initialized a knobs module

.gitignore

@@ -0,0 +1 @@
+/__pycache__

knob.py

@@ -0,0 +1,13 @@
+import pygame
+
+class Knob:
+    
+    def __init__(self, screen):
+        self.screen = screen
+        self.radius = screen.get_width()/20
+        self.fill_color = (255,0,255)
+        self.position = (screen.get_width()/2, screen.get_height()/2)
+
+    def display(self):
+        pygame.draw.circle(self.screen, self.fill_color , self.position, self.radius)
+        

main.py

@@ -1,9 +1,14 @@
 # Example file showing a basic pygame "game loop"
 import pygame
+from knob import *
 
 # pygame setup
 pygame.init()
-screen = pygame.display.set_mode((1280, 720))
+screenW = 561
+screenH = 325
+screen = pygame.display.set_mode((screenW, screenH))
+knob1 = Knob(screen)
+
 clock = pygame.time.Clock()
 running = True
 
@@ -15,9 +20,11 @@ while running:
             running = False
 
     # fill the screen with a color to wipe away anything from last frame
-    screen.fill("purple")
+    screen.fill("black")
 
     # RENDER YOUR GAME HERE
+    knob1.display()
+
 
     # flip() the display to put your work on screen
     pygame.display.flip()