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API: Work towards rewriting metadata, (This is nowhere near finished and I need to work on Item and NBT), Also change the names of a few classes to be more appropriate and implement transformation of the doubles.

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(I probably messed up somewhere, nothing is tested as this is essentially API design)
This commit is contained in:
Myles 2016-03-12 22:33:43 +00:00
parent 7cff20f218
commit e19a2920b9
15 changed files with 250 additions and 32 deletions
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15
src/main/java/us/myles/ViaVersion2/api/metadata/Metadata.java Normal file
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@ -0,0 +1,15 @@
package us.myles.ViaVersion2.api.metadata;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.Setter;
import us.myles.ViaVersion2.api.type.Type;
@AllArgsConstructor
@Getter
@Setter
public class Metadata {
private final int id;
private Type type;
private Object value;
}

10
src/main/java/us/myles/ViaVersion2/api/protocol1_9to1_8/Protocol1_9TO1_8.java
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@ -1,11 +1,21 @@
package us.myles.ViaVersion2.api.protocol1_9to1_8;
import us.myles.ViaVersion2.api.data.UserConnection;
import us.myles.ViaVersion2.api.metadata.Metadata;
import us.myles.ViaVersion2.api.protocol.Protocol;
import us.myles.ViaVersion2.api.protocol1_9to1_8.packets.SpawnPackets;
import us.myles.ViaVersion2.api.protocol1_9to1_8.storage.EntityTracker;
import us.myles.ViaVersion2.api.protocol1_9to1_8.types.MetadataListType;
import us.myles.ViaVersion2.api.protocol1_9to1_8.types.MetadataType;
import us.myles.ViaVersion2.api.type.Type;
import java.util.List;
public class Protocol1_9TO1_8 extends Protocol {
public static Type<List<Metadata>> METADATA_LIST = new MetadataListType();
public static Type<Metadata> METADATA = new MetadataType();
@Override
public void registerPackets() {
// Example PLAY_SPAWN_OBJECT(State.PLAY, Direction.OUTGOING, 0x0E, 0x00),

45
src/main/java/us/myles/ViaVersion2/api/protocol1_9to1_8/packets/SpawnPackets.java
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@ -3,12 +3,21 @@ package us.myles.ViaVersion2.api.protocol1_9to1_8.packets;
import us.myles.ViaVersion.packets.State;
import us.myles.ViaVersion2.api.PacketWrapper;
import us.myles.ViaVersion2.api.protocol.Protocol;
import us.myles.ViaVersion2.api.protocol1_9to1_8.Protocol1_9TO1_8;
import us.myles.ViaVersion2.api.protocol1_9to1_8.storage.EntityTracker;
import us.myles.ViaVersion2.api.remapper.PacketRemapper;
import us.myles.ViaVersion2.api.remapper.ValueCreator;
import us.myles.ViaVersion2.api.remapper.ValueTransformer;
import us.myles.ViaVersion2.api.type.Type;
public class SpawnPackets {
private static ValueTransformer<Integer, Double> toNewDouble = new ValueTransformer<Integer, Double>(Type.DOUBLE) {
@Override
public Double transform(PacketWrapper wrapper, Integer inputValue) {
return inputValue / 32D;
}
};
public static void register(Protocol protocol) {
// Spawn Object Packet
protocol.registerOutgoing(State.PLAY, 0x0E, 0x00, new PacketRemapper() {
@ -26,9 +35,9 @@ public class SpawnPackets {
});
map(Type.BYTE); // 2 - Type
map(Type.INT, Type.DOUBLE); // 3 - X - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 4 - Y - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 5 - Z - Needs to be divide by 32
map(Type.INT, toNewDouble); // 3 - X - Needs to be divide by 32
map(Type.INT, toNewDouble); // 4 - Y - Needs to be divide by 32
map(Type.INT, toNewDouble); // 5 - Z - Needs to be divide by 32
map(Type.BYTE); // 6 - Pitch
map(Type.BYTE); // 7 - Yaw
@ -63,9 +72,9 @@ public class SpawnPackets {
public void registerMap() {
map(Type.VAR_INT); // 0 - Entity ID
map(Type.INT, Type.DOUBLE); // 1 - X - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 2 - Y - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 3 - Z - Needs to be divide by 32
map(Type.INT, toNewDouble); // 1 - X - Needs to be divide by 32
map(Type.INT, toNewDouble); // 2 - Y - Needs to be divide by 32
map(Type.INT, toNewDouble); // 3 - Z - Needs to be divide by 32
map(Type.INT); // 4 - Data
}
@ -78,9 +87,9 @@ public class SpawnPackets {
map(Type.VAR_INT); // 0 - Entity ID
map(Type.BYTE); // 1 - Type
map(Type.INT, Type.DOUBLE); // 2 - X - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 3 - Y - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 4 - Z - Needs to be divide by 32
map(Type.INT, toNewDouble); // 2 - X - Needs to be divide by 32
map(Type.INT, toNewDouble); // 3 - Y - Needs to be divide by 32
map(Type.INT, toNewDouble); // 4 - Z - Needs to be divide by 32
}
});
@ -100,9 +109,9 @@ public class SpawnPackets {
});
map(Type.UNSIGNED_BYTE); // 2 - Type
map(Type.INT, Type.DOUBLE); // 3 - X - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 4 - Y - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 5 - Z - Needs to be divide by 32
map(Type.INT, toNewDouble); // 3 - X - Needs to be divide by 32
map(Type.INT, toNewDouble); // 4 - Y - Needs to be divide by 32
map(Type.INT, toNewDouble); // 5 - Z - Needs to be divide by 32
map(Type.BYTE); // 6 - Yaw
map(Type.BYTE); // 7 - Pitch
@ -112,7 +121,8 @@ public class SpawnPackets {
map(Type.SHORT); // 10 - Velocity Y
map(Type.SHORT); // 11 - Velocity Z
// TODO Read Metadata
// TODO Rewrite Metadata
map(Protocol1_9TO1_8.METADATA_LIST);
}
});
@ -145,16 +155,17 @@ public class SpawnPackets {
map(Type.VAR_INT); // 0 - Entity ID
map(Type.UUID); // 1 - Player UUID
map(Type.INT, Type.DOUBLE); // 2 - X - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 3 - Y - Needs to be divide by 32
map(Type.INT, Type.DOUBLE); // 4 - Z - Needs to be divide by 32
map(Type.INT, toNewDouble); // 2 - X - Needs to be divide by 32
map(Type.INT, toNewDouble); // 3 - Y - Needs to be divide by 32
map(Type.INT, toNewDouble); // 4 - Z - Needs to be divide by 32
map(Type.BYTE); // 5 - Yaw
map(Type.BYTE); // 6 - Pitch
map(Type.SHORT, Type.NOTHING); // Current Item is discontinued
// TODO Read Metadata
// TODO Rewrite Metadata
map(Protocol1_9TO1_8.METADATA_LIST);
}
});
}

38
src/main/java/us/myles/ViaVersion2/api/protocol1_9to1_8/types/MetadataListType.java Normal file
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@ -0,0 +1,38 @@
package us.myles.ViaVersion2.api.protocol1_9to1_8.types;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion2.api.metadata.Metadata;
import us.myles.ViaVersion2.api.protocol1_9to1_8.Protocol1_9TO1_8;
import us.myles.ViaVersion2.api.type.Type;
import java.util.ArrayList;
import java.util.List;
public class MetadataListType extends Type<List<Metadata>> {
public MetadataListType() {
super(List.class);
}
@Override
public List<Metadata> read(ByteBuf buffer) {
List<Metadata> list = new ArrayList<>();
Metadata m;
do {
m = Protocol1_9TO1_8.METADATA.read(buffer);
if (m != null) {
list.add(m);
}
} while (m != null);
return list;
}
@Override
public void write(ByteBuf buffer, List<Metadata> object) {
for(Metadata m:object){
Protocol1_9TO1_8.METADATA.write(buffer, m);
}
// Write end of list
Protocol1_9TO1_8.METADATA.write(buffer, null);
}
}

32
src/main/java/us/myles/ViaVersion2/api/protocol1_9to1_8/types/MetadataType.java Normal file
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@ -0,0 +1,32 @@
package us.myles.ViaVersion2.api.protocol1_9to1_8.types;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion2.api.metadata.Metadata;
import us.myles.ViaVersion2.api.type.Type;
public class MetadataType extends Type<Metadata> {
public MetadataType() {
super(Metadata.class);
}
@Override
public Metadata read(ByteBuf buffer) {
byte item = buffer.readByte();
if (item == 127) return null; // end of metadata
MetadataTypes type = MetadataTypes.byId((item & 0xE0) >> 5);
int id = item & 0x1F;
return new Metadata(id, type.getType(), type.getType().read(buffer));
}
@Override
public void write(ByteBuf buffer, Metadata object) {
if (object == null) {
buffer.writeByte(127);
} else {
buffer.writeByte(object.getId());
object.getType().write(buffer, object.getValue());
}
}
}

26
src/main/java/us/myles/ViaVersion2/api/protocol1_9to1_8/types/MetadataTypes.java Normal file
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@ -0,0 +1,26 @@
package us.myles.ViaVersion2.api.protocol1_9to1_8.types;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import us.myles.ViaVersion2.api.type.Type;
@RequiredArgsConstructor
@Getter
public enum MetadataTypes {
Byte(0, Type.BYTE),
Short(1, Type.SHORT),
Int(2, Type.INT),
Float(3, Type.FLOAT),
String(4, Type.STRING),
Slot(5, Type.ITEM),
Position(6, Type.VECTOR),
Rotation(7, Type.ROTATION),
NonExistent(-1, Type.NOTHING);
private final int typeID;
private final Type type;
public static MetadataTypes byId(int id) {
return values()[id];
}
}

14
src/main/java/us/myles/ViaVersion2/api/remapper/PacketRemapper.java
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@ -1,14 +1,14 @@
package us.myles.ViaVersion2.api.remapper;
import us.myles.ViaVersion2.api.PacketWrapper;
import us.myles.ViaVersion2.api.util.Pair;
import us.myles.ViaVersion2.api.type.Type;
import us.myles.ViaVersion2.api.util.Pair;
import java.util.ArrayList;
import java.util.List;
public abstract class PacketRemapper {
private List<Pair<ValueReader, ValueTransformer>> valueRemappers = new ArrayList<>();
private List<Pair<ValueReader, ValueWriter>> valueRemappers = new ArrayList<>();
public PacketRemapper() {
registerMap();
@ -23,8 +23,12 @@ public abstract class PacketRemapper {
map(new TypeRemapper(oldType), new TypeRemapper(newType));
}
public <T> void map(ValueReader<T> inputRemapper, ValueTransformer<T> outputRemapper) {
valueRemappers.add(new Pair<ValueReader, ValueTransformer>(inputRemapper, outputRemapper));
public <T1, T2> void map(Type<T1> oldType, ValueTransformer<T1, T2> transformer) {
map(new TypeRemapper(oldType), transformer);
}
public <T> void map(ValueReader<T> inputReader, ValueWriter<T> outputWriter) {
valueRemappers.add(new Pair<ValueReader, ValueWriter>(inputReader, outputWriter));
}
public void create(ValueCreator transformer) {
@ -35,7 +39,7 @@ public abstract class PacketRemapper {
public void remap(PacketWrapper packetWrapper) {
// Read all the current values
for(Pair<ValueReader, ValueTransformer> valueRemapper : valueRemappers){
for (Pair<ValueReader, ValueWriter> valueRemapper : valueRemappers) {
Object object = valueRemapper.getKey().read(packetWrapper);
// Convert object to write type :O!!!
// TODO: Data converter lol

2
src/main/java/us/myles/ViaVersion2/api/remapper/TypeRemapper.java
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@ -3,7 +3,7 @@ package us.myles.ViaVersion2.api.remapper;
import us.myles.ViaVersion2.api.PacketWrapper;
import us.myles.ViaVersion2.api.type.Type;
public class TypeRemapper<T> implements ValueReader<T>, ValueTransformer<T> {
public class TypeRemapper<T> implements ValueReader<T>, ValueWriter<T> {
private final Type<T> type;
public TypeRemapper(Type<T> type) {

2
src/main/java/us/myles/ViaVersion2/api/remapper/ValueCreator.java
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@ -2,7 +2,7 @@ package us.myles.ViaVersion2.api.remapper;
import us.myles.ViaVersion2.api.PacketWrapper;
public abstract class ValueCreator implements ValueTransformer{
public abstract class ValueCreator implements ValueWriter {
public abstract void write(PacketWrapper wrapper);
@Override

16
src/main/java/us/myles/ViaVersion2/api/remapper/ValueTransformer.java
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@ -1,7 +1,19 @@
package us.myles.ViaVersion2.api.remapper;
import us.myles.ViaVersion2.api.PacketWrapper;
import us.myles.ViaVersion2.api.type.Type;
public interface ValueTransformer<T> {
public void write(PacketWrapper writer, T inputValue);
public abstract class ValueTransformer<T1, T2> implements ValueWriter<T1> {
private final Type<T2> outputType;
public ValueTransformer(Type<T2> outputType) {
this.outputType = outputType;
}
public abstract T2 transform(PacketWrapper wrapper, T1 inputValue);
@Override
public void write(PacketWrapper writer, T1 inputValue) {
writer.write(outputType, transform(writer, inputValue));
}
}

7
src/main/java/us/myles/ViaVersion2/api/remapper/ValueWriter.java Normal file
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@ -0,0 +1,7 @@
package us.myles.ViaVersion2.api.remapper;
import us.myles.ViaVersion2.api.PacketWrapper;
public interface ValueWriter<T> {
public void write(PacketWrapper writer, T inputValue);
}

18
src/main/java/us/myles/ViaVersion2/api/type/Type.java
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@ -1,9 +1,13 @@
package us.myles.ViaVersion2.api.type;
import javafx.geometry.Pos;
import lombok.Getter;
import org.bukkit.util.EulerAngle;
import org.bukkit.util.Vector;
import us.myles.ViaVersion2.api.type.types.*;
import us.myles.ViaVersion2.api.type.types.minecraft.EulerAngleType;
import us.myles.ViaVersion2.api.type.types.minecraft.PositionType;
import us.myles.ViaVersion2.api.type.types.minecraft.VectorType;
import us.myles.ViaVersion2.api.util.Position;
import java.util.UUID;
@ -46,17 +50,21 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
/* Special Types */
public static final Type<Void> NOTHING = new VoidType(); // This is purely used for remapping.
/* MC Types */
public static final Type<Position> POSITION = new PositionType(); // This is purely used for remapping.
public static final Type<Position> POSITION = new PositionType();
public static final Type<EulerAngle> ROTATION = new EulerAngleType();
public static final Type<Vector> VECTOR = new VectorType();
public static final Type<Object> ITEM = null; // TODO
/* Actual Class */
private final Class<T> outputClass;
private final Class<? super T> outputClass;
private final String typeName;
public Type(Class<T> outputClass) {
public Type(Class<? super T> outputClass) {
this(outputClass.getSimpleName(), outputClass);
}
public Type(String typeName, Class<T> outputClass) {
public Type(String typeName, Class<? super T> outputClass) {
this.outputClass = outputClass;
this.typeName = typeName;
}

28
src/main/java/us/myles/ViaVersion2/api/type/types/minecraft/EulerAngleType.java Normal file
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@ -0,0 +1,28 @@
package us.myles.ViaVersion2.api.type.types.minecraft;
import io.netty.buffer.ByteBuf;
import org.bukkit.util.EulerAngle;
import org.bukkit.util.Vector;
import us.myles.ViaVersion2.api.type.Type;
public class EulerAngleType extends Type<EulerAngle> {
public EulerAngleType() {
super(EulerAngle.class);
}
@Override
public EulerAngle read(ByteBuf buffer) {
float x = Type.FLOAT.read(buffer);
float y = Type.FLOAT.read(buffer);
float z = Type.FLOAT.read(buffer);
return new EulerAngle(x, y, z);
}
@Override
public void write(ByteBuf buffer, EulerAngle object) {
Type.FLOAT.write(buffer, (float) object.getX());
Type.FLOAT.write(buffer, (float) object.getY());
Type.FLOAT.write(buffer, (float) object.getZ());
}
}

2
src/main/java/us/myles/ViaVersion2/api/type/types/PositionType.java → src/main/java/us/myles/ViaVersion2/api/type/types/minecraft/PositionType.java
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@ -1,4 +1,4 @@
package us.myles.ViaVersion2.api.type.types;
package us.myles.ViaVersion2.api.type.types.minecraft;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion2.api.type.Type;

27
src/main/java/us/myles/ViaVersion2/api/type/types/minecraft/VectorType.java Normal file
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@ -0,0 +1,27 @@
package us.myles.ViaVersion2.api.type.types.minecraft;
import io.netty.buffer.ByteBuf;
import org.bukkit.util.Vector;
import us.myles.ViaVersion2.api.type.Type;
public class VectorType extends Type<Vector> {
public VectorType() {
super(Vector.class);
}
@Override
public Vector read(ByteBuf buffer) {
int x = Type.INT.read(buffer);
int y = Type.INT.read(buffer);
int z = Type.INT.read(buffer);
return new Vector(x, y, z);
}
@Override
public void write(ByteBuf buffer, Vector object) {
Type.INT.write(buffer, object.getBlockX());
Type.INT.write(buffer, object.getBlockY());
Type.INT.write(buffer, object.getBlockZ());
}
}