jsbootcamp/exercise_6.js

let startfuel = 0;
let astronauts = 0;
let altitude = 0;
let input = require('readline-sync');


while (true) {
	startfuel = input.question("Enter starting fuel level: ");
	if (startfuel >= 5_000 && startfuel < 30_000 && !isNaN(startfuel)) {
		break;
	}
}

while (true) {
	astronauts = input.question("Enter number of astronauts: ");
	astronauts = Number(astronauts);
	if (astronauts > 0 && astronauts <= 7 && !isNaN(astronauts) && Number.isInteger(Number(astronauts))) {
		break;
	}
}

/*
// ook mogelijk
while (true) {
	astronauts = input.question("Enter number of astronauts: ");
	astronauts = Number(astronauts);
	if (astronauts < 0) {
		continue;
	}
	if (astronauts > 7)){
		continue;
	}
	if (isNaN(astronauts)){
		continue;
	}
	if (Number.isInteger(Number(astronauts)){
		continue;
	}
	break;
}
*/

while (startfuel - 100 * astronauts >= 0) {
	altitude += 50;
	startfuel -= 100 * astronauts;
}


console.log(`fuellevel: ${startfuel}`);
console.log(`astronauts ${astronauts}`);