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package net.minecraft.server;
import java.util.List;
import java.util.Random;
public class BlockPistonExtension extends Block {
public BlockPistonExtension() {
super(Material.PISTON);
this.a(i);
this.c(0.5F);
}
public void a(World world, int i, int j, int k, int l, EntityHuman entityhuman) {
if (entityhuman.abilities.canInstantlyBuild) {
int i1 = b(l);
Block block = world.getType(i - Facing.b[i1], j - Facing.c[i1], k - Facing.d[i1]);
if (block == Blocks.PISTON || block == Blocks.PISTON_STICKY) {
world.setAir(i - Facing.b[i1], j - Facing.c[i1], k - Facing.d[i1]);
}
}
super.a(world, i, j, k, l, entityhuman);
}
public void remove(World world, int i, int j, int k, Block block, int l) {
super.remove(world, i, j, k, block, l);
if ((l & 7) >= Facing.OPPOSITE_FACING.length) return; // CraftBukkit - fix a piston AIOOBE issue
int i1 = Facing.OPPOSITE_FACING[b(l)];
i += Facing.b[i1];
j += Facing.c[i1];
k += Facing.d[i1];
Block block1 = world.getType(i, j, k);
if (block1 == Blocks.PISTON || block1 == Blocks.PISTON_STICKY) {
l = world.getData(i, j, k);
if (BlockPiston.c(l)) {
block1.b(world, i, j, k, l, 0);
world.setAir(i, j, k);
}
}
}
public int b() {
return 17;
}
public boolean c() {
return false;
}
public boolean d() {
return false;
}
public boolean canPlace(World world, int i, int j, int k) {
return false;
}
public boolean canPlace(World world, int i, int j, int k, int l) {
return false;
}
public int a(Random random) {
return 0;
}
public void a(World world, int i, int j, int k, AxisAlignedBB axisalignedbb, List list, Entity entity) {
int l = world.getData(i, j, k);
float f = 0.25F;
float f1 = 0.375F;
float f2 = 0.625F;
float f3 = 0.25F;
float f4 = 0.75F;
switch (b(l)) {
case 0:
this.a(0.0F, 0.0F, 0.0F, 1.0F, 0.25F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
this.a(0.375F, 0.25F, 0.375F, 0.625F, 1.0F, 0.625F);
super.a(world, i, j, k, axisalignedbb, list, entity);
break;
case 1:
this.a(0.0F, 0.75F, 0.0F, 1.0F, 1.0F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
this.a(0.375F, 0.0F, 0.375F, 0.625F, 0.75F, 0.625F);
super.a(world, i, j, k, axisalignedbb, list, entity);
break;
case 2:
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 0.25F);
super.a(world, i, j, k, axisalignedbb, list, entity);
this.a(0.25F, 0.375F, 0.25F, 0.75F, 0.625F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
break;
case 3:
this.a(0.0F, 0.0F, 0.75F, 1.0F, 1.0F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
this.a(0.25F, 0.375F, 0.0F, 0.75F, 0.625F, 0.75F);
super.a(world, i, j, k, axisalignedbb, list, entity);
break;
case 4:
this.a(0.0F, 0.0F, 0.0F, 0.25F, 1.0F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
this.a(0.375F, 0.25F, 0.25F, 0.625F, 0.75F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
break;
case 5:
this.a(0.75F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
super.a(world, i, j, k, axisalignedbb, list, entity);
this.a(0.0F, 0.375F, 0.25F, 0.75F, 0.625F, 0.75F);
super.a(world, i, j, k, axisalignedbb, list, entity);
}
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
}
public void updateShape(IBlockAccess iblockaccess, int i, int j, int k) {
int l = iblockaccess.getData(i, j, k);
float f = 0.25F;
switch (b(l)) {
case 0:
this.a(0.0F, 0.0F, 0.0F, 1.0F, 0.25F, 1.0F);
break;
case 1:
this.a(0.0F, 0.75F, 0.0F, 1.0F, 1.0F, 1.0F);
break;
case 2:
this.a(0.0F, 0.0F, 0.0F, 1.0F, 1.0F, 0.25F);
break;
case 3:
this.a(0.0F, 0.0F, 0.75F, 1.0F, 1.0F, 1.0F);
break;
case 4:
this.a(0.0F, 0.0F, 0.0F, 0.25F, 1.0F, 1.0F);
break;
case 5:
this.a(0.75F, 0.0F, 0.0F, 1.0F, 1.0F, 1.0F);
}
}
public void doPhysics(World world, int i, int j, int k, Block block) {
int l = b(world.getData(i, j, k));
if ((l & 7) >= Facing.OPPOSITE_FACING.length) return; // CraftBukkit - fix a piston AIOOBE issue
Block block1 = world.getType(i - Facing.b[l], j - Facing.c[l], k - Facing.d[l]);
if (block1 != Blocks.PISTON && block1 != Blocks.PISTON_STICKY) {
world.setAir(i, j, k);
} else {
block1.doPhysics(world, i - Facing.b[l], j - Facing.c[l], k - Facing.d[l], block);
}
}
public static int b(int i) {
return MathHelper.a(i & 7, 0, Facing.b.length - 1);
}
}
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