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[/] [connect-6/] [trunk/] [CONNECTK/] [connectk-2.0/] [src/] [ai/] [serial_port.c] - Rev 13
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#include <stdlib.h> #include <stdio.h> #include <string.h> #include <unistd.h> #include <fcntl.h> #include <errno.h> #include <termios.h> #include <sys/time.h> #include "../shared.h" /* All serial functions work on this board */ static Board *myboard = NULL; static port=0; // The AI has as much time as it wants, but moves after 1 second. Default is to wait 2 seconds #define AI_WAIT_TIME 0.5 // FPGA has 1 second to make its move #define MOVE_TIME_LIMIT 0.5 static int char_to_int(short x){ if(x>=48) return x-48; else return 0; } //void wait(double seconds){ // timeval tim; // gettimeofday(&tim, NULL); // double t1=tim.tv_sec+(tim.tv_usec/1000000.0); // while (1){ // gettimeofday(&tim, NULL); // double t2=tim.tv_sec+(tim.tv_usec/1000000.0); // if (t2-t1 >= seconds) // break; // } //} void setup_port(int fd) { struct termios options; fcntl(fd, F_SETFL, 0); tcgetattr(fd, &options); cfsetispeed(&options, B115200); cfsetospeed(&options, B115200); options.c_cflag |= (CLOCAL | CREAD); tcsetattr(fd, TCSANOW, &options); // set up non-blocking port, so that we can time out int opts; opts = fcntl(fd,F_GETFL); if (opts < 0) { perror("fcntl(F_GETFL)"); exit(EXIT_FAILURE); } opts = (opts | O_NONBLOCK); if (fcntl(fd,F_SETFL,opts) < 0) { perror("fcntl(F_SETFL)"); exit(EXIT_FAILURE); } return; } void move_to_ascii(int x,int y, char move[4]){ if (y >= 10){ move[0] = '1'; y -= 10; } else { move[0] = '0'; } if (y == 0) move[1] = '0'; else if (y == 1) move[1] = '1'; else if (y == 2) move[1] = '2'; else if (y == 3) move[1] = '3'; else if (y == 4) move[1] = '4'; else if (y == 5) move[1] = '5'; else if (y == 6) move[1] = '6'; else if (y == 7) move[1] = '7'; else if (y == 8) move[1] = '8'; else if (y == 9) move[1] = '9'; // Do same for x. if (x >= 10){ move[2] = '1'; x -= 10; } else { move[2] = '0'; } if (x == 0) move[3] = '0'; else if (x == 1) move[3] = '1'; else if (x == 2) move[3] = '2'; else if (x == 3) move[3] = '3'; else if (x == 4) move[3] = '4'; else if (x == 5) move[3] = '5'; else if (x == 6) move[3] = '6'; else if (x == 7) move[3] = '7'; else if (x == 8) move[3] = '8'; else if (x == 9) move[3] = '9'; } AIMoves *ai_serial(const Board *b){ int i,j,firstmove=0; char move[4]; AIMoves *moves = aimoves_new(); AIMove fpgamove; for(i=0;i<board_size;i++){ for(j=0;j<board_size;j++){ if (piece_at(b,i,j)!=PIECE_NONE) firstmove++; } } if(firstmove<=1){ port = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_NONBLOCK); setup_port(port); if(b->turn==PIECE_WHITE){ write(port, "L",1); }else{ write(port, "D",1); } printf("firstmove %d\n",firstmove); if(!myboard){ myboard=board_new(); }else{ board_free(myboard); myboard=board_new(); } } if(b->moves_left >1 || (firstmove<=1)){ for(i=0;i<board_size;i++){ for(j=0;j<board_size;j++){ if ((piece_at(myboard,i,j)==PIECE_NONE) && (piece_at(b,i,j)!=PIECE_NONE)){ printf("%d,%d\n",i+1,j+1); move_to_ascii(i+1,j+1,move); write(port,&move[0],1); write(port,&move[1],1); write(port,&move[2],1); write(port,&move[3],1); printf("AI move %c%c %c%c\n", move[2],move[3],move[0],move[1] ); } } } } sleep(1); //move[0] = 0; move[1] = 0; move[2] = 0; move[3] = 0; ////////// Get Opponent's move read(port,&move[0],1); read(port,&move[1],1); read(port,&move[2],1); read(port,&move[3],1); fpgamove.y=char_to_int(move[0])*10 + char_to_int(move[1])-1; fpgamove.x=char_to_int(move[2])*10 + char_to_int(move[3])-1; printf("FPGA move %d %d\n", fpgamove.x, fpgamove.y); aimoves_append(moves, &fpgamove); //move[0] = 0; move[1] = 0; move[2] = 0; move[3] = 0; //read(port,&move[0],1); //read(port,&move[1],1); //read(port,&move[2],1); //read(port,&move[3],1); // printf("FPGA move %c%c %c%c\n", move[2],move[3],move[0],move[1] ); //fpgamove.x=char_to_int(move[2])*10 + char_to_int(move[3]) - 1; //fpgamove.y=char_to_int(move[0])*10 + char_to_int(move[1]) - 1; //printf("FPGA move %d %d\n", fpgamove.x, fpgamove.y); //aimoves_append(moves, &fpgamove); board_copy(b,myboard); place_piece_type(myboard,fpgamove.x,fpgamove.y,b->turn); return moves; }
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