Not displaying a chosen selection from a list? - c++

Question

So were being asked to make a game in my C++ class, I took a C++ class awhile ago so I am a little rusty. I remember that you can use arrays and lists?
The point of the game is to choose an army faction, choose the army type, then attack someone. Once I get to the attack part, instead of making a bunch of if statements checking for the chosen faction from the previous menu, could I implement the factions into an array from the beginning of the program and once I get to the attack stage, run through the array and compare the user chosen continent with the continents in the array and just withhold an output that matches?
If someone could post a little code or link to a website that gives an example of something like this it would be greatly appreciated, I want to do it myself, I don't really something fully typed out for me.
#include <iostream>
using namespace std;
int main() {
// Declare variables
int menuInput = 0, continentInput = 0, armyInput = 0, actionInput = 0;
// Intro
cout << "WELCOME TO WAR" << endl;
// Display main menu
do {
cout << "1) Rules" << endl;
cout << "2) Play Game" << endl;
cout << "3) Quit" << endl;
cout << "Menu choice: ";
cin >> menuInput;
// if rules is selected
if (menuInput == 1) {
cout << endl;
cout << "RULES: " << endl;
cout << "1) Choose your player." << endl;
cout << "2) Choose your army type." << endl;
cout << "3) Choose to attack." << endl;
cout << endl;
}
// if game is selected
else if (menuInput == 2) {
cout << endl;
cout << "START" << endl;
// first do while loop, continent choice
do {
cout << "1) North America" << endl;
cout << "2) South America" << endl;
cout << "3) Europe" << endl;
cout << "4) Africa" << endl;
cout << "5) Asia" << endl;
cout << "6) Australia" << endl;
cout << "7) Antartica" << endl;
cout << "Choose your player from the list: ";
cin >> continentInput;
cout << endl;
// invalid display if selection not in range
if (continentInput <= 0 ||continentInput > 7) {
cout << "INVALID" << endl;
cout << endl;
}
} while (continentInput <= 0 || continentInput > 8);
// second do while loop, army type choice
do {
cout << "1) Army (Ground type forces)" << endl;
cout << "2) Navy (Sea type forces)" << endl;
cout << "3) Air Force (Air type forces)" << endl;
cout << "Choose your army type from the list: ";
cin >> armyInput;
cout << endl;
if (armyInput <= 0 || armyInput > 3) {
cout << "INVALID" << endl;
}
} while (armyInput <= 0 || armyInput > 3);
// third do while loop, who to attack
}
else if (menuInput == 3) {
cout << endl;
cout << "GAME OVER" << endl;
}
else {
// display invlaid input if number choice is not in given range
cout << "INAVLID INPUT" << endl;
}
} while (menuInput != 3);
return 0;
}

Answer 1

If you change your user input to a number you can reference an array filled with the choices.
military[x] = { "Army", "Navy" ...};
fromWhere[x] = { "North America", "South" ...};
toKill[x] = { "Whoever has oil" ... };
//get user input.
//toKill[get user input];
//kill with military[get user input];
//kill form fromWhere[get user input];
//do some attack logic
Just a heads up your question is rather vague. Can you clarify what you need. It seems you wish to hash your values and do a quick lookup to avoid string comparison but you don't need to because you are grabbing an int as user input.