feat(tractor): implement tank controls

src/tractor.py

@@ -25,17 +25,17 @@ class Tractor(pygame.sprite.Sprite):
         surface.blit(self.image, self.rect)
 
 
-    def move(self, direction):
-        if direction == "up" and self.rect.y > 0:
+    def move(self):
+        if self.direction == "north" and self.rect.y > 0:
             self.rect.y -= TILE_SIZE
             self.log_info()
-        elif direction == "down" and self.rect.y < 15 * TILE_SIZE:
+        elif self.direction == "south" and self.rect.y < 15 * TILE_SIZE:
             self.rect.y += TILE_SIZE
             self.log_info()
-        elif direction == "left" and self.rect.x > 0:
+        elif self.direction == "west" and self.rect.x > 0:
             self.rect.x -= TILE_SIZE
             self.log_info()
-        elif direction == "right" and self.rect.x < 15 * TILE_SIZE:
+        elif self.direction == "east" and self.rect.x < 15 * TILE_SIZE:
             self.rect.x += TILE_SIZE
             self.log_info()
 
@@ -43,13 +43,11 @@ class Tractor(pygame.sprite.Sprite):
     def update(self):
         keys = pygame.key.get_pressed()
         if keys[pygame.K_LEFT]:
-            self.move('left')    
+            self.rotate('left')    
         if keys[pygame.K_RIGHT]:
-            self.move('right')
+            self.rotate('right')
         if keys[pygame.K_UP]:
-            self.move('up')
-        if keys[pygame.K_DOWN]:
-            self.move('down')
+            self.move()
         if keys[pygame.K_r]:
             self.water = 50
             print(f"💧 replenished water level: {self.water} litres\n")
@@ -103,3 +101,38 @@ class Tractor(pygame.sprite.Sprite):
 
         return neighbors
 
+
+    def rotate(self, rotate):
+        match (self.direction, rotate):
+            case ("north", "left"):
+                self.image = pygame.image.load('images/tractor/west.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'west'
+            case ("north", "right"):
+                self.image = pygame.image.load('images/tractor/east.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'east'
+            case ("east", "right"):
+                self.image = pygame.image.load('images/tractor/south.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'south'
+            case ("east", "left"):
+                self.image = pygame.image.load('images/tractor/north.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'north'
+            case ("south", "right"):
+                self.image = pygame.image.load('images/tractor/west.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'west'
+            case ("south", "left"):
+                self.image = pygame.image.load('images/tractor/east.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'east'
+            case ("west", "left"):
+                self.image = pygame.image.load('images/tractor/south.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'south'
+            case ("west", "right"):
+                self.image = pygame.image.load('images/tractor/north.png').convert_alpha()
+                self.image = pygame.transform.scale(self.image, (TILE_SIZE, TILE_SIZE))
+                self.direction = 'north'