Initial commit of conway's game of life

conway.c

@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+#include <stdint.h>
+#include <wchar.h>
+#include <locale.h>
+
+void printGrid(int gridX, int gridY, int **arr) {
+    // print the array for debugging
+    wprintf(L"%lc", 0x2554);
+    for(int j = 0; j < gridY; j++) {
+        wprintf(L"%lc", 0x2550);
+    }
+    wprintf(L"%lc", 0x2557);
+    wprintf(L"\n");
+    for(int j = 0; j < gridY; j++) {
+        wprintf(L"%lc", 0x2551);
+        for(int i = 0; i < gridX; i++) {
+            wprintf(L"%lc", ((arr[i][j] == 1) ? 0x0023 : 0x0020));
+        }
+        wprintf(L"%lc\n", 0x2551);
+    }
+    wprintf(L"%lc", 0x255A);
+    for(int j = 0; j < gridY; j++) {
+        wprintf(L"%lc", 0x2550);
+    }
+    wprintf(L"%lc", 0x255D);
+
+    return;
+}
+
+int main(int argc, char *argv[]) {
+    if(argc < 3) {
+        printf("Usage: conway <xsize> <ysize> [seed]\n");
+        exit(255);
+    }
+    setlocale(LC_CTYPE, "");
+    int gridX, gridY, seed = 0, generation = 0;
+    for(int i = argc - 1; i > 0; i--) {
+        switch(i) {
+        case 1:
+            gridX = atoi(argv[i]);
+            break;
+        case 2:
+            gridY = atoi(argv[i]);
+            break;
+        case 3:
+            seed = atoi(argv[i]);
+            break;
+        }
+    }
+    if(seed == 0) {
+        time_t t;
+        srand((unsigned) time(&t));
+    } else {
+        srand(seed);
+    }
+    // dynamically allocate the 2D array, could be quite large!
+    int *arr[gridX];
+    for(int i = 0; i < gridY; i++) {
+        arr[i] = (int *)malloc(gridY * sizeof(int));
+    }
+    // seed the array
+    for(int i = 0; i < gridX; i++) {
+        for(int j = 0; j < gridY; j++) {
+            arr[i][j] = (rand() % 2 == 0) ? 1 : 0;
+        }
+    }
+    printGrid(gridX, gridY, arr);
+
+    return 0;
+}