Arduino Due TIC TAC TOE with Touchscreen

1      /////////////////////////////////////////////
2     //    2.8"   TOUCH SCREEN TIC TAC TOE        //
3    //                                         //
4    //          http://www.educ8s.tv           //
5  //                                         //
6   //         modified 08.2017 by rom3        // 
7/////////////////////////////////////////////
8
9#include   <SPI.h>
10#include <Adafruit_GFX.h>
11#include <Adafruit_ILI9341.h>
12#include   <URTouch.h>
13
14#define TFT_RST 8
15#define TFT_DC 9
16#define TFT_CS 10
17#define   TOUCH_ORIENTATION  LANDSCAPE
18
19Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS,   TFT_DC, TFT_RST);
20
21Adafruit_GFX_Button buttons[9];
22
23URTouch  myTouch(30,   28, 26, 24, 22);
24
25char start[10] = {"Gamestart"};
26char you[4] = {"YOU"};
27char   cpu[4] = {"CPU"};
28char again[7] = {"Again?"};
29int player;
30int difficulty=8;
31unsigned   short int x,y,b; // position touch
32
33#define BLACK   0x0000
34#define BLUE     0x001F
35#define RED     0xF800
36#define GREEN   0x07E0
37#define CYAN    0x07FF
38#define   MAGENTA 0xF81F
39#define YELLOW  0xFFE0
40#define WHITE   0xFFFF
41
42int board[]={0,0,0,0,0,0,0,0,0};//   holds position data 0 is blank, 1 human, 2 is computer
43unsigned turn;
44
45const   unsigned char circle[]PROGMEM={
460b0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
470x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x7,0xf8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xf0,0x0,0x0,0x0,
480x0,0x0,0xf,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x7f,0xf0,0x3,0xff,0x80,0x0,0x0,0x0,0x0,0xff,0x80,0x0,0x7f,0xc0,0x0,0x0,0x0,0x1,0xfe,0x0,0x0,0x1f,0xe0,0x0,0x0,
490x0,0x3,0xf8,0x0,0x0,0x7,0xf0,0x0,0x0,0x0,0x7,0xf0,0x0,0x0,0x3,0xf8,0x0,0x0,0x0,0xf,0xe0,0x0,0x0,0x1,0xfc,0x0,0x0,0x0,0xf,0xc0,0x0,0x0,0x0,0xfc,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x0,0x7e,0x0,0x0,
500x0,0x3f,0x0,0x0,0x0,0x0,0x3f,0x0,0x0,0x0,0x3e,0x0,0x0,0x0,0x0,0x1f,0x0,0x0,0x0,0x7e,0x0,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,
510x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf0,0x0,0x0,0x0,0x0,0x3,0xc0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,
520x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,
530x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x0,0xf0,0x0,0x0,0x0,0x0,0x3,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,
540x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,0x0,0x7e,0x0,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x3e,0x0,0x0,0x0,0x0,0x1f,0x0,0x0,
550x0,0x3f,0x0,0x0,0x0,0x0,0x3f,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x0,0x7e,0x0,0x0,0x0,0xf,0xc0,0x0,0x0,0x0,0xfc,0x0,0x0,0x0,0xf,0xe0,0x0,0x0,0x1,0xfc,0x0,0x0,0x0,0x7,0xf0,0x0,0x0,0x3,0xf8,0x0,0x0,
560x0,0x3,0xf8,0x0,0x0,0x7,0xf0,0x0,0x0,0x0,0x1,0xfe,0x0,0x0,0x1f,0xe0,0x0,0x0,0x0,0x0,0xff,0x80,0x0,0x7f,0xc0,0x0,0x0,0x0,0x0,0x7f,0xf0,0x3,0xff,0x80,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfe,0x0,0x0,0x0,
570x0,0x0,0xf,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xf0,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x7,0xf8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
580x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0
59};
60const   unsigned char x_bitmap[]PROGMEM={
610x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
620x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xc0,0x1,0xff,0xff,0xe0,0x0,
630x1,0xff,0xff,0xe0,0x1,0xff,0xff,0xc0,0x0,0x1,0xff,0xff,0xf0,0x3,0xff,0xff,0xc0,0x0,0x0,0xff,0xff,0xf0,0x7,0xff,0xff,0x80,0x0,0x0,0xff,0xff,0xf8,0x7,0xff,0xff,0x80,0x0,0x0,0x7f,0xff,0xf8,0xf,0xff,0xff,0x0,0x0,
640x0,0x3f,0xff,0xfc,0xf,0xff,0xfe,0x0,0x0,0x0,0x3f,0xff,0xfe,0x1f,0xff,0xfe,0x0,0x0,0x0,0x1f,0xff,0xfe,0x1f,0xff,0xfc,0x0,0x0,0x0,0x1f,0xff,0xff,0x3f,0xff,0xfc,0x0,0x0,0x0,0xf,0xff,0xff,0x7f,0xff,0xf8,0x0,0x0,
650x0,0xf,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xf0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,
660x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,
670x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,
680x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,
690x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xf0,0x0,0x0,0x0,0xf,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,
700x0,0xf,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,0x0,0x1f,0xff,0xff,0x7f,0xff,0xfc,0x0,0x0,0x0,0x1f,0xff,0xfe,0x3f,0xff,0xfc,0x0,0x0,0x0,0x3f,0xff,0xfc,0x3f,0xff,0xfe,0x0,0x0,0x0,0x3f,0xff,0xfc,0x1f,0xff,0xfe,0x0,0x0,
710x0,0x7f,0xff,0xf8,0x1f,0xff,0xff,0x0,0x0,0x0,0xff,0xff,0xf8,0xf,0xff,0xff,0x80,0x0,0x0,0xff,0xff,0xf0,0x7,0xff,0xff,0x80,0x0,0x1,0xff,0xff,0xe0,0x7,0xff,0xff,0xc0,0x0,0x1,0xff,0xff,0xe0,0x3,0xff,0xff,0xc0,0x0,
720x3,0xff,0xff,0xc0,0x3,0xff,0xff,0xe0,0x0,0x3,0xff,0xff,0xc0,0x1,0xff,0xff,0xe0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
730x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0
74};
75
76
77void   setup()
78{
79myTouch.InitTouch();
80  myTouch.setPrecision(PREC_HI);
81  tft.begin();
82   tft.setRotation(3);
83}
84
85void loop()
86{
87   int board[9] = {0,0,0,0,0,0,0,0,0};
88
89    drawStartScreen();
90    do{
91    myTouch.read();
92      x = myTouch.getX();   //Get touch point  
93      y = myTouch.getY();
94   delay(100);
95   }while(!(buttons[0].contains(x,y)));
96
97    tft.fillScreen(BLACK);
98    //Draw white frame
99    tft.drawRect(0,0,320,240,WHITE);
100     //Print "Tic Tac Toe" Text
101    tft.setCursor(30,30);
102    tft.setTextColor(WHITE);
103     tft.setTextSize(4);
104    tft.print("Tic Tac Toe");
105    //Print "YouTube!"   text 
106    tft.setCursor(30,100);
107    tft.setTextColor(GREEN);
108    tft.setTextSize(4);
109     tft.print("Who begins");
110    //Create Red Button
111    // create buttons   // x, y, w, h, outline, fill, text
112          buttons[0].initButton(&tft, 100,200,80,40,WHITE,   RED, WHITE,
113                      you, 2); 
114          buttons[0].drawButton();
115           // create buttons // x, y, w, h, outline, fill, text
116          buttons[1].initButton(&tft,   200,200,80,40,WHITE, RED, WHITE,
117                      cpu, 2); 
118          buttons[1].drawButton();
119     b=1;
120    do{
121    myTouch.read();
122      x = myTouch.getX();  //Get touch   point  
123      y = myTouch.getY();
124    if (buttons[0].contains(x,y))
125    {
126       b=0;
127      player = 1;
128      tft.fillScreen(BLACK);
129      //Draw   white frame
130      tft.drawRect(0,0,320,240,WHITE);
131      tft.setCursor(30,30);
132       tft.setTextColor(WHITE);
133      tft.setTextSize(2);
134      tft.print("Ok,   you begin.");
135      delay(2000);
136    }
137      if(buttons[1].contains(x,y))
138       {
139        b=0;
140        player = 2;
141        tft.fillScreen(BLACK);
142         //Draw white frame
143        tft.drawRect(0,0,320,240,WHITE);
144        tft.setCursor(30,30);
145         tft.setTextColor(WHITE);
146        tft.setTextSize(2);
147        tft.print("Ok,   CPU begins."); 
148        delay(2000);
149       }
150    }while(b);
151    
152     tft.fillScreen(BLACK);
153    tft.drawRect(0,0,319,240,WHITE);
154   
155   drawVerticalLine(125);
156    drawVerticalLine(195);
157   drawHorizontalLine(80);
158   drawHorizontalLine(150);
159    
160       for(turn = 0; turn < 9 && win(board) == 0; ++turn) {
161        if((turn+player)   % 2 == 0)
162            computerMove(board);
163            else {
164            //draw(board);
165             playerMove(board);
166        }
167    }
168    switch(win(board)) {
169         case 0:
170            Serial.println("It's a draw.\
171");
172            break;
173         case 1:
174            //draw(board);
175            Serial.println("You   lose.\
176");
177            break;
178        case -1:
179            Serial.println("You   win!\
180");
181            break;
182    }
183   do{}while(myTouch.dataAvailable()==false);   
184      //x = map(tp.y, 930, 88, 0, 480);
185      //y = map(tp.x, 908, 125, 0,   320);
186      //delay(250);}
187    }
188void drawHorizontalLine(int y)
189{
190   int i=0;
191  for(i=0;i<7;i++)
192  {
193    tft.drawLine(60,y+i,270,y+i,WHITE);
194   }
195}
196
197void drawVerticalLine(int x)
198{
199  int i=0;
200  for(i=0;i<7;i++)
201   {
202    tft.drawLine(x+i,20,x+i,220,WHITE);
203  }
204}
205void drawStartScreen()
206{
207    tft.fillScreen(BLACK);
208  
209  //Draw white frame
210  tft.drawRect(0,0,319,240,WHITE);
211   
212  //Print "Tic Tac Toe" Text
213  tft.setCursor(30,100);
214  tft.setTextColor(WHITE);
215   tft.setTextSize(4);
216  tft.print("Tic Tac Toe");
217  
218  //Print "YouTube!"   text 
219  tft.setCursor(80,30);
220  tft.setTextColor(GREEN);
221  tft.setTextSize(4);
222   tft.print("Arduino");
223
224  buttons[0].initButton(&tft, 160,200,200,40,WHITE,   RED, WHITE, start, 2); 
225          buttons[0].drawButton();
226  
227}
228
229void   drawCircle(int x, int y)
230{
231  drawBitmap(x,y,circle,65,65,RED);
232}
233
234void   drawX(int x, int y)
235{
236  drawBitmap(x,y,x_bitmap,65,65,BLUE);
237}
238void   drawBitmap(int16_t x, int16_t y,
239 const uint8_t *bitmap, int16_t w, int16_t h,   uint16_t color) {
240
241  int16_t i, j, byteWidth = (w + 7) / 8;
242  uint8_t byte;
243
244   for(j=0; j<h; j++) {
245    for(i=0; i<w; i++) {
246      if(i & 7) byte <<= 1;
247       else      byte   = pgm_read_byte(bitmap + j * byteWidth + i / 8);
248      if(byte   & 0x80) tft.drawPixel(x+i, y+j, color);
249    }
250  }
251}
252void computerMove(int   board[9]) {
253    int move = -1;
254    int score = -2;
255    int i;
256    for(i   = 0; i < 9; ++i) {
257        if(board[i] == 0) {
258            board[i] = 1;
259             int tempScore = -minimax(board, -1, 0);
260            board[i] = 0;
261             if(tempScore > score) {
262                score = tempScore;
263                move   = i;
264            }
265        }
266    }
267    //returns a score based on minimax   tree at a given node.
268    board[move] = 1;
269    drawCpuMove(move);
270    delay(100);
271}
272
273void   playerMove(int board[9]) {
274    int move = 0;
275    b = 1;
276      do{    
277     if (myTouch.dataAvailable() == true)
278    {
279      myTouch.read();
280      x   = myTouch.getX();  //Get touch point  
281      y = myTouch.getY();
282      
283       if((x>55 && x<125)&& (y>0 && y<80)) //0
284      {
285        if(board[0]==0)
286         {
287          move=0;
288          b=0;  
289          }
290      }
291        else if((x>125 && x<195) && (y>0 && y<80)) //1
292      {
293       
294         if(board[1]==0)
295        {
296         move=1;
297         b=0;  
298         }
299      }
300       else if((x>195&&x<265)&& (y>0 && y<80)) //2
301       {
302         if(board[2]==0)
303        {
304         move=2;
305         b=0;  
306         }
307      }
308
309    else if((x>55 && x<125)&& (y>80 && y<155)) //3
310       {
311        if(board[3]==0)
312        {
313         move=3;
314         b=0;   
315        }
316      }
317
318       else if((x>125 && x<195)&& (y>80 && y<155))   //4
319      {
320        if(board[4]==0)
321        {
322         move=4;
323         b=0;   
324        }
325      }
326
327      else if((x>195&&x<265)&& (y>80 && y<155))   //5
328      {
329        if(board[5]==0)
330        {
331         move=5;
332         b=0;   
333        }
334      }
335
336       else if((x>55 && x<125)&& (y>155 && y<235))   //6
337      {
338        if(board[6]==0)
339        {
340         move=6;
341         b=0;   
342        }
343      }
344
345        else if((x>125 && x<195)&& (y>155 && y<235))   //7
346      {
347        if(board[7]==0)
348        {
349         move=7;
350         b=0;   
351        }
352      }
353
354       else if((x>195&&x<265)&& (y>155 && y<235))   //8
355      {
356        if(board[8]==0)
357        {
358         move=8;
359         b=0;   
360        }
361      }
362      
363    }
364   }while(b);
365    board[move]   = -1;
366    drawPlayerMove(move);
367    delay(100);
368}
369int win(const int   board[9]) {
370    //list of possible winning positions
371    unsigned wins[8][3]   = {{0,1,2},{3,4,5},{6,7,8},{0,3,6},{1,4,7},{2,5,8},{0,4,8},{2,4,6}};
372    int   winPos;
373    for(winPos = 0; winPos < 8; ++winPos) {
374        if(board[wins[winPos][0]]   != 0 && board[wins[winPos][0]] == board[wins[winPos][1]] && board[wins[winPos][0]]   == board[wins[winPos][2]])
375            return board[wins[winPos][2]];
376    }
377     return 0;
378}
379
380int minimax(int board[9], int player, int depth) {
381     //check the positions for players
382    int winner = win(board);
383    if(winner   != 0) return winner*player;
384
385    int move = -1;
386    int score = -2;
387     int i;
388    for(i = 0; i < 9; ++i) {
389     
390        if(board[i] == 0)   {
391            board[i] = player;
392            int thisScore=0;
393            if   (depth<difficulty){
394              thisScore = -minimax(board, player*-1,depth+1);
395             }
396            
397            if(thisScore > score) {
398                score   = thisScore;
399                move = i;
400            }
401            //choose   the worst move for opponent
402            board[i] = 0;
403        }
404    }
405     if(move == -1) return 0;
406    return score;
407}
408void drawCpuMove(int move)
409{
410   switch(move)
411  {
412    case 0: drawCircle(55,15);  break;
413    case 1: drawCircle(130,15);   break;
414    case 2: drawCircle(205,15); break;
415    case 3: drawCircle(55,85);   break;
416    case 4: drawCircle(130,85); break;
417    case 5: drawCircle(205,85);   break;
418    case 6: drawCircle(55,155); break;
419    case 7: drawCircle(130,155);break;
420     case 8: drawCircle(205,155);break;
421  }
422}
423
424void drawPlayerMove(int   move)
425{
426  switch(move)
427  {
428    case 0: drawX(55,15);  break;
429    case   1: drawX(130,15); break;
430    case 2: drawX(205,15); break;
431    case 3: drawX(55,85);   break;
432    case 4: drawX(130,85); break;
433    case 5: drawX(205,85); break;
434     case 6: drawX(55,155); break;
435    case 7: drawX(130,155);break;
436    case   8: drawX(205,155);break;
437  }
438}
439
440

1      /////////////////////////////////////////////
2     //    2.8"  TOUCH SCREEN TIC TAC TOE        //
3    //                                         //
4   //          http://www.educ8s.tv           //
5  //                                         //
6  //         modified 08.2017 by rom3        // 
7/////////////////////////////////////////////
8
9#include  <SPI.h>
10#include <Adafruit_GFX.h>
11#include <Adafruit_ILI9341.h>
12#include  <URTouch.h>
13#include <avr/pgmspace.h>
14
15#define TFT_RST 8
16#define TFT_DC  9
17#define TFT_CS 10
18#define TOUCH_ORIENTATION  LANDSCAPE
19
20Adafruit_ILI9341  tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
21
22Adafruit_GFX_Button buttons[9];
23
24URTouch  myTouch(30, 28, 26, 24, 22);
25
26unsigned short int moves = 1; 
27unsigned  short int winner = 0;  //0 = Draw, 1 = Human, 2 = CPU
28unsigned short int x,y;  // position touch
29unsigned short int cursor; // Cursor position
30unsigned short  int firstMoves[]={0,2,6,8}; // will use these positions first, if CPU begins
31unsigned  short int board[] = {0,0,0,0,0,0,0,0,0};// holds position data 0 is blank, 1 human,  2 is computer
32bool player; // true=YOU, false=CPU
33bool b=1; 
34
35char start[10]  = {"Gamestart"};
36char you[4] = {"YOU"};
37char cpu[4] = {"CPU"};
38char  again[7] = {"Again?"};
39 
40const unsigned char circle[]PROGMEM={
410b0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
420x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x7,0xf8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xf0,0x0,0x0,0x0,
430x0,0x0,0xf,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x7f,0xf0,0x3,0xff,0x80,0x0,0x0,0x0,0x0,0xff,0x80,0x0,0x7f,0xc0,0x0,0x0,0x0,0x1,0xfe,0x0,0x0,0x1f,0xe0,0x0,0x0,
440x0,0x3,0xf8,0x0,0x0,0x7,0xf0,0x0,0x0,0x0,0x7,0xf0,0x0,0x0,0x3,0xf8,0x0,0x0,0x0,0xf,0xe0,0x0,0x0,0x1,0xfc,0x0,0x0,0x0,0xf,0xc0,0x0,0x0,0x0,0xfc,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x0,0x7e,0x0,0x0,
450x0,0x3f,0x0,0x0,0x0,0x0,0x3f,0x0,0x0,0x0,0x3e,0x0,0x0,0x0,0x0,0x1f,0x0,0x0,0x0,0x7e,0x0,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,
460x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf0,0x0,0x0,0x0,0x0,0x3,0xc0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,
470x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,
480x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x1,0xf0,0x0,0x0,0x0,0x0,0x3,0xe0,0x0,0x0,0xf0,0x0,0x0,0x0,0x0,0x3,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,
490x0,0xf8,0x0,0x0,0x0,0x0,0x7,0xc0,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,0x0,0x7c,0x0,0x0,0x0,0x0,0xf,0x80,0x0,0x0,0x7e,0x0,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x3e,0x0,0x0,0x0,0x0,0x1f,0x0,0x0,
500x0,0x3f,0x0,0x0,0x0,0x0,0x3f,0x0,0x0,0x0,0x1f,0x80,0x0,0x0,0x0,0x7e,0x0,0x0,0x0,0xf,0xc0,0x0,0x0,0x0,0xfc,0x0,0x0,0x0,0xf,0xe0,0x0,0x0,0x1,0xfc,0x0,0x0,0x0,0x7,0xf0,0x0,0x0,0x3,0xf8,0x0,0x0,
510x0,0x3,0xf8,0x0,0x0,0x7,0xf0,0x0,0x0,0x0,0x1,0xfe,0x0,0x0,0x1f,0xe0,0x0,0x0,0x0,0x0,0xff,0x80,0x0,0x7f,0xc0,0x0,0x0,0x0,0x0,0x7f,0xf0,0x3,0xff,0x80,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfe,0x0,0x0,0x0,
520x0,0x0,0xf,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xf0,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x7,0xf8,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
530x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0
54};
55
56const  unsigned char x_bitmap[]PROGMEM={
570x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
580x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xc0,0x1,0xff,0xff,0xe0,0x0,
590x1,0xff,0xff,0xe0,0x1,0xff,0xff,0xc0,0x0,0x1,0xff,0xff,0xf0,0x3,0xff,0xff,0xc0,0x0,0x0,0xff,0xff,0xf0,0x7,0xff,0xff,0x80,0x0,0x0,0xff,0xff,0xf8,0x7,0xff,0xff,0x80,0x0,0x0,0x7f,0xff,0xf8,0xf,0xff,0xff,0x0,0x0,
600x0,0x3f,0xff,0xfc,0xf,0xff,0xfe,0x0,0x0,0x0,0x3f,0xff,0xfe,0x1f,0xff,0xfe,0x0,0x0,0x0,0x1f,0xff,0xfe,0x1f,0xff,0xfc,0x0,0x0,0x0,0x1f,0xff,0xff,0x3f,0xff,0xfc,0x0,0x0,0x0,0xf,0xff,0xff,0x7f,0xff,0xf8,0x0,0x0,
610x0,0xf,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xf0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,
620x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,
630x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,
640x0,0x0,0x3f,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,
650x0,0x1,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xf0,0x0,0x0,0x0,0xf,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,
660x0,0xf,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,0x0,0x1f,0xff,0xff,0x7f,0xff,0xfc,0x0,0x0,0x0,0x1f,0xff,0xfe,0x3f,0xff,0xfc,0x0,0x0,0x0,0x3f,0xff,0xfc,0x3f,0xff,0xfe,0x0,0x0,0x0,0x3f,0xff,0xfc,0x1f,0xff,0xfe,0x0,0x0,
670x0,0x7f,0xff,0xf8,0x1f,0xff,0xff,0x0,0x0,0x0,0xff,0xff,0xf8,0xf,0xff,0xff,0x80,0x0,0x0,0xff,0xff,0xf0,0x7,0xff,0xff,0x80,0x0,0x1,0xff,0xff,0xe0,0x7,0xff,0xff,0xc0,0x0,0x1,0xff,0xff,0xe0,0x3,0xff,0xff,0xc0,0x0,
680x3,0xff,0xff,0xc0,0x3,0xff,0xff,0xe0,0x0,0x3,0xff,0xff,0xc0,0x1,0xff,0xff,0xe0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,
690x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0
70};
71
72void  setup() {
73  myTouch.InitTouch();
74  myTouch.setPrecision(PREC_HI);
75  tft.begin();
76  tft.setRotation(3);
77  tft.fillScreen(ILI9341_BLACK);
78  //Draw white frame
79  tft.drawRect(0,0,320,240,ILI9341_WHITE);
80  //Print "Arduino" text 
81  tft.setCursor(80,30);
82  tft.setTextColor(ILI9341_GREEN);
83  tft.setTextSize(4);
84  tft.print("Arduino");
85  //Print "Tic Tac Toe" Text
86  tft.setCursor(30,100);
87  tft.setTextColor(ILI9341_WHITE);
88  tft.setTextSize(4);
89  tft.print("Tic Tac Toe");
90  //Create Red Button
91  // create buttons // x, y, w, h, outline, fill, text
92          buttons[0].initButton(&tft,  160,200,200,40,ILI9341_WHITE, ILI9341_RED, ILI9341_WHITE,
93                      start,  2); 
94          buttons[0].drawButton();
95do{
96  waitonetouch(&x,&y);
97  if (buttons[0].contains(x,y))
98  b=0;
99}while(b>0); 
100}
101void loop() 
102{
103  for(unsigned short int i=0;i<9;i++)
104    {
105      board[i]=0;
106    }
107    tft.fillScreen(ILI9341_BLACK);
108    //Draw white frame
109    tft.drawRect(0,0,320,240,ILI9341_WHITE);
110    //Print "Tic Tac Toe" Text
111    tft.setCursor(30,30);
112    tft.setTextColor(ILI9341_WHITE);
113    tft.setTextSize(4);
114    tft.print("Tic Tac Toe");
115    //Print "YouTube!"  text 
116    tft.setCursor(30,100);
117    tft.setTextColor(ILI9341_GREEN);
118    tft.setTextSize(4);
119    tft.print("Who begins");
120    //Create Red Button
121    // create buttons // x, y, w, h, outline, fill, text
122          buttons[0].initButton(&tft,  100,200,80,40,ILI9341_WHITE, ILI9341_RED, ILI9341_WHITE,
123                      you,  2); 
124          buttons[0].drawButton();
125          // create buttons // x,  y, w, h, outline, fill, text
126          buttons[1].initButton(&tft, 200,200,80,40,ILI9341_WHITE,  ILI9341_RED, ILI9341_WHITE,
127                      cpu, 2); 
128          buttons[1].drawButton();
129    b=1;
130    do{
131    waitonetouch(&x,&y);
132    if (buttons[0].contains(x,y))
133    {
134      b=0;
135      player = 1;
136      tft.fillScreen(ILI9341_BLACK);
137      //Draw white frame
138      tft.drawRect(0,0,320,240,ILI9341_WHITE);
139      tft.setCursor(30,30);
140      tft.setTextColor(ILI9341_WHITE);
141      tft.setTextSize(2);
142      tft.print("Ok,  you begin.");
143      delay(2000);
144    }
145      if(buttons[1].contains(x,y))
146      {
147        b=0;
148        player = 0;
149        tft.fillScreen(ILI9341_BLACK);
150        //Draw white frame
151        tft.drawRect(0,0,320,240,ILI9341_WHITE);
152        tft.setCursor(30,30);
153        tft.setTextColor(ILI9341_WHITE);
154        tft.setTextSize(2);
155        tft.print("Ok, CPU begins."); 
156        delay(2000);
157       }
158    }while(b>0);
159    b=1;
160    moves = 1; 
161    winner = 0;
162    cursor  = 10;
163         
164    tft.fillScreen(ILI9341_BLACK);
165
166    //Draw frame
167    tft.drawRect(0,0,320,240,ILI9341_WHITE);
168    //Draw vertical line
169    tft.fillRect(80,15,5,205,ILI9341_WHITE);  
170    tft.fillRect(150,15,5,205,ILI9341_WHITE);
171    //Draw horizontal line
172    tft.fillRect(15,80,205,5,ILI9341_WHITE);
173    tft.fillRect(15,150,205,5,ILI9341_WHITE);
174    tft.drawRect(230,10,80,220,ILI9341_WHITE);
175    {
176  do
177  {
178    if(moves%2==1  && player==false || moves%2==0 && player==true)
179    {
180     cursor+=10;
181     tft.setCursor(240,cursor);
182     tft.setTextSize(1);
183     tft.println("I  draw");
184     arduinoMove();
185     checkWinner();
186    }else
187    {
188      cursor+=10;
189      tft.setCursor(240,cursor);
190      tft.setTextSize(1);
191      tft.println("Your move");
192      playerMove(); 
193      checkWinner();  
194    }
195    delay(1000);
196    moves++;
197  }while (winner==0 && moves<10);  
198  waitonetouch(&x,&y);
199  tft.fillScreen(ILI9341_BLACK);
200
201  //Draw frame
202  tft.drawRect(0,0,320,240,ILI9341_WHITE);
203
204  //Print "Game Over" Text
205  tft.setCursor(50,30);
206  tft.setTextColor(ILI9341_WHITE);
207  tft.setTextSize(4);
208  tft.print("GAME OVER");
209  
210  if(winner == 0)
211{
212  //Print "DRAW!"  text 
213  tft.setCursor(110,100);
214  tft.setTextColor(ILI9341_YELLOW);
215  tft.setTextSize(4);
216  tft.print("DRAW");
217}
218 if(winner == 1)
219{
220  //Print "HUMAN WINS!"  text 
221  tft.setCursor(40,100);
222  tft.setTextColor(ILI9341_BLUE);
223  tft.setTextSize(4);
224  tft.print("HUMAN WINS");
225}
226
227 if(winner == 2)
228{
229  //Print "CPU  WINS!" text 
230  tft.setCursor(60,100);
231  tft.setTextColor(ILI9341_RED);
232  tft.setTextSize(4);
233  tft.print("CPU WINS");
234}
235  // create buttons  // x, y, w, h, outline, fill, text
236          buttons[0].initButton(&tft, 160,200,200,40,ILI9341_WHITE,  ILI9341_RED, ILI9341_WHITE,
237                      again, 2); 
238          buttons[0].drawButton();
239  do{
240   waitonetouch(&x,&y);
241   if (buttons[0].contains(x,y))
242   b=0;
243    }while(b>0);
244  }
245} 
246
247void playerMove()
248{
249    waitonetouch(&x,&y);
250        if((x>15 && x<85) && (y>15 && y<85)) //0
251      {
252        if(board[0]==0)
253        {
254          board[0]=1;
255          drawX(15,15);
256    }
257       else  error();
258      }
259    else if((x>85 && x<155)&& (y>15 && y<85)) //1
260      {
261        if(board[1]==0)
262        {
263          board[1]=1;
264          drawX(85,15);  
265        }
266       else error();
267      }
268    if((x>155 && x<225)&&  (y>15 && y<85)) //2
269      {
270        if(board[2]==0)
271        {
272          board[2]=1;
273          drawX(155,15); 
274        }
275       else error();
276      }
277    if((x>15  && x<85)&& (y>85 && y<155)) //3
278      {
279        if(board[3]==0)
280        {
281          board[3]=1;
282          drawX(15,85);
283        }
284       else error();
285      }
286    if((x>85 && x<155)&& (y>85 && y<155)) //4
287      {
288        if(board[4]==0)
289        {
290          board[4]=1;
291          drawX(85,85);
292            }
293       else error();
294      }
295    if((x>155 && x<225)&& (y>85 && y<155)) //5
296      {
297        if(board[5]==0)
298        {
299          board[5]=1;
300          drawX(155,85);
301            }
302       else error();
303      }
304    if((x>15 && x<85)&& (y>155  && y<225)) //6
305      {
306        if(board[6]==0)
307        {
308          board[6]=1;
309          drawX(15,155);
310              }
311          else error();
312      }
313     if((x>85 && x<155)&& (y>155 && y<225)) //7
314      {
315        if(board[7]==0)
316        {
317          board[7]=1;
318          drawX(85,155);
319            }
320       else error();
321      }
322     if((x>155 && x<225)&& (y>155 && y<225))  //8
323      {
324        if(board[8]==0)
325        {
326          board[8]=1;
327          drawX(155,155);  
328        }
329       else error();
330       }
331}
332
333void  error(){
334  cursor+=10;
335  tft.setCursor(240,cursor);
336  tft.setTextSize(1);
337  tft.println("Error");
338  delay(1000);
339  cursor+=10;
340  tft.setCursor(240,cursor);
341  tft.println("Try again.");
342  playerMove();
343}
344
345unsigned short int  checkOpponent(unsigned short int x, unsigned short int y)
346{
347  if(board[1]==x  && board[2]==x && board[0]==y){
348    if(y==0){
349    return 0;
350  }
351  else  return 1;
352  }
353  if(board[3]==x && board[6]==x && board[0]==y){
354    if(y==0){
355    return 0;
356  }
357  else return 6;
358  }
359  if(board[0]==y && board[4]==x  && board[8]==x){
360    if(y==0){
361    return 0;
362  }
363  else return 8;
364  }
365  if(board[0]==x && board[1]==y && board[2]==x){
366    if(y==0){
367    return  1;
368  }
369  else return 0;
370  }
371  if(board[4]==x && board[7]==x && board[1]==y){
372    if(y==0){
373    return 1;
374  }
375  else return 7;
376  }
377  if(board[0]==x  && board[1]==x && board[2]==y){
378    if(y==0){
379    return 2;
380  }
381  else  return 0;
382  }
383  if(board[5]==x && board[8]==x && board[2]==y){
384    if(y==0){
385    return 2;
386  }
387  else return 8;
388  }
389  if(board[4]==x && board[6]==x  && board[2]==y){
390    if(y==0){
391    return 2;
392  }
393  else return 6;
394  }
395  if(board[4]==x && board[5]==x && board[3]==y){
396    if(y==0){
397    return  3;
398  }
399  else return 5;
400  }
401  if(board[0]==x && board[6]==x && board[3]==y){
402    if(y==0){
403    return 3;
404  }
405  else return 6;
406  }
407  if(board[3]==x  && board[4]==y && board[5]==x){
408    if(y==0){
409    return 4;
410  }
411  else  return 3;
412  }
413  if(board[1]==x && board[7]==x && board[4]==y){
414    if(y==0){
415    return 4;
416  }
417  else return 1;
418  }
419  if(board[0]==x && board[8]==x  && board[4]==y){
420    if(y==0){
421    return 4;
422  }
423  else return 0;
424  }
425  if(board[2]==x && board[6]==x && board[4]==y){
426    if(y==0){
427    return  4;
428  }
429  else return 2;
430  }
431  if(board[3]==x && board[4]==x && board[5]==y){
432    if(y==0){
433    return 5;
434  }
435  else return 3;
436  }
437  if(board[2]==x  && board[8]==x && board[5]==y){
438    if(y==0){
439    return 5;
440  }
441  else  return 2;
442  }
443  if(board[7]==x && board[8]==x && board[6]==y){
444    if(y==0){
445    return 6;
446  }
447  else return 8;
448  }
449  if(board[0]==x && board[3]==x  && board[6]==y){
450    if(y==0){
451    return 6;
452  }
453  else return 0;
454  }
455  if(board[4]==x && board[2]==x && board[6]==y){
456    if(y==0){
457    return  6;
458  }
459  else return 2;
460  }
461  if(board[1]==x && board[4]==x && board[7]==y){
462    if(y==0){
463    return 7;
464  }
465  else return 1;
466  }
467  if(board[6]==x  && board[8]==x && board[7]==y){
468    if(y==0){
469    return 7;
470  }
471  else  return 6;
472  }
473  if(board[6]==x && board[7]==x && board[8]==y){
474    if(y==0){
475    return 8;
476  }
477  else return 6;
478  }
479  if(board[5]==x && board[2]==x  && board[8]==y){
480    if(y==0){
481    return 8;
482  }
483  else return 2;
484  }
485  if(board[4]==x && board[0]==x && board[8]==y){
486  if(y==0){
487    return  8;
488  }
489  else return 0;
490  }
491  else
492  return 100;
493}
494
495void  arduinoMove()
496{
497    if(moves<2)
498    {
499      do{
500      unsigned short  int randomMove =random(4); 
501      unsigned short int c=firstMoves[randomMove];
502      if(board[c]==0){   
503         board[c]=2;
504         drawCpuMove(firstMoves[randomMove]);
505         return;
506    }
507    }while(moves<2);
508    }
509    if(moves<3)
510    {
511      if(board[4]==0)
512      {   
513         board[4]=2;
514         drawCpuMove(4);
515         return;
516      }
517    }
518    unsigned short int twoPlayer = checkOpponent(2,0);//CPU  two in a row?
519    if(twoPlayer < 9)
520    {
521      board[twoPlayer]=2;
522      drawCpuMove(twoPlayer);
523      return;
524    }
525    unsigned short int  nextMove = checkOpponent(1,0);//Player two in a row?
526    if(nextMove < 9)
527        {
528        board[nextMove]=2;
529        drawCpuMove(nextMove);
530        return;
531        }
532    unsigned short int next = checkOpponent(0,2);
533    if(next <  9)
534        {
535        board[next]=2;
536        drawCpuMove(next);
537        return;
538        }
539    do
540      {
541      unsigned short int randomMove =random(9);  
542      if (board[randomMove]==0)
543        {  
544          board[randomMove]=2;
545          drawCpuMove(randomMove);
546          return;
547        }   
548      }while(nextMove  == 100);
549}  
550
551void drawCircle(unsigned short int x, unsigned short int  y)
552{
553  tft.drawBitmap(x,y,circle,65,65,ILI9341_RED);
554}
555
556void drawX(unsigned  short int x, unsigned short int y)
557{
558  tft.drawBitmap(x,y,x_bitmap,65,65,ILI9341_BLUE);
559}
560
561void  drawCpuMove(unsigned short int move)
562{
563  switch(move)
564  {
565    case 0:  drawCircle(15,15);  break;
566    case 1: drawCircle(85,15); break;
567    case  2: drawCircle(155,15); break;
568    case 3: drawCircle(15,85);  break;
569    case  4: drawCircle(85,85); break;
570    case 5: drawCircle(155,85); break;
571    case  6: drawCircle(15,155); break;
572    case 7: drawCircle(85,155);break;
573    case  8: drawCircle(155,155);break;
574  }
575}
576
577void checkWinner() 
578// checks  board to see if there is a winner
579// places result in the global variable 'winner'
580{
581  // noughts win?
582  if (board[0]>0 && board[1]==board[0] && board[2]==board[0])  { 
583    winner=board[0];
584    tft.fillRect(15, 45, 205, 5, ILI9341_WHITE); 
585  }
586  if (board[3]>0 && board[4]==board[3] && board[5]==board[3]) { 
587    winner=board[3];  
588    tft.fillRect(15, 115, 205, 5, ILI9341_WHITE);
589  }
590  if (board[6]>0  && board[7]==board[6] && board[8]==board[6]) { 
591    winner=board[6]; 
592    tft.fillRect(15,  185, 205, 5, ILI9341_WHITE);
593  }  
594  if (board[0]>0 && board[3]==board[0]  && board[6]==board[0]) { 
595    winner=board[0]; 
596    tft.fillRect(45, 15, 5,  205, ILI9341_WHITE);
597  }
598  if (board[1]>0 && board[4]==board[1] && board[7]==board[1])  { 
599    winner=board[1]; 
600    tft.fillRect(115, 15, 5, 205, ILI9341_WHITE);
601  }
602  if (board[2]>0 && board[5]==board[2] && board[8]==board[2]) { 
603    winner=board[2];  
604    tft.fillRect(185, 15, 5, 205, ILI9341_WHITE);
605  }  
606  if (board[0]>0  && board[4]==board[0] && board[8]==board[0]) { 
607    winner=board[0];
608    for(unsigned  short int xx=0;xx<6;xx++){ 
609    tft.drawLine(20+xx, 20, 210+xx, 210, ILI9341_WHITE);
610  }
611  }
612  if (board[2]>0 && board[4]==board[2] && board[6]==board[2]) { 
613    winner=board[2]; 
614    for(unsigned short int xx=0;xx<6;xx++){
615    tft.drawLine(210+xx,  20, 20+xx, 210, ILI9341_WHITE);
616  }
617  }
618}
619void waitonetouch(unsigned  short int *x,unsigned short int *y){
620  do
621  {    
622    delay(10);
623    if  (myTouch.dataAvailable() == true)
624    {
625      myTouch.read();
626      *x  = myTouch.getX();  //Get touch point  
627      *y = myTouch.getY();
628      return;
629      }
630  }while(myTouch.dataAvailable()==false); 
631}
632
633