|
1 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
2 |
// Copyright 2023 Leszek Koltunski //
|
|
3 |
// //
|
|
4 |
// This file is part of Magic Cube. //
|
|
5 |
// //
|
|
6 |
// Magic Cube is proprietary software licensed under an EULA which you should have received //
|
|
7 |
// along with the code. If not, check https://distorted.org/magic/License-Magic-Cube.html //
|
|
8 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
9 |
|
|
10 |
package org.distorted.solvers;
|
|
11 |
|
|
12 |
import android.content.res.Resources;
|
|
13 |
|
|
14 |
import org.distorted.main.R;
|
|
15 |
import org.distorted.objectlib.main.ObjectSignatures;
|
|
16 |
import org.distorted.objectlib.main.TwistyObject;
|
|
17 |
import org.distorted.objectlib.tablebases.ImplementedTablebasesList;
|
|
18 |
import org.distorted.objectlib.tablebases.TablebaseHelpers;
|
|
19 |
import org.distorted.objectlib.tablebases.TablebasesAbstract;
|
|
20 |
|
|
21 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
22 |
|
|
23 |
public class SolverCube2 extends SolverTablebase
|
|
24 |
{
|
|
25 |
private static final int ERROR_CORNER_135_MISSING = -1;
|
|
26 |
private static final int ERROR_CORNER_134_MISSING = -2;
|
|
27 |
private static final int ERROR_CORNER_125_MISSING = -3;
|
|
28 |
private static final int ERROR_CORNER_124_MISSING = -4;
|
|
29 |
private static final int ERROR_CORNER_035_MISSING = -5;
|
|
30 |
private static final int ERROR_CORNER_034_MISSING = -6;
|
|
31 |
private static final int ERROR_CORNER_025_MISSING = -7;
|
|
32 |
private static final int ERROR_CORNER_024_MISSING = -8;
|
|
33 |
private static final int ERROR_CORNERS_CANNOT = -9;
|
|
34 |
private static final int ERROR_CORNER_TWISTED = -10;
|
|
35 |
|
|
36 |
TablebasesAbstract mSolver;
|
|
37 |
private final int[] mFaceColors;
|
|
38 |
|
|
39 |
////////////////////////////////////////////////////////////////////////////////////////
|
|
40 |
|
|
41 |
private void fillCornerTwists(int[] output, int[][] corners, int[] perm)
|
|
42 |
{
|
|
43 |
// TODO
|
|
44 |
}
|
|
45 |
|
|
46 |
////////////////////////////////////////////////////////////////////////////////////////
|
|
47 |
|
|
48 |
private int cornerIndex(int[][] corners, int i1, int i2, int i3)
|
|
49 |
{
|
|
50 |
int c1 = mFaceColors[i1];
|
|
51 |
int c2 = mFaceColors[i2];
|
|
52 |
int c3 = mFaceColors[i3];
|
|
53 |
|
|
54 |
for(int i=0; i<8; i++)
|
|
55 |
{
|
|
56 |
int[] cor = corners[i];
|
|
57 |
|
|
58 |
if( (cor[0]==c1 && cor[1]==c2 && cor[2]==c3) ||
|
|
59 |
(cor[0]==c2 && cor[1]==c3 && cor[2]==c1) ||
|
|
60 |
(cor[0]==c3 && cor[1]==c1 && cor[2]==c2) ) return i;
|
|
61 |
}
|
|
62 |
|
|
63 |
return -1;
|
|
64 |
}
|
|
65 |
|
|
66 |
////////////////////////////////////////////////////////////////////////////////////////
|
|
67 |
|
|
68 |
private int retCornerPermutation(int[] output, int[][] corners)
|
|
69 |
{
|
|
70 |
for(int i=0; i<8; i++) output[i] = -1;
|
|
71 |
|
|
72 |
output[0] = cornerIndex(corners, 1,2,5);
|
|
73 |
output[1] = cornerIndex(corners, 1,4,2);
|
|
74 |
output[2] = cornerIndex(corners, 1,5,3);
|
|
75 |
output[3] = cornerIndex(corners, 1,3,4);
|
|
76 |
output[4] = cornerIndex(corners, 0,5,2);
|
|
77 |
output[5] = cornerIndex(corners, 0,2,4);
|
|
78 |
output[6] = cornerIndex(corners, 0,3,5);
|
|
79 |
output[7] = cornerIndex(corners, 0,4,3);
|
|
80 |
|
|
81 |
if( output[0]==-1 ) { android.util.Log.e("D ", "135"); return ERROR_CORNER_135_MISSING; }
|
|
82 |
if( output[1]==-1 ) { android.util.Log.e("D ", "134"); return ERROR_CORNER_134_MISSING; }
|
|
83 |
if( output[2]==-1 ) { android.util.Log.e("D ", "125"); return ERROR_CORNER_125_MISSING; }
|
|
84 |
if( output[3]==-1 ) { android.util.Log.e("D ", "124"); return ERROR_CORNER_124_MISSING; }
|
|
85 |
if( output[4]==-1 ) { android.util.Log.e("D ", "035"); return ERROR_CORNER_035_MISSING; }
|
|
86 |
if( output[5]==-1 ) { android.util.Log.e("D ", "034"); return ERROR_CORNER_034_MISSING; }
|
|
87 |
if( output[6]==-1 ) { android.util.Log.e("D ", "025"); return ERROR_CORNER_025_MISSING; }
|
|
88 |
if( output[7]==-1 ) { android.util.Log.e("D ", "024"); return ERROR_CORNER_024_MISSING; }
|
|
89 |
|
|
90 |
return 0;
|
|
91 |
}
|
|
92 |
|
|
93 |
////////////////////////////////////////////////////////////////////////////////////////
|
|
94 |
|
|
95 |
private int findColor(int[][] corners, int c1, int c2)
|
|
96 |
{
|
|
97 |
for(int i=0; i<8; i++)
|
|
98 |
{
|
|
99 |
int[] cor = corners[i];
|
|
100 |
|
|
101 |
if( cor[0]==c1 && cor[1]==c2 ) return cor[2];
|
|
102 |
if( cor[1]==c1 && cor[2]==c2 ) return cor[0];
|
|
103 |
if( cor[2]==c1 && cor[0]==c2 ) return cor[1];
|
|
104 |
}
|
|
105 |
|
|
106 |
return -1;
|
|
107 |
}
|
|
108 |
|
|
109 |
////////////////////////////////////////////////////////////////////////////////////////
|
|
110 |
|
|
111 |
private int computeFaceColors(int[][] corners)
|
|
112 |
{
|
|
113 |
mFaceColors[1] = corners[1][0];
|
|
114 |
mFaceColors[2] = corners[1][2];
|
|
115 |
mFaceColors[4] = corners[1][1];
|
|
116 |
|
|
117 |
mFaceColors[0] = findColor(corners,mFaceColors[2],mFaceColors[4]);
|
|
118 |
mFaceColors[3] = findColor(corners,mFaceColors[4],mFaceColors[1]);
|
|
119 |
mFaceColors[5] = findColor(corners,mFaceColors[1],mFaceColors[2]);
|
|
120 |
|
|
121 |
for(int i=0; i<6; i++) android.util.Log.e("D", "face "+i+" : "+mFaceColors[i]);
|
|
122 |
|
|
123 |
for(int i=0; i<6; i++)
|
|
124 |
{
|
|
125 |
int color = mFaceColors[i];
|
|
126 |
if( color<0 ) return ERROR_CORNERS_CANNOT;
|
|
127 |
|
|
128 |
for(int j=i+1; j<6; j++)
|
|
129 |
if( mFaceColors[j]==color ) return ERROR_CORNERS_CANNOT;
|
|
130 |
}
|
|
131 |
|
|
132 |
return 0;
|
|
133 |
}
|
|
134 |
|
|
135 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
136 |
|
|
137 |
public SolverCube2(Resources res, TwistyObject object)
|
|
138 |
{
|
|
139 |
super(res,object);
|
|
140 |
mFaceColors = new int[6];
|
|
141 |
}
|
|
142 |
|
|
143 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
144 |
|
|
145 |
public int tablebaseIndex(TwistyObject object)
|
|
146 |
{
|
|
147 |
int[][] corners= new int[8][3];
|
|
148 |
|
|
149 |
corners[0][0] = object.getCubitFaceStickerIndex(0,1);
|
|
150 |
corners[0][1] = object.getCubitFaceStickerIndex(0,3);
|
|
151 |
corners[0][2] = object.getCubitFaceStickerIndex(0,5);
|
|
152 |
|
|
153 |
corners[1][0] = object.getCubitFaceStickerIndex(1,3);
|
|
154 |
corners[1][1] = object.getCubitFaceStickerIndex(1,5);
|
|
155 |
corners[1][2] = object.getCubitFaceStickerIndex(1,1);
|
|
156 |
|
|
157 |
corners[2][0] = object.getCubitFaceStickerIndex(2,5);
|
|
158 |
corners[2][1] = object.getCubitFaceStickerIndex(2,1);
|
|
159 |
corners[2][2] = object.getCubitFaceStickerIndex(2,3);
|
|
160 |
|
|
161 |
corners[3][0] = object.getCubitFaceStickerIndex(3,1);
|
|
162 |
corners[3][1] = object.getCubitFaceStickerIndex(3,3);
|
|
163 |
corners[3][2] = object.getCubitFaceStickerIndex(3,5);
|
|
164 |
|
|
165 |
corners[4][0] = object.getCubitFaceStickerIndex(4,1);
|
|
166 |
corners[4][1] = object.getCubitFaceStickerIndex(4,3);
|
|
167 |
corners[4][2] = object.getCubitFaceStickerIndex(4,5);
|
|
168 |
|
|
169 |
corners[5][0] = object.getCubitFaceStickerIndex(5,1);
|
|
170 |
corners[5][1] = object.getCubitFaceStickerIndex(5,3);
|
|
171 |
corners[5][2] = object.getCubitFaceStickerIndex(5,5);
|
|
172 |
|
|
173 |
corners[6][0] = object.getCubitFaceStickerIndex(6,1);
|
|
174 |
corners[6][1] = object.getCubitFaceStickerIndex(6,3);
|
|
175 |
corners[6][2] = object.getCubitFaceStickerIndex(6,5);
|
|
176 |
|
|
177 |
corners[7][0] = object.getCubitFaceStickerIndex(7,1);
|
|
178 |
corners[7][1] = object.getCubitFaceStickerIndex(7,3);
|
|
179 |
corners[7][2] = object.getCubitFaceStickerIndex(7,5);
|
|
180 |
/*
|
|
181 |
for(int i=0; i<8; i++)
|
|
182 |
for(int f=0; f<3; f++)
|
|
183 |
{
|
|
184 |
android.util.Log.e("D", "cubit "+i+" face "+f+" : "+corners[i][f]);
|
|
185 |
}
|
|
186 |
*/
|
|
187 |
int result0 = computeFaceColors(corners);
|
|
188 |
if( result0<0 ) return result0;
|
|
189 |
|
|
190 |
int[] corner_perm = new int[8];
|
|
191 |
int result1 = retCornerPermutation(corner_perm,corners);
|
|
192 |
if( result1<0 ) return result1;
|
|
193 |
|
|
194 |
int[] perm = new int[7];
|
|
195 |
|
|
196 |
perm[0] = corner_perm[0]>1 ? corner_perm[0]-1 : corner_perm[0];
|
|
197 |
perm[1] = corner_perm[2]>1 ? corner_perm[2]-1 : corner_perm[2];
|
|
198 |
perm[2] = corner_perm[3]>1 ? corner_perm[3]-1 : corner_perm[3];
|
|
199 |
perm[3] = corner_perm[4]>1 ? corner_perm[4]-1 : corner_perm[4];
|
|
200 |
perm[4] = corner_perm[5]>1 ? corner_perm[5]-1 : corner_perm[5];
|
|
201 |
perm[5] = corner_perm[6]>1 ? corner_perm[6]-1 : corner_perm[6];
|
|
202 |
perm[6] = corner_perm[7]>1 ? corner_perm[7]-1 : corner_perm[7];
|
|
203 |
|
|
204 |
int perm_num = TablebaseHelpers.computePermutationNum(perm);
|
|
205 |
/*
|
|
206 |
android.util.Log.e("D", "corner perm num="+perm_num);
|
|
207 |
|
|
208 |
for(int i=0; i<8; i++)
|
|
209 |
{
|
|
210 |
android.util.Log.e("D", "8perm "+i+" "+corner_perm[i]);
|
|
211 |
}
|
|
212 |
for(int i=0; i<7; i++)
|
|
213 |
{
|
|
214 |
android.util.Log.e("D", "7perm "+i+" "+perm[i]);
|
|
215 |
}
|
|
216 |
*/
|
|
217 |
int[] twist = new int[8];
|
|
218 |
fillCornerTwists(twist,corners,corner_perm);
|
|
219 |
|
|
220 |
int totalTwist = 0;
|
|
221 |
for(int i=0; i<8; i++) totalTwist += twist[i];
|
|
222 |
if( ((totalTwist)%3) != 0 ) return ERROR_CORNER_TWISTED;
|
|
223 |
|
|
224 |
int twistNum = twist[0] + 3*(twist[2] + 3*(twist[3] + 3*(twist[4] + 3*(twist[5] + 3*twist[6]))));
|
|
225 |
|
|
226 |
return twistNum + 729*perm_num;
|
|
227 |
}
|
|
228 |
|
|
229 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
230 |
|
|
231 |
private int getColorIndex4(int face)
|
|
232 |
{
|
|
233 |
switch(mFaceColors[face])
|
|
234 |
{
|
|
235 |
case 0: return R.string.color_yellow4;
|
|
236 |
case 1: return R.string.color_white4;
|
|
237 |
case 2: return R.string.color_green4;
|
|
238 |
case 3: return R.string.color_blue4;
|
|
239 |
case 4: return R.string.color_red4;
|
|
240 |
case 5: return R.string.color_orange4;
|
|
241 |
}
|
|
242 |
|
|
243 |
return -1;
|
|
244 |
}
|
|
245 |
|
|
246 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
247 |
|
|
248 |
private int getColorIndex3(int face)
|
|
249 |
{
|
|
250 |
switch(mFaceColors[face])
|
|
251 |
{
|
|
252 |
case 0: return R.string.color_yellow3;
|
|
253 |
case 1: return R.string.color_white3;
|
|
254 |
case 2: return R.string.color_green3;
|
|
255 |
case 3: return R.string.color_blue3;
|
|
256 |
case 4: return R.string.color_red3;
|
|
257 |
case 5: return R.string.color_orange3;
|
|
258 |
}
|
|
259 |
|
|
260 |
return -1;
|
|
261 |
}
|
|
262 |
|
|
263 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
264 |
|
|
265 |
private String cornerError(Resources res, int face0, int face1, int face2)
|
|
266 |
{
|
|
267 |
int j0 = getColorIndex3(face0);
|
|
268 |
int j1 = getColorIndex3(face1);
|
|
269 |
int j2 = getColorIndex4(face2);
|
|
270 |
|
|
271 |
String c0 = res.getString(j0);
|
|
272 |
String c1 = res.getString(j1);
|
|
273 |
String c2 = res.getString(j2);
|
|
274 |
|
|
275 |
return res.getString(R.string.solver_generic_missing_corner,c0,c1,c2);
|
|
276 |
}
|
|
277 |
|
|
278 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
279 |
|
|
280 |
public String error(int index, Resources res)
|
|
281 |
{
|
|
282 |
switch(index)
|
|
283 |
{
|
|
284 |
case ERROR_CORNER_135_MISSING: return cornerError(res,1,3,5);
|
|
285 |
case ERROR_CORNER_134_MISSING: return cornerError(res,1,3,4);
|
|
286 |
case ERROR_CORNER_125_MISSING: return cornerError(res,1,2,5);
|
|
287 |
case ERROR_CORNER_124_MISSING: return cornerError(res,1,2,4);
|
|
288 |
case ERROR_CORNER_035_MISSING: return cornerError(res,0,3,5);
|
|
289 |
case ERROR_CORNER_034_MISSING: return cornerError(res,0,3,4);
|
|
290 |
case ERROR_CORNER_025_MISSING: return cornerError(res,0,2,5);
|
|
291 |
case ERROR_CORNER_024_MISSING: return cornerError(res,0,2,4);
|
|
292 |
case ERROR_CORNERS_CANNOT : return res.getString(R.string.solver_generic_corners_cannot);
|
|
293 |
case ERROR_CORNER_TWISTED : return res.getString(R.string.solver_generic_corner_twist);
|
|
294 |
}
|
|
295 |
|
|
296 |
return null;
|
|
297 |
}
|
|
298 |
|
|
299 |
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
300 |
|
|
301 |
public int[][] solution(int index, Resources res)
|
|
302 |
{
|
|
303 |
if( mSolver==null )
|
|
304 |
{
|
|
305 |
mSolver = ImplementedTablebasesList.createUnpacked(ObjectSignatures.CUBE_2);
|
|
306 |
if( mSolver!=null ) mSolver.createTablebase();
|
|
307 |
}
|
|
308 |
|
|
309 |
return mSolver!=null ? mSolver.solution(index,null) : null;
|
|
310 |
}
|
|
311 |
}
|
|
312 |
|
Beginnings of the 2x2 solver.