PaperMC/Spigot-Server-Patches/0401-Fix-zero-tick-instant-grow-farms-MC-113809.patch

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From 801216b8988793fedf4755e0731d1480eec6c88e Mon Sep 17 00:00:00 2001
From: Phoenix616 <mail@moep.tv>
Date: Sun, 15 Sep 2019 11:32:32 -0500
Subject: [PATCH] Fix zero-tick instant grow farms MC-113809
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 928fefb4195..44210855560 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -554,6 +554,11 @@ public class PaperWorldConfig {
disableRelativeProjectileVelocity = getBoolean("game-mechanics.disable-relative-projectile-velocity", false);
}
+ public boolean fixZeroTickInstantGrowFarms = true;
+ private void fixZeroTickInstantGrowFarms() {
+ fixZeroTickInstantGrowFarms = getBoolean("fix-zero-tick-instant-grow-farms", fixZeroTickInstantGrowFarms);
+ }
+
public boolean altItemDespawnRateEnabled;
public Map<Material, Integer> altItemDespawnRateMap;
private void altItemDespawnRate() {
diff --git a/src/main/java/net/minecraft/server/Block.java b/src/main/java/net/minecraft/server/Block.java
index 540fcce1dd4..e29ec958b35 100644
--- a/src/main/java/net/minecraft/server/Block.java
+++ b/src/main/java/net/minecraft/server/Block.java
@@ -46,6 +46,7 @@ public class Block implements IMaterial {
private final float g;
protected final BlockStateList<Block, IBlockData> blockStateList;
private IBlockData blockData;
+ public boolean randomTick = false; // Paper - fix MC-113809
protected final boolean v;
private final boolean i;
private final boolean j;
diff --git a/src/main/java/net/minecraft/server/BlockBamboo.java b/src/main/java/net/minecraft/server/BlockBamboo.java
index c482aad3e3e..02c548dd9c9 100644
--- a/src/main/java/net/minecraft/server/BlockBamboo.java
+++ b/src/main/java/net/minecraft/server/BlockBamboo.java
@@ -85,6 +85,7 @@ public class BlockBamboo extends Block implements IBlockFragilePlantElement {
if (!iblockdata.canPlace(worldserver, blockposition)) {
worldserver.b(blockposition, true);
} else if ((Integer) iblockdata.get(BlockBamboo.f) == 0) {
+ if (worldserver.paperConfig.fixZeroTickInstantGrowFarms && !randomTick) return; // Paper - fix MC-113809
if (random.nextInt(Math.max(1, (int) (100.0F / worldserver.spigotConfig.bambooModifier) * 3)) == 0 && worldserver.isEmpty(blockposition.up()) && worldserver.getLightLevel(blockposition.up(), 0) >= 9) { // Spigot
int i = this.b(worldserver, blockposition) + 1;
diff --git a/src/main/java/net/minecraft/server/BlockCactus.java b/src/main/java/net/minecraft/server/BlockCactus.java
index e0974e256f0..3524fcb9278 100644
--- a/src/main/java/net/minecraft/server/BlockCactus.java
+++ b/src/main/java/net/minecraft/server/BlockCactus.java
@@ -21,6 +21,7 @@ public class BlockCactus extends Block {
if (!iblockdata.canPlace(worldserver, blockposition)) {
worldserver.b(blockposition, true);
} else {
+ if (worldserver.paperConfig.fixZeroTickInstantGrowFarms && !randomTick) return; // Paper - fix MC-113809
BlockPosition blockposition1 = blockposition.up();
if (worldserver.isEmpty(blockposition1)) {
diff --git a/src/main/java/net/minecraft/server/BlockChorusFlower.java b/src/main/java/net/minecraft/server/BlockChorusFlower.java
index d70b52cadf1..b624cf38047 100644
--- a/src/main/java/net/minecraft/server/BlockChorusFlower.java
+++ b/src/main/java/net/minecraft/server/BlockChorusFlower.java
@@ -22,6 +22,7 @@ public class BlockChorusFlower extends Block {
if (!iblockdata.canPlace(worldserver, blockposition)) {
worldserver.b(blockposition, true);
} else {
+ if (worldserver.paperConfig.fixZeroTickInstantGrowFarms && !randomTick) return; // Paper - fix MC-113809
BlockPosition blockposition1 = blockposition.up();
if (worldserver.isEmpty(blockposition1) && blockposition1.getY() < 256) {
diff --git a/src/main/java/net/minecraft/server/BlockReed.java b/src/main/java/net/minecraft/server/BlockReed.java
index 55b07444e1d..3bc3c5aa29f 100644
--- a/src/main/java/net/minecraft/server/BlockReed.java
+++ b/src/main/java/net/minecraft/server/BlockReed.java
@@ -23,6 +23,7 @@ public class BlockReed extends Block {
if (!iblockdata.canPlace(worldserver, blockposition)) {
worldserver.b(blockposition, true);
} else if (worldserver.isEmpty(blockposition.up())) {
+ if (worldserver.paperConfig.fixZeroTickInstantGrowFarms && !randomTick) return; // Paper - fix MC-113809
int i;
for (i = 1; worldserver.getType(blockposition.down(i)).getBlock() == this; ++i) {
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 38c5b721bf1..17560a20fce 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -589,7 +589,9 @@ public class WorldServer extends World {
IBlockData iblockdata = chunksection.getType(blockposition2.getX() - j, blockposition2.getY() - j1, blockposition2.getZ() - k);
if (iblockdata.q()) {
+ iblockdata.getBlock().randomTick = true; // Paper - fix MC-113809
iblockdata.b(this, blockposition2, this.random);
+ iblockdata.getBlock().randomTick = false; // Paper - fix MC-113809
}
Fluid fluid = iblockdata.getFluid();
--
2.26.2