From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: granny <granny@purpurmc.org>
Date: Thu, 14 Oct 2021 02:05:52 -0700
Subject: [PATCH] options to extinguish fire blocks with snowballs


diff --git a/net/minecraft/world/entity/projectile/Snowball.java b/net/minecraft/world/entity/projectile/Snowball.java
index f712963fcd80535eee2bd04ec55ae1abdadef2bd..6fdacf2f6934521a0dd4b25aea35a6a14123da0a 100644
--- a/net/minecraft/world/entity/projectile/Snowball.java
+++ b/net/minecraft/world/entity/projectile/Snowball.java
@@ -63,6 +63,36 @@ public class Snowball extends ThrowableItemProjectile {
         entity.hurt(this.damageSources().thrown(this, this.getOwner()), (float) i);
     }
 
+    // Purpur start - borrowed and modified code from ThrownPotion#onHitBlock and ThrownPotion#dowseFire
+    @Override
+    protected void onHitBlock(net.minecraft.world.phys.BlockHitResult blockHitResult) {
+        super.onHitBlock(blockHitResult);
+
+        if (!this.level().isClientSide) {
+            net.minecraft.core.BlockPos blockposition = blockHitResult.getBlockPos();
+            net.minecraft.core.BlockPos blockposition1 = blockposition.relative(blockHitResult.getDirection());
+
+            net.minecraft.world.level.block.state.BlockState iblockdata = this.level().getBlockState(blockposition);
+
+            if (this.level().purpurConfig.snowballExtinguishesFire && this.level().getBlockState(blockposition1).is(net.minecraft.world.level.block.Blocks.FIRE)) {
+                if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this, blockposition1, net.minecraft.world.level.block.Blocks.AIR.defaultBlockState())) {
+                    this.level().removeBlock(blockposition1, false);
+                }
+            } else if (this.level().purpurConfig.snowballExtinguishesCandles && net.minecraft.world.level.block.AbstractCandleBlock.isLit(iblockdata)) {
+                if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this, blockposition, iblockdata.setValue(net.minecraft.world.level.block.AbstractCandleBlock.LIT, false))) {
+                    net.minecraft.world.level.block.AbstractCandleBlock.extinguish(null, iblockdata, this.level(), blockposition);
+                }
+            } else if (this.level().purpurConfig.snowballExtinguishesCampfires && net.minecraft.world.level.block.CampfireBlock.isLitCampfire(iblockdata)) {
+                if (org.bukkit.craftbukkit.event.CraftEventFactory.callEntityChangeBlockEvent(this, blockposition, iblockdata.setValue(net.minecraft.world.level.block.CampfireBlock.LIT, false))) {
+                    this.level().levelEvent(null, 1009, blockposition, 0);
+                    net.minecraft.world.level.block.CampfireBlock.dowse(this.getOwner(), this.level(), blockposition, iblockdata);
+                    this.level().setBlockAndUpdate(blockposition, iblockdata.setValue(net.minecraft.world.level.block.CampfireBlock.LIT, false));
+                }
+            }
+        }
+    }
+    // Purpur end
+
     @Override
     protected void onHit(HitResult hitResult) {
         super.onHit(hitResult);
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index eda31d2f341fd800e9c4d84c8b2c0207746ae227..d37cc14aa820be534d0afb434cd56a29764f9a6f 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -225,6 +225,9 @@ public class PurpurWorldConfig {
     public int glowBerriesEatGlowDuration = 0;
     public boolean shulkerBoxItemDropContentsWhenDestroyed = true;
     public boolean compassItemShowsBossBar = false;
+    public boolean snowballExtinguishesFire = false;
+    public boolean snowballExtinguishesCandles = false;
+    public boolean snowballExtinguishesCampfires = false;
     private void itemSettings() {
         itemImmuneToCactus.clear();
         getList("gameplay-mechanics.item.immune.cactus", new ArrayList<>()).forEach(key -> {
@@ -274,6 +277,9 @@ public class PurpurWorldConfig {
         glowBerriesEatGlowDuration = getInt("gameplay-mechanics.item.glow_berries.eat-glow-duration", glowBerriesEatGlowDuration);
         shulkerBoxItemDropContentsWhenDestroyed = getBoolean("gameplay-mechanics.item.shulker_box.drop-contents-when-destroyed", shulkerBoxItemDropContentsWhenDestroyed);
         compassItemShowsBossBar = getBoolean("gameplay-mechanics.item.compass.holding-shows-bossbar", compassItemShowsBossBar);
+        snowballExtinguishesFire = getBoolean("gameplay-mechanics.item.snowball.extinguish.fire", snowballExtinguishesFire);
+        snowballExtinguishesCandles = getBoolean("gameplay-mechanics.item.snowball.extinguish.candles", snowballExtinguishesCandles);
+        snowballExtinguishesCampfires = getBoolean("gameplay-mechanics.item.snowball.extinguish.campfires", snowballExtinguishesCampfires);
     }
 
     public double minecartMaxSpeed = 0.4D;