CatAndMouseGame/cat.cpp at main · vboothroyd/CatAndMouseGame · GitHub

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#include <iostream>
#include <utility>
#include <vector>
using namespace std;
#include "global.h"
#include "cat.h"

using namespace std;

Cat::Cat() {
    location = pair<int, int>(3, 5);
    lastLocation = pair<int, int>(3, 5);
}

Cat::Cat(pair<int, int> startLocation) {
    location = startLocation;
    lastLocation = startLocation;
}

// Return 2 if cat caught the mouse, 1 if cat saw the mouse, or 0 if cat saw nothing
int Cat::move(pair<int, int> mouseLocation) {

    int searchResults = search(mouseLocation);

    vector<pair<int, int>> directionOptions;
    int randomIndex;

    switch (searchResults) {
        case 0: // If mouse is not visible, go random direction

            // get direction options
            if (location.first-1 >= 0 && maze[location.second][location.first-1] == 0 && pair<int, int>(location.first-1, location.second) != lastLocation) { // check left
                directionOptions.push_back(pair<int, int>(location.first-1, location.second));
            }
            if (location.first+1 < 10 && maze[location.second][location.first+1] == 0 && pair<int, int>(location.first+1, location.second) != lastLocation) { // check right
                directionOptions.push_back(pair<int, int>(location.first+1, location.second));
            }
            if (location.second-1 >= 0 && maze[location.second-1][location.first] == 0 && pair<int, int>(location.first, location.second-1) != lastLocation) { // check up
                directionOptions.push_back(pair<int, int>(location.first, location.second-1));
            }
            if (location.second+1 < 10 && maze[location.second+1][location.first] == 0 && pair<int, int>(location.first, location.second+1) != lastLocation) { // check down
                directionOptions.push_back(pair<int, int>(location.first, location.second+1));
            }

            // Check if there is no options
            if (directionOptions.empty()) {
                pair<int, int> temp = lastLocation;
                lastLocation = location;
                location = temp;
                return 0;
            }

            randomIndex = rand() % directionOptions.size();
            lastLocation = location;
            location = directionOptions.at(randomIndex);
            return 0;
            break;
        case 1: // Mouse is visible and left
            if (pair<int, int>(location.first-1, location.second) == mouseLocation) {
                location.first--;
                return 2;
            } else {
                location.first--;
                location.first--;
                return 1;
            }
            break;
        case 2: // Mouse is visible and right
            if (pair<int, int>(location.first+1, location.second) == mouseLocation) {
                location.first++;
                return 2;
            } else {
                location.first++;
                location.first++;
                return 1;
            }
            break;
        case 3: // Mouse is visible and up
            if (pair<int, int>(location.first, location.second-1) == mouseLocation) {
                location.second--;
                return 2;
            } else {
                location.second--;
                location.second--;
                return 1;
            }

            break;
        case 4: // Mouse is visible and down
            if (pair<int, int>(location.first, location.second+1) == mouseLocation) {
                location.second++;
                return 2;
            } else {
                location.second++;
                location.second++;
                return 1;
            }
            break;
    }
    return 0;

}

// Return direction of the mouse if seen. If not, return 0
// 1 = left, 2 = right, 3 = up, 4 = down
int Cat::search(pair<int, int> mouseLocation) {

    // left
    if (location.first-1 >= 0 && maze[location.second][location.first-1] != 1) {
        if (pair<int, int>(location.first-1, location.second) == mouseLocation || pair<int, int>(location.first-2, location.second) == mouseLocation) {
            return 1;
        }
    }

    // right
    if (location.first+1 < 10 && maze[location.second][location.first+1] != 1) {
        if (pair<int, int>(location.first+1, location.second) == mouseLocation || pair<int, int>(location.first+2, location.second) == mouseLocation) {
            return 2;
        }
    }

    // up
    if (location.second-1 >= 0 && maze[location.second-1][location.first] != 1) {
        if (pair<int, int>(location.first, location.second-1) == mouseLocation || pair<int, int>(location.first, location.second-2) == mouseLocation) {
            return 3;
        }
    }

    // down
    if (location.second+1 < 10 && maze[location.second+1][location.first] != 1) {
        if (pair<int, int>(location.first, location.second+1) == mouseLocation || pair<int, int>(location.first, location.second+2) == mouseLocation) {
            return 4;
        }
    }

    return 0;

}

pair<int, int> Cat::getLocation() {
    return location;
}