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Paper/src/main/java/net/minecraft/server/BlockPiston.java

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Java
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package net.minecraft.server;
import java.util.ArrayList;
// CraftBukkit start
import org.bukkit.craftbukkit.block.CraftBlock;
import org.bukkit.event.block.BlockPistonRetractEvent;
import org.bukkit.event.block.BlockPistonExtendEvent;
// CraftBukkit end
public class BlockPiston extends Block {
private boolean a;
private static boolean b;
public BlockPiston(int i, int j, boolean flag) {
super(i, j, Material.PISTON);
this.a = flag;
this.a(h);
this.c(0.5F);
}
public int a(int i, int j) {
int k = d(j);
return k > 5 ? this.textureId : (i == k ? (!e(j) && this.minX <= 0.0D && this.minY <= 0.0D && this.minZ <= 0.0D && this.maxX >= 1.0D && this.maxY >= 1.0D && this.maxZ >= 1.0D ? this.textureId : 110) : (i == Facing.OPPOSITE_FACING[k] ? 109 : 108));
}
public int c() {
return 16;
}
public boolean a() {
return false;
}
public boolean interact(World world, int i, int j, int k, EntityHuman entityhuman) {
return false;
}
public void postPlace(World world, int i, int j, int k, EntityLiving entityliving) {
int l = c(world, i, j, k, (EntityHuman) entityliving);
world.setData(i, j, k, l);
if (!world.isStatic && !b) {
this.g(world, i, j, k);
}
}
public void doPhysics(World world, int i, int j, int k, int l) {
if (!world.isStatic && !b) {
this.g(world, i, j, k);
}
}
public void onPlace(World world, int i, int j, int k) {
if (!world.isStatic && world.getTileEntity(i, j, k) == null && !b) {
this.g(world, i, j, k);
}
}
private void g(World world, int i, int j, int k) {
int l = world.getData(i, j, k);
int i1 = d(l);
boolean flag = this.f(world, i, j, k, i1);
if (l != 7) {
if (flag && !e(l)) {
// CraftBukkit start
int length = g(world, i, j, k, i1);
if (length >= 0) {
org.bukkit.block.Block block = world.getWorld().getBlockAt(i, j, k);
BlockPistonExtendEvent event = new BlockPistonExtendEvent(block, length, CraftBlock.notchToBlockFace(i1));
world.getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
return;
}
// CraftBukkit end
world.setRawData(i, j, k, i1 | 8);
world.playNote(i, j, k, 0, i1);
}
} else if (!flag && e(l)) {
// CraftBukkit start
org.bukkit.block.Block block = world.getWorld().getBlockAt(i, j, k);
BlockPistonRetractEvent event = new BlockPistonRetractEvent(block, CraftBlock.notchToBlockFace(i1));
world.getServer().getPluginManager().callEvent(event);
if (event.isCancelled()) {
return;
}
// CraftBukkit end
world.setRawData(i, j, k, i1);
world.playNote(i, j, k, 1, i1);
}
}
}
private boolean f(World world, int i, int j, int k, int l) {
return l != 0 && world.isBlockFaceIndirectlyPowered(i, j - 1, k, 0) ? true : (l != 1 && world.isBlockFaceIndirectlyPowered(i, j + 1, k, 1) ? true : (l != 2 && world.isBlockFaceIndirectlyPowered(i, j, k - 1, 2) ? true : (l != 3 && world.isBlockFaceIndirectlyPowered(i, j, k + 1, 3) ? true : (l != 5 && world.isBlockFaceIndirectlyPowered(i + 1, j, k, 5) ? true : (l != 4 && world.isBlockFaceIndirectlyPowered(i - 1, j, k, 4) ? true : (world.isBlockFaceIndirectlyPowered(i, j, k, 0) ? true : (world.isBlockFaceIndirectlyPowered(i, j + 2, k, 1) ? true : (world.isBlockFaceIndirectlyPowered(i, j + 1, k - 1, 2) ? true : (world.isBlockFaceIndirectlyPowered(i, j + 1, k + 1, 3) ? true : (world.isBlockFaceIndirectlyPowered(i - 1, j + 1, k, 4) ? true : world.isBlockFaceIndirectlyPowered(i + 1, j + 1, k, 5)))))))))));
}
public void a(World world, int i, int j, int k, int l, int i1) {
b = true;
if (l == 0) {
if (this.h(world, i, j, k, i1)) {
world.setData(i, j, k, i1 | 8);
world.makeSound((double) i + 0.5D, (double) j + 0.5D, (double) k + 0.5D, "tile.piston.out", 0.5F, world.random.nextFloat() * 0.25F + 0.6F);
} else {
world.setRawData(i, j, k, i1);
}
} else if (l == 1) {
TileEntity tileentity = world.getTileEntity(i + Facing.b[i1], j + Facing.c[i1], k + Facing.d[i1]);
if (tileentity != null && tileentity instanceof TileEntityPiston) {
((TileEntityPiston) tileentity).g();
}
world.setRawTypeIdAndData(i, j, k, Block.PISTON_MOVING.id, i1);
world.setTileEntity(i, j, k, BlockPistonMoving.a(this.id, i1, i1, false, true));
if (this.a) {
int j1 = i + Facing.b[i1] * 2;
int k1 = j + Facing.c[i1] * 2;
int l1 = k + Facing.d[i1] * 2;
int i2 = world.getTypeId(j1, k1, l1);
int j2 = world.getData(j1, k1, l1);
boolean flag = false;
if (i2 == Block.PISTON_MOVING.id) {
TileEntity tileentity1 = world.getTileEntity(j1, k1, l1);
if (tileentity1 != null && tileentity1 instanceof TileEntityPiston) {
TileEntityPiston tileentitypiston = (TileEntityPiston) tileentity1;
if (tileentitypiston.f() == i1 && tileentitypiston.e()) {
tileentitypiston.g();
i2 = tileentitypiston.c();
j2 = tileentitypiston.k();
flag = true;
}
}
}
if (!flag && i2 > 0 && a(i2, world, j1, k1, l1, false) && (Block.byId[i2].g() == 0 || i2 == Block.PISTON.id || i2 == Block.PISTON_STICKY.id)) {
i += Facing.b[i1];
j += Facing.c[i1];
k += Facing.d[i1];
world.setRawTypeIdAndData(i, j, k, Block.PISTON_MOVING.id, j2);
world.setTileEntity(i, j, k, BlockPistonMoving.a(i2, j2, i1, false, false));
b = false;
world.setTypeId(j1, k1, l1, 0);
b = true;
} else if (!flag) {
b = false;
world.setTypeId(i + Facing.b[i1], j + Facing.c[i1], k + Facing.d[i1], 0);
b = true;
}
} else {
b = false;
world.setTypeId(i + Facing.b[i1], j + Facing.c[i1], k + Facing.d[i1], 0);
b = true;
}
world.makeSound((double) i + 0.5D, (double) j + 0.5D, (double) k + 0.5D, "tile.piston.in", 0.5F, world.random.nextFloat() * 0.15F + 0.6F);
}
b = false;
}
public void updateShape(IBlockAccess iblockaccess, int i, int j, int k) {
int l = iblockaccess.getData(i, j, k);
if (e(l)) {
switch (d(l)) {
case 0:
this.a(0.0F, 0.25F, 0.0F, 1.0F, 1.0F, 1.0F);
break;
case 1:
this.a(0.0F, 0.0F, 0.0F, 1.0F, 0.75F, 1.0F);
break;
case 2:
this.a(0.0F, 0.0F, 0.25F, 1.0F, 1.0F, 1.0F);
break;
case 3:
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 0.75F);
break;
case 4:
this.a(0.25F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
break;
case 5:
this.a(0.0F, 0.0F, 0.0F, 0.75F, 1.0F, 1.0F);
}
} else {
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
}
}
public void f() {
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
}
public void a(World world, int i, int j, int k, AxisAlignedBB axisalignedbb, ArrayList arraylist) {
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
super.a(world, i, j, k, axisalignedbb, arraylist);
}
public AxisAlignedBB e(World world, int i, int j, int k) {
this.updateShape(world, i, j, k);
return super.e(world, i, j, k);
}
public boolean b() {
return false;
}
public static int d(int i) {
if ((i & 7) >= Facing.OPPOSITE_FACING.length) return 0; // CraftBukkit - check for AIOOB on piston data
return i & 7;
}
public static boolean e(int i) {
return (i & 8) != 0;
}
private static int c(World world, int i, int j, int k, EntityHuman entityhuman) {
if (MathHelper.abs((float) entityhuman.locX - (float) i) < 2.0F && MathHelper.abs((float) entityhuman.locZ - (float) k) < 2.0F) {
double d0 = entityhuman.locY + 1.82D - (double) entityhuman.height;
if (d0 - (double) j > 2.0D) {
return 1;
}
if ((double) j - d0 > 0.0D) {
return 0;
}
}
int l = MathHelper.floor((double) (entityhuman.yaw * 4.0F / 360.0F) + 0.5D) & 3;
return l == 0 ? 2 : (l == 1 ? 5 : (l == 2 ? 3 : (l == 3 ? 4 : 0)));
}
private static boolean a(int i, World world, int j, int k, int l, boolean flag) {
if (i == Block.OBSIDIAN.id) {
return false;
} else {
if (i != Block.PISTON.id && i != Block.PISTON_STICKY.id) {
if (Block.byId[i].m() == -1.0F) {
return false;
}
if (Block.byId[i].g() == 2) {
return false;
}
if (!flag && Block.byId[i].g() == 1) {
return false;
}
} else if (e(world.getData(j, k, l))) {
return false;
}
return !(Block.byId[i] instanceof BlockContainer);
}
}
// CraftBukkit - boolean -> int
private static int g(World world, int i, int j, int k, int l) {
int i1 = i + Facing.b[l];
int j1 = j + Facing.c[l];
int k1 = k + Facing.d[l];
int l1 = 0;
while (true) {
if (l1 < 13) {
if (j1 <= 0 || j1 >= 255) {
return -1; // CraftBukkit
}
int i2 = world.getTypeId(i1, j1, k1);
if (i2 != 0) {
if (!a(i2, world, i1, j1, k1, true)) {
return -1; // CraftBukkit
}
if (Block.byId[i2].g() != 1) {
if (l1 == 12) {
return -1; // CraftBukkit
}
i1 += Facing.b[l];
j1 += Facing.c[l];
k1 += Facing.d[l];
++l1;
continue;
}
}
}
return l1; // CraftBukkit
}
}
private boolean h(World world, int i, int j, int k, int l) {
int i1 = i + Facing.b[l];
int j1 = j + Facing.c[l];
int k1 = k + Facing.d[l];
int l1 = 0;
while (true) {
int i2;
if (l1 < 13) {
if (j1 <= 0 || j1 >= 255) {
return false;
}
i2 = world.getTypeId(i1, j1, k1);
if (i2 != 0) {
if (!a(i2, world, i1, j1, k1, true)) {
return false;
}
if (Block.byId[i2].g() != 1) {
if (l1 == 12) {
return false;
}
i1 += Facing.b[l];
j1 += Facing.c[l];
k1 += Facing.d[l];
++l1;
continue;
}
Block.byId[i2].b(world, i1, j1, k1, world.getData(i1, j1, k1), 0);
world.setTypeId(i1, j1, k1, 0);
}
}
while (i1 != i || j1 != j || k1 != k) {
l1 = i1 - Facing.b[l];
i2 = j1 - Facing.c[l];
int j2 = k1 - Facing.d[l];
int k2 = world.getTypeId(l1, i2, j2);
int l2 = world.getData(l1, i2, j2);
if (k2 == this.id && l1 == i && i2 == j && j2 == k) {
world.setRawTypeIdAndData(i1, j1, k1, Block.PISTON_MOVING.id, l | (this.a ? 8 : 0));
world.setTileEntity(i1, j1, k1, BlockPistonMoving.a(Block.PISTON_EXTENSION.id, l | (this.a ? 8 : 0), l, true, false));
} else {
world.setRawTypeIdAndData(i1, j1, k1, Block.PISTON_MOVING.id, l2);
world.setTileEntity(i1, j1, k1, BlockPistonMoving.a(k2, l2, l, true, false));
}
i1 = l1;
j1 = i2;
k1 = j2;
}
return true;
}
}
}
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