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# tetrixpiece.h Example File
widgets/tetrix/tetrixpiece.h

        #ifndef TETRIXPIECE_H
        #define TETRIXPIECE_H

        enum TetrixShape { NoShape, ZShape, SShape, LineShape, TShape, SquareShape,
                           LShape, MirroredLShape };

        class TetrixPiece
        {
        public:
            TetrixPiece() { setShape(NoShape); }

            void setRandomShape();
            void setShape(TetrixShape shape);

            TetrixShape shape() const { return pieceShape; }
            int x(int index) const { return coords[index][0]; }
            int y(int index) const { return coords[index][1]; }
            int minX() const;
            int maxX() const;
            int minY() const;
            int maxY() const;
            TetrixPiece rotatedLeft() const;
            TetrixPiece rotatedRight() const;

        private:
            void setX(int index, int x) { coords[index][0] = x; }
            void setY(int index, int y) { coords[index][1] = y; }

            TetrixShape pieceShape;
            int coords[4][2];
        };

        #endif