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Kim_A_task_1 #15

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arkaoi Feb 4, 2026
c814386
fix1
arkaoi Feb 4, 2026
bd865bd
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arkaoi Feb 4, 2026
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201 changes: 187 additions & 14 deletions src/main/java/hse/java/practice/task1/RubiksCube.java
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Original file line number Diff line number Diff line change
Expand Up @@ -2,34 +2,207 @@

import java.util.Arrays;

/**
* Необходимо реализовать интерфейс Cube
* При повороте передней грани, меняются верх низ право и лево
*/
public class RubiksCube {
public class RubiksCube implements Cube {

private static final int EDGES_COUNT = 6;

private final Edge[] edges = new Edge[EDGES_COUNT];

/**
* Создать валидный собранный кубик
* грани разместить по ордеру в енуме цветов
* грань 0 -> цвет 0
* грань 1 -> цвет 1
* ...
*/
public RubiksCube() {
CubeColor[] colors = CubeColor.values();
for (int i = 0; i < 6; i++) {
edges[i] = new Edge(colors[i]);
}
}

@Override
public void front(RotateDirection direction) {
rotateFace(edges[EdgePosition.FRONT.ordinal()], direction);

CubeColor[] line1 = getRow(EdgePosition.UP, 2);
CubeColor[] line2 = getCol(EdgePosition.RIGHT, 0);
CubeColor[] line3 = getRow(EdgePosition.DOWN, 0);
CubeColor[] line4 = getCol(EdgePosition.LEFT, 2);

if (direction == RotateDirection.CLOCKWISE) {
setRow(EdgePosition.UP, 2, reverse(line4));
setCol(EdgePosition.RIGHT, 0, line1);
setRow(EdgePosition.DOWN, 0, reverse(line2));
setCol(EdgePosition.LEFT, 2, line3);
} else {
setRow(EdgePosition.UP, 2, line2);
setCol(EdgePosition.RIGHT, 0, reverse(line3));
setRow(EdgePosition.DOWN, 0, line4);
setCol(EdgePosition.LEFT, 2, reverse(line1));
}
}

@Override
public void back(RotateDirection direction) {
rotateFace(edges[EdgePosition.BACK.ordinal()], direction);

CubeColor[] line1 = getRow(EdgePosition.UP, 0);
CubeColor[] line2 = getCol(EdgePosition.LEFT, 0);
CubeColor[] line3 = getRow(EdgePosition.DOWN, 2);
CubeColor[] line4 = getCol(EdgePosition.RIGHT, 2);

if (direction == RotateDirection.CLOCKWISE) {
setRow(EdgePosition.UP, 0, reverse(line4));
setCol(EdgePosition.LEFT, 0, line1);
setRow(EdgePosition.DOWN, 2, reverse(line2));
setCol(EdgePosition.RIGHT, 2, line3);
} else {
setRow(EdgePosition.UP, 0, line2);
setCol(EdgePosition.LEFT, 0, reverse(line3));
setRow(EdgePosition.DOWN, 2, line4);
setCol(EdgePosition.RIGHT, 2, reverse(line1));
}
}

@Override
public void left(RotateDirection direction) {
rotateFace(edges[EdgePosition.LEFT.ordinal()], direction);

CubeColor[] line1 = getCol(EdgePosition.UP, 0);
CubeColor[] line2 = getCol(EdgePosition.FRONT, 0);
CubeColor[] line3 = getCol(EdgePosition.DOWN, 0);
CubeColor[] line4 = getCol(EdgePosition.BACK, 2);

if (direction == RotateDirection.CLOCKWISE) {
setCol(EdgePosition.UP, 0, reverse(line4));
setCol(EdgePosition.FRONT, 0, line1);
setCol(EdgePosition.DOWN, 0, line2);
setCol(EdgePosition.BACK, 2, reverse(line3));
} else {
setCol(EdgePosition.UP, 0, line2);
setCol(EdgePosition.FRONT, 0, line3);
setCol(EdgePosition.DOWN, 0, reverse(line4));
setCol(EdgePosition.BACK, 2, reverse(line1));
}
}

@Override
public void right(RotateDirection direction) {
rotateFace(edges[EdgePosition.RIGHT.ordinal()], direction);

CubeColor[] line1 = getCol(EdgePosition.UP, 2);
CubeColor[] line2 = getCol(EdgePosition.BACK, 0);
CubeColor[] line3 = getCol(EdgePosition.DOWN, 2);
CubeColor[] line4 = getCol(EdgePosition.FRONT, 2);

if (direction == RotateDirection.CLOCKWISE) {
setCol(EdgePosition.UP, 2, line4);
setCol(EdgePosition.BACK, 0, reverse(line1));
setCol(EdgePosition.DOWN, 2, reverse(line2));
setCol(EdgePosition.FRONT, 2, line3);
} else {
setCol(EdgePosition.UP, 2, reverse(line2));
setCol(EdgePosition.BACK, 0, line3);
setCol(EdgePosition.DOWN, 2, line4);
setCol(EdgePosition.FRONT, 2, reverse(line1));
}
}

@Override
public void up(RotateDirection direction) {
rotateFace(edges[EdgePosition.UP.ordinal()], direction);

CubeColor[] line1 = getRow(EdgePosition.BACK, 0);
CubeColor[] line2 = getRow(EdgePosition.RIGHT, 0);
CubeColor[] line3 = getRow(EdgePosition.FRONT, 0);
CubeColor[] line4 = getRow(EdgePosition.LEFT, 0);

if (direction == RotateDirection.CLOCKWISE) {
setRow(EdgePosition.BACK, 0, line4);
setRow(EdgePosition.RIGHT, 0, line1);
setRow(EdgePosition.FRONT, 0, line2);
setRow(EdgePosition.LEFT, 0, line3);
} else {
setRow(EdgePosition.BACK, 0, line2);
setRow(EdgePosition.RIGHT, 0, line3);
setRow(EdgePosition.FRONT, 0, line4);
setRow(EdgePosition.LEFT, 0, line1);
}
}


@Override
public void down(RotateDirection direction) {
rotateFace(edges[EdgePosition.DOWN.ordinal()], direction);

CubeColor[] line1 = getRow(EdgePosition.FRONT, 2);
CubeColor[] line2 = getRow(EdgePosition.RIGHT, 2);
CubeColor[] line3 = getRow(EdgePosition.BACK, 2);
CubeColor[] line4 = getRow(EdgePosition.LEFT, 2);

if (direction == RotateDirection.CLOCKWISE) {
setRow(EdgePosition.FRONT, 2, line4);
setRow(EdgePosition.RIGHT, 2, line1);
setRow(EdgePosition.BACK, 2, line2);
setRow(EdgePosition.LEFT, 2, line3);
} else {
setRow(EdgePosition.FRONT, 2, line2);
setRow(EdgePosition.RIGHT, 2, line3);
setRow(EdgePosition.BACK, 2, line4);
setRow(EdgePosition.LEFT, 2, line1);
}
}

private void rotateFace(Edge edge, RotateDirection direction) {
CubeColor[][] old = edge.getParts();
CubeColor[][] rotated = new CubeColor[3][3];

for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
if (direction == RotateDirection.CLOCKWISE) {
rotated[j][2 - i] = old[i][j];
} else {
rotated[2 - j][i] = old[i][j];
}
}
}
edge.setParts(rotated);
}

private CubeColor[] getRow(EdgePosition pos, int row) {
CubeColor[] result = new CubeColor[3];
CubeColor[][] parts = edges[pos.ordinal()].getParts();
for (int i = 0; i < 3; i++) {
result[i] = parts[row][i];
}
return result;
}

private CubeColor[] getCol(EdgePosition pos, int col) {
CubeColor[] result = new CubeColor[3];
CubeColor[][] parts = edges[pos.ordinal()].getParts();
for (int i = 0; i < 3; i++) {
result[i] = parts[i][col];
}
return result;
}

private void setRow(EdgePosition pos, int row, CubeColor[] data) {
CubeColor[][] parts = edges[pos.ordinal()].getParts();
for (int i = 0; i < 3; i++) {
parts[row][i] = data[i];
}
}

private void setCol(EdgePosition pos, int col, CubeColor[] data) {
CubeColor[][] parts = edges[pos.ordinal()].getParts();
for (int i = 0; i < 3; i++) {
parts[i][col] = data[i];
}
}

private CubeColor[] reverse(CubeColor[] array) {
CubeColor[] result = new CubeColor[array.length];
for (int i = 0; i < array.length; i++) {
result[i] = array[array.length - 1 - i];
}
return result;
}

public Edge[] getEdges() {
return edges;
}
Expand All @@ -38,4 +211,4 @@ public Edge[] getEdges() {
public String toString() {
return Arrays.toString(edges);
}
}
}