package net.minecraft.server; import java.util.List; // 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 final boolean a; public BlockPiston(boolean flag) { super(Material.PISTON); this.a = flag; this.a(i); this.c(0.5F); this.a(CreativeModeTab.d); } public int b() { return 16; } public boolean c() { return false; } public boolean interact(World world, int i, int j, int k, EntityHuman entityhuman, int l, float f, float f1, float f2) { return false; } public void postPlace(World world, int i, int j, int k, EntityLiving entityliving, ItemStack itemstack) { int l = a(world, i, j, k, entityliving); world.setData(i, j, k, l, 2); if (!world.isStatic) { this.e(world, i, j, k); } } public void doPhysics(World world, int i, int j, int k, Block block) { if (!world.isStatic) { this.e(world, i, j, k); } } public void onPlace(World world, int i, int j, int k) { if (!world.isStatic && world.getTileEntity(i, j, k) == null) { this.e(world, i, j, k); } } private void e(World world, int i, int j, int k) { int l = world.getData(i, j, k); int i1 = b(l); if (i1 != 7) { boolean flag = this.a(world, i, j, k, i1); if (flag && !c(l)) { // CraftBukkit start int length = h(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.playNote(i, j, k, this, 0, i1); } } else if (!flag && c(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.setData(i, j, k, i1, 2); world.playNote(i, j, k, this, 1, i1); } } } private boolean a(World world, int i, int j, int k, int l) { return l != 0 && world.isBlockFacePowered(i, j - 1, k, 0) ? true : (l != 1 && world.isBlockFacePowered(i, j + 1, k, 1) ? true : (l != 2 && world.isBlockFacePowered(i, j, k - 1, 2) ? true : (l != 3 && world.isBlockFacePowered(i, j, k + 1, 3) ? true : (l != 5 && world.isBlockFacePowered(i + 1, j, k, 5) ? true : (l != 4 && world.isBlockFacePowered(i - 1, j, k, 4) ? true : (world.isBlockFacePowered(i, j, k, 0) ? true : (world.isBlockFacePowered(i, j + 2, k, 1) ? true : (world.isBlockFacePowered(i, j + 1, k - 1, 2) ? true : (world.isBlockFacePowered(i, j + 1, k + 1, 3) ? true : (world.isBlockFacePowered(i - 1, j + 1, k, 4) ? true : world.isBlockFacePowered(i + 1, j + 1, k, 5))))))))))); } public boolean a(World world, int i, int j, int k, int l, int i1) { if (!world.isStatic) { boolean flag = this.a(world, i, j, k, i1); if (flag && l == 1) { world.setData(i, j, k, i1 | 8, 2); return false; } if (!flag && l == 0) { return false; } } if (l == 0) { if (!this.i(world, i, j, k, i1)) { return false; } world.setData(i, j, k, i1 | 8, 2); 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 if (l == 1) { TileEntity tileentity = world.getTileEntity(i + Facing.b[i1], j + Facing.c[i1], k + Facing.d[i1]); if (tileentity instanceof TileEntityPiston) { ((TileEntityPiston) tileentity).f(); } world.setTypeAndData(i, j, k, Blocks.PISTON_MOVING, i1, 3); world.setTileEntity(i, j, k, BlockPistonMoving.a(this, 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; Block block = world.getType(j1, k1, l1); int i2 = world.getData(j1, k1, l1); boolean flag1 = false; if (block == Blocks.PISTON_MOVING) { TileEntity tileentity1 = world.getTileEntity(j1, k1, l1); if (tileentity1 instanceof TileEntityPiston) { TileEntityPiston tileentitypiston = (TileEntityPiston) tileentity1; if (tileentitypiston.c() == i1 && tileentitypiston.b()) { tileentitypiston.f(); block = tileentitypiston.a(); i2 = tileentitypiston.p(); flag1 = true; } } } if (!flag1 && block.getMaterial() != Material.AIR && a(block, world, j1, k1, l1, false) && (block.h() == 0 || block == Blocks.PISTON || block == Blocks.PISTON_STICKY)) { i += Facing.b[i1]; j += Facing.c[i1]; k += Facing.d[i1]; world.setTypeAndData(i, j, k, Blocks.PISTON_MOVING, i2, 3); world.setTileEntity(i, j, k, BlockPistonMoving.a(block, i2, i1, false, false)); world.setAir(j1, k1, l1); } else if (!flag1) { world.setAir(i + Facing.b[i1], j + Facing.c[i1], k + Facing.d[i1]); } } else { world.setAir(i + Facing.b[i1], j + Facing.c[i1], k + Facing.d[i1]); } 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); } return true; } public void updateShape(IBlockAccess iblockaccess, int i, int j, int k) { int l = iblockaccess.getData(i, j, k); if (c(l)) { float f = 0.25F; switch (b(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 g() { 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, List list, Entity entity) { this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F); super.a(world, i, j, k, axisalignedbb, list, entity); } public AxisAlignedBB a(World world, int i, int j, int k) { this.updateShape(world, i, j, k); return super.a(world, i, j, k); } public boolean d() { return false; } public static int b(int i) { if ((i & 7) >= Facing.OPPOSITE_FACING.length) return 7; // CraftBukkit - check for AIOOB on piston data return i & 7; } public static boolean c(int i) { return (i & 8) != 0; } public static int a(World world, int i, int j, int k, EntityLiving entityliving) { if (MathHelper.abs((float) entityliving.locX - (float) i) < 2.0F && MathHelper.abs((float) entityliving.locZ - (float) k) < 2.0F) { double d0 = entityliving.locY + 1.82D - (double) entityliving.height; if (d0 - (double) j > 2.0D) { return 1; } if ((double) j - d0 > 0.0D) { return 0; } } int l = MathHelper.floor((double) (entityliving.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(Block block, World world, int i, int j, int k, boolean flag) { if (block == Blocks.OBSIDIAN) { return false; } else { if (block != Blocks.PISTON && block != Blocks.PISTON_STICKY) { if (block.f(world, i, j, k) == -1.0F) { return false; } if (block.h() == 2) { return false; } if (block.h() == 1) { if (!flag) { return false; } return true; } } else if (c(world.getData(i, j, k))) { return false; } return !(block instanceof IContainer); } } // CraftBukkit - boolean -> int return private static int 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) { if (l1 < 13) { if (j1 <= 0 || j1 >= 255) { return -1; // CraftBukkit } Block block = world.getType(i1, j1, k1); if (block.getMaterial() != Material.AIR) { if (!a(block, world, i1, j1, k1, true)) { return -1; // CraftBukkit } if (block.h() != 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 i(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 false; } Block block = world.getType(i1, j1, k1); if (block.getMaterial() != Material.AIR) { if (!a(block, world, i1, j1, k1, true)) { return false; } if (block.h() != 1) { if (l1 == 12) { return false; } i1 += Facing.b[l]; j1 += Facing.c[l]; k1 += Facing.d[l]; ++l1; continue; } block.b(world, i1, j1, k1, world.getData(i1, j1, k1), 0); world.setAir(i1, j1, k1); } } l1 = i1; int i2 = j1; int j2 = k1; int k2 = 0; Block[] ablock; int l2; int i3; int j3; for (ablock = new Block[13]; i1 != i || j1 != j || k1 != k; k1 = j3) { l2 = i1 - Facing.b[l]; i3 = j1 - Facing.c[l]; j3 = k1 - Facing.d[l]; Block block1 = world.getType(l2, i3, j3); int k3 = world.getData(l2, i3, j3); if (block1 == this && l2 == i && i3 == j && j3 == k) { world.setTypeAndData(i1, j1, k1, Blocks.PISTON_MOVING, l | (this.a ? 8 : 0), 4); world.setTileEntity(i1, j1, k1, BlockPistonMoving.a(Blocks.PISTON_EXTENSION, l | (this.a ? 8 : 0), l, true, false)); } else { world.setTypeAndData(i1, j1, k1, Blocks.PISTON_MOVING, k3, 4); world.setTileEntity(i1, j1, k1, BlockPistonMoving.a(block1, k3, l, true, false)); } ablock[k2++] = block1; i1 = l2; j1 = i3; } i1 = l1; j1 = i2; k1 = j2; for (k2 = 0; i1 != i || j1 != j || k1 != k; k1 = j3) { l2 = i1 - Facing.b[l]; i3 = j1 - Facing.c[l]; j3 = k1 - Facing.d[l]; world.applyPhysics(l2, i3, j3, ablock[k2++]); i1 = l2; j1 = i3; } return true; } } }