player.cpp

#include "player.h"
#include <ctime>

int randomInt(int  max_int) {
    /** YOU DON'T NEED TO MODIFY THIS */
    srand(time(NULL));
    return (rand() % max_int) + 1;
}

void printInfo(List L) {
    /**
    * PR : menampilkan informasi ID, nama, dan lokasi file
    * YOU DON'T NEED TO MODIFY THIS
    */

    address Q = first(L);
    do {
        cout<<"name    : "<<info(Q).name<<endl
            <<"ID      : "<<info(Q).ID<<endl
            <<"location: "<<info(Q).location<<endl;
        Q = next(Q);
    } while(Q!=first(L));
    cout<<"==============================================="<<endl;
}


void playMusic(address P) {
    /**
    * PR : memainkan lagu yang ditunjuk oleh pointer P
    * YOU DON'T NEED TO MODIFY THIS
    */

    string filename = info(P).location+"/"+info(P).name;
    cout<<"playing "<<filename<<endl;
    PlaySound(TEXT(filename.c_str()), NULL, SND_FILENAME);
    _sleep(500); //delay 0.5 second
}


void shuffleList(List &L) {
    /**
    * PR : mengacak isi (elemen) dari list L
    * FS : isi (elemen) dari list teracak
    */
    //------------- YOUR CODE HERE -------------
    address P;
    P=first(L);
    int i=0;
    int j=randomInt(i);
    while (P!=first(L)) {
        i++;
        P=next(P);
    }
    while (i>0) {
        P=first(L);
        while (j!=0){
            P=next(P);
            j--;
        }
        address Prec=P;
        deleteAfter(L, prev(P), Prec);
        insertFirst(L, Prec);
        i--;
    }
        cout<<"UNDER MAIN TENIS"<<endl;

    //----------------------------------------
}

void playRepeat(List &L, int n) {
    /**
    * PR : memainkan seluruh lagu di dalam list
    *      dari lagu pertama hingga terakhir sebanyak n kali
    */
    //------------- YOUR CODE HERE -------------
    address P;
    int i=0;
    P=first(L);
    while (i<n) {
        i++;
        while (P!=first(L)) {
            P=next(P);
            playMusic(P);
        }
    }
        cout<<"UNDER MAIN TENIS"<<endl;

    //----------------------------------------
}

void deleteMusicByID(List &L, infotype x) {
    /**
    * IS : list L mungkin kosong
    * PR : menerima input user untuk ID lagu yang ingin dihapus
    *      jika ID lagu ditemukan, hapus (deallocate) lagu dari list
    * FS : elemen dengan ID yang dicari dideallocate
    */
    //------------- YOUR CODE HERE -------------
    address P;
    if (first(L)!=NULL) {
        if (findElmByID(L, x) != NULL){
            deleteAfter(L, prev(findElmByID(L, x)), P);
            deallocate(P);
        }
    }
        cout<<"UNDER MAIN TENIS"<<endl;

    //----------------------------------------

}