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papermc/Spigot-Server-Patches/0046-Configurable-TNT-cannon-fix.patch
Aikar 9ff01b16ab Add MCUtils helper 
This will be used by my next commit. But trying to get the build going
since CI blew up
2016-03-28 21:01:42 -04:00

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From b54bda97dbbe9c013c860bb721c8fc836486b243 Mon Sep 17 00:00:00 2001
From: Iceee <andrew@opticgaming.tv>
Date: Wed, 2 Mar 2016 23:00:53 -0600
Subject: [PATCH] Configurable TNT cannon fix
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 1236128..8d97890 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -241,4 +241,10 @@ public class PaperWorldConfig {
private void mobSpawnerTickRate() {
mobSpawnerTickRate = getInt("mob-spawner-tick-rate", 1);
}
+
+ public boolean fixCannons;
+ private void fixCannons() {
+ fixCannons = getBoolean("fix-cannons", false);
+ log("Fix TNT cannons: " + fixCannons);
+ }
}
diff --git a/src/main/java/net/minecraft/server/BlockDiodeAbstract.java b/src/main/java/net/minecraft/server/BlockDiodeAbstract.java
index ffc07cd..64aaba4 100644
--- a/src/main/java/net/minecraft/server/BlockDiodeAbstract.java
+++ b/src/main/java/net/minecraft/server/BlockDiodeAbstract.java
@@ -76,6 +76,17 @@ public abstract class BlockDiodeAbstract extends BlockFacingHorizontal {
} else {
this.b(world, blockposition, iblockdata, 0);
world.setAir(blockposition);
+ // Paper start - Fix cannons
+ if (world.paperConfig.fixCannons) {
+ world.applyPhysics(blockposition.shift(EnumDirection.EAST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.WEST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.SOUTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.NORTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.DOWN), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.UP), this);
+ return;
+ }
+ // Paper end
EnumDirection[] aenumdirection = EnumDirection.values();
int i = aenumdirection.length;
@@ -173,6 +184,17 @@ public abstract class BlockDiodeAbstract extends BlockFacingHorizontal {
public void postBreak(World world, BlockPosition blockposition, IBlockData iblockdata) {
if (this.d) {
+ // Paper start - Fix cannons
+ if (world.paperConfig.fixCannons) {
+ world.applyPhysics(blockposition.shift(EnumDirection.EAST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.WEST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.NORTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.SOUTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.DOWN), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.UP), this);
+ return;
+ }
+ // Paper end
EnumDirection[] aenumdirection = EnumDirection.values();
int i = aenumdirection.length;
diff --git a/src/main/java/net/minecraft/server/BlockRedstoneTorch.java b/src/main/java/net/minecraft/server/BlockRedstoneTorch.java
index b4d1741..257bbbb 100644
--- a/src/main/java/net/minecraft/server/BlockRedstoneTorch.java
+++ b/src/main/java/net/minecraft/server/BlockRedstoneTorch.java
@@ -52,6 +52,17 @@ public class BlockRedstoneTorch extends BlockTorch {
public void onPlace(World world, BlockPosition blockposition, IBlockData iblockdata) {
if (this.isOn) {
+ // Paper start - Fix cannons
+ if (world.paperConfig.fixCannons) {
+ world.applyPhysics(blockposition.shift(EnumDirection.DOWN), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.UP), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.WEST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.EAST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.SOUTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.NORTH), this);
+ return;
+ }
+ // Paper end
EnumDirection[] aenumdirection = EnumDirection.values();
int i = aenumdirection.length;
@@ -66,6 +77,17 @@ public class BlockRedstoneTorch extends BlockTorch {
public void remove(World world, BlockPosition blockposition, IBlockData iblockdata) {
if (this.isOn) {
+ // Paper start - Fix cannons
+ if (world.paperConfig.fixCannons) {
+ world.applyPhysics(blockposition.shift(EnumDirection.DOWN), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.UP), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.WEST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.EAST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.SOUTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.NORTH), this);
+ return;
+ }
+ // Paper end
EnumDirection[] aenumdirection = EnumDirection.values();
int i = aenumdirection.length;
diff --git a/src/main/java/net/minecraft/server/BlockRedstoneWire.java b/src/main/java/net/minecraft/server/BlockRedstoneWire.java
index 1a133d9..f4f9be6 100644
--- a/src/main/java/net/minecraft/server/BlockRedstoneWire.java
+++ b/src/main/java/net/minecraft/server/BlockRedstoneWire.java
@@ -184,6 +184,17 @@ public class BlockRedstoneWire extends Block {
}
this.B.add(blockposition);
+ // Paper start - Fix cannons
+ if (world.paperConfig.fixCannons) {
+ this.B.add(blockposition.shift(EnumDirection.WEST));
+ this.B.add(blockposition.shift(EnumDirection.EAST));
+ this.B.add(blockposition.shift(EnumDirection.DOWN));
+ this.B.add(blockposition.shift(EnumDirection.UP));
+ this.B.add(blockposition.shift(EnumDirection.NORTH));
+ this.B.add(blockposition.shift(EnumDirection.SOUTH));
+ return iblockdata;
+ }
+ // Paper end
EnumDirection[] aenumdirection = EnumDirection.values();
int i1 = aenumdirection.length;
@@ -200,6 +211,17 @@ public class BlockRedstoneWire extends Block {
private void b(World world, BlockPosition blockposition) {
if (world.getType(blockposition).getBlock() == this) {
world.applyPhysics(blockposition, this);
+ // Paper start - Fix cannons
+ if (world.paperConfig.fixCannons) {
+ world.applyPhysics(blockposition.shift(EnumDirection.WEST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.EAST), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.NORTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.SOUTH), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.DOWN), this);
+ world.applyPhysics(blockposition.shift(EnumDirection.UP), this);
+ return;
+ }
+ // Paper end
EnumDirection[] aenumdirection = EnumDirection.values();
int i = aenumdirection.length;
diff --git a/src/main/java/net/minecraft/server/BlockTNT.java b/src/main/java/net/minecraft/server/BlockTNT.java
index f794167..021a3be 100644
--- a/src/main/java/net/minecraft/server/BlockTNT.java
+++ b/src/main/java/net/minecraft/server/BlockTNT.java
@@ -29,7 +29,11 @@ public class BlockTNT extends Block {
public void wasExploded(World world, BlockPosition blockposition, Explosion explosion) {
if (!world.isClientSide) {
- EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), explosion.getSource());
+ // Paper start - Fix cannons
+ double y = blockposition.getY();
+ if (!world.paperConfig.fixCannons) y += 0.5;
+ EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), y, (double) ((float) blockposition.getZ() + 0.5F), explosion.getSource());
+ // Paper end
entitytntprimed.setFuseTicks((short) (world.random.nextInt(entitytntprimed.getFuseTicks() / 4) + entitytntprimed.getFuseTicks() / 8));
world.addEntity(entitytntprimed);
@@ -43,7 +47,11 @@ public class BlockTNT extends Block {
public void a(World world, BlockPosition blockposition, IBlockData iblockdata, EntityLiving entityliving) {
if (!world.isClientSide) {
if (((Boolean) iblockdata.get(BlockTNT.EXPLODE)).booleanValue()) {
- EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), (double) blockposition.getY(), (double) ((float) blockposition.getZ() + 0.5F), entityliving);
+ // Paper start - Fix cannons
+ double y = blockposition.getY();
+ if (!world.paperConfig.fixCannons) y += 0.5;
+ EntityTNTPrimed entitytntprimed = new EntityTNTPrimed(world, (double) ((float) blockposition.getX() + 0.5F), y, (double) ((float) blockposition.getZ() + 0.5F), entityliving);
+ // Paper end
world.addEntity(entitytntprimed);
world.a((EntityHuman) null, entitytntprimed.locX, entitytntprimed.locY, entitytntprimed.locZ, SoundEffects.gj, SoundCategory.BLOCKS, 1.0F, 1.0F);
diff --git a/src/main/java/net/minecraft/server/DispenserRegistry.java b/src/main/java/net/minecraft/server/DispenserRegistry.java
index d7bea3d..61ac795 100644
--- a/src/main/java/net/minecraft/server/DispenserRegistry.java
+++ b/src/main/java/net/minecraft/server/DispenserRegistry.java
@@ -498,7 +498,11 @@ public class DispenserRegistry {
org.bukkit.block.Block block = world.getWorld().getBlockAt(isourceblock.getBlockPosition().getX(), isourceblock.getBlockPosition().getY(), isourceblock.getBlockPosition().getZ());
CraftItemStack craftItem = CraftItemStack.asCraftMirror(itemstack1);
- BlockDispenseEvent event = new BlockDispenseEvent(block, craftItem.clone(), new org.bukkit.util.Vector((double) blockposition.getX() + 0.5D, (double) blockposition.getY(), (double) blockposition.getZ() + 0.5D));
+ // Paper start - Fix cannons
+ double y = blockposition.getY();
+ if (!world.paperConfig.fixCannons) y += 0.5;
+ BlockDispenseEvent event = new BlockDispenseEvent(block, craftItem.clone(), new org.bukkit.util.Vector((double) blockposition.getX() + 0.5D, y, (double) blockposition.getZ() + 0.5D));
+ // Paper end
if (!BlockDispenser.eventFired) {
world.getServer().getPluginManager().callEvent(event);
}
diff --git a/src/main/java/net/minecraft/server/EntityFallingBlock.java b/src/main/java/net/minecraft/server/EntityFallingBlock.java
index 8f2b253..23fb154 100644
--- a/src/main/java/net/minecraft/server/EntityFallingBlock.java
+++ b/src/main/java/net/minecraft/server/EntityFallingBlock.java
@@ -274,4 +274,22 @@ public class EntityFallingBlock extends Entity {
public boolean br() {
return true;
}
+
+ // Paper start - Fix cannons
+ @Override
+ public double f(double d0, double d1, double d2) {
+ if (!world.paperConfig.fixCannons) return super.f(d0, d1, d2);
+
+ double d3 = this.locX - d0;
+ double d4 = this.locY + this.getHeadHeight() - d1;
+ double d5 = this.locZ - d2;
+
+ return (double) MathHelper.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
+ }
+
+ @Override
+ public float getHeadHeight() {
+ return world.paperConfig.fixCannons ? this.length / 2 : super.getHeadHeight();
+ }
+ // Paper end
}
diff --git a/src/main/java/net/minecraft/server/EntityTNTPrimed.java b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
index 1113b1c..12feacf 100644
--- a/src/main/java/net/minecraft/server/EntityTNTPrimed.java
+++ b/src/main/java/net/minecraft/server/EntityTNTPrimed.java
@@ -30,6 +30,7 @@ public class EntityTNTPrimed extends Entity {
this.lastY = d1;
this.lastZ = d2;
this.source = entityliving;
+ if (world.paperConfig.fixCannons) this.motX = this.motZ = 0.0F; // Paper - Fix cannons
}
protected void i() {
@@ -118,9 +119,66 @@ public class EntityTNTPrimed extends Entity {
return this.source;
}
+ // Paper start - Fix cannons
+ @Override
+ public double f(double d0, double d1, double d2) {
+ if (!world.paperConfig.fixCannons) return super.f(d0, d1, d2);
+
+ double d3 = this.locX - d0;
+ double d4 = this.locY + this.getHeadHeight() - d1;
+ double d5 = this.locZ - d2;
+
+ return (double) MathHelper.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
+ }
+
+ @Override
+ public boolean bd() {
+ return !world.paperConfig.fixCannons && super.bd();
+ }
+
+ @Override
public float getHeadHeight() {
- return 0.0F;
+ return world.paperConfig.fixCannons ? this.length / 2 : 0.0F;
+ }
+
+ /**
+ * Author: Jedediah Smith <jedediah@silencegreys.com>
+ */
+ @Override
+ public boolean aj() {
+ if (!world.paperConfig.fixCannons) return super.aj();
+
+ // Preserve velocity while calling the super method
+ double oldMotX = this.motX;
+ double oldMotY = this.motY;
+ double oldMotZ = this.motZ;
+
+ super.aj();
+
+ this.motX = oldMotX;
+ this.motY = oldMotY;
+ this.motZ = oldMotZ;
+
+ if (this.inWater) {
+ // Send position and velocity updates to nearby players on every tick while the TNT is in water.
+ // This does pretty well at keeping their clients in sync with the server.
+ EntityTrackerEntry ete = ((WorldServer) this.getWorld()).getTracker().trackedEntities.get(this.getId());
+ if (ete != null) {
+ PacketPlayOutEntityVelocity velocityPacket = new PacketPlayOutEntityVelocity(this);
+ PacketPlayOutEntityTeleport positionPacket = new PacketPlayOutEntityTeleport(this);
+
+ for (EntityPlayer viewer : ete.trackedPlayers) {
+ if ((viewer.locX - this.locX) * (viewer.locY - this.locY) * (viewer.locZ - this.locZ) < 16 * 16) {
+ viewer.playerConnection.sendPacket(velocityPacket);
+ viewer.playerConnection.sendPacket(positionPacket);
+ }
+ }
+ }
+ }
+
+ return this.inWater;
}
+ // Paper end
public void setFuseTicks(int i) {
this.datawatcher.set(EntityTNTPrimed.FUSE_TICKS, Integer.valueOf(i));
diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
index 418ee29..9b86454 100644
--- a/src/main/java/net/minecraft/server/Explosion.java
+++ b/src/main/java/net/minecraft/server/Explosion.java
@@ -148,9 +148,16 @@ public class Explosion {
d14 = entity instanceof EntityHuman && world.paperConfig.disableExplosionKnockback ? 0 : EnchantmentProtection.a((EntityLiving) entity, d13); // Paper - Disable explosion knockback
}
+ // Paper start - Fix cannons
+ /*
entity.motX += d8 * d14;
entity.motY += d9 * d14;
entity.motZ += d10 * d14;
+ */
+ // This impulse method sets the dirty flag, so clients will get an immediate velocity update
+ entity.g(d8 * d14, d9 * d14, d10 * d14);
+ // Paper end
+
if (entity instanceof EntityHuman) {
EntityHuman entityhuman = (EntityHuman) entity;
--
2.7.4
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