Bowling/src/ScoreCalculator.cpp

#include "../include/ScoreCalculator.h"
#include "../include/Frame.h"

int ScoreCalculator::getScore(vector<Frame> frames) {
    int score = 0;
    
    // There can only be 10 frames.
    for (int i = 0; i < 10; i++) {
        // Strike
        if (frames[i].Roll[0] == 10) {
            if (frames[i].Roll.size() == 3) {
                score += frames[i].Roll[0] + frames[i].Roll[1] + frames[i].Roll[2];
                continue;
            }
            
            // If the next frame has 3 or 2 rolls, then take those 2.
            if (frames[i + 1].Roll.size() > 1) {
                score += frames[i].Roll[0] + frames[i + 1].Roll[0] + frames[i + 1].Roll[1];
                continue;
            }
            
            // Both next frames, that are not the last, are 10.
            score += frames[i].Roll[0] + frames[i + 1].Roll[0] + frames[i + 2].Roll[0];
            continue;
        }
        
        // Spare
        if (frames[i].Roll[0] + frames[i].Roll[1] == 10) {
            if (frames[i].Roll.size() == 3) {
                score += frames[i].Roll[0] + frames[i].Roll[1] + frames[i].Roll[2];
                continue;
            }
            
            score += 10 + frames[i + 1].Roll[0];
            continue;
        }
        
        // Open frame
        score += frames[i].Roll[0] + frames[i].Roll[1];
    }
    
    return score;
}