Shuttle Launch Cleared for lift off

Author: kb122215

booleans-and-conditionals/studio/data-variables-conditionals.js

@@ -1,15 +1,68 @@
 // Initialize Variables below
+let date = "Monday 2019-03-18";
+let time = "10:05:34 AM";
+let astronautCount = 7;
+let astronautStatus = "ready";
+let averageAstronautMassKg = 80.7;
+let crewMassKg = astronautCount * averageAstronautMassKg;
+let fuelMassKg = 760000;
+let shuttleMassKg = 74842.31;
+let totalMassKg = crewMassKg + fuelMassKg + shuttleMassKg;
+let maximumMassLimit = 850000;
+let fuelTempCelsius = -225;
+let minimumFuelTemp = -300;
+let maximumFuelTemp = -150;
+let fuelLevel = "100%";
+let weatherStatus = "clear";
+let prepareForLiftOff = true;
 
 // add logic below to verify total number of astronauts for shuttle launch does not exceed 7
-
+let isClearedForLiftOff = true;
+if (astronautCount > 7) {
+  isClearedForLiftOff = false;
+  console.log("Astronaut count exceeds limit.");
+}
 // add logic below to verify all astronauts are ready
-
+if (astronautStatus !== "ready") {
+  isClearedForLiftOff = false;
+  console.log("Astronaut status not ready");
+}
 // add logic below to verify the total mass does not exceed the maximum limit of 850000
+if (totalMassKg >= maximumMassLimit) {
+  isClearedForLiftOff = false;
+  console.log("Total mass exceeds maximum mass limit.");
+}
 
 // add logic below to verify the fuel temperature is within the appropriate range of -150 and -300
+if (fuelTempCelsius < minimumFuelTemp || fuelTempCelsius > maximumFuelTemp) {
+  isClearedForLiftOff = false;
+  console.log("Fuel temperature out of acceptable range.");
+}
 
 // add logic below to verify the fuel level is at 100%
+if (fuelLevel !== "100%") {
+  isClearedForLiftOff = false;
+  console.log("Fuel level not at 100%.");
+}
 
 // add logic below to verify the weather status is clear
-
+if (weatherStatus !== "clear") {
+  isClearedForLiftOff = false;
+  console.log("Weather status not clear.");
+}
 // Verify shuttle launch can proceed based on above conditions
+if (isClearedForLiftOff && prepareForLiftOff) {
+  console.log("All systems are a go! Initiating space shuttle launch sequence.");
+  console.log("Date:", date);
+  console.log("Time:", time);
+  console.log("Astronaut Count:", astronautCount);
+  console.log("Crew Mass (kg):", crewMassKg);
+  console.log("Fuel mass (kg):", fuelMassKg);
+  console.log("Shuttle Mass (kg):", shuttleMassKg);
+  console.log("Total Mass (kg):", totalMassKg);
+  console.log("Fuel Temperatture (Celsius):", fuelTempCelsius);
+  console.log("Weather Status:", weatherStatus);
+  console.log("Have a safe trip astronauts!");
+} else {
+  console.log("Launch operations aborted.");
+}