gemini3703

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package lsk.lsktp;
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import com.mojang.brigadier.context.CommandContext;
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import com.mojang.brigadier.exceptions.CommandSyntaxException;
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import com.mojang.brigadier.exceptions.SimpleCommandExceptionType;
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import net.fabricmc.api.ModInitializer;
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import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
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import net.minecraft.block.BlockState;
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import net.minecraft.block.FluidBlock;
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import net.minecraft.command.argument.DimensionArgumentType;
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import net.minecraft.command.argument.Vec3ArgumentType;
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import net.minecraft.entity.Entity;
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import net.minecraft.server.command.CommandManager;
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import net.minecraft.server.command.ServerCommandSource;
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import net.minecraft.server.world.ServerWorld;
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import net.minecraft.text.Text;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.util.math.Vec3d;
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public class Lsktp implements ModInitializer {
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    private static final SimpleCommandExceptionType INVALID_COORD = new SimpleCommandExceptionType(Text.literal("无效的坐标格式"));
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    @Override
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    public void onInitialize() {
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        CommandRegistrationCallback.EVENT.register((dispatcher, registryAccess, environment) -> {
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            dispatcher.register(CommandManager.literal("lsktp")
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                    .then(CommandManager.argument("pos", Vec3ArgumentType.vec3())
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                            .executes(context -> execute_command(context.getSource(), context))
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                    )
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            );
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        });
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        CommandRegistrationCallback.EVENT.register((dispatcher, registryAccess, environment) -> {
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            dispatcher.register(CommandManager.literal("lsktp")
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                    .then(CommandManager.argument("d", DimensionArgumentType.dimension())
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                            .then(CommandManager.argument("pos", Vec3ArgumentType.vec3())
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                                    .executes(context -> execute(context.getSource(), context))
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                            )
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                    )
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            );
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        });
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    }
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    private static int findSafeY(ServerWorld world, double x, double z) {
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        BlockPos blockPos = new BlockPos((int) x, 0, (int) z);
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        int maxY = world.getTopY(net.minecraft.world.Heightmap.Type.MOTION_BLOCKING, blockPos);
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        int minY = world.getBottomY();
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        // 从高处向下搜索第一个安全的 Y 坐标
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        for (int y = maxY; y >= minY; y--) {
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            BlockPos pos = new BlockPos((int) x, y, (int) z);
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            BlockState above = world.getBlockState(pos.up());
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            BlockState at = world.getBlockState(pos);
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            BlockState below = world.getBlockState(pos.down());
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            // 检查上方是空气，当前位置是固体或流体，下方是固体
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            boolean aboveAir = above.isAir();
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            boolean atSolidOrFluid = !at.isAir() || at.getBlock() instanceof FluidBlock;
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            boolean belowSolid = !below.isAir();
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            if (aboveAir && atSolidOrFluid && belowSolid) {
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                return y + 1; // 返回安全的传送位置（在固体方块上方）
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            }
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        }
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        return minY; // 如果找不到安全位置，返回最低点
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    }
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    //2026.2.10 21:38更新：原版y轴的～竟然不是安全坐标！而是原坐标！
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    static int execute_command(ServerCommandSource source, CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
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        Entity entity = source.getPlayer();
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        if (entity == null) {
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            source.sendError(Text.literal("需玩家执行！"));
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            return 0;
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        }
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        Vec3d pos = Vec3ArgumentType.getVec3(context, "pos");
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        double x = pos.x;
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        double z = pos.z;
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        double y = pos.y;
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        ServerWorld world = source.getWorld();
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/*
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        // 检查 y 是否使用 ~ 符号（通过检查原始输入）
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        String input = context.getInput();
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        String[] parts = input.split(" ");
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        if (parts.length >= 3 && parts[2].equals("~")) {
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            y = findSafeY(world, x, z);
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        } else {
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            y = pos.y;
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        }
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*/
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        entity.teleport(world, x, y, z, new java.util.HashSet<>(), entity.getYaw(), entity.getPitch(), false);
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        source.sendFeedback(() -> Text.literal("传送至 " + String.format("%.2f", x) + ", " + String.format("%.2f", y) + ", " + String.format("%.2f", z)), false);
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        return 1;
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    }
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    private static int execute(ServerCommandSource source, CommandContext<ServerCommandSource> context) throws CommandSyntaxException {
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        Entity player = source.getPlayer();
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        if (player == null) {
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            source.sendError(Text.literal("需玩家执行！"));
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            return 0;
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        }
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        Vec3d pos = Vec3ArgumentType.getVec3(context, "pos");
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        double x = pos.x;
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        double z = pos.z;
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        double y = pos.y;
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        ServerWorld dimension = DimensionArgumentType.getDimensionArgument(context, "d");
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/*
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        // 检查 y 是否使用 ~ 符号（通过检查原始输入）
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        String input = context.getInput();
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        String[] parts = input.split(" ");
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        if (parts.length >= 4 && parts[3].equals("~")) {
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            y = findSafeY(dimension, x, z);
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        } else {
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            y = pos.y;
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        }
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        */
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        player.teleport(dimension, x, y, z, new java.util.HashSet<>(), player.getYaw(), player.getPitch(), false);
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        source.sendFeedback(() -> Text.literal("传送至 " + String.format("%.2f", x) + ", " + String.format("%.2f", y) + ", " + String.format("%.2f", z)), false);
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        return 1;
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    }
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}