import { world, system } from "@minecraft/server"; 
import { ModalFormData } from "@minecraft/server-ui"; 
 
function calUi(player) { 
    let form = new ModalFormData(); 
    form.title(`Калькулятор`); 
 
    let working = ["+", "-", "/", "*"]; 
 
    form.textField(`Первое число`, `100..`); 
    form.dropdown(`Действие`, working); 
    form.textField(`Второе число`, `100..`); 
 
    form.show(player).then(response => { 
        if (response.isCanceled) return; 
 
        let firstNumber = parseFloat(response.formValues[0]); 
        let operation = working[response.formValues[1]]; 
        let secondNumber = parseFloat(response.formValues[2]); 
 
        let result; 
 
        switch (operation) { 
            case "+": result = firstNumber + secondNumber; break; 
            case "-": result = firstNumber - secondNumber; break; 
            case "/": result = firstNumber / secondNumber; break; 
            case "*": result = firstNumber * secondNumber; break; 
            default: result = "Неизвестная операция"; 
        } 
 
        player.sendMessage(`Результат: ${result}`); 
    }); 
} 
 
system.runInterval(() => { 
    for (let player of world.getPlayers()) { 
        if (player.hasTag("calculate")) { 
            system.run(() => { 
                calUi(player); 
                player.runCommandAsync(`tag @s remove calculate`); 
            }); 
        } 
    } 
}, 20);