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index.mjs
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index.mjs
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export const buildRocket = (cb) => {
console.log('Building rocket...');
setTimeout(() => {
console.log('Rocket built!');
const rocket = {
altitude: 0,
speed: 0,
engines: [{ isFiring: false }, { isFiring: false }],
addCrew: (crew, addCrewCb) => {
console.log('Adding crew...');
setTimeout(() => {
console.log('Crew ready!');
addCrewCb();
}, 0.5 * 1000);
},
addFuel: (fuel, addFuelCb) => {
console.log('Adding fuel...');
setTimeout(() => {
console.log('Fuel ready!');
addFuelCb();
}, 0.5 * 1000);
},
fireEngine: (num, fireEngineCb) => {
if (!rocket.engines[num].isFiring) {
console.log(`Firing engine ${num}...`);
rocket.engines[num].isFiring = true;
}
setTimeout(() => {
rocket.altitude += 10;
rocket.speed += 700;
console.log(`Altitude ${rocket.altitude}km | Speed ${rocket.speed}km/h`);
fireEngineCb();
}, 0.01 * 1000);
},
stopEngine: (num, stopEngineCb) => {
console.log(`Engine ${num} cut-off...`);
setTimeout(() => {
rocket.engines[num].isFiring = false;
console.log(`Engine ${num} cut-off completed...`);
stopEngineCb();
}, 0.5 * 1000);
},
engineIsFiring: num => rocket.engines[num].isFiring,
runStageSeparation: (num, runStageSeparationCb) => {
console.log(`Running stage ${num} separation...`);
setTimeout(() => {
console.log(`Stage ${num} separation completed...`);
runStageSeparationCb();
}, 1 * 1000);
},
};
cb(null, rocket);
}, 5 * 1000);
};
export const fetchCrew = (cb) => {
console.log('Fetching crew...');
setTimeout(() => {
console.log('Crew ready!');
cb(null, [
{ name: 'Pepito Pérez' },
{ name: 'Manolita Fernández' },
]);
}, 3 * 1000);
};
export const getFuel = (cb) => {
console.log('Getting fuel...');
setTimeout(() => {
console.log('Fuel ready!');
cb(null, {});
}, 1 * 1000);
};
export const bookLaunchPad = (cb) => {
console.log('Booking launch pad...');
setTimeout(() => {
console.log('Launch pad booked!');
cb(null, {
addRocket: (rocket, addRocketCb) => {
console.log('Adding rocket to launch pad...');
setTimeout(() => {
console.log('Added rocket to launch pad!');
addRocketCb();
}, 2 * 1000);
},
});
}, 5 * 1000);
};