From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Byteflux <byte@byteflux.net>
Date: Tue, 1 Mar 2016 14:14:15 -0600
Subject: [PATCH] Drop falling block and tnt entities at the specified height

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

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 e9e8ad33371749f52a88a0ee089540eb26fb0f28..5ed77cc6c8b0459691d8044232d9972e4278964b 100644
--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -159,6 +159,16 @@ public class FallingBlockEntity extends Entity {
             this.applyGravity();
             this.move(MoverType.SELF, this.getDeltaMovement());
             this.applyEffectsFromBlocks();
+            // Paper start - Configurable falling blocks height nerf
+            if (this.level().paperConfig().fixes.fallingBlockHeightNerf.test(v -> this.getY() > v)) {
+                if (this.dropItem && this.level().getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
+                    this.spawnAtLocation(block);
+                }
+
+                this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD);
+                return;
+            }
+            // Paper end - Configurable falling blocks height nerf
             this.handlePortal();
             Level world = this.level();
 
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 91381122b5b63139be880f80dadde4d8cf31a260..3d489fdc14b3e29bab63f330d5edbbc1d354382a 100644
--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
@@ -106,6 +106,12 @@ public class PrimedTnt extends Entity implements TraceableEntity {
         this.applyGravity();
         this.move(MoverType.SELF, this.getDeltaMovement());
         this.applyEffectsFromBlocks();
+        // Paper start - Configurable TNT height nerf
+        if (this.level().paperConfig().fixes.tntEntityHeightNerf.test(v -> this.getY() > v)) {
+            this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD);
+            return;
+        }
+        // Paper end - Configurable TNT height nerf
         this.setDeltaMovement(this.getDeltaMovement().scale(0.98D));
         if (this.onGround()) {
             this.setDeltaMovement(this.getDeltaMovement().multiply(0.7D, -0.5D, 0.7D));
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java b/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java
index ef87b0b4dbf4f08b7ec00eed0eb4df2e3f13d4a7..0652494dc5f3d999116d4380032dea0e7402caec 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java
@@ -52,6 +52,12 @@ public class MinecartTNT extends AbstractMinecart {
     public void tick() {
         super.tick();
         if (this.fuse > 0) {
+            // Paper start - Configurable TNT height nerf
+            if (this.level().paperConfig().fixes.tntEntityHeightNerf.test(v -> this.getY() > v)) {
+                this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD);
+                return;
+            }
+            // Paper end - Configurable TNT height nerf
             --this.fuse;
             this.level().addParticle(ParticleTypes.SMOKE, this.getX(), this.getY() + 0.5D, this.getZ(), 0.0D, 0.0D, 0.0D);
         } else if (this.fuse == 0) {