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

package net.minecraft.server.commands;

import com.mojang.brigadier.CommandDispatcher;
import com.mojang.brigadier.arguments.DoubleArgumentType;
import com.mojang.brigadier.arguments.FloatArgumentType;
import com.mojang.brigadier.arguments.IntegerArgumentType;
import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
import java.util.Locale;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.Commands;
import net.minecraft.commands.arguments.coordinates.Vec2Argument;
import net.minecraft.network.chat.Component;
import net.minecraft.util.Mth;
import net.minecraft.world.level.border.WorldBorder;
import net.minecraft.world.phys.Vec2;

public class WorldBorderCommand {
    private static final SimpleCommandExceptionType ERROR_SAME_CENTER = new SimpleCommandExceptionType(Component.translatable("commands.worldborder.center.failed"));
    private static final SimpleCommandExceptionType ERROR_SAME_SIZE = new SimpleCommandExceptionType(Component.translatable("commands.worldborder.set.failed.nochange"));
    private static final SimpleCommandExceptionType ERROR_TOO_SMALL = new SimpleCommandExceptionType(Component.translatable("commands.worldborder.set.failed.small"));
    private static final SimpleCommandExceptionType ERROR_TOO_BIG = new SimpleCommandExceptionType(
        Component.translatable("commands.worldborder.set.failed.big", 5.999997E7F)
    );
    private static final SimpleCommandExceptionType ERROR_TOO_FAR_OUT = new SimpleCommandExceptionType(
        Component.translatable("commands.worldborder.set.failed.far", 2.9999984E7)
    );
    private static final SimpleCommandExceptionType ERROR_SAME_WARNING_TIME = new SimpleCommandExceptionType(Component.translatable("commands.worldborder.warning.time.failed"));
    private static final SimpleCommandExceptionType ERROR_SAME_WARNING_DISTANCE = new SimpleCommandExceptionType(
        Component.translatable("commands.worldborder.warning.distance.failed")
    );
    private static final SimpleCommandExceptionType ERROR_SAME_DAMAGE_BUFFER = new SimpleCommandExceptionType(Component.translatable("commands.worldborder.damage.buffer.failed"));
    private static final SimpleCommandExceptionType ERROR_SAME_DAMAGE_AMOUNT = new SimpleCommandExceptionType(Component.translatable("commands.worldborder.damage.amount.failed"));

    public static void register(CommandDispatcher<CommandSourceStack> p_139247_) {
        p_139247_.register(
            Commands.literal("worldborder")
                .requires(p_139268_ -> p_139268_.hasPermission(2))
                .then(
                    Commands.literal("add")
                        .then(
                            Commands.argument("distance", DoubleArgumentType.doubleArg(-5.999997E7F, 5.999997E7F))
                                .executes(
                                    p_390131_ -> setSize(
                                        p_390131_.getSource(),
                                        p_390131_.getSource().getLevel().getWorldBorder().getSize() + DoubleArgumentType.getDouble(p_390131_, "distance"),
                                        0L
                                    )
                                )
                                .then(
                                    Commands.argument("time", IntegerArgumentType.integer(0))
                                        .executes(
                                            p_390130_ -> setSize(
                                                p_390130_.getSource(),
                                                p_390130_.getSource().getLevel().getWorldBorder().getSize() + DoubleArgumentType.getDouble(p_390130_, "distance"),
                                                p_390130_.getSource().getLevel().getWorldBorder().getLerpRemainingTime()
                                                    + IntegerArgumentType.getInteger(p_390130_, "time") * 1000L
                                            )
                                        )
                                )
                        )
                )
                .then(
                    Commands.literal("set")
                        .then(
                            Commands.argument("distance", DoubleArgumentType.doubleArg(-5.999997E7F, 5.999997E7F))
                                .executes(p_139286_ -> setSize(p_139286_.getSource(), DoubleArgumentType.getDouble(p_139286_, "distance"), 0L))
                                .then(
                                    Commands.argument("time", IntegerArgumentType.integer(0))
                                        .executes(
                                            p_139284_ -> setSize(
                                                p_139284_.getSource(),
                                                DoubleArgumentType.getDouble(p_139284_, "distance"),
                                                IntegerArgumentType.getInteger(p_139284_, "time") * 1000L
                                            )
                                        )
                                )
                        )
                )
                .then(
                    Commands.literal("center")
                        .then(
                            Commands.argument("pos", Vec2Argument.vec2())
                                .executes(p_139282_ -> setCenter(p_139282_.getSource(), Vec2Argument.getVec2(p_139282_, "pos")))
                        )
                )
                .then(
                    Commands.literal("damage")
                        .then(
                            Commands.literal("amount")
                                .then(
                                    Commands.argument("damagePerBlock", FloatArgumentType.floatArg(0.0F))
                                        .executes(p_139280_ -> setDamageAmount(p_139280_.getSource(), FloatArgumentType.getFloat(p_139280_, "damagePerBlock")))
                                )
                        )
                        .then(
                            Commands.literal("buffer")
                                .then(
                                    Commands.argument("distance", FloatArgumentType.floatArg(0.0F))
                                        .executes(p_139278_ -> setDamageBuffer(p_139278_.getSource(), FloatArgumentType.getFloat(p_139278_, "distance")))
                                )
                        )
                )
                .then(Commands.literal("get").executes(p_139276_ -> getSize(p_139276_.getSource())))
                .then(
                    Commands.literal("warning")
                        .then(
                            Commands.literal("distance")
                                .then(
                                    Commands.argument("distance", IntegerArgumentType.integer(0))
                                        .executes(p_139266_ -> setWarningDistance(p_139266_.getSource(), IntegerArgumentType.getInteger(p_139266_, "distance")))
                                )
                        )
                        .then(
                            Commands.literal("time")
                                .then(
                                    Commands.argument("time", IntegerArgumentType.integer(0))
                                        .executes(p_139249_ -> setWarningTime(p_139249_.getSource(), IntegerArgumentType.getInteger(p_139249_, "time")))
                                )
                        )
                )
        );
    }

    private static int setDamageBuffer(CommandSourceStack p_139257_, float p_139258_) throws CommandSyntaxException {
        WorldBorder worldborder = p_139257_.getServer().overworld().getWorldBorder();
        if (worldborder.getDamageSafeZone() == p_139258_) {
            throw ERROR_SAME_DAMAGE_BUFFER.create();
        } else {
            worldborder.setDamageSafeZone(p_139258_);
            p_139257_.sendSuccess(() -> Component.translatable("commands.worldborder.damage.buffer.success", String.format(Locale.ROOT, "%.2f", p_139258_)), true);
            return (int)p_139258_;
        }
    }

    private static int setDamageAmount(CommandSourceStack p_139270_, float p_139271_) throws CommandSyntaxException {
        WorldBorder worldborder = p_139270_.getServer().overworld().getWorldBorder();
        if (worldborder.getDamagePerBlock() == p_139271_) {
            throw ERROR_SAME_DAMAGE_AMOUNT.create();
        } else {
            worldborder.setDamagePerBlock(p_139271_);
            p_139270_.sendSuccess(() -> Component.translatable("commands.worldborder.damage.amount.success", String.format(Locale.ROOT, "%.2f", p_139271_)), true);
            return (int)p_139271_;
        }
    }

    private static int setWarningTime(CommandSourceStack p_139260_, int p_139261_) throws CommandSyntaxException {
        WorldBorder worldborder = p_139260_.getServer().overworld().getWorldBorder();
        if (worldborder.getWarningTime() == p_139261_) {
            throw ERROR_SAME_WARNING_TIME.create();
        } else {
            worldborder.setWarningTime(p_139261_);
            p_139260_.sendSuccess(() -> Component.translatable("commands.worldborder.warning.time.success", p_139261_), true);
            return p_139261_;
        }
    }

    private static int setWarningDistance(CommandSourceStack p_139273_, int p_139274_) throws CommandSyntaxException {
        WorldBorder worldborder = p_139273_.getServer().overworld().getWorldBorder();
        if (worldborder.getWarningBlocks() == p_139274_) {
            throw ERROR_SAME_WARNING_DISTANCE.create();
        } else {
            worldborder.setWarningBlocks(p_139274_);
            p_139273_.sendSuccess(() -> Component.translatable("commands.worldborder.warning.distance.success", p_139274_), true);
            return p_139274_;
        }
    }

    private static int getSize(CommandSourceStack p_139251_) {
        double d0 = p_139251_.getServer().overworld().getWorldBorder().getSize();
        p_139251_.sendSuccess(() -> Component.translatable("commands.worldborder.get", String.format(Locale.ROOT, "%.0f", d0)), false);
        return Mth.floor(d0 + 0.5);
    }

    private static int setCenter(CommandSourceStack p_139263_, Vec2 p_139264_) throws CommandSyntaxException {
        WorldBorder worldborder = p_139263_.getServer().overworld().getWorldBorder();
        if (worldborder.getCenterX() == p_139264_.x && worldborder.getCenterZ() == p_139264_.y) {
            throw ERROR_SAME_CENTER.create();
        } else if (!(Math.abs(p_139264_.x) > 2.9999984E7) && !(Math.abs(p_139264_.y) > 2.9999984E7)) {
            worldborder.setCenter(p_139264_.x, p_139264_.y);
            p_139263_.sendSuccess(
                () -> Component.translatable(
                    "commands.worldborder.center.success",
                    String.format(Locale.ROOT, "%.2f", p_139264_.x),
                    String.format(Locale.ROOT, "%.2f", p_139264_.y)
                ),
                true
            );
            return 0;
        } else {
            throw ERROR_TOO_FAR_OUT.create();
        }
    }

    private static int setSize(CommandSourceStack p_139253_, double p_139254_, long p_139255_) throws CommandSyntaxException {
        WorldBorder worldborder = p_139253_.getServer().overworld().getWorldBorder();
        double d0 = worldborder.getSize();
        if (d0 == p_139254_) {
            throw ERROR_SAME_SIZE.create();
        } else if (p_139254_ < 1.0) {
            throw ERROR_TOO_SMALL.create();
        } else if (p_139254_ > 5.999997E7F) {
            throw ERROR_TOO_BIG.create();
        } else {
            if (p_139255_ > 0L) {
                worldborder.lerpSizeBetween(d0, p_139254_, p_139255_);
                if (p_139254_ > d0) {
                    p_139253_.sendSuccess(
                        () -> Component.translatable(
                            "commands.worldborder.set.grow", String.format(Locale.ROOT, "%.1f", p_139254_), Long.toString(p_139255_ / 1000L)
                        ),
                        true
                    );
                } else {
                    p_139253_.sendSuccess(
                        () -> Component.translatable(
                            "commands.worldborder.set.shrink", String.format(Locale.ROOT, "%.1f", p_139254_), Long.toString(p_139255_ / 1000L)
                        ),
                        true
                    );
                }
            } else {
                worldborder.setSize(p_139254_);
                p_139253_.sendSuccess(() -> Component.translatable("commands.worldborder.set.immediate", String.format(Locale.ROOT, "%.1f", p_139254_)), true);
            }

            return (int)(p_139254_ - d0);
        }
    }
}