Outline ![]()
Files ![]()
loading...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
/**
******************************************************************************
* @file game_win.c
* @author MCD Application Team
* @brief game functions
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "DIALOG.h"
#include "k_module.h"
#include "game_res.c"
/** @addtogroup GAME_MODULE
* @{
*/
/** @defgroup GAME
* @brief game routines
* @{
*/
/* External variables --------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
static void Startup(WM_HWIN hWin, uint16_t xpos, uint16_t ypos);
/* Private typedef -----------------------------------------------------------*/
K_ModuleItem_Typedef game_board =
{
2,
"Game",
&bmgame,
Startup,
NULL,
}
;
/* Private defines -----------------------------------------------------------*/
#define ID_FRAMEWIN_INFO (GUI_ID_USER + 0x01)
#define ID_IMAGE_INFO (GUI_ID_USER + 0x02)
#define ID_BUTTON_INFO_CLOSE (GUI_ID_USER + 0x03)
#define NUM_CELL_X 8
#define NUM_CELL_Y 8
#define AA_USE_HIRES 0
#define AA_FACTOR 1
#if AA_USE_HIRES
#define AA_CALCFACTOR AA_FACTOR
#else
#define AA_CALCFACTOR 1
#endif
#define CLIENT_COLOR GUI_TRANSPARENT
#define GRID_COLOR GUI_BROWN
/* Defines, player AI 'SmartGecko' */
#define DEPTH 4
#define END_GAME_DEPTH 9
#define INFINITY 1000000
#define WINNING_BONUS 100000
#define VALUE_OF_A_MOVE_POSSIBILITY 15
#define VALUE_OF_AN_UNSAFE_PIECE 8
#define VALUE_OF_A_SAFE_PIECE 20
#define VALUE_OF_A_CORNER 1000
/* Private macros ------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
typedef struct {
U8 aCells[NUM_CELL_X][NUM_CELL_Y];
U8 aMoves[NUM_CELL_X][NUM_CELL_Y];
int ActPlayer;
} BOARD;
typedef char REVERSI_AI_Func(const BOARD * pBoard, int* px, int* py);
static WM_HWIN _hFrame;
static REVERSI_AI_Func* _pPlayerAI[2];
static BOARD _Board;
static int _GameOver;
static int _BoardX0;
static int _BoardY0;
static int _CellSize;
/* Game settings */
static int _ShowPossibleMoves = 1;
static int * _px;
static int * _py;
static BOARD _aBoardStack[END_GAME_DEPTH + 1];
static const int _xs[60] = {
7, 7, 0, 0, 7, 7, 5, 5, 2, 2,
0, 0, 5, 5, 2, 2, 5, 5, 4, 4,
3, 3, 2, 2, 7, 7, 4, 4, 3, 3,
0, 0, 6, 6, 6, 6, 5, 5, 4, 4,
3, 3, 2, 2, 1, 1, 1, 1, 7, 7,
6, 6, 1, 1, 0, 0, 6, 6, 1, 1
};
static const int _ys[60] = {
7, 0, 7, 0, 5, 2, 7, 0, 7, 0,
5, 2, 5, 2, 5, 2, 4, 3, 5, 2,
5, 2, 4, 3, 4, 3, 7, 0, 7, 0,
4, 3, 5, 4, 3, 2, 6, 1, 6, 1,
6, 1, 6, 1, 5, 4, 3, 2, 6, 1,
7, 0, 7, 0, 6, 1, 6, 1, 6, 1
};
static int _aaSafe[10][10];
static const I32 _aaValues[8][8] = {
{ 1000, -100, 25, 0, 0, 25, -100, 1000 },
{ -100, -400, -5, -5, -5, -5, -400, -100 },
{ 25, -5, 12, 2, 2, 12, -5, 25 },
{ 0, -5, 2, 2, 2, 2, -5, 0 },
{ 0, -5, 2, 2, 2, 2, -5, 0 },
{ 25, -5, 12, 2, 2, 12, -5, 25 },
{ -100, -400, -5, -5, -5, -5, -400, -100 },
{ 1000, -100, 25, 0, 0, 25, -100, 1000 }
};
/* Private functions ---------------------------------------------------------*/
static void _StartNewGame(void);
/* Calculate Board Dimensions */
static void _CalcBoardDimensions(void) {
GUI_RECT r;
WM_GetClientRectEx(WM_GetClientWindow(_hFrame), &r);
_CellSize = ((r.x1 > r.y1) ? r.y1 : r.x1) >> 3;
_BoardX0 = (r.x1 - (_CellSize << 3)) >> 1;
_BoardY0 = (r.y1 - (_CellSize << 3)) >> 1;
}
/* Invalidate Board */
static void _InvalidateBoard(void) {
WM_InvalidateWindow(WM_GetClientWindow(_hFrame));
}
/* Invalidate Cell */
static void _InvalidateCell(int x, int y) {
GUI_RECT r;
r.x0 = _BoardX0 + (x * _CellSize);
r.y0 = _BoardY0 + (y * _CellSize);
r.x1 = r.x0 + _CellSize - 1;
r.y1 = r.y0 + _CellSize - 1;
WM_InvalidateRect(WM_GetClientWindow(_hFrame), &r);
}
/**
* @brief Get Stone
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @retval stone
*/
static char _GetStone(const BOARD * pBoard, int x, int y) {
char r = 0;
if ((x >= 0) && (y >= 0) && (x < NUM_CELL_X) && (y < NUM_CELL_Y)) {
r = pBoard->aCells[x][y];
}
return r;
}
/**
* @brief Set Stone
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @retval None
*/
static void _SetStone(BOARD * pBoard, int x, int y) {
if ((x >= 0) && (y >= 0) && (x < NUM_CELL_X) && (y < NUM_CELL_Y)) {
pBoard->aCells[x][y] = pBoard->ActPlayer;
_InvalidateCell(x, y);
}
}
/**
* @brief Is Valid Move
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @retval status
*/
static char _IsValidMove(BOARD * pBoard, int x, int y) {
char r = 0;
if ((x >= 0) && (y >= 0) && (x < NUM_CELL_X) && (y < NUM_CELL_Y)) {
r = ((pBoard->aMoves[x][y]) ? 1 : 0);
}
return r;
}
/**
* @brief Check Direction
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @param dx: difference between current and previous X position
* @param dy: difference between current and previous Y position
* @retval status
*/
static char _CheckDirection(const BOARD * pBoard, int x, int y, int dx, int dy) {
char Cell;
x += dx;
y += dy;
Cell = _GetStone(pBoard, x, y);
if ((Cell != pBoard->ActPlayer) && (Cell != 0)) {
do {
x += dx;
y += dy;
Cell = _GetStone(pBoard, x, y);
} while ((Cell != pBoard->ActPlayer) && (Cell != 0));
return ((Cell == pBoard->ActPlayer) ? 1 : 0);
}
return 0;
}
/**
* @brief Calculate valid moves
* @param pBoard: pointer to the board stack
* @retval valid moves
*/
static int _CalcValidMoves(BOARD * pBoard) {
int x, y, r = 0;
U8 Valid;
for (y = 0; y < NUM_CELL_Y; y++) {
for (x = 0; x < NUM_CELL_X; x++) {
Valid = 0;
if (pBoard->aCells[x][y] == 0) {
Valid |= _CheckDirection(pBoard, x, y, -1, -1) << 0;
Valid |= _CheckDirection(pBoard, x, y, 0, -1) << 1;
Valid |= _CheckDirection(pBoard, x, y, 1, -1) << 2;
Valid |= _CheckDirection(pBoard, x, y, 1, 0) << 3;
Valid |= _CheckDirection(pBoard, x, y, 1, 1) << 4;
Valid |= _CheckDirection(pBoard, x, y, 0, 1) << 5;
Valid |= _CheckDirection(pBoard, x, y, -1, 1) << 6;
Valid |= _CheckDirection(pBoard, x, y, -1, 0) << 7;
if (Valid) {
r++;
}
}
if (Valid != pBoard->aMoves[x][y]) {
pBoard->aMoves[x][y] = Valid;
_InvalidateCell(x, y);
}
}
}
return r;
}
/**
* @brief Do Direction
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @param dx: difference between current and previous X position
* @param dy: difference between current and previous Y position
* @retval None
*/
static void _DoDirection(BOARD * pBoard, int x, int y, int dx, int dy) {
do {
_SetStone(pBoard, x, y);
x += dx;
y += dy;
} while (_GetStone(pBoard, x, y) != pBoard->ActPlayer);
}
/**
* @brief Make Move
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @retval None
*/
static void _MakeMove(BOARD * pBoard, int x, int y) {
U8 Valid;
_SetStone(pBoard, x, y);
Valid = pBoard->aMoves[x][y];
if (Valid & (U8)(1 << 0)) { _DoDirection(pBoard, x, y, -1, -1); }
if (Valid & (U8)(1 << 1)) { _DoDirection(pBoard, x, y, 0, -1); }
if (Valid & (U8)(1 << 2)) { _DoDirection(pBoard, x, y, 1, -1); }
if (Valid & (U8)(1 << 3)) { _DoDirection(pBoard, x, y, 1, 0); }
if (Valid & (U8)(1 << 4)) { _DoDirection(pBoard, x, y, 1, 1); }
if (Valid & (U8)(1 << 5)) { _DoDirection(pBoard, x, y, 0, 1); }
if (Valid & (U8)(1 << 6)) { _DoDirection(pBoard, x, y, -1, 1); }
if (Valid & (U8)(1 << 7)) { _DoDirection(pBoard, x, y, -1, 0); }
}
/**
* @brief Calculate Score
* @param pBoard: pointer to the board stack
* @retval Score
*/
static int _CalcScore(const BOARD * pBoard) {
int x, y, r = 0;
char Cell;
for (y = 0; y < NUM_CELL_Y; y++) {
for (x = 0; x < NUM_CELL_X; x++) {
Cell = pBoard->aCells[x][y];
if (Cell) {
r += (Cell == pBoard->ActPlayer) ? (1) : (-1);
}
}
}
return r;
}
/**
* @brief Find the value of all the pieces belonging to the given player.
* @note Positive value is good for this player.
* The value can also be negative, if the player occupies tiles
* next to free corner, which makes it easier for the opponent
* to get to this corner.
* @param pBoard: pointer to the board stack
* @param player: player index
* @retval value
*/
static I32 _valuePieces(BOARD * pBoard, int player) {
I32 sum;
int x, y, corners, changed, s, xCorner, yCorner, numberOfSafe;
sum = 0;
for (y = 1; y <= 8; y++) {
for (x = 1; x <= 8; x++) {
_aaSafe[x][y] = 0;
}
}
corners = 0;
corners += pBoard->aCells[0][0] == player;
corners += pBoard->aCells[7][0] == player;
corners += pBoard->aCells[0][7] == player;
corners += pBoard->aCells[7][7] == player;
if (corners) {
/* Corners are the most valuable asset of the position. */
sum += corners * VALUE_OF_A_CORNER;
/* Calculate how many pieces are safe,
meaning they can never be taken back
by the opponent. */
while (1) {
/* Repeatedly swipe the board looking for safe pieces,
until no more safe pieces are found. */
changed = 0;
numberOfSafe = 0;
for (y = 1; y <= 8; y++) {
for (x = 1; x <= 8; x++) {
if (!_aaSafe[x][y] && pBoard->aCells[x - 1][y - 1] == player) {
/* A piece can never be taken back if in each of the four directions,
one of the two neighboring tiles are safe. */
s = (_aaSafe[x - 1][y ] || _aaSafe[x + 1][y ]) /* West - East */
&& (_aaSafe[x ][y - 1] || _aaSafe[x ][y + 1]) /* North - South */
&& (_aaSafe[x - 1][y - 1] || _aaSafe[x + 1][y + 1]) /* NW - SE */
&& (_aaSafe[x - 1][y + 1] || _aaSafe[x + 1][y - 1]); /* SW - NE */
if (s) {
_aaSafe[x][y] = 1;
changed = 1;
++numberOfSafe;
}
}
}
sum += numberOfSafe * VALUE_OF_A_SAFE_PIECE;
}
if (!changed) {
break;
}
}
}
/* Now add the value of the unsafe pieces. */
for (y = 0; y < 8; y++) {
yCorner = (y < 4) ? 0 : 7;
for (x = 0; x < 8; x++) {
if (pBoard->aCells[x][y] == player && !_aaSafe[x + 1][y + 1]) {
xCorner = x<4 ? 0 : 7;
if (pBoard->aCells[xCorner][yCorner]) {
/* If the corner is taken, we value each position in
the quadrant the same. */
sum += VALUE_OF_AN_UNSAFE_PIECE;
} else {
/* If the corner is still free, we use a lookup table
to find the value of each position. */
sum += _aaValues[x][y];
}
}
}
}
return sum;
}
/**
* @brief Evaluation function for Reversi board.
* @note Positive value means player 1 is in the lead,
* negative value means player 2 is in the lead.
* @param pBoard: pointer to the board stack
* @retval value
*/
static I32 _Eval(BOARD * pBoard) {
int ActPlayer, movesA, movesB;
I32 score, value;
ActPlayer = pBoard->ActPlayer;
pBoard->ActPlayer = 1;
movesA = _CalcValidMoves(pBoard);
pBoard->ActPlayer = 2;
movesB = _CalcValidMoves(pBoard);
pBoard->ActPlayer = ActPlayer;
if (movesA == 0 && movesB == 0) {
/* The game is over */
pBoard->ActPlayer = 1;
score = _CalcScore(pBoard);
pBoard->ActPlayer = ActPlayer;
if (score==0) {
return 0;
}
if (score > 0) {
return score + WINNING_BONUS;
}
if (score > 0) {
return score - WINNING_BONUS;
}
}
/* High number of possible moves is very valuable */
value = VALUE_OF_A_MOVE_POSSIBILITY * (movesA - movesB);
value += _valuePieces(pBoard, 1);
value -= _valuePieces(pBoard, 2);
return value;
}
/**
* @brief Minimax search for the best possible move with alpha-beta pruning
* @param depth: board depth
* @param alpha: current Move
* @param beta: previous Move
* @param firstMove: first Move index
* @retval best move
*/
static I32 _Descend(int depth, I32 alpha, I32 beta, int firstMove) {
BOARD * pBoard;
BOARD * nextBoard;
int x, y, moves, i, alt, maximize;
pBoard = _aBoardStack + depth;
nextBoard = _aBoardStack + depth - 1;
if (depth == 0) {
return _Eval(pBoard);
}
moves = _CalcValidMoves(pBoard);
if (moves == 0) {
/* The player has to pass */
pBoard->ActPlayer = 3 - pBoard->ActPlayer;
moves = _CalcValidMoves(pBoard);
if (moves == 0) {
/* The game is over */
return _Eval(pBoard);
}
}
maximize = pBoard->ActPlayer == 1;
for (i = 0; i < 60; ++i) {
/* Try the possible moves in order from most attractive to least attractive
position, to maximize the effect of the alpha-beta pruning. */
x = _xs[i];
y = _ys[i];
if (pBoard->aMoves[x][y]) {
*nextBoard = *pBoard;
_MakeMove(nextBoard, x, y);
nextBoard->ActPlayer = 3 - pBoard->ActPlayer;
/* Recursively evaluate the board resulting from this move. */
alt = _Descend(depth - 1, alpha, beta, 0);
if (maximize) {
if (alt > alpha) {
alpha = alt;
if (firstMove) {
*_px = x;
*_py = y;
}
}
} else {
if (alt < beta) {
beta = alt;
if (firstMove) {
*_px = x;
*_py = y;
}
}
}
if (beta <= alpha) {
/* This is the alpha-beta pruning terminal condition. */
goto end;
}
}
}
end:
return maximize ? alpha : beta;
}
/**
* @brief _PlayerAI_SmartGecko
* @param pBoard: pointer to the board stack
* @param x: X position
* @param y: Y position
* @retval char
*/
static char _PlayerAI_SmartGecko(const BOARD * pBoard, int * px, int * py) {
int x, y, freeTiles, depth;
/* Initialize the safe board to true to get the edges right */
for (y = 0; y < 10; y++) {
for (x = 0; x < 10; x++) {
_aaSafe[x][y] = 1;
}
}
*px = -1;
*py = -1;
_px = px;
_py = py;
freeTiles = 0;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++) {
if (!pBoard->aCells[x][y]) {
++freeTiles;
}
}
}
depth = DEPTH;
if (freeTiles <= END_GAME_DEPTH) {
/* In the end game, we expand the search depth. */
depth = freeTiles;
}
_aBoardStack[depth] = *pBoard;
_Descend(depth, -INFINITY, INFINITY, 1);
if (*px == -1) {
return 0;
}
return 1;
}
/**
* @brief callback Message Box
* @param pMsg : pointer to data structure
* @retval None
*/
static void _cbMessageBox(WM_MESSAGE* pMsg) {
WM_HWIN hWin;
int Id;
hWin = pMsg->hWin;
switch (pMsg->MsgId) {
case WM_NOTIFY_PARENT:
if (pMsg->Data.v == WM_NOTIFICATION_RELEASED) {
Id = WM_GetId(pMsg->hWinSrc);
GUI_EndDialog(hWin, (Id == GUI_ID_OK) ? 1 : 0);
}
break;
default:
WM_DefaultProc(pMsg);
}
}
/**
* @brief Show Message Box
* @param pTitle: pointer to the title
* @param pText: pointer to the text
* @param YesNo player response
* @retval int
*/
static int _ShowMessageBox(WM_HWIN hWin, const char* pTitle, const char* pText, int YesNo) {
WM_HWIN hFrame, hClient, hBut;
int r = 0;
/* Create frame win */
hFrame = FRAMEWIN_CreateEx(225, 180, 190, 120, hWin, WM_CF_SHOW, FRAMEWIN_CF_MOVEABLE, 0, pTitle, &_cbMessageBox);
FRAMEWIN_SetClientColor (hFrame, GUI_WHITE);
FRAMEWIN_SetFont (hFrame, &GUI_Font16B_ASCII);
FRAMEWIN_SetTextAlign (hFrame, GUI_TA_HCENTER);
/* Create dialog items */
hClient = WM_GetClientWindow(hFrame);
TEXT_CreateEx(10, 7, 170, 30, hClient, WM_CF_SHOW, GUI_TA_HCENTER, 0, pText);
if (YesNo) {
hBut = BUTTON_CreateEx(97, 45, 55, 18, hClient, WM_CF_SHOW, 0, GUI_ID_CANCEL);
BUTTON_SetText (hBut, "No");
hBut = BUTTON_CreateEx(32, 45, 55, 18, hClient, WM_CF_SHOW, 0, GUI_ID_OK);
BUTTON_SetText (hBut, "Yes");
} else {
hBut = BUTTON_CreateEx(64, 45, 55, 18, hClient, WM_CF_SHOW, 0, GUI_ID_OK);
BUTTON_SetText (hBut, "Ok");
}
WM_SetFocus(_hFrame);
WM_MakeModal(hFrame);
r = GUI_ExecCreatedDialog(hFrame);
return r;
}
/**
* @brief Set Player
* @param Player: player index
* @retval None
*/
static void _SetPlayer(int Player) {
int Score, ValidMoves, PossibleMoves;
char ac[256];
_Board.ActPlayer = Player;
if (Player == 1) {
FRAMEWIN_SetText(_hFrame, "Reversi - User");
} else {
FRAMEWIN_SetText(_hFrame, "Reversi - CPU");
}
FRAMEWIN_SetBarColor(_hFrame, 1, (Player == 1) ? GUI_RED : GUI_BLUE);
PossibleMoves = _CalcValidMoves(&_Board);
GUI_Exec();
if (!PossibleMoves) {
GUI_Exec();
_Board.ActPlayer = 3 - Player;
ValidMoves = _CalcValidMoves(&_Board);
_Board.ActPlayer = Player;
_CalcValidMoves(&_Board);
if (ValidMoves) { /* No valid moves, player must pass */
if (_pPlayerAI[_Board.ActPlayer - 1] == NULL) {
_ShowMessageBox(_hFrame, "Reversi", "No possible moves.\nYou have to pass!", 0);
} else {
/* Pass ai player */
}
_SetPlayer(3 - _Board.ActPlayer);
} else { /* No valid moves for all players, game is over */
_GameOver = 1;
_Board.ActPlayer = 1;
Score = _CalcScore(&_Board);
if (Score > 0) {
sprintf(ac, "Red wins by %d stones!\nDo you want to start a new game?", Score);
} else if (Score) {
sprintf(ac, "Blue wins by %d stones!\nDo you want to start a new game?", -Score);
} else {
strcpy(ac, "The game ends in a draw!\nDo you want to start a new game?");
}
if (_ShowMessageBox(_hFrame, "Reversi", ac, 1)) {
_StartNewGame();
}
}
}
}
/**
* @brief Next Player
* @param None
* @retval None
*/
static void _NextPlayer(void) {
int x, y;
do {
_SetPlayer(3 - _Board.ActPlayer);
if (_pPlayerAI[_Board.ActPlayer - 1]&& !_GameOver) {
char DoMove;
DoMove = (*_pPlayerAI[_Board.ActPlayer - 1])(&_Board, &x, &y);
if (DoMove) {
_MakeMove(&_Board, x, y);
}
}
} while (_pPlayerAI[_Board.ActPlayer - 1] && !_GameOver);
}
/**
* @brief Start new Game
* @param None
* @retval None
*/
static void _StartNewGame(void) {
memset(&_Board, 0, sizeof(BOARD));
_Board.aCells[3][3] = 1;
_Board.aCells[4][4] = 1;
_Board.aCells[3][4] = 2;
_Board.aCells[4][3] = 2;
_GameOver = 0;
_SetPlayer(1);
_InvalidateBoard();
}
/**
* @brief Handle PID
* @param x: X position
* @param y: Y position
* @param Pressed: touch status
* @retval None
*/
static void _HandlePID(int x, int y, int Pressed) {
static int _IsInHandlePID;
if (_IsInHandlePID++ == 0) {
_CalcBoardDimensions();
x -= _BoardX0;
y -= _BoardY0;
if ((x >= 0) && (y >= 0)) {
x /= _CellSize;
y /= _CellSize;
if ((x < 8) && (y < 8)) {
if (_IsValidMove(&_Board, x, y)) {
if (Pressed == 0) {
_MakeMove(&_Board, x, y);
_NextPlayer();
}
goto EndHandlePID;
}
}
}
}
EndHandlePID:
_IsInHandlePID--;
}
/**
* @brief _OnTouch
* @param pMsg : pointer to data structure
* @retval None
*/
static void _OnTouch(WM_MESSAGE* pMsg) {
const GUI_PID_STATE* pState = (const GUI_PID_STATE*)pMsg->Data.p;
if (pState)
{
_HandlePID(pState->x, pState->y, pState->Pressed);
}
}
/**
* @brief Paints callback
* @param hWin: pointer to the parent handle
* @retval None
*/
static void _OnPaint(WM_HWIN hWin) {
GUI_COLOR Color;
GUI_RECT r;
int x, y, xPos, yPos;
int CellSize, rStone, remove;
char Cell, IsValidMove;
int xCircle, yCircle;
_CalcBoardDimensions();
GUI_AA_SetFactor(AA_FACTOR);
#if AA_USE_HIRES
GUI_AA_EnableHiRes();
#endif
LCD_SetBkColor(CLIENT_COLOR);
WM_GetClientRectEx(hWin, &r);
GUI_ClearRect(r.x0, r.y0, r.x1, _BoardY0 - 1);
GUI_ClearRect(r.x0, _BoardY0, _BoardX0 - 1, _BoardY0 + (8 * _CellSize));
GUI_ClearRect(_BoardX0 + (8 * _CellSize) + 1, _BoardY0, r.x1, _BoardY0 + (8 * _CellSize));
GUI_ClearRect(r.x0, _BoardY0 + (8 * _CellSize) + 1, r.x1, r.y1);
CellSize = _CellSize - 1;
rStone = ((CellSize - 3) * AA_CALCFACTOR) >> 1;
remove = ((CellSize - 2) * AA_CALCFACTOR) >> 3;
if (rStone < AA_CALCFACTOR) {
rStone = AA_CALCFACTOR;
}
if (remove < (AA_CALCFACTOR >> AA_USE_HIRES)) {
remove = (AA_CALCFACTOR >> AA_USE_HIRES);
}
for (yPos = _BoardY0, y = 0; y < 8; y++) {
for (xPos = _BoardX0, x = 0; x < 8; x++) {
Color = ((x + (y & 1)) & 1) ? (GUI_LIGHTGRAY) : (GUI_WHITE);
LCD_SetColor(Color);
GUI_FillRect(xPos + 1, yPos + 1, xPos + CellSize, yPos + CellSize);
Cell = _GetStone(&_Board, x, y);
IsValidMove = (_ShowPossibleMoves) ? _IsValidMove(&_Board, x, y) : 0;
if (_pPlayerAI[_Board.ActPlayer - 1]) {
IsValidMove = 0;
}
if (Cell || IsValidMove) {
xCircle = (xPos + 1) * AA_CALCFACTOR + ((CellSize * AA_CALCFACTOR) >> 1);
yCircle = (yPos + 1) * AA_CALCFACTOR + ((CellSize * AA_CALCFACTOR) >> 1);
if (Cell) {
Color = (Cell == 1) ? (GUI_RED) : (GUI_BLUE);
LCD_SetColor(Color);
#if (AA_FACTOR > 1)
GUI_AA_FillCircle(xCircle, yCircle, rStone);
#else
GUI_FillCircle(xCircle, yCircle, rStone);
#endif
} else {
LCD_SetColor(GUI_BLACK);
#if (AA_FACTOR > 1)
GUI_AA_FillCircle(xCircle, yCircle, remove);
#else
GUI_FillCircle(xCircle, yCircle, remove);
#endif
}
}
LCD_SetColor(GRID_COLOR);
GUI_DrawVLine(xPos, yPos + 1, yPos + CellSize);
xPos += _CellSize;
}
GUI_DrawVLine(xPos, yPos + 1, yPos + CellSize);
GUI_DrawHLine(yPos, _BoardX0, _BoardX0 + (_CellSize << 3));
yPos += _CellSize;
}
GUI_DrawHLine(yPos, _BoardX0, _BoardX0 + (_CellSize << 3));
}
/**
* @brief callback Reversi Win
* @param pMsg: pointer to data structure
* @retval None
*/
static void _cbReversiWin(WM_MESSAGE* pMsg) {
WM_HWIN hWin = pMsg->hWin;
switch (pMsg->MsgId) {
case WM_PAINT:
_OnPaint(hWin);
break;
case WM_TOUCH:
_OnTouch(pMsg);
break;
case WM_DELETE:
_hFrame = 0;
break;
default:
WM_DefaultProc(pMsg);
}
}
/**
* @brief Game window Startup
* @param hWin: pointer to the parent handle.
* @param xpos: X position
* @param ypos: Y position
* @retval None
*/
static void Startup(WM_HWIN hWin, uint16_t xpos, uint16_t ypos)
{
_pPlayerAI[1] = _PlayerAI_SmartGecko;
_hFrame = FRAMEWIN_CreateEx(xpos, ypos, 640, 439, hWin, WM_CF_SHOW, FRAMEWIN_CF_ACTIVE, 0, NULL, &_cbReversiWin);
FRAMEWIN_SetClientColor(_hFrame, GUI_INVALID_COLOR);
FRAMEWIN_SetFont (_hFrame, GUI_FONT_24_ASCII);
FRAMEWIN_AddCloseButton(_hFrame, FRAMEWIN_BUTTON_RIGHT, 0);
_StartNewGame();
}
/**
* @}
*/
/**
* @}
*/