ViaVersion/common/src/main/java/com/viaversion/viaversion/protocols/protocol1_13to1_12_2/packets/EntityPackets.java

136 lines
6.2 KiB
Java

/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2021 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.viaversion.viaversion.protocols.protocol1_13to1_12_2.packets;
import com.viaversion.viaversion.api.minecraft.entities.Entity1_13Types;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
import com.viaversion.viaversion.api.protocol.remapper.PacketRemapper;
import com.viaversion.viaversion.api.type.Type;
import com.viaversion.viaversion.api.type.types.version.Types1_12;
import com.viaversion.viaversion.api.type.types.version.Types1_13;
import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ClientboundPackets1_12_1;
import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.Protocol1_13To1_12_2;
import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.metadata.MetadataRewriter1_13To1_12_2;
public class EntityPackets {
public static void register(Protocol1_13To1_12_2 protocol) {
MetadataRewriter1_13To1_12_2 metadataRewriter = protocol.get(MetadataRewriter1_13To1_12_2.class);
protocol.registerClientbound(ClientboundPackets1_12_1.SPAWN_ENTITY, new PacketRemapper() {
@Override
public void registerMap() {
map(Type.VAR_INT); // 0 - Entity id
map(Type.UUID); // 1 - UUID
map(Type.BYTE); // 2 - Type
map(Type.DOUBLE); // 3 - X
map(Type.DOUBLE); // 4 - Y
map(Type.DOUBLE); // 5 - Z
map(Type.BYTE); // 6 - Pitch
map(Type.BYTE); // 7 - Yaw
map(Type.INT); // 8 - Data
// Track Entity
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
int entityId = wrapper.get(Type.VAR_INT, 0);
byte type = wrapper.get(Type.BYTE, 0);
Entity1_13Types.EntityType entType = Entity1_13Types.getTypeFromId(type, true);
if (entType != null) {
if (entType.is(Entity1_13Types.EntityType.FALLING_BLOCK)) {
int oldId = wrapper.get(Type.INT, 0);
int combined = (((oldId & 4095) << 4) | (oldId >> 12 & 15));
wrapper.set(Type.INT, 0, WorldPackets.toNewId(combined));
}
// Fix ItemFrame hitbox
if (entType.is(Entity1_13Types.EntityType.ITEM_FRAME)) {
int data = wrapper.get(Type.INT, 0);
switch (data) {
// South
case 0:
data = 3;
break;
// West
case 1:
data = 4;
break;
// North is the same
// East
case 3:
data = 5;
break;
}
wrapper.set(Type.INT, 0, data);
// Register Type ID
wrapper.user().getEntityTracker(Protocol1_13To1_12_2.class).addEntity(entityId, entType);
}
}
}
});
}
});
protocol.registerClientbound(ClientboundPackets1_12_1.SPAWN_MOB, new PacketRemapper() {
@Override
public void registerMap() {
map(Type.VAR_INT); // 0 - Entity ID
map(Type.UUID); // 1 - Entity UUID
map(Type.VAR_INT); // 2 - Entity Type
map(Type.DOUBLE); // 3 - X
map(Type.DOUBLE); // 4 - Y
map(Type.DOUBLE); // 5 - Z
map(Type.BYTE); // 6 - Yaw
map(Type.BYTE); // 7 - Pitch
map(Type.BYTE); // 8 - Head Pitch
map(Type.SHORT); // 9 - Velocity X
map(Type.SHORT); // 10 - Velocity Y
map(Type.SHORT); // 11 - Velocity Z
map(Types1_12.METADATA_LIST, Types1_13.METADATA_LIST); // 12 - Metadata
handler(metadataRewriter.trackerAndRewriterHandler(Types1_13.METADATA_LIST));
}
});
protocol.registerClientbound(ClientboundPackets1_12_1.SPAWN_PLAYER, new PacketRemapper() {
@Override
public void registerMap() {
map(Type.VAR_INT); // 0 - Entity ID
map(Type.UUID); // 1 - Player UUID
map(Type.DOUBLE); // 2 - X
map(Type.DOUBLE); // 3 - Y
map(Type.DOUBLE); // 4 - Z
map(Type.BYTE); // 5 - Yaw
map(Type.BYTE); // 6 - Pitch
map(Types1_12.METADATA_LIST, Types1_13.METADATA_LIST); // 7 - Metadata
handler(metadataRewriter.trackerAndRewriterHandler(Types1_13.METADATA_LIST, Entity1_13Types.EntityType.PLAYER));
}
});
metadataRewriter.registerRemoveEntities(ClientboundPackets1_12_1.DESTROY_ENTITIES);
metadataRewriter.registerMetadataRewriter(ClientboundPackets1_12_1.ENTITY_METADATA, Types1_12.METADATA_LIST, Types1_13.METADATA_LIST);
}
}