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package net.minecraft.server;
import org.bukkit.craftbukkit.event.CraftEventFactory; // CraftBukkit
public class BlockPoweredRail extends BlockMinecartTrackAbstract {
protected BlockPoweredRail() {
super(true);
}
protected boolean a(World world, int i, int j, int k, int l, boolean flag, int i1) {
if (i1 >= 8) {
return false;
} else {
int j1 = l & 0x7;
boolean flag1 = true;
switch (j1) {
case 0:
if (flag) {
++k;
} else {
--k;
}
break;
case 1:
if (flag) {
--i;
} else {
++i;
}
break;
case 2:
if (flag) {
i--;
} else {
++i;
++j;
flag1 = false;
}
j1 = 1;
break;
case 3:
if (flag) {
--i;
++j;
flag1 = false;
} else {
++i;
}
j1 = 1;
break;
case 4:
if (flag) {
++k;
} else {
--k;
++j;
flag1 = false;
}
j1 = 0;
break;
case 5:
if (flag) {
++k;
++j;
flag1 = false;
} else {
--k;
}
j1 = 0;
}
return this.a(world, i, j, k, flag, i1, j1) ? true : flag1 && this.a(world, i, j - 1, k, flag, i1, j1);
}
}
protected boolean a(World world, int i, int j, int k, boolean flag, int l, int i1) {
Block block = world.getType(i, j, k);
if (block == this) {
int j1 = world.getData(i, j, k);
int k1 = j1 & 0x7;
if (i1 == 1 && (k1 == 0 || k1 == 4 || k1 == 5)) {
return false;
}
if (i1 == 0 && (k1 == 1 || k1 == 2 || k1 == 3)) {
return false;
}
if ((j1 & 0x8) != 0) {
if (world.isBlockIndirectlyPowered(i, j, k)) {
return true;
}
return this.a(world, i, j, k, j1, flag, l + 1);
}
}
return false;
}
protected void a(World world, int i, int j, int k, int l, int i1, Block block) {
boolean flag = world.isBlockIndirectlyPowered(i, j, k);
flag = flag || this.a(world, i, j, k, l, true, 0) || this.a(world, i, j, k, l, false, 0);
boolean flag1 = false;
if (flag && (l & 0x8) == 0) {
// CraftBukkit start
if (CraftEventFactory.callRedstoneChange(world, i, j, k, 0, 15).getNewCurrent() <= 0) {
return;
}
// CraftBukkit end
world.setData(i, j, k, i1 | 0x8, 3);
flag1 = true;
} else if (!flag && (l & 0x8) != 0) {
// CraftBukkit start
if (CraftEventFactory.callRedstoneChange(world, i, j, k, 15, 0).getNewCurrent() > 0) {
return;
}
// CraftBukkit end
world.setData(i, j, k, i1, 3);
flag1 = true;
}
if (flag1) {
world.applyPhysics(i, j - 1, k, this);
if (i1 == 2 || i1 == 3 || i1 == 4 || i1 == 5) {
world.applyPhysics(i, j + 1, k, this);
}
}
}
}
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