccfb8cbfafed7bb0a1d888b5bc98a9
          this.level.gameEvent(this.source, GameEvent.EXPLODE, this.center);
          List<BlockPos> list = this.calculateExplodedPositions();
          this.hurtEntities();
-@@ -373,6 +663,13 @@ public class ServerExplosion implements Explosion {
+@@ -371,6 +661,13 @@ public class ServerExplosion implements Explosion {
          if (this.fire) {
              this.createFire(list);
          }
@@ -31198,7 +31198,7 @@ index 8afaded394fcbf5d7ad4c51ea49642ce93cd5198..e5ccfb8cbfafed7bb0a1d888b5bc98a9
      }
  
      private static void addOrAppendStack(List<ServerExplosion.StackCollector> stackCollectors, ItemStack stack, BlockPos pos) {
-@@ -461,12 +758,12 @@ public class ServerExplosion implements Explosion {
+@@ -459,12 +756,12 @@ public class ServerExplosion implements Explosion {
      // Paper start - Optimize explosions
      private float getBlockDensity(Vec3 vec3d, Entity entity) {
          if (!this.level.paperConfig().environment.optimizeExplosions) {