import pygame
from settings import *

class Camera:
    def __init__(self, target):
        self.target = target
        self.offset = pygame.Vector2(0, 0)

    def update(self):
        # Smooth camera movement
        target_x = self.target.rect.centerx - SCREEN_WIDTH // 2
        target_y = self.target.rect.centery - SCREEN_HEIGHT // 2

        self.offset.x += (target_x - self.offset.x) * CAMERA_SMOOTHING
        self.offset.y += (target_y - self.offset.y) * CAMERA_SMOOTHING

    def apply(self, rect):
        return rect.move(-self.offset.x, -self.offset.y)

    def screen_to_world(self, pos):
        return (pos[0] + self.offset.x, pos[1] + self.offset.y)