From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Fri, 3 Jul 2020 00:03:52 -0500
Subject: [PATCH] Add phantom spawning options


diff --git a/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java b/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
index 021221da5d0315f6e371380a705ac6b3f6ac18d3..27eb9a365006884c85603dc6d9dd8eee009c98b3 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/PhantomSpawner.java
@@ -48,7 +48,7 @@ public class PhantomSpawner implements CustomSpawner {
                 int spawnAttemptMaxSeconds = world.paperConfig().entities.behavior.phantomsSpawnAttemptMaxSeconds;
                 this.nextTick += (spawnAttemptMinSeconds + randomsource.nextInt(spawnAttemptMaxSeconds - spawnAttemptMinSeconds + 1)) * 20;
                 // Paper end - Ability to control player's insomnia and phantoms
-                if (world.getSkyDarken() < 5 && world.dimensionType().hasSkyLight()) {
+                if (world.getSkyDarken() < world.purpurConfig.phantomSpawnMinSkyDarkness && world.dimensionType().hasSkyLight()) { // Purpur
                     return 0;
                 } else {
                     int i = 0;
@@ -60,10 +60,10 @@ public class PhantomSpawner implements CustomSpawner {
                         if (!entityplayer.isSpectator() && (!world.paperConfig().entities.behavior.phantomsDoNotSpawnOnCreativePlayers || !entityplayer.isCreative())) { // Paper - Add phantom creative and insomniac controls
                             BlockPos blockposition = entityplayer.blockPosition();
 
-                            if (!world.dimensionType().hasSkyLight() || blockposition.getY() >= world.getSeaLevel() && world.canSeeSky(blockposition)) {
+                            if (!world.dimensionType().hasSkyLight() || (!world.purpurConfig.phantomSpawnOnlyAboveSeaLevel || blockposition.getY() >= world.getSeaLevel()) && (!world.purpurConfig.phantomSpawnOnlyWithVisibleSky || world.canSeeSky(blockposition))) { // Purpur
                                 DifficultyInstance difficultydamagescaler = world.getCurrentDifficultyAt(blockposition);
 
-                                if (difficultydamagescaler.isHarderThan(randomsource.nextFloat() * 3.0F)) {
+                                if (difficultydamagescaler.isHarderThan(randomsource.nextFloat() * (float) world.purpurConfig.phantomSpawnLocalDifficultyChance)) { // Purpur
                                     ServerStatsCounter serverstatisticmanager = entityplayer.getStats();
                                     int j = Mth.clamp(serverstatisticmanager.getValue(Stats.CUSTOM.get(Stats.TIME_SINCE_REST)), 1, Integer.MAX_VALUE);
                                     boolean flag2 = true;
@@ -75,7 +75,7 @@ public class PhantomSpawner implements CustomSpawner {
 
                                         if (NaturalSpawner.isValidEmptySpawnBlock(world, blockposition1, iblockdata, fluid, EntityType.PHANTOM)) {
                                             SpawnGroupData groupdataentity = null;
-                                            int k = 1 + randomsource.nextInt(difficultydamagescaler.getDifficulty().getId() + 1);
+                                            int k = world.purpurConfig.phantomSpawnMinPerAttempt + world.random.nextInt((world.purpurConfig.phantomSpawnMaxPerAttempt < 0 ? difficultydamagescaler.getDifficulty().getId() : world.purpurConfig.phantomSpawnMaxPerAttempt - world.purpurConfig.phantomSpawnMinPerAttempt) + 1); // Purpur
 
                                             for (int l = 0; l < k; ++l) {
                                                 // Paper start - PhantomPreSpawnEvent
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 65c8b2e76677b92fee94e1149a9ce3803b3f1737..2858714275c2e3e9c0defaf264eeaade89e7cdaa 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1151,6 +1151,12 @@ public class PurpurWorldConfig {
     public double phantomAttackedByCrystalRadius = 0.0D;
     public float phantomAttackedByCrystalDamage = 1.0F;
     public double phantomOrbitCrystalRadius = 0.0D;
+    public int phantomSpawnMinSkyDarkness = 5;
+    public boolean phantomSpawnOnlyAboveSeaLevel = true;
+    public boolean phantomSpawnOnlyWithVisibleSky = true;
+    public double phantomSpawnLocalDifficultyChance = 3.0D;
+    public int phantomSpawnMinPerAttempt = 1;
+    public int phantomSpawnMaxPerAttempt = -1;
     private void phantomSettings() {
         phantomRidable = getBoolean("mobs.phantom.ridable", phantomRidable);
         phantomRidableInWater = getBoolean("mobs.phantom.ridable-in-water", phantomRidableInWater);
@@ -1175,6 +1181,12 @@ public class PurpurWorldConfig {
         phantomAttackedByCrystalRadius = getDouble("mobs.phantom.attacked-by-crystal-range", phantomAttackedByCrystalRadius);
         phantomAttackedByCrystalDamage = (float) getDouble("mobs.phantom.attacked-by-crystal-damage", phantomAttackedByCrystalDamage);
         phantomOrbitCrystalRadius = getDouble("mobs.phantom.orbit-crystal-radius", phantomOrbitCrystalRadius);
+        phantomSpawnMinSkyDarkness = getInt("mobs.phantom.spawn.min-sky-darkness", phantomSpawnMinSkyDarkness);
+        phantomSpawnOnlyAboveSeaLevel = getBoolean("mobs.phantom.spawn.only-above-sea-level", phantomSpawnOnlyAboveSeaLevel);
+        phantomSpawnOnlyWithVisibleSky = getBoolean("mobs.phantom.spawn.only-with-visible-sky", phantomSpawnOnlyWithVisibleSky);
+        phantomSpawnLocalDifficultyChance = getDouble("mobs.phantom.spawn.local-difficulty-chance", phantomSpawnLocalDifficultyChance);
+        phantomSpawnMinPerAttempt = getInt("mobs.phantom.spawn.per-attempt.min", phantomSpawnMinPerAttempt);
+        phantomSpawnMaxPerAttempt = getInt("mobs.phantom.spawn.per-attempt.max", phantomSpawnMaxPerAttempt);
     }
 
     public boolean pigRidable = false;