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package net.minecraft.server;
import java.util.Random;
public class BlockMinecartTrack extends Block {
private final boolean a;
public static final boolean g(World world, int i, int j, int k) {
int l = world.getTypeId(i, j, k);
return l == Block.RAILS.id || l == Block.GOLDEN_RAIL.id || l == Block.DETECTOR_RAIL.id;
}
public static final boolean d(int i) {
return i == Block.RAILS.id || i == Block.GOLDEN_RAIL.id || i == Block.DETECTOR_RAIL.id;
}
protected BlockMinecartTrack(int i, int j, boolean flag) {
super(i, j, Material.ORIENTABLE);
this.a = flag;
this.a(0.0F, 0.0F, 0.0F, 1.0F, 0.125F, 1.0F);
}
public boolean i() {
return this.a;
}
public AxisAlignedBB e(World world, int i, int j, int k) {
return null;
}
public boolean a() {
return false;
}
public MovingObjectPosition a(World world, int i, int j, int k, Vec3D vec3d, Vec3D vec3d1) {
this.updateShape(world, i, j, k);
return super.a(world, i, j, k, vec3d, vec3d1);
}
public void updateShape(IBlockAccess iblockaccess, int i, int j, int k) {
int l = iblockaccess.getData(i, j, k);
if (l >= 2 && l <= 5) {
this.a(0.0F, 0.0F, 0.0F, 1.0F, 0.625F, 1.0F);
} else {
this.a(0.0F, 0.0F, 0.0F, 1.0F, 0.125F, 1.0F);
}
}
public int a(int i, int j) {
if (this.a) {
if (this.id == Block.GOLDEN_RAIL.id && (j & 8) == 0) {
return this.textureId - 16;
}
} else if (j >= 6) {
return this.textureId - 16;
}
return this.textureId;
}
public boolean b() {
return false;
}
public int c() {
return 9;
}
public int a(Random random) {
return 1;
}
public boolean canPlace(World world, int i, int j, int k) {
return world.e(i, j - 1, k);
}
public void onPlace(World world, int i, int j, int k) {
if (!world.isStatic) {
this.a(world, i, j, k, true);
if (this.id == Block.GOLDEN_RAIL.id) {
// this.doPhysics(world, i, j, k, this.id); CraftBukkit - Fix issues with rails
}
}
}
public void doPhysics(World world, int i, int j, int k, int l) {
if (!world.isStatic) {
int i1 = world.getData(i, j, k);
int j1 = i1;
if (this.a) {
j1 = i1 & 7;
}
boolean flag = false;
if (!world.e(i, j - 1, k)) {
flag = true;
}
if (j1 == 2 && !world.e(i + 1, j, k)) {
flag = true;
}
if (j1 == 3 && !world.e(i - 1, j, k)) {
flag = true;
}
if (j1 == 4 && !world.e(i, j, k - 1)) {
flag = true;
}
if (j1 == 5 && !world.e(i, j, k + 1)) {
flag = true;
}
if (flag) {
this.b(world, i, j, k, world.getData(i, j, k), 0);
world.setTypeId(i, j, k, 0);
} else if (this.id == Block.GOLDEN_RAIL.id) {
boolean flag1 = world.isBlockIndirectlyPowered(i, j, k);
flag1 = flag1 || this.a(world, i, j, k, i1, true, 0) || this.a(world, i, j, k, i1, false, 0);
boolean flag2 = false;
if (flag1 && (i1 & 8) == 0) {
world.setData(i, j, k, j1 | 8);
flag2 = true;
} else if (!flag1 && (i1 & 8) != 0) {
world.setData(i, j, k, j1);
flag2 = true;
}
if (flag2) {
world.applyPhysics(i, j - 1, k, this.id);
if (j1 == 2 || j1 == 3 || j1 == 4 || j1 == 5) {
world.applyPhysics(i, j + 1, k, this.id);
}
}
} else if (l > 0 && Block.byId[l].isPowerSource() && !this.a && MinecartTrackLogic.a(new MinecartTrackLogic(this, world, i, j, k)) == 3) {
this.a(world, i, j, k, false);
}
}
}
private void a(World world, int i, int j, int k, boolean flag) {
if (!world.isStatic) {
(new MinecartTrackLogic(this, world, i, j, k)).a(world.isBlockIndirectlyPowered(i, j, k), flag);
}
}
private 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 & 7;
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);
}
}
private boolean a(World world, int i, int j, int k, boolean flag, int l, int i1) {
int j1 = world.getTypeId(i, j, k);
if (j1 == Block.GOLDEN_RAIL.id) {
int k1 = world.getData(i, j, k);
int l1 = k1 & 7;
if (i1 == 1 && (l1 == 0 || l1 == 4 || l1 == 5)) {
return false;
}
if (i1 == 0 && (l1 == 1 || l1 == 2 || l1 == 3)) {
return false;
}
if ((k1 & 8) != 0) {
if (world.isBlockIndirectlyPowered(i, j, k)) {
return true;
}
return this.a(world, i, j, k, k1, flag, l + 1);
}
}
return false;
}
public int g() {
return 0;
}
static boolean a(BlockMinecartTrack blockminecarttrack) {
return blockminecarttrack.a;
}
}
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