mirror of https://github.com/GeyserMC/Geyser.git
69 lines
3.2 KiB
Java
69 lines
3.2 KiB
Java
/*
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* Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.geyser.translator.protocol.java.entity.player;
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import com.github.steveice10.mc.protocol.packet.ingame.clientbound.entity.player.ClientboundPlayerLookAtPacket;
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import com.nukkitx.math.vector.Vector3f;
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import org.geysermc.geyser.session.GeyserSession;
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import org.geysermc.geyser.translator.protocol.PacketTranslator;
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import org.geysermc.geyser.translator.protocol.Translator;
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import org.geysermc.geyser.util.MathUtils;
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@Translator(packet = ClientboundPlayerLookAtPacket.class)
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public class JavaPlayerLookAtTranslator extends PacketTranslator<ClientboundPlayerLookAtPacket> {
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@Override
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public void translate(GeyserSession session, ClientboundPlayerLookAtPacket packet) {
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var targetPosition = targetPosition(session, packet);
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var selfPosition = session.getPlayerEntity().getPosition();
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var xDelta = targetPosition.getX() - selfPosition.getX();
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var yDelta = targetPosition.getY() - selfPosition.getY();
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var zDelta = targetPosition.getZ() - selfPosition.getZ();
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var sqrt = Math.sqrt(xDelta * xDelta + zDelta * zDelta);
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var yaw = MathUtils.wrapDegrees(-Math.toDegrees(Math.atan2(yDelta, sqrt)));
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var pitch = MathUtils.wrapDegrees(Math.toDegrees(Math.atan2(zDelta, xDelta)) - 90.0);
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var self = session.getPlayerEntity();
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// headYaw is also set to yaw in this packet
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self.updateRotation(yaw, pitch, yaw, self.isOnGround());
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}
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public Vector3f targetPosition(GeyserSession session, ClientboundPlayerLookAtPacket packet) {
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if (packet.getTargetEntityOrigin() != null) {
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var entityId = packet.getTargetEntityId();
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var target = session.getEntityCache().getEntityByJavaId(entityId);
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if (target != null) {
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return switch (packet.getTargetEntityOrigin()) {
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case FEET -> target.getPosition();
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case EYES -> target.getPosition().add(0, target.getBoundingBoxHeight(), 0);
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};
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}
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}
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return Vector3f.from(packet.getX(), packet.getY(), packet.getZ());
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}
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}
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