[1.20.5] Refactor tick events into distinct subclasses

patches/net/minecraft/client/Minecraft.java.patch

@@ -209,11 +209,11 @@
          this.profiler.pop();
          if (!this.noRender) {
 +            this.realPartialTick = this.pause ? this.pausePartialTick : this.timer.partialTick; // Cache this since pause is volatile
-+            net.neoforged.neoforge.event.EventHooks.onRenderTickStart(this.realPartialTick);
++            net.neoforged.neoforge.client.ClientHooks.fireRenderFramePre(this.realPartialTick);
              this.profiler.popPush("gameRenderer");
              this.gameRenderer.render(this.pause ? this.pausePartialTick : this.timer.partialTick, i, p_91384_);
              this.profiler.pop();
-+            net.neoforged.neoforge.event.EventHooks.onRenderTickEnd(this.realPartialTick);
++            net.neoforged.neoforge.client.ClientHooks.fireRenderFramePost(this.realPartialTick);
          }
 
          if (this.fpsPieResults != null) {
@@ -326,28 +326,28 @@
                      if (!itemstack.isEmpty()) {
                          InteractionResult interactionresult2 = this.gameMode.useItem(this.player, interactionhand);
                          if (interactionresult2.consumesAction()) {
-@@ -1808,6 +_,8 @@
-             this.rightClickDelay--;
-         }
+@@ -1800,6 +_,8 @@
 
-+        net.neoforged.neoforge.event.EventHooks.onPreClientTick();
+     public void tick() {
+         this.clientTickCount++;
++        net.neoforged.neoforge.client.ClientHooks.fireClientTickPre();
 +
-         this.profiler.push("gui");
-         this.chatListener.tick();
-         this.gui.tick(this.pause);
+         if (this.level != null && !this.pause) {
+             this.level.tickRateManager().tick();
+         }
 @@ -1892,6 +_,7 @@
 
                  this.tutorial.tick();
 
-+                net.neoforged.neoforge.event.EventHooks.onPreLevelTick(this.level, () -> true);
++                net.neoforged.neoforge.event.EventHooks.fireLevelTickPre(this.level, () -> true);
                  try {
                      this.level.tick(() -> true);
                  } catch (Throwable throwable) {
 @@ -1905,6 +_,7 @@
 
                      throw new ReportedException(crashreport);
                  }
-+                net.neoforged.neoforge.event.EventHooks.onPostLevelTick(this.level, () -> true);
++                net.neoforged.neoforge.event.EventHooks.fireLevelTickPost(this.level, () -> true);
              }
 
              this.profiler.popPush("animateTick");
@@ -356,7 +356,7 @@
          this.keyboardHandler.tick();
          this.profiler.pop();
 +
-+        net.neoforged.neoforge.event.EventHooks.onPostClientTick();
++        net.neoforged.neoforge.client.ClientHooks.fireClientTickPost();
      }
 
      private boolean isMultiplayerServer() {

patches/net/minecraft/client/multiplayer/ClientLevel.java.patch

@@ -25,14 +25,18 @@
      }
 
      public void queueLightUpdate(Runnable p_194172_) {
-@@ -282,6 +_,7 @@
+@@ -282,7 +_,10 @@
          p_104640_.setOldPosAndRot();
          p_104640_.tickCount++;
          this.getProfiler().push(() -> BuiltInRegistries.ENTITY_TYPE.getKey(p_104640_.getType()).toString());
-+        if (p_104640_.canUpdate())
-         p_104640_.tick();
+-        p_104640_.tick();
++        // Neo: Permit cancellation of Entity#tick via EntityTickEvent.Pre
++        if (!net.neoforged.neoforge.event.EventHooks.fireEntityTickPre(p_104640_).isCanceled()) {
++            p_104640_.tick();
++        }
          this.getProfiler().pop();
 
+         for (Entity entity : p_104640_.getPassengers()) {
 @@ -330,8 +_,10 @@
      }
 

patches/net/minecraft/server/MinecraftServer.java.patch

@@ -86,12 +86,11 @@
                  this.onServerExit();
              }
          }
-@@ -876,12 +_,14 @@
-
+@@ -877,11 +_,13 @@
      public void tickServer(BooleanSupplier p_129871_) {
          long i = Util.getNanos();
-+        net.neoforged.neoforge.event.EventHooks.onPreServerTick(p_129871_, this);
          this.tickCount++;
++        net.neoforged.neoforge.event.EventHooks.fireServerTickPre(p_129871_, this);
          this.tickRateManager.tick();
          this.tickChildren(p_129871_);
          if (i - this.lastServerStatus >= STATUS_EXPIRE_TIME_NANOS) {
@@ -105,7 +104,7 @@
          this.smoothedTickTimeMillis = this.smoothedTickTimeMillis * 0.8F + (float)j / (float)TimeUtil.NANOSECONDS_PER_MILLISECOND * 0.19999999F;
          this.logTickMethodTime(i);
          this.profiler.pop();
-+        net.neoforged.neoforge.event.EventHooks.onPostServerTick(p_129871_, this);
++        net.neoforged.neoforge.event.EventHooks.fireServerTickPost(p_129871_, this);
      }
 
      private void logTickMethodTime(long p_321837_) {
@@ -150,15 +149,15 @@
              }
 
              this.profiler.push("tick");
-+            net.neoforged.neoforge.event.EventHooks.onPreLevelTick(serverlevel, p_129954_);
++            net.neoforged.neoforge.event.EventHooks.fireLevelTickPre(serverlevel, p_129954_);
 
              try {
                  serverlevel.tick(p_129954_);
 @@ -989,16 +_,18 @@
                  serverlevel.fillReportDetails(crashreport);
                  throw new ReportedException(crashreport);
              }
-+            net.neoforged.neoforge.event.EventHooks.onPostLevelTick(serverlevel, p_129954_);
++            net.neoforged.neoforge.event.EventHooks.fireLevelTickPost(serverlevel, p_129954_);
 
              this.profiler.pop();
              this.profiler.pop();

patches/net/minecraft/server/level/ServerLevel.java.patch

@@ -79,14 +79,18 @@
          }
      }
 
-@@ -774,6 +_,7 @@
-             ProfilerFiller profilerfiller = this.getProfiler();
-             profilerfiller.push(() -> BuiltInRegistries.ENTITY_TYPE.getKey(p_8664_.getType()).toString());
-             profilerfiller.incrementCounter("tickPassenger");
-+                if (p_8664_.canUpdate())
-             p_8664_.rideTick();
-             profilerfiller.pop();
+@@ -757,7 +_,10 @@
+         p_8648_.tickCount++;
+         this.getProfiler().push(() -> BuiltInRegistries.ENTITY_TYPE.getKey(p_8648_.getType()).toString());
+         profilerfiller.incrementCounter("tickNonPassenger");
+-        p_8648_.tick();
++        // Neo: Permit cancellation of Entity#tick via EntityTickEvent.Pre
++        if (!net.neoforged.neoforge.event.EventHooks.fireEntityTickPre(p_8648_).isCanceled()) {
++            p_8648_.tick();
++        }
+         this.getProfiler().pop();
 
+         for (Entity entity : p_8648_.getPassengers()) {
 @@ -806,6 +_,7 @@
              } else {
                  this.entityManager.autoSave();

patches/net/minecraft/world/entity/Entity.java.patch

@@ -198,15 +198,6 @@
      }
 
      public void moveRelative(float p_19921_, Vec3 p_19922_) {
-@@ -1645,6 +_,8 @@
-                 p_20241_.putBoolean("HasVisualFire", this.hasVisualFire);
-             }
-
-+            p_20241_.putBoolean("CanUpdate", canUpdate);
-+
-             if (!this.tags.isEmpty()) {
-                 ListTag listtag = new ListTag();
-
 @@ -1655,6 +_,10 @@
                  p_20241_.put("Tags", listtag);
              }
@@ -218,12 +209,11 @@
              this.addAdditionalSaveData(p_20241_);
              if (this.isVehicle()) {
                  ListTag listtag1 = new ListTag();
-@@ -1735,6 +_,9 @@
+@@ -1735,6 +_,8 @@
                  this.setGlowingTag(p_20259_.getBoolean("Glowing"));
                  this.setTicksFrozen(p_20259_.getInt("TicksFrozen"));
                  this.hasVisualFire = p_20259_.getBoolean("HasVisualFire");
 +                if (p_20259_.contains("NeoForgeData", 10)) persistentData = p_20259_.getCompound("NeoForgeData");
-+                if (p_20259_.contains("CanUpdate", 99)) this.canUpdate(p_20259_.getBoolean("CanUpdate"));
 +                if (p_20259_.contains(ATTACHMENTS_NBT_KEY, net.minecraft.nbt.Tag.TAG_COMPOUND)) deserializeAttachments(registryAccess(), p_20259_.getCompound(ATTACHMENTS_NBT_KEY));
                  if (p_20259_.contains("Tags", 9)) {
                      this.tags.clear();
@@ -237,14 +227,18 @@
              this.level().addFreshEntity(itementity);
              return itementity;
          }
-@@ -1865,6 +_,7 @@
+@@ -1865,7 +_,10 @@
 
      public void rideTick() {
          this.setDeltaMovement(Vec3.ZERO);
-+        if (canUpdate())
-         this.tick();
+-        this.tick();
++        // Neo: Permit cancellation of Entity#tick via EntityTickEvent.Pre
++        if (!net.neoforged.neoforge.event.EventHooks.fireEntityTickPre(this).isCanceled()) {
++            this.tick();
++        }
          if (this.isPassenger()) {
              this.getVehicle().positionRider(this);
+         }
 @@ -1923,6 +_,7 @@
                  }
              }
@@ -495,22 +489,13 @@
      }
 
      public void checkDespawn() {
-@@ -3424,6 +_,126 @@
+@@ -3424,6 +_,117 @@
      public boolean mayInteract(Level p_146843_, BlockPos p_146844_) {
          return true;
      }
 +
 +    /* ================================== Forge Start =====================================*/
 +
-+    private boolean canUpdate = true;
-+    @Override
-+    public void canUpdate(boolean value) {
-+        this.canUpdate = value;
-+    }
-+    @Override
-+    public boolean canUpdate() {
-+        return this.canUpdate;
-+    }
 +    @Nullable
 +    private java.util.Collection<ItemEntity> captureDrops = null;
 +    @Override

patches/net/minecraft/world/entity/LivingEntity.java.patch

@@ -430,14 +430,6 @@
                  d2 = 0.0;
              }
 
-@@ -2334,6 +_,7 @@
-
-     @Override
-     public void tick() {
-+        if (net.neoforged.neoforge.common.CommonHooks.onLivingTick(this)) return;
-         super.tick();
-         this.updatingUsingItem();
-         this.updateSwimAmount();
 @@ -2483,6 +_,7 @@
              };
              ItemStack itemstack1 = this.getItemBySlot(equipmentslot);

patches/net/minecraft/world/entity/player/Player.java.patch

@@ -35,7 +35,7 @@
 
      @Override
      public void tick() {
-+        net.neoforged.neoforge.event.EventHooks.onPlayerPreTick(this);
++        net.neoforged.neoforge.event.EventHooks.firePlayerTickPre(this);
          this.noPhysics = this.isSpectator();
          if (this.isSpectator()) {
              this.setOnGround(false);
@@ -52,7 +52,7 @@
          this.turtleHelmetTick();
          this.cooldowns.tick();
          this.updatePlayerPose();
-+        net.neoforged.neoforge.event.EventHooks.onPlayerPostTick(this);
++        net.neoforged.neoforge.event.EventHooks.firePlayerTickPost(this);
      }
 
      @Override

src/main/java/net/neoforged/neoforge/capabilities/CapabilityHooks.java

@@ -20,8 +20,8 @@
 import net.minecraft.world.level.block.entity.BlockEntityType;
 import net.neoforged.fml.ModLoader;
 import net.neoforged.neoforge.common.NeoForgeMod;
-import net.neoforged.neoforge.event.TickEvent;
 import net.neoforged.neoforge.event.level.ChunkEvent;
+import net.neoforged.neoforge.event.tick.LevelTickEvent;
 import net.neoforged.neoforge.fluids.capability.wrappers.FluidBucketWrapper;
 import net.neoforged.neoforge.items.VanillaHopperItemHandler;
 import net.neoforged.neoforge.items.wrapper.CombinedInvWrapper;
@@ -152,20 +152,20 @@ else if (entity instanceof LivingEntity livingEntity)
     }
 
     public static void invalidateCapsOnChunkLoad(ChunkEvent.Load event) {
-        if (!event.getLevel().isClientSide()) {
-            ((ServerLevel) event.getLevel()).invalidateCapabilities(event.getChunk().getPos());
+        if (event.getLevel() instanceof ServerLevel sl) {
+            sl.invalidateCapabilities(event.getChunk().getPos());
         }
     }
 
     public static void invalidateCapsOnChunkUnload(ChunkEvent.Unload event) {
-        if (!event.getLevel().isClientSide()) {
-            ((ServerLevel) event.getLevel()).invalidateCapabilities(event.getChunk().getPos());
+        if (event.getLevel() instanceof ServerLevel sl) {
+            sl.invalidateCapabilities(event.getChunk().getPos());
         }
     }
 
-    public static void cleanCapabilityListenerReferencesOnTick(TickEvent.LevelTickEvent event) {
-        if (event.phase == TickEvent.Phase.END && event.side.isServer()) {
-            ((ServerLevel) event.level).cleanCapabilityListenerReferences();
+    public static void cleanCapabilityListenerReferencesOnTick(LevelTickEvent.Post event) {
+        if (event.getLevel() instanceof ServerLevel sl) {
+            sl.cleanCapabilityListenerReferences();
         }
     }
 }

src/main/java/net/neoforged/neoforge/client/ClientHooks.java

@@ -134,6 +134,7 @@
 import net.neoforged.neoforge.client.event.ClientPauseUpdatedEvent;
 import net.neoforged.neoforge.client.event.ClientPlayerChangeGameTypeEvent;
 import net.neoforged.neoforge.client.event.ClientPlayerNetworkEvent;
+import net.neoforged.neoforge.client.event.ClientTickEvent;
 import net.neoforged.neoforge.client.event.ComputeFovModifierEvent;
 import net.neoforged.neoforge.client.event.CustomizeGuiOverlayEvent;
 import net.neoforged.neoforge.client.event.EntityRenderersEvent;
@@ -149,6 +150,7 @@
 import net.neoforged.neoforge.client.event.RegisterSpriteSourceTypesEvent;
 import net.neoforged.neoforge.client.event.RenderArmEvent;
 import net.neoforged.neoforge.client.event.RenderBlockScreenEffectEvent;
+import net.neoforged.neoforge.client.event.RenderFrameEvent;
 import net.neoforged.neoforge.client.event.RenderHandEvent;
 import net.neoforged.neoforge.client.event.RenderHighlightEvent;
 import net.neoforged.neoforge.client.event.RenderLevelStageEvent;
@@ -1003,4 +1005,40 @@ public static void initClientHooks(Minecraft mc, ReloadableResourceManager resou
         ItemDecoratorHandler.init();
         PresetEditorManager.init();
     }
+
+    /**
+     * Fires {@link RenderFrameEvent.Pre}. Called just before {@link GameRenderer#render(float, long, boolean)} in {@link Minecraft#runTick(boolean)}.
+     * <p>
+     * Fired before the profiler section for "gameRenderer" is started.
+     * 
+     * @param partialTick The current partial tick
+     */
+    public static void fireRenderFramePre(float partialTick) {
+        NeoForge.EVENT_BUS.post(new RenderFrameEvent.Pre(partialTick));
+    }
+
+    /**
+     * Fires {@link RenderFrameEvent.Post}. Called just after {@link GameRenderer#render(float, long, boolean)} in {@link Minecraft#runTick(boolean)}.
+     * <p>
+     * Fired after the profiler section for "gameRenderer" is ended.
+     * 
+     * @param partialTick The current partial tick
+     */
+    public static void fireRenderFramePost(float partialRick) {
+        NeoForge.EVENT_BUS.post(new RenderFrameEvent.Post(partialRick));
+    }
+
+    /**
+     * Fires {@link ClientTickEvent.Pre}. Called from the head of {@link Minecraft#tick()}.
+     */
+    public static void fireClientTickPre() {
+        NeoForge.EVENT_BUS.post(new ClientTickEvent.Pre());
+    }
+
+    /**
+     * Fires {@link ClientTickEvent.Post}. Called from the tail of {@link Minecraft#tick()}.
+     */
+    public static void fireClientTickPost() {
+        NeoForge.EVENT_BUS.post(new ClientTickEvent.Post());
+    }
 }

src/main/java/net/neoforged/neoforge/client/event/ClientTickEvent.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) NeoForged and contributors
+ * SPDX-License-Identifier: LGPL-2.1-only
+ */
+
+package net.neoforged.neoforge.client.event;
+
+import net.neoforged.bus.api.Event;
+
+/**
+ * Base class of the two client tick events.
+ * <p>
+ * For the event that fires once per frame (instead of per tick), see {@link RenderFrameEvent}.
+ * 
+ * @see ClientTickEvent.Pre
+ * @see ClientTickEvent.Post
+ */
+public abstract class ClientTickEvent extends Event {
+    /**
+     * {@link ClientTickEvent.Pre} is fired once per client tick, before the client performs work for the current tick.
+     * <p>
+     * This event only fires on the physical client.
+     */
+    public static class Pre extends ClientTickEvent {
+        public Pre() {}
+    }
+
+    /**
+     * {@link ClientTickEvent.Post} is fired once per client tick, after the client performs work for the current tick.
+     * <p>
+     * This event only fires on the physical client.
+     */
+    public static class Post extends ClientTickEvent {
+        public Post() {}
+    }
+}