Revision fbffa02a
Added by Leszek Koltunski about 3 years ago
| src/main/java/org/distorted/solvers/SolverMain.java | ||
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// (because the first implemented Solver - the two-phase Cube3 one - expects such order) |
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// |
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// Solved 3x3x3 Cube maps to "UUUUUUUUURRRRRRRRRFFFFFFFFFDDDDDDDDDLLLLLLLLLBBBBBBBBB" |
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// |
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// s : size of the cube; let index = a*s + b (i.e. a,b = row,column) |
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// |
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// Up : index --> b<s-1 ? (s-1)*(s+4b)+a : 6*s*s -13*s +8 +a |
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// Right : index --> 6*s*s - 12*s + 7 - index |
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// Front : index --> if b==0 : s*s - 1 - index |
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// if b==s-1: 6*s*s -11*s +6 - index |
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// else |
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// a==0: s*s + s-1 + 4*(b-1)*(s-1) + 2*(s-2) + s |
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// else: s*s + s-1 + 4*(b-1)*(s-1) + 2*(s-1-a) |
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// Down : index --> b==0 ? (s-1-a) : s*s + s-1 + 4*(b-1)*(s-1) - a |
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// Left : index --> (s-1-a)*s + b |
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// Back : index --> if b==s-1: s*(s-1-a) |
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// if b==0 : 5*s*s -12*s + 8 + (s-1-a)*s |
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// else |
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// if a==s-1: s*s + 4*(s-2-b)*(s-1) |
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// else : s*s + 4*(s-2-b)*(s-1) + s + (s-2-a)*2 |
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private String prepareCube3position() |
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{
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StringBuilder objectString = new StringBuilder(); |
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int layers = 3; |
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int len = layers*layers; |
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int cubitIndex, row, col, color,face; |
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final int RIGHT= 0;
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final int LEFT = 1;
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final int UP = 2;
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final int DOWN = 3;
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final int FRONT= 4;
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final int BACK = 5;
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final int R = 0;
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final int L = 1; |
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final int U = 2; |
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final int D = 3; |
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final int F = 4;
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final int B = 5; |
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// 'I' - interior, theoretically can happen |
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final char[] FACE_NAMES = { 'R', 'L', 'U', 'D', 'F', 'B', 'I'};
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face = UP; |
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final int[] U_INDEX = { 2,10, 6,17,22,19, 3,11, 7};
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final int[] R_INDEX = { 7,19, 6,15,20,14, 5,18, 4};
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final int[] F_INDEX = { 3,11, 7,13,24,15, 1, 9, 5};
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final int[] D_INDEX = { 1, 9, 5,16,23,18, 0, 8, 4};
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final int[] L_INDEX = { 2,17, 3,12,21,13, 0,16, 1};
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final int[] B_INDEX = { 6,10, 2,14,25,12, 4, 8, 0};
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for(int i=0; i<len; i++)
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for(int i=0; i<9; i++)
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{
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row = i/layers; |
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col = i%layers; |
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cubitIndex = col<layers-1 ? (layers-1)*(layers+4*col) + row : 6*layers*layers - 13*layers + 8 + row; |
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color = mObject.getCubitFaceColorIndex(cubitIndex,face); |
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int color = mObject.getCubitFaceColorIndex(U_INDEX[i], i==4 ? F : U); |
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objectString.append(FACE_NAMES[color]); |
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} |
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face = RIGHT; |
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for(int i=0; i<len; i++) |
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for(int i=0; i<9; i++) |
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{
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cubitIndex = 6*layers*layers - 12*layers +7 - i; |
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color = mObject.getCubitFaceColorIndex(cubitIndex,face); |
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int color = mObject.getCubitFaceColorIndex(R_INDEX[i], i==4 ? F : R); |
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objectString.append(FACE_NAMES[color]); |
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} |
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face = FRONT; |
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for(int i=0; i<len; i++) |
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for(int i=0; i<9; i++) |
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{
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row = i/layers; |
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col = i%layers; |
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if( col==layers-1 ) cubitIndex = 6*layers*layers - 11*layers + 6 -i; |
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else if( col==0 ) cubitIndex = layers*layers - 1 - i; |
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else |
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{
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if( row==0 ) cubitIndex = layers*layers + layers-1 + 4*(col-1)*(layers-1) + 2*(layers-2) + layers; |
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else cubitIndex = layers*layers + layers-1 + 4*(col-1)*(layers-1) + 2*(layers-1-row); |
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} |
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color = mObject.getCubitFaceColorIndex(cubitIndex,face); |
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int color = mObject.getCubitFaceColorIndex(F_INDEX[i], i==4 ? F : F); |
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objectString.append(FACE_NAMES[color]); |
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} |
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face = DOWN; |
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for(int i=0; i<len; i++) |
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for(int i=0; i<9; i++) |
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{
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row = i/layers; |
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col = i%layers; |
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cubitIndex = col==0 ? layers-1-row : layers*layers + layers-1 + 4*(col-1)*(layers-1) - row; |
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color = mObject.getCubitFaceColorIndex(cubitIndex,face); |
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int color = mObject.getCubitFaceColorIndex(D_INDEX[i], i==4 ? F : D); |
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objectString.append(FACE_NAMES[color]); |
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} |
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face = LEFT; |
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for(int i=0; i<len; i++) |
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for(int i=0; i<9; i++) |
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{
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row = i/layers; |
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col = i%layers; |
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cubitIndex = (layers-1-row)*layers + col; |
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color = mObject.getCubitFaceColorIndex(cubitIndex,face); |
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int color = mObject.getCubitFaceColorIndex(L_INDEX[i], i==4 ? F : L); |
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objectString.append(FACE_NAMES[color]); |
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} |
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face = BACK; |
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for(int i=0; i<len; i++) |
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for(int i=0; i<9; i++) |
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{
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row = i/layers; |
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col = i%layers; |
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if( col==layers-1 ) cubitIndex = layers*(layers-1-row); |
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else if( col==0 ) cubitIndex = 5*layers*layers - 12*layers + 8 + (layers-1-row)*layers; |
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else |
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{
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if( row==layers-1 ) cubitIndex = layers*layers + 4*(layers-2-col)*(layers-1); |
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else cubitIndex = layers*layers + 4*(layers-2-col)*(layers-1) + layers + 2*(layers-2-row); |
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} |
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color = mObject.getCubitFaceColorIndex(cubitIndex,face); |
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int color = mObject.getCubitFaceColorIndex(B_INDEX[i], i==4 ? F : B); |
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objectString.append(FACE_NAMES[color]); |
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} |
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android.util.Log.e("D", objectString.toString());
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return objectString.toString(); |
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} |
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