Paper/src/main/java/net/minecraft/server/Chunk.java
2011-02-07 09:49:42 +01:00

638 lines
16 KiB
Java

package net.minecraft.server;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;
public class Chunk {
public static boolean a;
public byte[] b;
public boolean c;
public World d;
public NibbleArray e;
public NibbleArray f;
public NibbleArray g;
public byte[] h;
public int i;
public final int j;
public final int k;
public Map l;
public List[] m;
public boolean n;
public boolean o;
public boolean p;
public boolean q;
public long r;
public Chunk(World world, int i, int j) {
this.l = new HashMap();
this.m = new List[8];
this.n = false;
this.o = false;
this.q = false;
this.r = 0L;
this.d = world;
this.j = i;
this.k = j;
this.h = new byte[256];
for (int k = 0; k < this.m.length; ++k) {
this.m[k] = new ArrayList();
}
// CraftBukkit start
bukkitChunk = new org.bukkit.craftbukkit.CraftChunk( this );
}
public org.bukkit.Chunk bukkitChunk;
// CraftBukkit end
public Chunk(World world, byte[] abyte, int i, int j) {
this(world, i, j);
this.b = abyte;
this.e = new NibbleArray(abyte.length);
this.f = new NibbleArray(abyte.length);
this.g = new NibbleArray(abyte.length);
}
public boolean a(int i, int j) {
return i == this.j && j == this.k;
}
public int b(int i, int j) {
return this.h[j << 4 | i] & 255;
}
public void a() {}
public void b() {
int i = 127;
int j;
int k;
for (j = 0; j < 16; ++j) {
for (k = 0; k < 16; ++k) {
int l = 127;
int i1;
for (i1 = j << 11 | k << 7; l > 0 && Block.q[this.b[i1 + l - 1]] == 0; --l) {
;
}
this.h[k << 4 | j] = (byte) l;
if (l < i) {
i = l;
}
if (!this.d.q.e) {
int j1 = 15;
int k1 = 127;
do {
j1 -= Block.q[this.b[i1 + k1]];
if (j1 > 0) {
this.f.a(j, k1, k, j1);
}
--k1;
} while (k1 > 0 && j1 > 0);
}
}
}
this.i = i;
for (j = 0; j < 16; ++j) {
for (k = 0; k < 16; ++k) {
this.c(j, k);
}
}
this.o = true;
}
public void c() {
byte b0 = 32;
for (int i = 0; i < 16; ++i) {
for (int j = 0; j < 16; ++j) {
int k = i << 11 | j << 7;
int l;
int i1;
for (l = 0; l < 128; ++l) {
i1 = Block.s[this.b[k + l]];
if (i1 > 0) {
this.g.a(i, l, j, i1);
}
}
l = 15;
for (i1 = b0 - 2; i1 < 128 && l > 0; this.g.a(i, i1, j, l)) {
++i1;
byte b1 = this.b[k + i1];
int j1 = Block.q[b1];
int k1 = Block.s[b1];
if (j1 == 0) {
j1 = 1;
}
l -= j1;
if (k1 > l) {
l = k1;
}
if (l < 0) {
l = 0;
}
}
}
}
this.d.a(EnumSkyBlock.BLOCK, this.j * 16, b0 - 1, this.k * 16, this.j * 16 + 16, b0 + 1, this.k * 16 + 16);
this.o = true;
}
private void c(int i, int j) {
int k = this.b(i, j);
int l = this.j * 16 + i;
int i1 = this.k * 16 + j;
this.f(l - 1, i1, k);
this.f(l + 1, i1, k);
this.f(l, i1 - 1, k);
this.f(l, i1 + 1, k);
}
private void f(int i, int j, int k) {
int l = this.d.d(i, j);
if (l > k) {
this.d.a(EnumSkyBlock.SKY, i, k, j, i, l, j);
this.o = true;
} else if (l < k) {
this.d.a(EnumSkyBlock.SKY, i, l, j, i, k, j);
this.o = true;
}
}
private void g(int i, int j, int k) {
int l = this.h[k << 4 | i] & 255;
int i1 = l;
if (j > l) {
i1 = j;
}
for (int j1 = i << 11 | k << 7; i1 > 0 && Block.q[this.b[j1 + i1 - 1]] == 0; --i1) {
;
}
if (i1 != l) {
this.d.g(i, k, i1, l);
this.h[k << 4 | i] = (byte) i1;
int k1;
int l1;
int i2;
if (i1 < this.i) {
this.i = i1;
} else {
k1 = 127;
for (l1 = 0; l1 < 16; ++l1) {
for (i2 = 0; i2 < 16; ++i2) {
if ((this.h[i2 << 4 | l1] & 255) < k1) {
k1 = this.h[i2 << 4 | l1] & 255;
}
}
}
this.i = k1;
}
k1 = this.j * 16 + i;
l1 = this.k * 16 + k;
if (i1 < l) {
for (i2 = i1; i2 < l; ++i2) {
this.f.a(i, i2, k, 15);
}
} else {
this.d.a(EnumSkyBlock.SKY, k1, l, l1, k1, i1, l1);
for (i2 = l; i2 < i1; ++i2) {
this.f.a(i, i2, k, 0);
}
}
i2 = 15;
int j2;
for (j2 = i1; i1 > 0 && i2 > 0; this.f.a(i, i1, k, i2)) {
--i1;
int k2 = Block.q[this.a(i, i1, k)];
if (k2 == 0) {
k2 = 1;
}
i2 -= k2;
if (i2 < 0) {
i2 = 0;
}
}
while (i1 > 0 && Block.q[this.a(i, i1 - 1, k)] == 0) {
--i1;
}
if (i1 != j2) {
this.d.a(EnumSkyBlock.SKY, k1 - 1, i1, l1 - 1, k1 + 1, j2, l1 + 1);
}
this.o = true;
}
}
public int a(int i, int j, int k) {
return this.b[i << 11 | k << 7 | j];
}
public boolean a(int i, int j, int k, int l, int i1) {
byte b0 = (byte) l;
int j1 = this.h[k << 4 | i] & 255;
int k1 = this.b[i << 11 | k << 7 | j] & 255;
if (k1 == l && this.e.a(i, j, k) == i1) {
return false;
} else {
int l1 = this.j * 16 + i;
int i2 = this.k * 16 + k;
this.b[i << 11 | k << 7 | j] = b0;
if (k1 != 0 && !this.d.isStatic) {
Block.byId[k1].b(this.d, l1, j, i2);
}
this.e.a(i, j, k, i1);
if (!this.d.q.e) {
if (Block.q[b0] != 0) {
if (j >= j1) {
this.g(i, j + 1, k);
}
} else if (j == j1 - 1) {
this.g(i, j, k);
}
this.d.a(EnumSkyBlock.SKY, l1, j, i2, l1, j, i2);
}
this.d.a(EnumSkyBlock.BLOCK, l1, j, i2, l1, j, i2);
this.c(i, k);
this.e.a(i, j, k, i1);
if (l != 0) {
Block.byId[l].e(this.d, l1, j, i2);
}
this.o = true;
return true;
}
}
public boolean a(int i, int j, int k, int l) {
byte b0 = (byte) l;
int i1 = this.h[k << 4 | i] & 255;
int j1 = this.b[i << 11 | k << 7 | j] & 255;
if (j1 == l) {
return false;
} else {
int k1 = this.j * 16 + i;
int l1 = this.k * 16 + k;
this.b[i << 11 | k << 7 | j] = b0;
if (j1 != 0) {
Block.byId[j1].b(this.d, k1, j, l1);
}
this.e.a(i, j, k, 0);
if (Block.q[b0] != 0) {
if (j >= i1) {
this.g(i, j + 1, k);
}
} else if (j == i1 - 1) {
this.g(i, j, k);
}
this.d.a(EnumSkyBlock.SKY, k1, j, l1, k1, j, l1);
this.d.a(EnumSkyBlock.BLOCK, k1, j, l1, k1, j, l1);
this.c(i, k);
if (l != 0 && !this.d.isStatic) {
Block.byId[l].e(this.d, k1, j, l1);
}
this.o = true;
return true;
}
}
public int b(int i, int j, int k) {
return this.e.a(i, j, k);
}
public void b(int i, int j, int k, int l) {
this.o = true;
this.e.a(i, j, k, l);
}
public int a(EnumSkyBlock enumskyblock, int i, int j, int k) {
return enumskyblock == EnumSkyBlock.SKY ? this.f.a(i, j, k) : (enumskyblock == EnumSkyBlock.BLOCK ? this.g.a(i, j, k) : 0);
}
public void a(EnumSkyBlock enumskyblock, int i, int j, int k, int l) {
this.o = true;
if (enumskyblock == EnumSkyBlock.SKY) {
this.f.a(i, j, k, l);
} else {
if (enumskyblock != EnumSkyBlock.BLOCK) {
return;
}
this.g.a(i, j, k, l);
}
}
public int c(int i, int j, int k, int l) {
int i1 = this.f.a(i, j, k);
if (i1 > 0) {
a = true;
}
i1 -= l;
int j1 = this.g.a(i, j, k);
if (j1 > i1) {
i1 = j1;
}
return i1;
}
public void a(Entity entity) {
this.q = true;
int i = MathHelper.b(entity.locX / 16.0D);
int j = MathHelper.b(entity.locZ / 16.0D);
if (i != this.j || j != this.k) {
System.out.println("Wrong location! " + entity);
System.out.println("" + entity.locX + "," + entity.locZ + "(" + i + "," + j + ") vs " + this.j + "," + this.k); // CraftBukkit
Thread.dumpStack();
}
int k = MathHelper.b(entity.locY / 16.0D);
if (k < 0) {
k = 0;
}
if (k >= this.m.length) {
k = this.m.length - 1;
}
entity.ag = true;
entity.chunkX = this.j;
entity.ai = k;
entity.chunkZ = this.k;
this.m[k].add(entity);
}
public void b(Entity entity) {
this.a(entity, entity.ai);
}
public void a(Entity entity, int i) {
if (i < 0) {
i = 0;
}
if (i >= this.m.length) {
i = this.m.length - 1;
}
this.m[i].remove(entity);
}
public boolean c(int i, int j, int k) {
return j >= (this.h[k << 4 | i] & 255);
}
public TileEntity d(int i, int j, int k) {
ChunkPosition chunkposition = new ChunkPosition(i, j, k);
TileEntity tileentity = (TileEntity) this.l.get(chunkposition);
if (tileentity == null) {
int l = this.a(i, j, k);
if (!Block.p[l]) {
return null;
}
BlockContainer blockcontainer = (BlockContainer) Block.byId[l];
blockcontainer.e(this.d, this.j * 16 + i, j, this.k * 16 + k);
tileentity = (TileEntity) this.l.get(chunkposition);
}
return tileentity;
}
public void a(TileEntity tileentity) {
int i = tileentity.b - this.j * 16;
int j = tileentity.c;
int k = tileentity.d - this.k * 16;
this.a(i, j, k, tileentity);
}
public void a(int i, int j, int k, TileEntity tileentity) {
ChunkPosition chunkposition = new ChunkPosition(i, j, k);
tileentity.a = this.d;
tileentity.b = this.j * 16 + i;
tileentity.c = j;
tileentity.d = this.k * 16 + k;
if (this.a(i, j, k) != 0 && Block.byId[this.a(i, j, k)] instanceof BlockContainer) {
if (this.c) {
if (this.l.get(chunkposition) != null) {
this.d.c.remove(this.l.get(chunkposition));
}
this.d.c.add(tileentity);
}
this.l.put(chunkposition, tileentity);
} else {
System.out.println("Attempted to place a tile entity where there was no entity tile!");
}
}
public void e(int i, int j, int k) {
ChunkPosition chunkposition = new ChunkPosition(i, j, k);
if (this.c) {
this.d.c.remove(this.l.remove(chunkposition));
}
}
public void d() {
this.c = true;
this.d.c.addAll(this.l.values());
for (int i = 0; i < this.m.length; ++i) {
this.d.a(this.m[i]);
}
}
public void e() {
this.c = false;
this.d.c.removeAll(this.l.values());
for (int i = 0; i < this.m.length; ++i) {
this.d.b(this.m[i]);
}
}
public void f() {
this.o = true;
}
public void a(Entity entity, AxisAlignedBB axisalignedbb, List list) {
int i = MathHelper.b((axisalignedbb.b - 2.0D) / 16.0D);
int j = MathHelper.b((axisalignedbb.e + 2.0D) / 16.0D);
if (i < 0) {
i = 0;
}
if (j >= this.m.length) {
j = this.m.length - 1;
}
for (int k = i; k <= j; ++k) {
List list1 = this.m[k];
for (int l = 0; l < list1.size(); ++l) {
Entity entity1 = (Entity) list1.get(l);
if (entity1 != entity && entity1.boundingBox.a(axisalignedbb)) {
list.add(entity1);
}
}
}
}
public void a(Class oclass, AxisAlignedBB axisalignedbb, List list) {
int i = MathHelper.b((axisalignedbb.b - 2.0D) / 16.0D);
int j = MathHelper.b((axisalignedbb.e + 2.0D) / 16.0D);
if (i < 0) {
i = 0;
}
if (j >= this.m.length) {
j = this.m.length - 1;
}
for (int k = i; k <= j; ++k) {
List list1 = this.m[k];
for (int l = 0; l < list1.size(); ++l) {
Entity entity = (Entity) list1.get(l);
if (oclass.isAssignableFrom(entity.getClass()) && entity.boundingBox.a(axisalignedbb)) {
list.add(entity);
}
}
}
}
public boolean a(boolean flag) {
if (this.p) {
return false;
} else {
if (flag) {
if (this.q && this.d.e != this.r) {
return true;
}
} else if (this.q && this.d.e >= this.r + 600L) {
return true;
}
return this.o;
}
}
public int a(byte[] abyte, int i, int j, int k, int l, int i1, int j1, int k1) {
int l1;
int i2;
int j2;
int k2;
for (l1 = i; l1 < l; ++l1) {
for (i2 = k; i2 < j1; ++i2) {
j2 = l1 << 11 | i2 << 7 | j;
k2 = i1 - j;
System.arraycopy(this.b, j2, abyte, k1, k2);
k1 += k2;
}
}
for (l1 = i; l1 < l; ++l1) {
for (i2 = k; i2 < j1; ++i2) {
j2 = (l1 << 11 | i2 << 7 | j) >> 1;
k2 = (i1 - j) / 2;
System.arraycopy(this.e.a, j2, abyte, k1, k2);
k1 += k2;
}
}
for (l1 = i; l1 < l; ++l1) {
for (i2 = k; i2 < j1; ++i2) {
j2 = (l1 << 11 | i2 << 7 | j) >> 1;
k2 = (i1 - j) / 2;
System.arraycopy(this.g.a, j2, abyte, k1, k2);
k1 += k2;
}
}
for (l1 = i; l1 < l; ++l1) {
for (i2 = k; i2 < j1; ++i2) {
j2 = (l1 << 11 | i2 << 7 | j) >> 1;
k2 = (i1 - j) / 2;
System.arraycopy(this.f.a, j2, abyte, k1, k2);
k1 += k2;
}
}
return k1;
}
public Random a(long i) {
return new Random(this.d.u + (long) (this.j * this.j * 4987142) + (long) (this.j * 5947611) + (long) (this.k * this.k) * 4392871L + (long) (this.k * 389711) ^ i);
}
public boolean g() {
return false;
}
}