// This code is just for fun. It requires // a lot more work. #include #include #include using namespace std; // Constants to determine who the victor is, during and after a fight. #define NOBODY_WON 1024 #define YOU_WON 1025 #define ENEMY_WON 1026 // Get a random percentage, // i.e. a number between 1 and 100. // // Implementation: the rand() function is considered to create statistically // unbalanced randomness. Instead the default_random_engine method is // recommended. int get_random_percentage() { // Construct a trivial random generator engine from a time-based seed: static unsigned seed = chrono::system_clock::now().time_since_epoch().count(); static default_random_engine generator(seed); // Create a random number generator (numbers between 1 and 100). uniform_int_distribution distribution(1, 100); // Create and return the random number. return distribution(generator); } // Check to see if someone has been hit. // If no percentage is specified, then // default to a 33% chance. bool has_hit(int percentage_probability = 33) { // 1 in 3 chance of hitting or being hit! if ( percentage_probability >= get_random_percentage() ) { return true; } return false; } // Attack / be attacked. void do_attack ( int* hp, int* enemyhp, int attack, int enemyattack, int hitprobability, int enemyhitprobability, int* victor ) { if (has_hit(hitprobability)) { *hp = *hp - enemyattack; cout << "You attacked the enemy" << endl; } else { cout << "You missed the enemy" << endl; } if (has_hit(enemyhitprobability)) { *enemyhp = *enemyhp - attack; cout << "The enemy attacked" << endl; } else { cout << "The enemy missed" << endl; } cout << "The enemy now has " << *enemyhp << "hp" << endl; cout << "You now have " << *hp << "hp" << endl; // Work out if anybody has won the fight. if (*hp <= 0) { *victor = ENEMY_WON; } else if (*enemyhp <= 0) { *victor = YOU_WON; } else { *victor = NOBODY_WON; } } void battle() { //srand(time(NULL)); string input; int hp = 30; int enemyhp = 30; int attack = 2; int enemyattack = 2; // Hit probabilities as a percentage. // hitprobability: the percentage probability of you being hit by the enemy. int hitprobability = 50; // enemyhitprobability: the percentage probability of your enemy being hit by you. int enemyhitprobability = 50; int victor = NOBODY_WON; cout << "You entered the fight with the enemy, what will you do?"; // While nobody has won the fight, do... while (victor == NOBODY_WON) { // Get the player's input. cout << "\n\n1.Attack\n2.Magic" << endl; cin >> input; // If the player, want to attack, then... // FIXME: Use case insensitive // string compare here. if (input == "Attack" || input == "attack") { // Attack! do_attack ( &hp, &enemyhp, attack, enemyattack, hitprobability, enemyhitprobability, &victor); } // If nobody has won, then... if (victor == NOBODY_WON) { // Display a message that we are still fighting. cout << "You are still in a fight with the enemy, what next?"; } } // Check to see who won the fight. if (victor == ENEMY_WON) { cout << "Sad news, you have been destroyed!" << endl; } else if (victor == YOU_WON) { cout << "Congratulations, you have destroyed your enemy!" << endl; } } /*int test__has_hit(int hit_probability) { int hits_count = 0; int misses_count = 0; int total_tries = 5000; for (int tries = 1; tries <= total_tries; tries++) { if (has_hit(hit_probability)) { hits_count++; } else { misses_count++; } } printf("Hits percentage: %f\n", ((double)hits_count / (double)total_tries) * 100.0); printf("Misses percentage: %f\n", ((double)misses_count / (double)total_tries) * 100.0); printf("Hits: %d\n", hits_count); printf("Misses: %d\n", misses_count); } int test__get_random_percentage() { int percentage; for (int i = 0; i < 1000; i++) { percentage = get_random_percentage(); printf("%d\n", percentage); } }*/ int main() { battle(); //test__get_random_percentage(); //test__has_hit(50); return 0; }

RPG (Helping Someone With Their Code)