tetrixpiece.cpp Example File

widgets/tetrix/tetrixpiece.cpp
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#include <QtCore> #include <stdlib.h> #include "tetrixpiece.h" void TetrixPiece::setRandomShape() { setShape(TetrixShape(qrand() % 7 + 1)); } void TetrixPiece::setShape(TetrixShape shape) { static const int coordsTable[8][4][2] = { { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, { { 0, -1 }, { 0, 0 }, { -1, 0 }, { -1, 1 } }, { { 0, -1 }, { 0, 0 }, { 1, 0 }, { 1, 1 } }, { { 0, -1 }, { 0, 0 }, { 0, 1 }, { 0, 2 } }, { { -1, 0 }, { 0, 0 }, { 1, 0 }, { 0, 1 } }, { { 0, 0 }, { 1, 0 }, { 0, 1 }, { 1, 1 } }, { { -1, -1 }, { 0, -1 }, { 0, 0 }, { 0, 1 } }, { { 1, -1 }, { 0, -1 }, { 0, 0 }, { 0, 1 } } }; for (int i = 0; i < 4 ; i++) { for (int j = 0; j < 2; ++j) coords[i][j] = coordsTable[shape][i][j]; } pieceShape = shape; } int TetrixPiece::minX() const { int min = coords[0][0]; for (int i = 1; i < 4; ++i) min = qMin(min, coords[i][0]); return min; } int TetrixPiece::maxX() const { int max = coords[0][0]; for (int i = 1; i < 4; ++i) max = qMax(max, coords[i][0]); return max; } int TetrixPiece::minY() const { int min = coords[0][1]; for (int i = 1; i < 4; ++i) min = qMin(min, coords[i][1]); return min; } int TetrixPiece::maxY() const { int max = coords[0][1]; for (int i = 1; i < 4; ++i) max = qMax(max, coords[i][1]); return max; } TetrixPiece TetrixPiece::rotatedLeft() const { if (pieceShape == SquareShape) return *this; TetrixPiece result; result.pieceShape = pieceShape; for (int i = 0; i < 4; ++i) { result.setX(i, y(i)); result.setY(i, -x(i)); } return result; } TetrixPiece TetrixPiece::rotatedRight() const { if (pieceShape == SquareShape) return *this; TetrixPiece result; result.pieceShape = pieceShape; for (int i = 0; i < 4; ++i) { result.setX(i, -y(i)); result.setY(i, x(i)); } return result; }