From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Thu, 19 Jan 2023 23:38:50 +0800
Subject: [PATCH] MC Technical Survival Mode

Will automatically overwrite some configuration after startup

diff --git a/src/main/java/io/papermc/paper/configuration/PaperConfigurations.java b/src/main/java/io/papermc/paper/configuration/PaperConfigurations.java
index 1029b6de6f36b08bf634b4056ef5701383f6f258..64bb056d409c19eca724caa8512e6a597623170e 100644
--- a/src/main/java/io/papermc/paper/configuration/PaperConfigurations.java
+++ b/src/main/java/io/papermc/paper/configuration/PaperConfigurations.java
@@ -318,6 +318,7 @@ public class PaperConfigurations extends Configurations<GlobalConfiguration, Wor
             for (ServerLevel level : server.getAllLevels()) {
                 this.createWorldConfig(createWorldContextMap(level), reloader(this.worldConfigClass, level.paperConfig()));
             }
+            org.leavesmc.leaves.util.McTechnicalModeHelper.doMcTechnicalModeIf(); // Leaves - mc technical survival mode
         } catch (Exception ex) {
             throw new RuntimeException("Could not reload paper configuration files", ex);
         }
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 2eb2f244ff8a69c606b49f208c934afe4ee5f59f..e8fa04e83aa80d8284aa58bf3899f5c81e4a2ef6 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2509,7 +2509,7 @@ public class ServerLevel extends Level implements WorldGenLevel, ca.spottedleaf.
         public void onTickingEnd(Entity entity) {
             ServerLevel.this.entityTickList.remove(entity);
             // Paper start - Reset pearls when they stop being ticked
-            if (paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
+            if (!org.leavesmc.leaves.LeavesConfig.mcTechnicalMode && paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) { // Leaves - mc technical mode
                 pearl.cachedOwner = null;
                 pearl.ownerUUID = null;
             }
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index b4ddddc0bf56ef1993d5db5727287cbeb19e6e53..b70ee2d80756e90c495c578ceb1c9235c6861a6e 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -1632,7 +1632,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
 
     @Override
     public boolean isInvulnerableTo(DamageSource damageSource) {
-        return super.isInvulnerableTo(damageSource) || this.isChangingDimension()  || !this.level().paperConfig().collisions.allowPlayerCrammingDamage && damageSource == damageSources().cramming(); // Paper - disable player cramming
+        return super.isInvulnerableTo(damageSource) || this.isChangingDimension()  || !org.leavesmc.leaves.LeavesConfig.mcTechnicalMode && !this.level().paperConfig().collisions.allowPlayerCrammingDamage && damageSource == damageSources().cramming(); // Paper - disable player cramming // Leaves - mc technical survival mode
     }
 
     @Override
diff --git a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java
index a33d89fe9ca9e343edab8bb1cc88c54130ddb4a7..5efedc1cadf31f2b944ca5401ce0c21131a4ab94 100644
--- a/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java
+++ b/src/main/java/net/minecraft/world/entity/boss/enderdragon/EndCrystal.java
@@ -70,7 +70,7 @@ public class EndCrystal extends Entity {
                 // CraftBukkit end
             }
             // Paper start - Fix invulnerable end crystals
-            if (this.level().paperConfig().unsupportedSettings.fixInvulnerableEndCrystalExploit && this.generatedByDragonFight && this.isInvulnerable()) {
+            if (!org.leavesmc.leaves.LeavesConfig.mcTechnicalMode && this.level().paperConfig().unsupportedSettings.fixInvulnerableEndCrystalExploit && this.generatedByDragonFight && this.isInvulnerable()) { // Leaves - mc technical survival mode
                 if (!java.util.Objects.equals(((ServerLevel) this.level()).uuid, this.getOriginWorld())
                     || ((ServerLevel) this.level()).getDragonFight() == null
                     || ((ServerLevel) this.level()).getDragonFight().respawnStage == null
diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
index 42bd2d9a1528b6210e4dfb56233062fd97c9743b..8d494b549abb452bb554220060cc9c5beec5edf6 100644
--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
@@ -95,7 +95,7 @@ public class PrimedTnt extends Entity implements TraceableEntity {
 
     @Override
     public void tick() {
-        if (this.level().spigotConfig.maxTntTicksPerTick > 0 && ++this.level().spigotConfig.currentPrimedTnt > this.level().spigotConfig.maxTntTicksPerTick) { return; } // Spigot
+        if (this.level().spigotConfig.maxTntTicksPerTick > 0 && ++this.level().spigotConfig.currentPrimedTnt > (org.leavesmc.leaves.LeavesConfig.mcTechnicalMode ? 2000 : this.level().spigotConfig.maxTntTicksPerTick)) { return; } // Spigot // Leaves - mc technical survival mode
         this.handlePortal();
         this.applyGravity();
         this.move(MoverType.SELF, this.getDeltaMovement());
diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
index 10ade433c083851d9ea4797c6ec618db122229f9..dff461c78e3a613391601b4a948fe49e62332439 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
@@ -126,7 +126,7 @@ public abstract class Projectile extends Entity implements TraceableEntity {
         if (nbt.hasUUID("Owner")) {
             this.ownerUUID = nbt.getUUID("Owner");
             this.cachedOwner = null;
-            if (this instanceof ThrownEnderpearl && this.level() != null && this.level().paperConfig().fixes.disableUnloadedChunkEnderpearlExploit) { this.ownerUUID = null; } // Paper - Reset pearls when they stop being ticked; Don't store shooter name for pearls to block enderpearl travel exploit
+            if (this instanceof ThrownEnderpearl && this.level() != null && this.level().paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && !org.leavesmc.leaves.LeavesConfig.mcTechnicalMode) { this.ownerUUID = null; } // Paper - Reset pearls when they stop being ticked; Don't store shooter name for pearls to block enderpearl travel exploit // Leaves - mc technical mode
         }
 
         this.leftOwner = nbt.getBoolean("LeftOwner");
diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
index 8205d34ed80781b2aab1fb2ef59986b9370f0198..c5b26fdb173a59280e790a5d5a687e0c0114bb74 100644
--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
@@ -90,7 +90,7 @@ public final class NaturalSpawner {
 
             if (enumcreaturetype != MobCategory.MISC) {
                 // Paper start - Only count natural spawns
-                if (!entity.level().paperConfig().entities.spawning.countAllMobsForSpawning &&
+                if (!org.leavesmc.leaves.LeavesConfig.mcTechnicalMode && !entity.level().paperConfig().entities.spawning.countAllMobsForSpawning && // Leaves - mc technical survival mode
                     !(entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.NATURAL ||
                         entity.spawnReason == org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) {
                     continue;
diff --git a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
index 5f394cda052271b6ecfafc325733e5ae0524822f..cee74a6c47cd56a17a8faf68405fee09d6fd4655 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
@@ -295,7 +295,7 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
                 origItemStack.setCount(originalItemCount);
             }
         }
-        if (foundItem && level.paperConfig().hopper.cooldownWhenFull) { // Inventory was full - cooldown
+        if (foundItem && level.paperConfig().hopper.cooldownWhenFull && !org.leavesmc.leaves.LeavesConfig.mcTechnicalMode) { // Inventory was full - cooldown // Leaves
             hopper.setCooldown(level.spigotConfig.hopperTransfer);
         }
         return false;
@@ -336,7 +336,7 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
         }
         origItemStack.setCount(originalItemCount);
 
-        if (level.paperConfig().hopper.cooldownWhenFull) {
+        if (level.paperConfig().hopper.cooldownWhenFull && !org.leavesmc.leaves.LeavesConfig.mcTechnicalMode) { // Leaves
             cooldownHopper(hopper);
         }
 
diff --git a/src/main/java/org/leavesmc/leaves/util/McTechnicalModeHelper.java b/src/main/java/org/leavesmc/leaves/util/McTechnicalModeHelper.java
new file mode 100644
index 0000000000000000000000000000000000000000..2fdcb75a1fb85ab2fc6759050b2e7ffa601dcfa0
--- /dev/null
+++ b/src/main/java/org/leavesmc/leaves/util/McTechnicalModeHelper.java
@@ -0,0 +1,27 @@
+package org.leavesmc.leaves.util;
+
+import io.papermc.paper.configuration.GlobalConfiguration;
+import org.leavesmc.leaves.LeavesConfig;
+
+import java.util.Map;
+
+public class McTechnicalModeHelper {
+
+    public static void doMcTechnicalModeIf() {
+        if (LeavesConfig.mcTechnicalMode) {
+            doMcTechnicalMode();
+        }
+    }
+
+    public static void doMcTechnicalMode() {
+        GlobalConfiguration.get().unsupportedSettings.allowPistonDuplication = true;
+        GlobalConfiguration.get().unsupportedSettings.allowHeadlessPistons = true;
+        GlobalConfiguration.get().unsupportedSettings.allowPermanentBlockBreakExploits = true;
+        GlobalConfiguration.get().unsupportedSettings.allowUnsafeEndPortalTeleportation = true;
+        GlobalConfiguration.get().packetLimiter.allPackets = new GlobalConfiguration.PacketLimiter.PacketLimit(GlobalConfiguration.get().packetLimiter.allPackets.interval(),
+            5000.0, GlobalConfiguration.get().packetLimiter.allPackets.action());
+        GlobalConfiguration.get().packetLimiter.overrides = Map.of();
+        GlobalConfiguration.get().itemValidation.resolveSelectorsInBooks = true;
+        GlobalConfiguration.get().scoreboards.saveEmptyScoreboardTeams = true;
+    }
+}