refactoring: movement of snake

src/main/c/Snake/snake_start.c

@@ -77,7 +77,7 @@ void game(){
 }
 
 Snake initialize_snake(){
-    Snake snake = {{1, 0}, 3};
+    Snake snake = {1, 3};
     for(int i = 0; i < AREA; i++){
         snake.segments[i] = 0;
     }
@@ -96,23 +96,19 @@ void get_next_move(double limit, Snake *snake, bool *running){
     switch (c){
         case 'w':
         case 'A':
-            snake->direction[0] = 0;
-            snake->direction[1] = -1;
+            snake->direction = -16;
             break;
         case 'a':
         case 'D':
-            snake->direction[0] = -1;
-            snake->direction[1] = 0;
+            snake->direction = -1;
             break;
         case 's':
         case 'B':
-            snake->direction[0] = 0;
-            snake->direction[1] = 1;
+            snake->direction = 16;
             break;
         case 'd':
         case 'C':
-            snake->direction[0] = 1;
-            snake->direction[1] = 0;
+            snake->direction = 1;
             break;
         case 'q':
             *running = false;
@@ -126,7 +122,7 @@ void move_snake(Snake *snake){
     for(int i = snake->length - 1; i > 0; i--){
         snake->segments[i] = snake->segments[i - 1];
     }
-    snake->segments[0] += snake->direction[0] + snake->direction[1] * 16;
+    snake->segments[0] += snake->direction;
 }
 
 void draw(Snake *snake, unsigned char fruit){

src/main/c/Snake/snake_start.h

@@ -6,7 +6,7 @@
 #define AREA HEIGHT * WIDTH
 
 typedef struct{
-    signed char direction[2];
+    signed char direction;
     char length;
     unsigned char segments[AREA];
 }Snake;