#include <iostream>
#include <string>

using namespace std;

int main() {
    // Is the room locked
    bool locked=true;

    // Does the player have the key.
    bool key=false;

    // Player's command
    string command;

    do {
        cout << "Enter in a command: ";
        getline(cin,command);

        //Convert to lowercase.
        for(int i=0; i<command.length(); i++)
            command[i]=tolower(command[i]);

    command[0]=toupper(command[0]);

        // If the player looks at the room.
        if(command=="look") {
            if(key==false)
                cout << "The door is locked and there is a key on the table." << endl;
            else cout << "The door is locked." << endl;
        }

        if(command=="get key") {
            if(key==false) {
                cout << "You now have the key." << endl;
                key=true;
            }
            else cout << "You already have the key." << endl;
        }

        if(command=="open door") {
            if(key==false)
                cout << "Key is needed to open door." << endl;
            else {
                cout << "Door is now open." << endl;
                cout << "You win!" << endl;
                locked=false;
            }
        }

    }while(locked && command!="quit");

    return 0;
}