Java/JavaEntityAnimationTranslator.java

/*
 * Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @author GeyserMC
 * @link https://github.com/GeyserMC/Geyser
 */

package org.geysermc.connector.network.translators.java.entity;

import com.github.steveice10.mc.protocol.packet.ingame.server.entity.ServerEntityAnimationPacket;
import com.nukkitx.math.vector.Vector3f;
import com.nukkitx.protocol.bedrock.packet.AnimateEntityPacket;
import com.nukkitx.protocol.bedrock.packet.AnimatePacket;
import com.nukkitx.protocol.bedrock.packet.SpawnParticleEffectPacket;
import org.geysermc.connector.entity.Entity;
import org.geysermc.connector.network.session.GeyserSession;
import org.geysermc.connector.network.translators.PacketTranslator;
import org.geysermc.connector.network.translators.Translator;
import org.geysermc.connector.utils.DimensionUtils;

@Translator(packet = ServerEntityAnimationPacket.class)
public class JavaEntityAnimationTranslator extends PacketTranslator<ServerEntityAnimationPacket> {

    @Override
    public void translate(GeyserSession session, ServerEntityAnimationPacket packet) {
        Entity entity;
        if (packet.getEntityId() == session.getPlayerEntity().getEntityId()) {
            entity = session.getPlayerEntity();
        } else {
            entity = session.getEntityCache().getEntityByJavaId(packet.getEntityId());
        }
        if (entity == null)
            return;

        AnimatePacket animatePacket = new AnimatePacket();
        animatePacket.setRuntimeEntityId(entity.getGeyserId());
        switch (packet.getAnimation()) {
            case SWING_ARM:
                animatePacket.setAction(AnimatePacket.Action.SWING_ARM);
                break;
            case EAT_FOOD: // ACTUALLY SWING OFF HAND
                // Use the OptionalPack to trigger the animation
                AnimateEntityPacket offHandPacket = new AnimateEntityPacket();
                offHandPacket.setAnimation("animation.player.attack.rotations.offhand");
                offHandPacket.setNextState("default");
                offHandPacket.setBlendOutTime(0.0f);
                offHandPacket.setStopExpression("query.any_animation_finished");
                offHandPacket.setController("__runtime_controller");
                offHandPacket.getRuntimeEntityIds().add(entity.getGeyserId());

                session.sendUpstreamPacket(offHandPacket);
                return;
            case CRITICAL_HIT:
                animatePacket.setAction(AnimatePacket.Action.CRITICAL_HIT);
                break;
            case ENCHANTMENT_CRITICAL_HIT:
                animatePacket.setAction(AnimatePacket.Action.MAGIC_CRITICAL_HIT); // Unsure if this does anything
                // Spawn custom particle
                SpawnParticleEffectPacket stringPacket = new SpawnParticleEffectPacket();
                stringPacket.setIdentifier("geyseropt:enchanted_hit_multiple");
                stringPacket.setDimensionId(DimensionUtils.javaToBedrock(session.getDimension()));
                stringPacket.setPosition(Vector3f.ZERO);
                stringPacket.setUniqueEntityId(entity.getGeyserId());
                session.sendUpstreamPacket(stringPacket);
                break;
            case LEAVE_BED:
                animatePacket.setAction(AnimatePacket.Action.WAKE_UP);
                break;
            default:
                // Unknown Animation
                return;
        }

        session.sendUpstreamPacket(animatePacket);
    }
}