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From 2f2a111c6c9d153926439214dd99d853f17bc87a Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Sun, 22 May 2016 20:20:55 -0500
Subject: [PATCH] Optional TNT doesn't move in water
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 067cb233..06acdaaf 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -2,7 +2,6 @@ package com.destroystokyo.paper;
import java.util.List;
-import org.bukkit.Bukkit;
import org.bukkit.configuration.file.YamlConfiguration;
import org.spigotmc.SpigotWorldConfig;
@@ -325,4 +324,14 @@ public class PaperWorldConfig {
);
}
}
+
+ public boolean preventTntFromMovingInWater;
+ private void preventTntFromMovingInWater() {
+ if (PaperConfig.version < 13) {
+ boolean oldVal = getBoolean("enable-old-tnt-cannon-behaviors", false);
+ set("prevent-tnt-from-moving-in-water", oldVal);
+ }
+ preventTntFromMovingInWater = getBoolean("prevent-tnt-from-moving-in-water", false);
+ log("Prevent TNT from moving in water: " + preventTntFromMovingInWater);
+ }
}
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 360ac7b3..7284539f 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1129,6 +1129,11 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
}
public boolean aq() {
+ return this.doWaterMovement();
+ }
+
+ public boolean doWaterMovement() {
+ // Paper end
if (this.bJ() instanceof EntityBoat) {
this.inWater = false;
} else if (this.world.a(this.getBoundingBox().grow(0.0D, -0.4000000059604645D, 0.0D).shrink(0.001D), Material.WATER, this)) {
@@ -2608,6 +2613,11 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
}
public boolean bo() {
+ return this.pushedByWater();
+ }
+
+ public boolean pushedByWater() {
+ // Paper end
return true;
}
diff --git a/src/main/java/net/minecraft/server/EntityTNTPrimed.java b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
index bb0904f8..50811852 100644
--- a/src/main/java/net/minecraft/server/EntityTNTPrimed.java
+++ b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
@@ -147,4 +147,49 @@ public class EntityTNTPrimed extends Entity {
public int getFuseTicks() {
return this.c;
}
+
+ // Paper start - Optional prevent TNT from moving in water
+ @Override
+ public boolean pushedByWater() {
+ return !world.paperConfig.preventTntFromMovingInWater && super.pushedByWater();
+ }
+
+ /**
+ * Author: Jedediah Smith <jedediah@silencegreys.com>
+ */
+ @Override
+ public boolean doWaterMovement() {
+ if (!world.paperConfig.preventTntFromMovingInWater) return super.doWaterMovement();
+
+ // Preserve velocity while calling the super method
+ double oldMotX = this.motX;
+ double oldMotY = this.motY;
+ double oldMotZ = this.motZ;
+
+ super.doWaterMovement();
+
+ this.motX = oldMotX;
+ this.motY = oldMotY;
+ this.motZ = oldMotZ;
+
+ if (this.inWater) {
+ // Send position and velocity updates to nearby players on every tick while the TNT is in water.
+ // This does pretty well at keeping their clients in sync with the server.
+ EntityTrackerEntry ete = ((WorldServer) this.getWorld()).getTracker().trackedEntities.get(this.getId());
+ if (ete != null) {
+ PacketPlayOutEntityVelocity velocityPacket = new PacketPlayOutEntityVelocity(this);
+ PacketPlayOutEntityTeleport positionPacket = new PacketPlayOutEntityTeleport(this);
+
+ ete.trackedPlayers.stream()
+ .filter(viewer -> (viewer.locX - this.locX) * (viewer.locY - this.locY) * (viewer.locZ - this.locZ) < 16 * 16)
+ .forEach(viewer -> {
+ viewer.playerConnection.sendPacket(velocityPacket);
+ viewer.playerConnection.sendPacket(positionPacket);
+ });
+ }
+ }
+
+ return this.inWater;
+ }
+ // Paper end
}
--
2.19.1
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