Add enemy.py

enemy.py

@@ -0,0 +1,17 @@
+import pygame
+from settings import *
+
+class Enemy:
+    def __init__(self, x, y):
+        self.rect = pygame.Rect(x, y, 28, 48)
+        self.velocity = pygame.Vector2(0, 0)
+
+    def update(self, dt, world, player):
+        # Basic AI: follow player
+        if player.rect.x < self.rect.x:
+            self.rect.x -= ENEMY_SPEED * dt
+        else:
+            self.rect.x += ENEMY_SPEED * dt
+
+    def draw(self, screen, camera):
+        pygame.draw.rect(screen, (0, 0, 255), camera.apply(self.rect))