diff --git a/du5/snake.c b/du5/snake.c
index a725652..9966ef6 100644
--- a/du5/snake.c
+++ b/du5/snake.c
@@ -1,8 +1,10 @@
 #include <stdlib.h>
 #include "snake.h"
 
+
 struct snake* add_snake(struct snake* snake, int x, int y){
     struct snake* nova_cast = (struct snake*) calloc(1, sizeof(struct snake));
+
     if (nova_cast == NULL){
         return snake;
     }
@@ -38,7 +40,6 @@ struct snake* remove_snake(struct snake* snake){
     return snake;
 }
 
-
 int is_snake(struct snake* snake, int x, int y){
     struct snake* aktualny = snake;
 
@@ -46,7 +47,6 @@ int is_snake(struct snake* snake, int x, int y){
         if (aktualny->x == x && aktualny->y == y){
             return 1;
         }
-
         aktualny = aktualny->next;
     }
 
@@ -64,31 +64,31 @@ void free_snake(struct snake* sn){
 }
 
 int step_state(struct state* state){
-    int nova_pozicia_x = state->snake->x + state->sx;
-    int nova_pozicia_y = state->snake->y + state->sy;
+    int nova_x = state->snake->x + state->sx;
+    int nova_y = state->snake->y + state->sy;
 
-    if (nova_pozicia_x < 0 || nova_pozicia_y < 0 || nova_pozicia_x >= state->width || nova_pozicia_y >= state->height){
+    if (nova_x < 0 || nova_y < 0 || nova_x >= state->width || nova_y >= state->height){
         return END_WALL;
     }
 
-    if (is_snake(state->snake, nova_pozicia_x, nova_pozicia_y)){
+    if (is_snake(state->snake, nova_x, nova_y)){
         return END_SNAKE;
     }
 
     for (int i = 0; i < FOOD_COUNT; i++){
-        if (state->foodx[i] == nova_pozicia_x && state->foody[i] == nova_pozicia_y){
-            state->snake = add_snake(state->snake, nova_pozicia_x, nova_pozicia_y);
+        if (state->foodx[i] == nova_x && state->foody[i] == nova_y){
+            state->snake = add_snake(state->snake, nova_x, nova_y);
             state->foodx[i] = -1;
             state->foody[i] = -1;
 
-            int este_jedlo = 0;
+            int jedlo_ostalo = 0;
             for (int j = 0; j < FOOD_COUNT; j++){
                 if (state->foodx[j] != -1 && state->foody[j] != -1){
-                    este_jedlo = 1;
+                    jedlo_ostalo = 1;
                 }
             }
 
-            if (este_jedlo == 0){
+            if (jedlo_ostalo == 0){
                 return END_FOOD;
             }
 
@@ -96,7 +96,7 @@ int step_state(struct state* state){
         }
     }
 
-    state->snake = add_snake(state->snake, nova_pozicia_x, nova_pozicia_y);
+    state->snake = add_snake(state->snake, nova_x, nova_y);
     state->snake = remove_snake(state->snake);
 
     return END_CONTINUE;