Okay, so you'd like to resize the array to make room for a new Object*.  In C++, this is done using std::vector instead of raw arrays:

std::vector<Object*> colList;

void Player::addToList( Object* object ) {
    colList.push_back( object );
}

int Player::getColListSize() const {
    return colList.size();
}

Using raw arrays, you need to reallocate enough space to hold N+1 Object*s, and move those Object*s from the old array into the new array, and destroy the old array:

Object* newArr = new Object*[N+1];
for ( int idx = 0; idx < N; ++idx )
    newArr[idx] = colList[idx];
delete[] colList;
colList = newArr;

Most implementations of std::vector do the same as above behind the scenes.

Okay, so you'd like to resize the array to make room for a new Object*.  In C++, this is done using std::vector instead of raw arrays:

std::vector<Object*> Object;

void Player::addToList( Object* object ) {
    Object.push_back( object );
}

int Player::getColListSize() const {
    return Object.size();
}

Using raw arrays, you need to reallocate enough space to hold N+1 Object*s, and move those Object*s from the old array into the new array, and destroy the old array:

Object* newArr = new Object*[N+1];
for ( int idx = 0; idx < N; ++idx )
    newArr[idx] = colList[idx];
delete[] colList;
colList = newArr;

Most implementations of std::vector do the same as above behind the scenes.

Okay, so you'd like to resize the array to make room for a new Object*.  In C++, this is done using std::vector instead of raw arrays:

std::vector<Object*> Object;

void Player::addToList( Object* object ) {
    Object.push_back( object );
}

int Player::getColListSize() const {
    return Object.size();
}

Using raw arrays, you need to reallocate enough space to hold N+1 Object*s, and move those Object*s from the old array into the new array, and destroy the old array:

Object* newArr = new Object*[N+1];
for ( int idx = 0; idx < N; ++idx )
    newArr[idx] = Object[idx];
delete[] Object;
Object = newArr;

Most implementations of std::vector do the same as above behind the scenes.