package xyz.thewhitedog9487;
import com.mojang.brigadier.Command;
import com.mojang.brigadier.arguments.IntegerArgumentType;
import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
import net.minecraft.commands.Commands;
import net.minecraft.server.commands.TeleportCommand;
import net.minecraft.server.permissions.PermissionCheck;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.commands.arguments.EntityArgument;
import net.minecraft.commands.arguments.coordinates.Vec2Argument;
import net.minecraft.world.entity.Entity;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.network.chat.Component;
import net.minecraft.core.BlockPos;
import net.minecraft.world.phys.Vec2;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.chunk.status.ChunkStatus;
import net.minecraft.world.phys.Vec3;
import org.jspecify.annotations.Nullable;
import module java.base;
import static net.minecraft.commands.Commands.argument;
import static net.minecraft.commands.Commands.literal;
import static net.minecraft.world.level.levelgen.Heightmap.Types.MOTION_BLOCKING_NO_LEAVES;
import static xyz.thewhitedog9487.ResourceReloaderListener.*;
public class CommandRegister {
/**
* 随机数生成器
*/
final static SplittableRandom SR = new SplittableRandom();
/**
* 传送后用于生成保护平台的方块
*/
final static Block TargetBlock = Blocks.GLASS;
/**
* 传送后会被 {@link CommandRegister#TargetBlock} 替换掉的方块
*
* 替换中心：被传送目标脚下方块
*
* 替换范围：替换中心周围半径为一的正方形区域
*/
final static Set ReplaceToTargetBlock = Set.of(
Blocks.AIR,
Blocks.VOID_AIR,
Blocks.CAVE_AIR,
Blocks.WATER,
Blocks.LAVA,
Blocks.SHORT_GRASS,
Blocks.VINE );
/**
* 世界边界
*
* @see Minecraft Wiki (中文)
* @see Minecraft Wiki (English)
*/
final static Integer WorldBorder = (int) 2.9e7;
/**
* 执行命令所需权限等级
* @see TeleportCommand
* @see Commands
* @see Minecraft Wiki (中文)
* @see Minecraft Wiki (English)
*/
final static PermissionCheck PermissionLevel = Commands.LEVEL_GAMEMASTERS;
/**
* 在传送之前记录当前位置，以支持传送回去
*/
static Map OldPositions = new HashMap<>();
/**
* 命令执行失败时的返回值
* @see Minecraft Wiki (中文)
* @see Minecraft Wiki (English)
*/
final static int CommandExecuteFailure = 0;
/**
* 使用Fabric API向游戏内注册命令
* @param Name 根命令名
*
* @see Fabric Docs (中文)
* @see Fabric Wiki (中文)
* @see Fabric Docs (English)
* @see Fabric Wiki (English)
*/
public static void Register(String Name){
CommandRegistrationCallback.EVENT
.register((dispatcher, registryAccess, environment) ->{
dispatcher.register(literal(Name)
// /rtp
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),null,null, null, null, null))
// /rtp back
.then(literal("back")
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> TeleportBack(
context.getSource(), null)))
// /rtp back
.then(literal("back")
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> TeleportBack(
context.getSource(),
EntityArgument.getEntity(context,CommandArgumentName_Target)))))
// /rtp back
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(literal("back")
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> TeleportBack(
context.getSource(),
EntityArgument.getEntity(context,CommandArgumentName_Target)))))
// /rtp
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
null,
null,
null,
null)))
// /rtp
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
null,
EntityArgument.getEntity(context,CommandArgumentName_Target),
null,
null,
null)))
// /rtp
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
EntityArgument.getEntity(context,CommandArgumentName_Target),
null,
null,
null))))
// /rtp
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
EntityArgument.getEntity(context,CommandArgumentName_Target),
null,
null,
null))))
// // /rtp
// .then(argument("Radius(半径)", LongArgumentType.longArg())
// .then(argument("Origin(随机中心)",EntityArgumentType.player())
// .requires(Commands.hasPermission(PermissionLevel))
// .executes(context -> execute_command_origin(
// context.getSource(),
// LongArgumentType.getLong(context, "Radius(半径)"),
// null,
// EntityArgumentType.getEntity(context,"Origin(随机中心)")))))
// /rtp
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.then(argument(CommandArgumentName_OriginPosition, Vec2Argument.vec2())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
null,
Vec2Argument.getVec2(context,CommandArgumentName_OriginPosition),
null,
null))))
// /rtp
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(argument(CommandArgumentName_OriginEntity, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
EntityArgument.getEntity(context,CommandArgumentName_Target),
new Vec2( (float) EntityArgument.getEntity( context,CommandArgumentName_OriginEntity).position().x,
(float) EntityArgument.getEntity( context,CommandArgumentName_OriginEntity).position().z ),
null,
null)))))
// /rtp
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(argument(CommandArgumentName_OriginPosition, Vec2Argument.vec2())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
EntityArgument.getEntity(context,CommandArgumentName_Target),
Vec2Argument.getVec2(context,CommandArgumentName_OriginPosition),
null,
null)))))
// /rtp
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.then(argument(CommandArgumentName_OriginEntity, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
EntityArgument.getEntity(context,CommandArgumentName_Target),
new Vec2( (float) EntityArgument.getEntity( context,CommandArgumentName_OriginEntity).position().x,
(float) EntityArgument.getEntity( context,CommandArgumentName_OriginEntity).position().z ),
null,
null)))))
// /rtp
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(argument(CommandArgumentName_Radius, IntegerArgumentType.integer(0))
.then(argument(CommandArgumentName_OriginPosition, Vec2Argument.vec2())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
IntegerArgumentType.getInteger(context, CommandArgumentName_Radius),
EntityArgument.getEntity(context,CommandArgumentName_Target),
Vec2Argument.getVec2(context,CommandArgumentName_OriginPosition),
null,
null)))))
// /rtp
.then(argument(CommandArgumentName_RegionFromPosition, Vec2Argument.vec2())
.then(argument(CommandArgumentName_RegionToPosition, Vec2Argument.vec2())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
null,
null,
null,
Vec2Argument.getVec2(context, CommandArgumentName_RegionFromPosition),
Vec2Argument.getVec2(context, CommandArgumentName_RegionToPosition)))))
// /rtp
.then(argument(CommandArgumentName_RegionFromPosition, Vec2Argument.vec2())
.then(argument(CommandArgumentName_RegionToPosition, Vec2Argument.vec2())
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
null,
EntityArgument.getEntity(context,CommandArgumentName_Target),
null,
Vec2Argument.getVec2(context, CommandArgumentName_RegionFromPosition),
Vec2Argument.getVec2(context, CommandArgumentName_RegionToPosition))))))
// /rtp
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.then(argument(CommandArgumentName_RegionFromPosition, Vec2Argument.vec2())
.then(argument(CommandArgumentName_RegionToPosition, Vec2Argument.vec2())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
null,
EntityArgument.getEntity(context,CommandArgumentName_Target),
null,
Vec2Argument.getVec2(context, CommandArgumentName_RegionFromPosition),
Vec2Argument.getVec2(context, CommandArgumentName_RegionToPosition))))))
// /rtp
.then(argument(CommandArgumentName_RegionFromEntity, EntityArgument.entity())
.then(argument(CommandArgumentName_RegionToEntity, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
null,
null,
null,
new Vec2( (float) EntityArgument.getEntity( context,CommandArgumentName_RegionFromEntity).position().x,
(float) EntityArgument.getEntity( context,CommandArgumentName_RegionFromEntity).position().z ),
new Vec2( (float) EntityArgument.getEntity( context,CommandArgumentName_RegionToEntity).position().x,
(float) EntityArgument.getEntity( context,CommandArgumentName_RegionToEntity).position().z ) ) )))
// /rtp
.then(argument(CommandArgumentName_RegionFromEntity, EntityArgument.entity())
.then(argument(CommandArgumentName_RegionToEntity, EntityArgument.entity())
.then(argument(CommandArgumentName_Target, EntityArgument.entity())
.requires(Commands.hasPermission(PermissionLevel))
.executes(context -> ExecuteCommand(
context.getSource(),
null,
EntityArgument.getEntity(context,CommandArgumentName_Target),
null,
new Vec2( (float) EntityArgument.getEntity( context,CommandArgumentName_RegionFromEntity).position().x,
(float) EntityArgument.getEntity( context,CommandArgumentName_RegionFromEntity).position().z ),
new Vec2( (float) EntityArgument.getEntity( context,CommandArgumentName_RegionToEntity).position().x,
(float) EntityArgument.getEntity( context,CommandArgumentName_RegionToEntity).position().z )))))) );});}
/**
* 向游戏内注册命令
*
* 是 {@link CommandRegister#Register(String)} 的包装器
* @see CommandRegister#Register(String)
*/
public static void Register(){
Register("随机传送");
Register("rtp");
}
/**
*
* @param Source 命令执行者
* @param Radius 随机选择的目的坐标距离参数 {@code Origin} 的最大距离
* @param Entity 被传送的实体
* @param Origin 随机选择的目的坐标的中心
* @param RegionFrom 选择随机坐标的范围的起始坐标
* @param RegionTo 选择随机坐标的范围的结束坐标
* @return 命令运行是否成功
*/
static int ExecuteCommand(CommandSourceStack Source, @Nullable Integer Radius, @Nullable Entity Entity, @Nullable Vec2 Origin, @Nullable Vec2 RegionFrom, @Nullable Vec2 RegionTo){
Entity TargetEntity = Entity == null ? Source.getPlayer() : Entity;
/*
↑
Entity TargetEntity = null;
if (TargetEntity == null){
TargetEntity = Source.getPlayer();}
else{
TargetEntity = Entity;}
*/
if (TargetEntity == null) {
Source.sendSuccess(()->{ return Component.translatableWithFallback("error.no_target","不存在被传送目标，由非玩家物体执行命令时请显式指定被传送玩家ID"); }, true);
return CommandExecuteFailure; }
int Coordinate_X = 0;
int Coordinate_Z = 0;
if (RegionFrom == null || RegionTo == null) { // ← 按半径和中心取随机
if (Radius == null) { Radius = (int) (WorldBorder - 1e4); }
// ↑ 远离世界边界
try {
if (Origin == null) {
Coordinate_X = SR.nextInt(-Radius, Radius + 1);
Coordinate_Z = SR.nextInt(-Radius, Radius + 1); }
else {
Coordinate_X = SR.nextInt((int) Origin.x - Radius, (int) Origin.x + Radius + 1);
Coordinate_Z = SR.nextInt((int) Origin.y - Radius, (int) Origin.y + Radius + 1); } }
catch (IllegalArgumentException e) {
// 半径为零
if (Origin == null) {
Source.sendFailure(Component.translatableWithFallback("warning.radius_equal_zero_no_target", "由于你设置的随机半径为0，并且未设置随机中心点坐标，因此什么都不会发生"));
return CommandExecuteFailure; }
else {
Coordinate_X = (int) Origin.x;
Coordinate_Z = (int) Origin.y;
int finalCoordinate_X1 = Coordinate_X;
int finalCoordinate_Z1 = Coordinate_Z;
// ↑ "lambda 表达式中使用的变量应为 final 或有效 final"
Source.sendSuccess(() -> {
return Component.translatableWithFallback("warning.radius_equal_zero", "警告：由于你设置的随机半径为0，因此在选择出合适高度之后将直接把你传送至%d %d", finalCoordinate_X1, finalCoordinate_Z1); }, true); } } }
else { // ← 按范围取随机
Coordinate_X = SR.nextInt( Math.min( (int)RegionFrom.x, (int)RegionTo.x ), Math.max( (int)RegionFrom.x, (int)RegionTo.x ) + 1 );
Coordinate_Z = SR.nextInt( Math.min( (int)RegionFrom.y, (int)RegionTo.y ), Math.max( (int)RegionFrom.y, (int)RegionTo.y ) + 1 ); }
if (Coordinate_X >= WorldBorder){ Coordinate_X = (int) (WorldBorder - 1e4); }
else if (Coordinate_X <= -WorldBorder){ Coordinate_X = (int) (-WorldBorder + 1e4); }
if (Coordinate_Z >= WorldBorder){ Coordinate_Z = (int) (WorldBorder - 1e4); }
else if (Coordinate_Z <= -WorldBorder){ Coordinate_Z = (int) (-WorldBorder + 1e4); }
// ↑ 远离世界边界
Level EntityWorld = TargetEntity.level();
EntityWorld.getChunk(Coordinate_X >> 4, Coordinate_Z >> 4, ChunkStatus.FULL, true);
// ↑ 加载目标区块，不然下面获取到的Coordinate_Y一定是-64
// 按位右移4和除以16在被除数小于0时的结果不一致，一个是向上取整，一个是向下取整
// 因此必须是 >> 4 ，不能是 / 16
int Coordinate_Y = EntityWorld.getHeight(MOTION_BLOCKING_NO_LEAVES, Coordinate_X, Coordinate_Z);
BlockPos.MutableBlockPos BlockPos = new BlockPos.MutableBlockPos();
for (int x = -1; x <= 1; x++) {
for (int z = -1; z <= 1; z++) {
// 如果传送到的位置周围一圈是ReplaceToTargetBlock的方块，将其替换为TargetBlock
BlockPos.set(Coordinate_X - x, Coordinate_Y - 1, Coordinate_Z - z);
var CurrentBlock = EntityWorld.getBlockState(BlockPos).getBlock();
if ( ReplaceToTargetBlock.contains(CurrentBlock) ) {
// 只替换ReplaceToTargetBlock内的方块，其余保留
EntityWorld.setBlockAndUpdate(BlockPos, TargetBlock.defaultBlockState());}}}
// if ( String.valueOf(TargetEntity.getWorld().getBiome(new BlockPos(Math.toIntExact(Coordinate_X), Coordinate_Y, Math.toIntExact(Coordinate_Z))).getKey()).equals("minecraft:the_void") ) {
// Coordinate_Y++;}
OldPositions.put(TargetEntity.getUUID(), TargetEntity.position());
TargetEntity.teleportTo((ServerLevel) EntityWorld,Coordinate_X + 0.5, Coordinate_Y, Coordinate_Z + 0.5, new HashSet<>(), TargetEntity.getYRot(), TargetEntity.getXRot(), false);
int finalCoordinate_X = Coordinate_X;
int finalCoordinate_Z = Coordinate_Z;
// ↑ "lambda 表达式中使用的变量应为 final 或有效 final"
final var FeedbackFallbackString = String.format("已将玩家%s传送到%d %d %d", TargetEntity.getName().getString(), Coordinate_X, Coordinate_Y, Coordinate_Z);
Source.sendSuccess(()->{ return Component.translatableWithFallback("info.success", FeedbackFallbackString, TargetEntity.getName(), finalCoordinate_X, Coordinate_Y, finalCoordinate_Z); },true);
return Command.SINGLE_SUCCESS; }
static int TeleportBack(CommandSourceStack Source, @Nullable Entity TargetEntity) {
TargetEntity = TargetEntity != null ? TargetEntity : Source.getPlayer();
/*
↑
if (TargetEntity == null){
TargetEntity = Source.getPlayer(); }
*/
if (TargetEntity == null) {
Source.sendFailure(Component.translatableWithFallback("error.no_target", "不存在被传送目标，由非玩家物体执行命令时请显式指定被传送玩家ID"));
return CommandExecuteFailure; }
var OldPos = OldPositions.get(TargetEntity.getUUID());
if (OldPos == null) {
Source.sendFailure(Component.translatableWithFallback("error.no_old_position", "%s还未使用过随机传送，因此无法回溯", TargetEntity.getName().getString()));
return CommandExecuteFailure; }
else {
TargetEntity.teleportTo(( ServerLevel) TargetEntity.level(), OldPos.x, OldPos.y, OldPos.z, new HashSet<>(), TargetEntity.getYRot(), TargetEntity.getXRot(), false);
Entity finalTargetEntity = TargetEntity;
// ↑ "lambda 表达式中使用的变量应为 final 或有效 final"
Source.sendSuccess(() -> Component.translatableWithFallback("info.success.back", "已将玩家%s传送回原位置", finalTargetEntity.getName().getString()), true);
return Command.SINGLE_SUCCESS; } }
}