public static ExtendendList <Tipp> ShowsAllTipps(ExtendendList <Structure> lst) { ExtendendList <Tipp> toReturn = new ExtendendList <Tipp>(); foreach (Structure ms in lst) { ExtendendList <Cart> active = new ExtendendList <Cart>(); foreach (Cart cmr in ms.lstCards) { if (cmr.Active) { active.Add(cmr); } } ExtendendList <Cart> proove = new ExtendendList <Cart>(); ExtendendList <Cart> testLst = new ExtendendList <Cart>(); bool okay = false; for (int i = 0; i <= active.Count - 1; i++) { proove.Clear(); for (int j = i; j <= active.Count - 1; j++) { proove.Add(active[j]); } okay = Structure.CanMoveCards(proove); if (proove.Count != 1 && okay) { // If you try to switch more than one card, all cards have to be the same color. Cart.GameMode currentMode = Cart.GameMode.Black; bool ok = false; for (int y = 0; y <= proove.Count - 1; y++) { if (y == 0) { currentMode = proove[y].GameMode_; } else { if (currentMode != proove[y].GameMode_) { ok = false; break; } } } okay = ok; } if (okay) { // At first, we have have to check out, whether the structure fits to the last cart from another structure! bool goOn = false; foreach (Structure d1 in lst) { if (d1.lstCards.Count == 0) { goOn = true; } else { testLst.Clear(); testLst.Add(d1.lstCards[d1.lstCards.Count - 1]); testLst.AddRange(proove); goOn = Structure.CanMoveCards(testLst); if (goOn) { foreach (Cart cs1 in testLst) { cs1.IsTipp = true; } } } if (goOn) { if (testLst.Count != 0) { foreach (Cart cs1 in proove) { cs1.IsTipp = true; } } } } } } } return(toReturn); }