PaperMC/patches/server-remapped/0506-Limit-lightning-strike-effect-distance.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Trigary <trigary0@gmail.com>
Date: Fri, 14 Sep 2018 17:42:08 +0200
Subject: [PATCH] Limit lightning strike effect distance


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 1655bca0502e7b871de4addaa163536d86547a02..978062774c1db286bfb9b0ffdef19d880b1f249b 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -646,4 +646,26 @@ public class PaperWorldConfig {
             delayChunkUnloadsBy *= 20;
         }
     }
+
+    public double sqrMaxThunderDistance;
+    public double sqrMaxLightningImpactSoundDistance;
+    public double maxLightningFlashDistance;
+    private void lightningStrikeDistanceLimit() {
+        sqrMaxThunderDistance = getInt("lightning-strike-distance-limit.sound", -1);
+        if (sqrMaxThunderDistance > 0) {
+            sqrMaxThunderDistance *= sqrMaxThunderDistance;
+        }
+
+        sqrMaxLightningImpactSoundDistance = getInt("lightning-strike-distance-limit.impact-sound", -1);
+        if (sqrMaxLightningImpactSoundDistance < 0) {
+            sqrMaxLightningImpactSoundDistance = 32 * 32; //Vanilla value
+        } else {
+            sqrMaxLightningImpactSoundDistance *= sqrMaxLightningImpactSoundDistance;
+        }
+
+        maxLightningFlashDistance = getInt("lightning-strike-distance-limit.flash", -1);
+        if (maxLightningFlashDistance < 0) {
+            maxLightningFlashDistance = 512; // Vanilla value
+        }
+    }
 }
diff --git a/src/main/java/net/minecraft/world/entity/LightningBolt.java b/src/main/java/net/minecraft/world/entity/LightningBolt.java
index e030e7f3d8bd9fe6578df0b560a237d494ec8a01..4b0dbeded2b8a475d32f518957909d3495a4b6fc 100644
--- a/src/main/java/net/minecraft/world/entity/LightningBolt.java
+++ b/src/main/java/net/minecraft/world/entity/LightningBolt.java
@@ -15,7 +15,6 @@ import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.sounds.SoundEvents;
 import net.minecraft.sounds.SoundSource;
 import net.minecraft.world.Difficulty;
-import net.minecraft.world.entity.player.Player;
 import net.minecraft.world.level.BlockGetter;
 import net.minecraft.world.level.GameRules;
 import net.minecraft.world.level.Level;
@@ -74,6 +73,17 @@ public class LightningBolt extends Entity {
                 double deltaX = this.getX() - player.getX();
                 double deltaZ = this.getZ() - player.getZ();
                 double distanceSquared = deltaX * deltaX + deltaZ * deltaZ;
+                // Paper start - Limit lightning strike effect distance
+                if (distanceSquared <= this.level.paperConfig.sqrMaxLightningImpactSoundDistance) {
+                    player.connection.send(new ClientboundSoundPacket(SoundEvents.LIGHTNING_BOLT_IMPACT,
+                        SoundSource.WEATHER, this.getX(), this.getY(), this.getZ(), 2.0f, 0.5F + this.random.nextFloat() * 0.2F));
+                }
+
+                if (level.paperConfig.sqrMaxThunderDistance != -1 && distanceSquared >= level.paperConfig.sqrMaxThunderDistance) {
+                    continue;
+                }
+
+                // Paper end
                 if (distanceSquared > viewDistance * viewDistance) {
                     double deltaLength = Math.sqrt(distanceSquared);
                     double relativeX = player.getX() + (deltaX / deltaLength) * viewDistance;
@@ -84,7 +94,7 @@ public class LightningBolt extends Entity {
                 }
             }
             // CraftBukkit end
-            this.level.playSound((Player) null, this.getX(), this.getY(), this.getZ(), SoundEvents.LIGHTNING_BOLT_IMPACT, SoundSource.WEATHER, 2.0F, 0.5F + this.random.nextFloat() * 0.2F);
+//            this.world.playSound((EntityHuman) null, this.locX(), this.locY(), this.locZ(), SoundEffects.ENTITY_LIGHTNING_BOLT_IMPACT, SoundCategory.WEATHER, 2.0F, 0.5F + this.random.nextFloat() * 0.2F); // Paper - Limit lightning strike effect distance (the packet is now sent from inside the loop)
         }
 
         --this.life;