补充十字方块、黑洞和空中换形强化

src/include/Tetris.h

@@ -57,6 +57,7 @@ struct PlayerStats
     int chainBlastLevel;
     int chainBombLevel;
     int laserLevel;
+    int crossPieceLevel;
     int thunderTetrisLevel;
     int thunderLaserLevel;
     int feverLevel;
@@ -82,6 +83,10 @@ struct PlayerStats
     int holdSlowTicks;
     int blockStormLevel;
     int blockStormPiecesRemaining;
+    int blackHoleLevel;
+    int blackHoleCharges;
+    int reshapeLevel;
+    int reshapeCharges;
     int stableStructureLevel;
     int doubleGrowthLevel;
     int gamblerLevel;
@@ -164,6 +169,7 @@ extern int holdType;
 extern bool holdUsedThisTurn;
 extern bool currentPieceIsExplosive;
 extern bool currentPieceIsLaser;
+extern bool currentPieceIsCross;
 extern int bricks[7][4][4][4];
 extern COLORREF BrickColor[7];
 
@@ -187,6 +193,8 @@ void OpenUpgradeMenu();
 void ConfirmUpgradeSelection();
 void HoldCurrentPiece();
 void UseScreenBomb();
+void UseBlackHole();
+void UseAirReshape();
 int GetRogueFallInterval();
 
 void TDrawScreen(HDC hdc, HWND hWnd);