//Tortoise and the hare race
#include <iostream>
#include <vector>
#include <time.h>

using namespace std;

int *updatePosHare(int*);
int *updatePosTort(int*);

void startMessage() {
    cout << "Bang!!" << endl;
    cout << "And they're off!" << endl;
}

int checkWin(int *currentPos) {
    int result{0};
    if (currentPos[70] >= 70 && currentPos[71 >= 70]) {
        cout << "It's a tie!" << endl;
        result = 1;
        return(result);
    }

    if (currentPos[70] >= 70) {
        cout << "The hare wins!" << endl;
        result = 1;
    }
    if (currentPos[71] >= 70) {
        cout << "The tortoise wins!" << endl;
        result = 1;
    }
    return(result);
}

void displayPos(int *currentPos) {
    for (int i = 0; i < 69; i++) {
        switch (*currentPos++) {
            case 0: cout << "_";
                    break;
            case 1: cout << "T";
                    break;
            case 2: cout << "H";
                    break;
            case 3: cout << "Ouch!!";
                    break;
        }
    }
    cout << endl;
}

int* updatePos(int *currentPos) {
    currentPos = updatePosHare(currentPos);
    currentPos = updatePosTort(currentPos);
    return(currentPos);
}

int *updatePosHare(int *currentPos) {
    if (currentPos[70] >= 0) { currentPos[currentPos[70]] = 0; }
    int mover{rand() % 10 + 1};
    if (mover <= 2) { currentPos[70] = currentPos[70] + 0; }
    if (mover > 2 && mover <= 4) { currentPos[70] = currentPos[70] + 9; }
    if (mover == 5) { currentPos[70] = currentPos[70] - 12; }
    if (mover > 5 && mover <= 8) { currentPos[70] = currentPos[70] + 1; }
    if (mover > 8) { currentPos[70] = currentPos[70] -2; }
    if (currentPos[70] >= 0) {
        currentPos[currentPos[70]] = 2;
    }
        if (currentPos[70] < 0) {
        cout << "The hare has fallen backwards off the track! He is " << -1*currentPos[70] << " units away from the starting line!" << endl;
    }
    return currentPos;
}

int *updatePosTort(int *currentPos) {
    int mover{rand() % 10 + 1};
    if (currentPos[71] >= 0) { currentPos[currentPos[71]] = 0; }
    if (mover <= 5) { currentPos[71] = currentPos[71] + 3; }
    if (mover > 5 && mover <= 7) { currentPos[71] = currentPos[71] -6; }
    if (mover > 7) { currentPos[71] = currentPos[71] + 1; }
    if (currentPos[71] >= 0) {
        if (currentPos[currentPos[71]] == 0) { currentPos[currentPos[71]] = 1; }
        else { currentPos[currentPos[71]] = 3; }
    }
    if (currentPos[71] < 0) {
        cout << "The tortoise has fallen backwards off the track! He is " << -1*currentPos[71] << " units away from the starting line!" << endl;
    }
    return currentPos;
}

void test() {
    srand(time(NULL));
    int wincheck{0};
    int racePos [81] = {0}; //This is 81 because it's the max position the hare can go on a win.
    int *raceCurrent{racePos};
    racePos[0] = 3;
    displayPos(raceCurrent);
    startMessage();
    while (wincheck != 1) { /* Gives us raceLength # of iterations, this is where the main body of the code is. Someday you might want to refactor it after tests are done. */
        raceCurrent = updatePos(raceCurrent);
        displayPos(raceCurrent);
        wincheck = checkWin(raceCurrent);
    }

}

int main()
{
    test();
    return 0;
}