mirror of https://github.com/GeyserMC/Geyser.git
175 lines
9.8 KiB
Java
175 lines
9.8 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.level;
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import com.github.steveice10.mc.protocol.data.game.ClientCommand;
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import com.github.steveice10.mc.protocol.data.game.entity.player.GameMode;
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import com.github.steveice10.mc.protocol.data.game.level.notify.EnterCreditsValue;
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import com.github.steveice10.mc.protocol.data.game.level.notify.RainStrengthValue;
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import com.github.steveice10.mc.protocol.data.game.level.notify.RespawnScreenValue;
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import com.github.steveice10.mc.protocol.data.game.level.notify.ThunderStrengthValue;
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import com.github.steveice10.mc.protocol.packet.ingame.clientbound.level.ClientboundGameEventPacket;
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import com.github.steveice10.mc.protocol.packet.ingame.serverbound.ServerboundClientCommandPacket;
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import org.cloudburstmc.math.vector.Vector3f;
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import org.cloudburstmc.protocol.bedrock.data.GameRuleData;
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import org.cloudburstmc.protocol.bedrock.data.LevelEvent;
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import org.cloudburstmc.protocol.bedrock.data.entity.EntityEventType;
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import org.cloudburstmc.protocol.bedrock.packet.*;
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import org.geysermc.geyser.entity.type.player.PlayerEntity;
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import org.geysermc.geyser.session.GeyserSession;
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import org.geysermc.geyser.text.MinecraftLocale;
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import org.geysermc.geyser.translator.inventory.PlayerInventoryTranslator;
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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.EntityUtils;
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@Translator(packet = ClientboundGameEventPacket.class)
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public class JavaGameEventTranslator extends PacketTranslator<ClientboundGameEventPacket> {
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// Strength of rainstorms and thunderstorms is a 0-1 float on Java, while on Bedrock it is a 0-65535 int
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private static final int MAX_STORM_STRENGTH = 65535;
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@Override
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public void translate(GeyserSession session, ClientboundGameEventPacket packet) {
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PlayerEntity entity = session.getPlayerEntity();
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switch (packet.getNotification()) {
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// Yes, START_RAIN and STOP_RAIN are swapped in terms of what they cause the client to do.
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// This is how the Mojang mappings name them, so we go with it
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// It seems Mojang's intent was that START_RAIN would set the rain strength to 0 so that it can then be incremeneted on a gradient by the server
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// The inverse is true for STOP_RAIN
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// This is indeed the behavior of the vanilla server
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// However, it seems most server software (at least Spigot and Paper) did not go along with this
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// As a result many developers use these packets for the opposite of what their names implies
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// Behavior last verified with Java 1.19.4 and Bedrock 1.19.71
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case START_RAIN:
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LevelEventPacket stopRainPacket = new LevelEventPacket();
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stopRainPacket.setType(LevelEvent.STOP_RAINING);
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stopRainPacket.setData(0);
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stopRainPacket.setPosition(Vector3f.ZERO);
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session.sendUpstreamPacket(stopRainPacket);
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session.setRaining(false);
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break;
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case STOP_RAIN:
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LevelEventPacket startRainPacket = new LevelEventPacket();
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startRainPacket.setType(LevelEvent.START_RAINING);
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startRainPacket.setData(MAX_STORM_STRENGTH);
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startRainPacket.setPosition(Vector3f.ZERO);
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session.sendUpstreamPacket(startRainPacket);
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session.setRaining(true);
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break;
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case RAIN_STRENGTH:
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float rainStrength = ((RainStrengthValue) packet.getValue()).getStrength();
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boolean isCurrentlyRaining = rainStrength > 0f;
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LevelEventPacket changeRainPacket = new LevelEventPacket();
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changeRainPacket.setType(isCurrentlyRaining ? LevelEvent.START_RAINING : LevelEvent.STOP_RAINING);
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// This is the rain strength on LevelEventType.START_RAINING, but can be any value on LevelEventType.STOP_RAINING
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changeRainPacket.setData((int) (rainStrength * MAX_STORM_STRENGTH));
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changeRainPacket.setPosition(Vector3f.ZERO);
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session.sendUpstreamPacket(changeRainPacket);
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session.setRaining(isCurrentlyRaining);
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break;
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case THUNDER_STRENGTH:
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// See above, same process
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float thunderStrength = ((ThunderStrengthValue) packet.getValue()).getStrength();
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boolean isCurrentlyThundering = thunderStrength > 0f;
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LevelEventPacket changeThunderPacket = new LevelEventPacket();
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changeThunderPacket.setType(isCurrentlyThundering ? LevelEvent.START_THUNDERSTORM : LevelEvent.STOP_THUNDERSTORM);
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changeThunderPacket.setData((int) (thunderStrength * MAX_STORM_STRENGTH));
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changeThunderPacket.setPosition(Vector3f.ZERO);
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session.sendUpstreamPacket(changeThunderPacket);
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session.setThunder(isCurrentlyThundering);
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break;
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case CHANGE_GAMEMODE:
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GameMode gameMode = (GameMode) packet.getValue();
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SetPlayerGameTypePacket playerGameTypePacket = new SetPlayerGameTypePacket();
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playerGameTypePacket.setGamemode(EntityUtils.toBedrockGamemode(gameMode).ordinal());
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session.sendUpstreamPacket(playerGameTypePacket);
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session.setGameMode(gameMode);
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session.sendAdventureSettings();
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if (session.getPlayerEntity().isOnGround() && gameMode == GameMode.SPECTATOR) {
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// Fix a bug where the player has glitched movement and thinks they are still on the ground
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MovePlayerPacket movePlayerPacket = new MovePlayerPacket();
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movePlayerPacket.setRuntimeEntityId(entity.getGeyserId());
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movePlayerPacket.setPosition(entity.getPosition());
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movePlayerPacket.setRotation(entity.getBedrockRotation());
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movePlayerPacket.setOnGround(false);
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movePlayerPacket.setMode(MovePlayerPacket.Mode.TELEPORT);
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movePlayerPacket.setTeleportationCause(MovePlayerPacket.TeleportationCause.UNKNOWN);
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session.sendUpstreamPacket(movePlayerPacket);
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}
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// Update the crafting grid to add/remove barriers for creative inventory
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PlayerInventoryTranslator.updateCraftingGrid(session, session.getPlayerInventory());
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break;
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case ENTER_CREDITS:
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switch ((EnterCreditsValue) packet.getValue()) {
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case SEEN_BEFORE -> {
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ServerboundClientCommandPacket javaRespawnPacket = new ServerboundClientCommandPacket(ClientCommand.RESPAWN);
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session.sendDownstreamPacket(javaRespawnPacket);
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}
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case FIRST_TIME -> {
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ShowCreditsPacket showCreditsPacket = new ShowCreditsPacket();
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showCreditsPacket.setStatus(ShowCreditsPacket.Status.START_CREDITS);
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showCreditsPacket.setRuntimeEntityId(entity.getGeyserId());
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session.sendUpstreamPacket(showCreditsPacket);
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}
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}
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break;
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case AFFECTED_BY_ELDER_GUARDIAN:
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EntityEventPacket eventPacket = new EntityEventPacket();
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eventPacket.setType(EntityEventType.ELDER_GUARDIAN_CURSE);
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eventPacket.setData(0);
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eventPacket.setRuntimeEntityId(entity.getGeyserId());
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session.sendUpstreamPacket(eventPacket);
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break;
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case ENABLE_RESPAWN_SCREEN:
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GameRulesChangedPacket gamerulePacket = new GameRulesChangedPacket();
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gamerulePacket.getGameRules().add(new GameRuleData<>("doimmediaterespawn",
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packet.getValue() == RespawnScreenValue.IMMEDIATE_RESPAWN));
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session.sendUpstreamPacket(gamerulePacket);
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break;
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case INVALID_BED:
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// Not sent as a proper message? Odd.
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session.sendMessage(MinecraftLocale.getLocaleString("block.minecraft.spawn.not_valid",
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session.locale()));
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break;
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case ARROW_HIT_PLAYER:
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PlaySoundPacket arrowSoundPacket = new PlaySoundPacket();
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arrowSoundPacket.setSound("random.orb");
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arrowSoundPacket.setPitch(0.5f);
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arrowSoundPacket.setVolume(0.5f);
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arrowSoundPacket.setPosition(entity.getPosition());
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session.sendUpstreamPacket(arrowSoundPacket);
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break;
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default:
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break;
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}
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}
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}
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