refactor

frame.py

@@ -50,13 +50,15 @@ class Frame:
             to_str += '│'
             for elem in line:
                 if elem == SPACE:
-                    to_str += "  "
+                    to_str += TT_SPACE
                 elif elem == WALL:
-                    to_str += "██"
+                    to_str += TT_WALL
                 elif elem == FOOD:
-                    to_str += "@@"
+                    to_str += TT_FOOD
                 elif elem == WALL_FOOD:
-                    to_str += "@█"
+                    to_str += TT_WALL_FOOD
+                elif elem == HEAD:
+                    to_str += TT_HEAD
             to_str += '│\n'
 
             out_string += to_str

out.py

@@ -20,6 +20,12 @@ class Out:
                 width=1, height=1
             )
 
+        frame.draw(
+            x=pl.body[-1].x, y=pl.body[-1].y,
+            value=HEAD,
+            width=1, height=1
+        )
+
         if frame.see(pl.food.x, pl.food.y) == WALL:
             frame.draw(
                 x=pl.food.x, y=pl.food.y,

settings.py

@@ -25,3 +25,10 @@ SPACE = 0
 WALL = 1
 FOOD = 2
 WALL_FOOD = 3
+HEAD = 4
+
+TT_SPACE = "  "
+TT_WALL = "██"
+TT_FOOD = "@@"
+TT_WALL_FOOD = "@█"
+TT_HEAD = "██"