From 1d93b6696cbcf268d0e035e3837a3188f001e3bc Mon Sep 17 00:00:00 2001
From: Kai Stevenson <kai@kaistevenson.com>
Date: Mon, 21 Nov 2022 11:23:46 -0800
Subject: init

---
 ttt.c | 107 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 ttt.c

diff --git a/ttt.c b/ttt.c
new file mode 100644
index 0000000..3701d9a
--- /dev/null
+++ b/ttt.c
@@ -0,0 +1,107 @@
+#include <stdio.h>
+#include <stdlib.h>
+void draw_board(int boardState[3][3]) {
+	for(int r = 0; r < 3; r++) {
+		char* line = calloc(3, 1);
+		for(int c = 0; c < 3; c++) {
+			if(boardState[c][r] == 0) {
+				line[c] = '-';
+			}
+			else if(boardState[c][r] == 1) {
+				line[c] = 'x';
+			}
+			else if(boardState[c][r] == 2) {
+				line[c] = 'y';
+			}
+			else {
+				line[c] = 'E';
+			}
+		}
+		printf(line);
+		printf("\n");
+		free(line);
+	}
+}
+int check_dir(int sx, int sy, int dx, int dy, int boardState[3][3]) {
+	int sv = boardState[sx][sy];
+	if(sv != 0) {
+		for(int i = 0; i < 2; i++) {
+			sx += dx;
+			sy += dy;
+			if(boardState[sx][sy] != sv) {
+				return 0;
+			}
+		}
+		return sv;
+	}
+	return 0;
+}
+//return 0 if no win, 1 if x win, 2 if o win
+int check_win(int boardState[3][3]) {
+	if(boardState[1][1] != 0) {
+		int c = check_dir(1, 0, 0, 1, boardState);
+		if(c != 0) {
+			return c;
+		}
+		c = check_dir(0, 0, 1, 1, boardState);
+		if(c != 0) {
+			return c;
+		} 
+		c = check_dir(0, 1, 1, 0, boardState);
+		if(c != 0) {
+			return c;
+		} 
+		c = check_dir(0, 2, 1, -1, boardState);
+		if(c != 0) {
+			return c;
+		} 
+	}
+	if(boardState[0][0] != 0) {
+		int c = check_dir(0, 0, 1, 0, boardState);
+		if(c != 0) {
+			return c;
+		}
+		c = check_dir(0, 0, 0, 1, boardState);
+		if(c != 0) {
+			return c;
+		}
+	}
+	if(boardState[2][2] != 0) {
+		int c = check_dir(2, 2, -1, 0, boardState);
+		if(c != 0) {
+			return c;
+		}
+		c = check_dir(2, 2, 0, -1, boardState);
+		if(c != 0) {
+			return c;
+		}
+	}
+	return 0;
+}
+int* user_input_pos() {
+	int* ip = malloc(2 * sizeof(int));
+	printf("Enter X coordinate");
+	scanf("%d", &ip[0]); 
+	printf("Enter Y coordinate");
+	scanf("%d", &ip[1]); 
+	return ip;
+}
+void clr_scr()
+{
+    system("@cls||clear");
+}
+int main() {
+	int board[3][3] = { { 0, 0, 0 }, { 0, 0, 0 }, { 0, 0, 0 } };
+	while(1) {
+		clr_scr();
+		draw_board(board);
+		int* tl = user_input_pos();
+		board[tl[0] - 1][3 - tl[1]] = 1;
+		free(tl);
+		if(check_win(board) != 0) {
+			printf("Someone won!");
+			break;
+		}
+	}
+	return 0;
+}
-- 
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