Code/net/minecraft/server/commands/SetSpawnCommand.java

package net.minecraft.server.commands;

import com.mojang.brigadier.CommandDispatcher;
import com.mojang.brigadier.context.CommandContext;
import java.util.Collection;
import java.util.Collections;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.Commands;
import net.minecraft.commands.arguments.AngleArgument;
import net.minecraft.commands.arguments.EntityArgument;
import net.minecraft.commands.arguments.coordinates.BlockPosArgument;
import net.minecraft.core.BlockPos;
import net.minecraft.network.chat.Component;
import net.minecraft.resources.ResourceKey;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.level.Level;

public class SetSpawnCommand {
    public static void register(CommandDispatcher<CommandSourceStack> p_138644_) {
        p_138644_.register(
            Commands.literal("spawnpoint")
                .requires(p_138648_ -> p_138648_.hasPermission(2))
                .executes(
                    p_274828_ -> setSpawn(
                        p_274828_.getSource(),
                        Collections.singleton(p_274828_.getSource().getPlayerOrException()),
                        BlockPos.containing(p_274828_.getSource().getPosition()),
                        0.0F
                    )
                )
                .then(
                    Commands.argument("targets", EntityArgument.players())
                        .executes(
                            p_274829_ -> setSpawn(
                                p_274829_.getSource(),
                                EntityArgument.getPlayers(p_274829_, "targets"),
                                BlockPos.containing(p_274829_.getSource().getPosition()),
                                0.0F
                            )
                        )
                        .then(
                            Commands.argument("pos", BlockPosArgument.blockPos())
                                .executes(
                                    p_138655_ -> setSpawn(
                                        p_138655_.getSource(),
                                        EntityArgument.getPlayers(p_138655_, "targets"),
                                        BlockPosArgument.getSpawnablePos(p_138655_, "pos"),
                                        0.0F
                                    )
                                )
                                .then(
                                    Commands.argument("angle", AngleArgument.angle())
                                        .executes(
                                            p_138646_ -> setSpawn(
                                                p_138646_.getSource(),
                                                EntityArgument.getPlayers(p_138646_, "targets"),
                                                BlockPosArgument.getSpawnablePos(p_138646_, "pos"),
                                                AngleArgument.getAngle(p_138646_, "angle")
                                            )
                                        )
                                )
                        )
                )
        );
    }

    private static int setSpawn(CommandSourceStack p_138650_, Collection<ServerPlayer> p_138651_, BlockPos p_138652_, float p_138653_) {
        ResourceKey<Level> resourcekey = p_138650_.getLevel().dimension();

        for (ServerPlayer serverplayer : p_138651_) {
            serverplayer.setRespawnPosition(new ServerPlayer.RespawnConfig(resourcekey, p_138652_, p_138653_, true), false);
        }

        String s = resourcekey.location().toString();
        if (p_138651_.size() == 1) {
            p_138650_.sendSuccess(
                () -> Component.translatable(
                    "commands.spawnpoint.success.single",
                    p_138652_.getX(),
                    p_138652_.getY(),
                    p_138652_.getZ(),
                    p_138653_,
                    s,
                    p_138651_.iterator().next().getDisplayName()
                ),
                true
            );
        } else {
            p_138650_.sendSuccess(
                () -> Component.translatable(
                    "commands.spawnpoint.success.multiple", p_138652_.getX(), p_138652_.getY(), p_138652_.getZ(), p_138653_, s, p_138651_.size()
                ),
                true
            );
        }

        return p_138651_.size();
    }
}