Add EntityCollideWithEntityEvent

patches/api/0371-Collision-API.patch

@@ -3,7 +3,68 @@ From: Owen1212055 <[email protected]>
 Date: Wed, 6 Oct 2021 20:10:36 -0400
 Subject: [PATCH] Collision API
 
+Co-authored-by: Tamion <[email protected]>
 
+diff --git a/src/main/java/io/papermc/paper/event/entity/EntityCollideWithEntityEvent.java b/src/main/java/io/papermc/paper/event/entity/EntityCollideWithEntityEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0505e5479526bcfb757e6078d6bbec423498c303
+--- /dev/null
++++ b/src/main/java/io/papermc/paper/event/entity/EntityCollideWithEntityEvent.java
+@@ -0,0 +1,54 @@
++package io.papermc.paper.event.entity;
++
++import org.bukkit.entity.Entity;
++import org.bukkit.event.Cancellable;
++import org.bukkit.event.Event;
++import org.bukkit.event.HandlerList;
++import org.jetbrains.annotations.ApiStatus;
++import org.jetbrains.annotations.NotNull;
++import java.util.Set;
++
++/**
++ * Fired when two entities collide with each other.
++ * If cancelled, the entities won't get pushed away from each other.
++ */
++public class EntityCollideWithEntityEvent extends Event implements Cancellable {
++
++    private static final HandlerList HANDLER_LIST = new HandlerList();
++    private boolean cancelled;
++    private final Set<Entity> entities;
++
++    @ApiStatus.Internal
++    public EntityCollideWithEntityEvent(@NotNull Entity entity1, @NotNull Entity entity2) {
++        entities = Set.of(entity1, entity2);
++    }
++
++    /**
++     * Returns the Entities involved in this event
++     *
++     * @return Entities that are involved in this event
++     */
++    public @NotNull Set<Entity> getEntities() {
++        return entities;
++    }
++
++    @Override
++    public @NotNull HandlerList getHandlers() {
++        return HANDLER_LIST;
++    }
++
++    @NotNull
++    public static HandlerList getHandlerList() {
++        return HANDLER_LIST;
++    }
++
++    @Override
++    public boolean isCancelled() {
++        return cancelled;
++    }
++
++    @Override
++    public void setCancelled(final boolean cancel) {
++        this.cancelled = cancel;
++    }
++}
 diff --git a/src/main/java/org/bukkit/RegionAccessor.java b/src/main/java/org/bukkit/RegionAccessor.java
 index 44ee56a5956cc17194c767a0c1071a2abffe818a..43dd6c59cceba12f27e6b265acc3ad97eea37abd 100644
 --- a/src/main/java/org/bukkit/RegionAccessor.java

patches/server/0831-Collision-API.patch

@@ -3,7 +3,20 @@ From: Owen1212055 <[email protected]>
 Date: Wed, 6 Oct 2021 20:10:44 -0400
 Subject: [PATCH] Collision API
 
+Co-authored-by: Tamion <[email protected]>
 
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 52504f71a34fe8700c68533ff82d98fe23f8edc9..3a9cee33fc7ce310b5d04af3d018495149d59e6e 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
++++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -2098,6 +2098,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+         if (!this.isPassengerOfSameVehicle(entity)) {
+             if (!entity.noPhysics && !this.noPhysics) {
+                 if (this.level.paperConfig().collisions.onlyPlayersCollide && !(entity instanceof ServerPlayer || this instanceof ServerPlayer)) return; // Paper
++                if (!new io.papermc.paper.event.entity.EntityCollideWithEntityEvent(this.getBukkitEntity(), entity.getBukkitEntity()).callEvent()) return; // Paper
+                 double d0 = entity.getX() - this.getX();
+                 double d1 = entity.getZ() - this.getZ();
+                 double d2 = Mth.absMax(d0, d1);
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
 index 9c31a042d2ff82689a4bcc9d90fe08e5f8329985..76d529ad7d1ce543b8f262b3a36f17405cc9da92 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java

patches/server/0867-Fix-EntityCombustEvent-cancellation-cant-fully-preve.patch

@@ -6,10 +6,10 @@ Subject: [PATCH] Fix EntityCombustEvent cancellation cant fully prevent
 
 
 diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
-index 52504f71a34fe8700c68533ff82d98fe23f8edc9..e758f3dce618c7b021ea1828c1b2fc3807455f4a 100644
+index 3a9cee33fc7ce310b5d04af3d018495149d59e6e..1da4d1a59246010be84faee2f8b0d16b75a8686f 100644
 --- a/src/main/java/net/minecraft/world/entity/Entity.java
 +++ b/src/main/java/net/minecraft/world/entity/Entity.java
-@@ -3382,6 +3382,10 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+@@ -3383,6 +3383,10 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
              pluginManager.callEvent(entityCombustEvent);
              if (!entityCombustEvent.isCancelled()) {
                  this.setSecondsOnFire(entityCombustEvent.getDuration(), false);

patches/server/0892-Improve-PortalEvents.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Improve PortalEvents
 
 
 diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
-index e758f3dce618c7b021ea1828c1b2fc3807455f4a..bfbb99e82c00eef9772c605e172645252af6e8ad 100644
+index 1da4d1a59246010be84faee2f8b0d16b75a8686f..737b1427597f01953256201afd387fed7eceeea8 100644
 --- a/src/main/java/net/minecraft/world/entity/Entity.java
 +++ b/src/main/java/net/minecraft/world/entity/Entity.java
-@@ -3769,7 +3769,14 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+@@ -3770,7 +3770,14 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
          Location enter = bukkitEntity.getLocation();
          Location exit = CraftLocation.toBukkit(exitPosition, exitWorldServer.getWorld());
 

patches/server/0968-Folia-scheduler-and-owned-region-API.patch

@@ -1158,7 +1158,7 @@ index 3927558c62cf24af915d37eb8e983339bc0f2aa3..895c4accbcf43baaa8a4d560e8b5c0d4
          this.players.remove(entityplayer);
          this.playersByName.remove(entityplayer.getScoreboardName().toLowerCase(java.util.Locale.ROOT)); // Spigot
 diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
-index 8af2d49fdb46deab17fd801e5ba56eec289b4dd0..23488823fe48f502c1f64ace79030bf0f7e85626 100644
+index a704314aacf5b4e71560b6a4f3a16b6209ebcff4..b46562e65b6ba66f83cd551f0c58f3c0f4b09cce 100644
 --- a/src/main/java/net/minecraft/world/entity/Entity.java
 +++ b/src/main/java/net/minecraft/world/entity/Entity.java
 @@ -247,11 +247,23 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
@@ -1186,15 +1186,15 @@ index 8af2d49fdb46deab17fd801e5ba56eec289b4dd0..23488823fe48f502c1f64ace79030bf0
      @Override
      public CommandSender getBukkitSender(CommandSourceStack wrapper) {
          return this.getBukkitEntity();
-@@ -4739,6 +4751,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+@@ -4740,6 +4752,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
              return;
          }
          // Paper end - rewrite chunk system
 +        final boolean alreadyRemoved = this.removalReason != null;
          if (this.removalReason == null) {
              this.removalReason = reason;
          }
-@@ -4749,12 +4762,28 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+@@ -4750,12 +4763,28 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
 
          if (reason != RemovalReason.UNLOADED_TO_CHUNK) this.getPassengers().forEach(Entity::stopRiding); // Paper - chunk system - don't adjust passenger state when unloading, it's just not safe (and messes with our logic in entity chunk unload)
          this.levelCallback.onRemove(reason);

patches/server/1048-Restore-vanilla-entity-drops-behavior.patch

@@ -39,10 +39,10 @@ index 5fe743567f2e9cf0f9442ddd87453c51af8060e6..8efbbd379244e3ed54d4aba199037cc2
          } // Paper
 
 diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
-index 62bdce9516804942862b33667bc571e3bcac1a70..9abe817ae202edaa2d88cd59ae5c7db0b1c634be 100644
+index 430a3652a551f3a8a8fc1d6cc1ca4330b1240c10..6f6b54edf78b08216f1258e3e7ed3291eb00a28f 100644
 --- a/src/main/java/net/minecraft/world/entity/Entity.java
 +++ b/src/main/java/net/minecraft/world/entity/Entity.java
-@@ -2702,6 +2702,25 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+@@ -2703,6 +2703,25 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
 
      @Nullable
      public ItemEntity spawnAtLocation(ItemStack stack, float yOffset) {
@@ -68,7 +68,7 @@ index 62bdce9516804942862b33667bc571e3bcac1a70..9abe817ae202edaa2d88cd59ae5c7db0
          if (stack.isEmpty()) {
              return null;
          } else if (this.level().isClientSide) {
-@@ -2709,14 +2728,21 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+@@ -2710,14 +2729,21 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
          } else {
              // CraftBukkit start - Capture drops for death event
              if (this instanceof net.minecraft.world.entity.LivingEntity && !((net.minecraft.world.entity.LivingEntity) this).forceDrops) {