refactor(TILE_SIZE): load environment variables in config.py file

src/config.py

@@ -0,0 +1,6 @@
+import os
+from dotenv import find_dotenv, load_dotenv
+
+# you can set TILE_SIZE in the .env file to adjust the window size
+load_dotenv(find_dotenv())
+TILE_SIZE = int(os.getenv("TILE_SIZE"))

src/main.py

@@ -2,16 +2,17 @@ import sys
 import pygame
 from field import Field
 import os
-from dotenv import find_dotenv, load_dotenv
+from config import TILE_SIZE
 
 if __name__ == "__main__":
     pygame.init()
     WHITE = (255, 255, 255)
-    # loading TILE_SIZE to adjust window size
-    load_dotenv(find_dotenv())
-    WINDOW_SIZE = int(os.getenv("TILE_SIZE")) * 16
+
+    WINDOW_SIZE = TILE_SIZE * 16
     screen = pygame.display.set_mode((WINDOW_SIZE, WINDOW_SIZE))
+    
     field = Field()
+    
     running = True
     while running:
         for event in pygame.event.get():

src/tile.py

@@ -1,11 +1,12 @@
 import os
 import pygame
-from dotenv import find_dotenv, load_dotenv
 from kb import tractor_kb
 import pytholog as pl
 import random
+from config import TILE_SIZE
 
 class Tile(pygame.sprite.Sprite):
+
     def __init__(self, id, field, type):
         super().__init__()
         self.id = id
@@ -20,9 +21,6 @@ class Tile(pygame.sprite.Sprite):
 
         self.faza = 'posadzono'
 
-        # you can set TILE_SIZE in the .env file to adjust the window size
-        load_dotenv(find_dotenv())
-        TILE_SIZE = int(os.getenv("TILE_SIZE"))
         self.rect = self.image.get_rect()
         self.rect.topleft = (x * TILE_SIZE, y * TILE_SIZE)
     
@@ -34,10 +32,6 @@ class Tile(pygame.sprite.Sprite):
         # if self.type == 'grass':
         #     self.image = pygame.image.load("images/grass.png").convert()
         self.image = pygame.image.load("images/grass.png").convert()
-
-        # you can set TILE_SIZE in the .env file to adjust the window size
-        load_dotenv(find_dotenv())
-        TILE_SIZE = int(os.getenv("TILE_SIZE"))
         self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
 
     

src/tractor.py

@@ -1,17 +1,14 @@
 import pygame
 import os
-from dotenv import find_dotenv, load_dotenv
 from kb import ile_podlac
 from tile import Tile
+from config import TILE_SIZE
 
 class Tractor(pygame.sprite.Sprite):
     def __init__(self, field):
         super().__init__
         self.field = field
         self.image = pygame.image.load('images/tractor.png').convert_alpha()
-        # you can set TILE_SIZE in the .env to adjust window size
-        load_dotenv(find_dotenv())
-        TILE_SIZE = int(os.getenv("TILE_SIZE"))
         self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
         self.rect = self.image.get_rect()
         x, y = 0, 0
@@ -22,11 +19,8 @@ class Tractor(pygame.sprite.Sprite):
     def draw(self, surface):
         surface.blit(self.image, self.rect)
 
-    def move(self, direction):
-        # you can set TILE_SIZE in the .env to adjust window size     
-        load_dotenv(find_dotenv())
-        TILE_SIZE = int(os.getenv("TILE_SIZE"))
 
+    def move(self, direction):
         if direction == "up" and self.rect.y > 0:
             self.rect.y -= TILE_SIZE
             self.print_tile_type()
@@ -59,19 +53,15 @@ class Tractor(pygame.sprite.Sprite):
         if keys[pygame.K_DOWN]:
             self.move('down')
 
-    def print_tile_type(self):
-        load_dotenv(find_dotenv())
-        TILE_SIZE = int(os.getenv("TILE_SIZE"))
 
+    def print_tile_type(self):
         x = self.rect.x // TILE_SIZE
         y = self.rect.y // TILE_SIZE
         tile_type = self.field.tiles.sprites()[y * 16 + x].type
         print(f"The tractor is on a {tile_type} tile.")
 
-    def get_current_tile(self):
-        load_dotenv(find_dotenv())
-        TILE_SIZE = int(os.getenv("TILE_SIZE"))
 
+    def get_current_tile(self):
         x = self.rect.x // TILE_SIZE
         y = self.rect.y // TILE_SIZE
         current_tile = self.field.tiles.sprites()[y * 16 + x]