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Genmove.c
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Genmove.c
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "Header.h"
int genmove(char **table, int n, struct player **play) {
char cplayer[50]; // cplayer: Color of player.
char color, current_let, opp; // Current_let: current position of pawn.
int walls, current_num, x, y, flag = 0; // x,y: to have access in main board.
int ch;
struct player *tmp;
tmp = (*play);
scanf("%s", cplayer);
if (!strcmp(cplayer, "black")) color = 'B';
else if (!strcmp(cplayer, "white")) color = 'W';
else { // If genmove xxxx given, xxxx means wrong arguments.
while ((ch = getchar()) != '\n');
printf("\n? invalid syntax");
printf("\n\n");
return -1;
}
if (color == 'B') opp = 'W';
else opp = 'B';
while (tmp) {
if (tmp->color == color && flag == 0) {
walls = tmp->r_walls;
flag = -1;
} // We use flag to find the remaining walls of pawn.
if (tmp->color == color && tmp->wall_let == 0) { // We search last position of pawn.
current_num = tmp->position_num;
current_let = tmp->position_let;
break;
}
else tmp = tmp->next;
}
y = (4 * (current_let - 65)) + 2;
x = (2 * n) - (2 * current_num) + 1;
if (color == 'W') {
if (flag != 1 && x > 3 && table[x - 2][y] == opp && table[x - 1][y] != '=' && table[x - 3][y] != '=') {
table[x - 4][y] = color;
table[x][y] = ' ';
current_num += 2;
flag = 1;
} // Move A
if (flag != 1 && x != 0 && table[x - 1][y] != '=' && table[x - 2][y] != opp) {
table[x - 2][y] = color;
table[x][y] = ' ';
current_num++;
flag = 1;
} // Move B
if (flag != 1 && x != 0 && y != 0 && table[x - 2][y] == opp && table[x - 3][y] == '=' && table[x - 3][y - 4] == '=' && (table[x - 2][y - 2] != 'H') && (table[x - 1][y] != '=')) {
table[x - 2][y - 4] = color;
table[x][y] = ' ';
current_num++;
current_let--;
flag = 1;
} // Move C
if (flag != 1 && x != 0 && y != 0 && table[x][y - 4] == opp && table[x][y - 6] == 'H' && table[x - 2][y - 6] == 'H' && table[x - 1][y - 4] != '=' && table[x][y - 2] != 'H') {
table[x - 2][y - 4] = color;
table[x][y] = ' ';
current_num++;
current_let--;
flag = 1;
} // Move D
if (flag != 1 && x != 0 && y != n - 1 && table[x - 2][y] == opp && table[x - 3][y] == '=' && table[x - 3][y + 4] == '=' && (table[x - 2][y + 2] != 'H') && (table[x - 1][y] != '=')) {
table[x - 2][y + 4] = color;
table[x][y] = ' ';
current_num++;
current_let++;
flag = 1;
} // Move E
if (flag != 1 && x != 0 && y != n - 1 && table[x][y + 4] == opp && table[x][y + 6] == 'H' && table[x - 2][y + 6] == 'H' && table[x][y + 2] != 'H' && table[x - 1][y + 4] != '=') {
table[x - 2][y + 4] = color;
table[x][y] = ' ';
current_let++;
current_num++;
flag = 1;
} // Move F
if (flag != 1 && y != 0 && table[x][y - 2] != 'H' && table[x][y - 4] != opp) {
table[x][y - 4] = color;
table[x][y] = ' ';
current_let--;
flag = 1;
} // Move G
if (flag != 1 && y > 1 && table[x][y - 4] == opp && table[x][y - 2] != 'H' && table[x][y - 6] != 'H') {
table[x][y - 8] = color;
table[x][y] = ' ';
current_let -= 2;
flag = 1;
} // Move H
if (flag != 1 && y != n - 1 && table[x][y + 2] != 'H' && table[x][y + 4] != opp) {
table[x][y + 4] = color;
table[x][y] = ' ';
current_let++;
flag = 1;
} // Move I
if (flag != 1 && y < n - 2 && table[x][y + 4] == opp && table[x][y + 2] != 'H' && table[x][y + 6] != 'H') {
table[x][y + 8] = color;
table[x][y] = ' ';
current_let += 2;
flag = 1;
} // Move J
if (flag != 1 && x != n - 1 && table[x + 1][y] != '=' && table[x + 2][y] != opp) {
table[x + 2][y] = color;
table[x][y] = ' ';
current_num--;
flag = 1;
} // Move K
if (flag != 1 && x != n - 1 && y != 0 && table[x][y - 4] == opp && table[x][y - 6] == 'H' && table[x + 2][y - 6] == 'H' && table[x + 1][y - 4] != '=' && table[x][y - 2] != 'H') {
table[x + 2][y - 4] = color;
table[x][y] = ' ';
current_num--;
current_let--;
flag = 1;
} // Move L
if (flag != 1 && x != n - 1 && y != 0 && table[x + 2][y] == opp && table[x + 3][y] == '=' && table[x + 3][y - 4] == '=' && (table[x + 2][y - 2] != 'H') && (table[x + 1][y] != '=')) {
table[x + 2][y - 4] = color;
table[x][y] = ' ';
current_num--;
current_let--;
flag = 1;
} // Move M
if (flag != 1 && x != n - 1 && y != n - 1 && table[x + 2][y] == opp && table[x + 3][y] == '=' && table[x + 3][y + 4] == '=' && (table[x + 2][y + 2] != 'H') && (table[x + 1][y] != '=')) {
table[x + 2][y + 4] = color;
table[x][y] = ' ';
current_num--;
current_let++;
flag = 1;
} // Move N
if (flag != 1 && x != n - 1 && y != n - 1 && table[x][y + 4] == opp && table[x][y + 6] == 'H' && table[x + 2][y + 6] == 'H' && table[x + 1][y + 4] != '=' && table[x][y + 2] != 'H') {
table[x + 2][y + 4] = color;
table[x][y] = ' ';
current_let++;
current_num--;
flag = 1;
} // Move O
if (flag != 1 && x < n - 2 && table[x + 2][y] == opp && table[x + 1][y] != '=' && table[x + 3][y] != '=') {
table[x + 4][y] = color;
table[x][y] = ' ';
current_num -= 2;
flag = 1;
} // Move P
}
else
{
if (flag != 1 && x < n - 2 && table[x + 2][y] == opp && table[x + 1][y] != '=' && table[x + 3][y] != '=') {
table[x + 4][y] = color;
table[x][y] = ' ';
current_num -= 2;
flag = 1;
} // Move P
if (flag != 1 && x != n - 1 && table[x + 1][y] != '=' && table[x + 2][y] != opp) {
table[x + 2][y] = color;
table[x][y] = ' ';
current_num--;
flag = 1;
} // Move K
if (flag != 1 && x != n - 1 && y != 0 && table[x + 2][y] == opp && table[x + 3][y] == '=' && table[x + 3][y - 4] == '=' && (table[x + 2][y - 2] != 'H') && (table[x + 1][y] != '=')) {
table[x + 2][y - 4] = color;
table[x][y] = ' ';
current_num--;
current_let--;
flag = 1;
} // Move M
if (flag != 1 && x != n - 1 && y != 0 && table[x][y - 4] == opp && table[x][y - 6] == 'H' && table[x + 2][y - 6] == 'H' && table[x + 1][y - 4] != '=' && table[x][y - 2] != 'H') {
table[x + 2][y - 4] = color;
table[x][y] = ' ';
current_num--;
current_num--;
flag = 1;
} // Move L
if (flag != 1 && x != n - 1 && y != n - 1 && table[x + 2][y] == opp && table[x + 3][y] == '=' && table[x + 3][y + 4] == '=' && (table[x + 2][y + 2] != 'H') && (table[x + 1][y] != '=')) {
table[x + 2][y + 4] = color;
table[x][y] = ' ';
current_num--;
current_let++;
flag = 1;
} // Move N
if (flag != 1 && x != n - 1 && y != n - 1 && table[x][y + 4] == opp && table[x][y + 6] == 'H' && table[x + 2][y + 6] == 'H' && table[x + 1][y + 4] != '=' && table[x][y + 2] != 'H') {
table[x + 2][y + 4] = color;
table[x][y] = ' ';
current_let++;
current_num--;
flag = 1;
} // Move O
if (flag != 1 && y != 0 && table[x][y - 2] != 'H' && table[x][y - 4] != opp) {
table[x][y - 4] = color;
table[x][y] = ' ';
current_let--;
flag = 1;
} // Move G
if (flag != 1 && y > 1 && table[x][y - 4] == opp && table[x][y - 2] != 'H' && table[x][y - 6] != 'H') {
table[x][y - 8] = color;
table[x][y] = ' ';
current_let -= 2;
flag = 1;
} // Move H
if (flag != 1 && y != n - 1 && table[x][y + 2] != 'H' && table[x][y + 4] != opp) {
table[x][y + 4] = color;
table[x][y] = ' ';
current_let++;
flag = 1;
} // Move I
if (flag != 1 && y < n - 2 && table[x][y + 4] == opp && table[x][y + 2] != 'H' && table[x][y + 6] != 'H') {
table[x][y + 8] = color;
table[x][y] = ' ';
current_let += 2;
flag = 1;
} // Move J
if (flag != 1 && x != 0 && y != n - 1 && table[x][y + 4] == opp && table[x][y + 6] == 'H' && table[x - 2][y + 6] == 'H' && table[x][y + 2] != 'H' && table[x - 1][y + 4] != '=') {
table[x - 2][y + 4] = color;
table[x][y] = ' ';
current_let++;
current_num++;
flag = 1;
} // Move F
if (flag != 1 && x != 0 && y != n - 1 && table[x - 2][y] == opp && table[x - 3][y] == '=' && table[x - 3][y + 4] == '=' && (table[x - 2][y + 2] != 'H') && (table[x - 1][y] != '=')) {
table[x - 2][y + 4] = color;
table[x][y] = ' ';
current_num++;
current_let++;
flag = 1;
} // Move E
if (flag != 1 && x != 0 && y != 0 && table[x][y - 4] == opp && table[x][y - 6] == 'H' && table[x - 2][y - 6] == 'H' && table[x - 1][y - 4] != '=' && table[x][y - 2] != 'H') {
table[x - 2][y - 4] = color;
table[x][y] = ' ';
current_num++;
current_let--;
flag = 1;
} // Move D
if (flag != 1 && x != 0 && y != 0 && table[x - 2][y] == opp && table[x - 3][y] == '=' && table[x - 3][y - 4] == '=' && (table[x - 2][y - 2] != 'H') && (table[x - 1][y] != '=')) {
table[x - 2][y - 4] = color;
table[x][y] = ' ';
current_num++;
current_let--;
flag = 1;
} // Move C
if (flag != 1 && x != 0 && table[x - 1][y] != '=' && table[x - 2][y] != opp) {
table[x - 2][y] = color;
table[x][y] = ' ';
current_num++;
flag = 1;
} // Move B
if (flag != 1 && x > 1 && table[x - 2][y] == opp && table[x - 1][y] != '=' && table[x - 3][y] != '=') {
table[x - 4][y] = color;
table[x][y] = ' ';
current_num += 2;
flag = 1;
} // Move A
}
struct player *help; // Save our move.
total_plays++;
help = malloc(sizeof(struct player));
if (help == NULL){
printf("Error in memory allocation\n\n");
return -1;
}
help->color = color;
help->position_let = current_let;
help->position_num = current_num;
help->wall_num= 0;
help->wall_let = 0;
help->r_walls = walls;
help->orient = 0;
help->next = (*play);
(*play) = help;
printf("= %c%d\n\n", current_let, current_num);
return 0;
}
// Editors:
// sdi1500129.
// sdi1500195.