Операция delete в векторе

template<class T>
void DeleteElement(vector<T*> &vec, int i)
{
    if (i < vec.size())
    {
        delete vec[i];
        vec.erase(vec.begin() + i);
    }
}

class Objects
{
public:
    Objects();
    Objects(int x1, int y1, int x2, int y2, FLOAT sz, int sp, D3DXVECTOR2 unVec);
    ~Objects();
    D3DXVECTOR2 position, unitVector, speedVector;
    D3DXVECTOR3 centerPoint;
    RECT spriteRect, borderRect;
    int spriteLength, spriteHeight, speed;
    float size; 
    float angle;
    void SetUnitVector(D3DXVECTOR2 direction);
    void Moove();
    void Drow(float size, float angle);
    void Hit(Objects* object);
protected:
    void CreateSprite();
};

Objects::Objects(int x1, int y1, int x2, int y2, FLOAT sz, int sp, D3DXVECTOR2 unVec): size(sz), speed(sp), angle(0), unitVector(unVec)
{
    spriteRect = MakeRect (x1, y1, x2, y2);
    spriteLength = spriteRect.right - spriteRect.left;
    spriteHeight = spriteRect.bottom - spriteRect.top;
    centerPoint = D3DXVECTOR3(spriteLength/2, spriteHeight/2, 0);
    D3DXCreateSprite(pDirect3DDevice, &sprite);
}
Bullet::Bullet(int x1, int y1, int x2, int y2, FLOAT sz, int sp, string str, Objects* obj, D3DXVECTOR2 unVec): Objects (x1, y1, x2, y2, sz, sp, unVec), bulletBonus(str)
{
    position = obj->position;
    unitVector = D3DXVECTOR2(1.0f, 0.0f);
    borderRect = MakeRect (position.x - size*spriteLength/2, position.y - size*spriteHeight/2, position.x + size*spriteLength/2, position.y + size*spriteHeight/2);
}
BulletShrapnel::BulletShrapnel(Objects* obj): Bullet (450, 53, 477, 70, 0.5f, 25, "BulletShrapnel",  obj, D3DXVECTOR2(1.0f, 0.0f))
{
    emountBulletContain = shipVec[0]->GetShrapnelNumber();
}
Meteors::Meteors(int x1, int y1, int x2, int y2): Objects(x1, y1, x2, y2, (rand() % 4 + 3) * 0.1f, rand() % 4 + 1, D3DXVECTOR2(-1.0f, 0.0f))
{
    position = D3DXVECTOR2(800.0f, rand() % 505 + 25.0f);
    unitVector = D3DXVECTOR2(-1.0f, 0.0f);
    CreateSprite();
}
RollingMeteors::RollingMeteors(): Meteors(0, 260, 103, 348)/* (rand() % 5 + 2) * 0.1f, rand() % 4 + 1, D3DXVECTOR2(-1.0f, 0.0f))*/, rollSpeed(rand() % 4 + 1) 
{
    borderRect = MakeRect (position.x - size*spriteLength/2, position.y - size*spriteHeight/2, position.x + size*spriteLength/2, position.y + size*spriteHeight/2);
}
AnimatedMeteors::AnimatedMeteors():Meteors(0, 135, 102, 230)
{
    frame = 0;
    borderRect = MakeRect (position.x - size*spriteLength/2, position.y - size*spriteHeight/2, position.x + size*spriteLength/2, position.y + size*spriteHeight/2);
}

RECT MakeRect( long x1, long y1, long x2, long y2)
{
    RECT rect;
    rect.left   = x1;
    rect.top    = y1;
    rect.right  = x2;
    rect.bottom = y2;
    return rect;
}

template<class T>
void DeleteElement(vector<T*> &vec, unsigned int i)
{
    if (i < vec.size())
    {
        delete vec[i];
        vec.erase(vec.begin() + i);
    }
}