Add leaves instant decay option (#1803)

Author: kacimiamine

purpur-server/minecraft-patches/sources/net/minecraft/world/level/block/LeavesBlock.java.patch

@@ -0,0 +1,23 @@
+--- a/net/minecraft/world/level/block/LeavesBlock.java
++++ b/net/minecraft/world/level/block/LeavesBlock.java
+@@ -65,6 +_,12 @@
+ 
+     @Override
+     protected void randomTick(final BlockState state, final ServerLevel level, final BlockPos pos, final RandomSource random) {
++        // Purpur start - Instant leaves decay
++        if (!level.purpurConfig.leavesInstantDecay) checkDecay(state, level, pos, random);
++    }
++
++    private void checkDecay(final BlockState state, final ServerLevel level, final BlockPos pos, final RandomSource random) {
++        // Purpur end - Instant leaves decay
+         if (this.decaying(state)) {
+             // CraftBukkit start
+             org.bukkit.event.block.LeavesDecayEvent event = new org.bukkit.event.block.LeavesDecayEvent(org.bukkit.craftbukkit.block.CraftBlock.at(level, pos));
+@@ -86,6 +_,7 @@
+     @Override
+     protected void tick(final BlockState state, final ServerLevel level, final BlockPos pos, final RandomSource random) {
+         level.setBlock(pos, updateDistance(state, level, pos), Block.UPDATE_ALL);
++        if (level.purpurConfig.leavesInstantDecay) checkDecay(state, level, pos, random); // Purpur - Instant leaves decay
+     }
+ 
+     @Override

purpur-server/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java

@@ -3899,4 +3899,9 @@ private void shearsCanDefuseTntSettings() {
         shearsCanDefuseTntChance = (float) getDouble("gameplay-mechanics.item.shears.defuse-tnt-chance", 0.00D);
         shearsCanDefuseTnt = shearsCanDefuseTntChance > 0.00F;
     }
+
+    public boolean leavesInstantDecay = false;
+    private void leavesSettings() {
+        leavesInstantDecay = getBoolean("blocks.leaves.instant-decay", leavesInstantDecay);
+    }
 }