progress

snake/snake.c

@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "snake.h"
+
+extern char board[BRD_SIZE_Y][BRD_SIZE_X];
+
+void addSnakePart(snakePart* head) {
+  snakePart* tail = head;
+
+  while (tail->next != NULL)
+    tail = tail->next;
+
+  snakePart* newTail = (snakePart*) malloc(sizeof(snakePart));
+  newTail->visChar = '#';
+  newTail->dir = tail->dir;
+
+  switch (newTail->dir) {
+    case 'w':
+      newTail->x = tail->x;
+      newTail->y = tail->y + 1;
+      break;
+    case 's':
+      newTail->x = tail->x - 1;
+      newTail->y = tail->y;
+      break;
+    case 'a':
+      newTail->x = tail->x - 1;
+      newTail->y = tail->y;
+      break;
+    case 'd':
+      newTail->x = tail->x;
+      newTail->y = tail->y - 1;
+      break;
+    default:
+      printf("Invalid direction in func addSnakePart\n");
+      exit(1);
+  }
+
+  newTail->next = NULL;
+
+  tail->next = newTail;
+
+  board[newTail->y][newTail->x] = newTail->visChar;
+}

snake/snake.h

@@ -0,0 +1,17 @@
+#ifndef SNAKE_H_
+#define SNAKE_H_
+
+#include "../globals.h"
+
+typedef struct snakeNode {
+  int x;
+  int y;
+  char visChar;
+
+  char dir;
+  struct snakeNode* next;
+} snakePart;
+
+void addSnakePart(snakePart* head);
+
+#endif  // SNAKE_H_