enemy.py

import pygame
import random
import config
from assets import Assets
import os
import math

class Enemy:
    def __init__(self, screen_width, screen_height, player_pos):
        # Load dragon sprite as a static image
        dragon_path = Assets.DRAGON
        if os.path.exists(dragon_path):
            image = pygame.image.load(dragon_path).convert_alpha()
            self.image = pygame.transform.smoothscale(image, (256, 256))
        else:
            self.image = pygame.Surface((128, 128))
            self.image.fill((255, 0, 0))
        # Spawn at least 400px away from player
        while True:
            x = random.randint(100, screen_width - 356)
            y = random.randint(100, screen_height - 356)
            if math.hypot(x - player_pos[0], y - player_pos[1]) > 400:
                break
        self.rect = self.image.get_rect(topleft=(x, y))
        self.health = config.ENEMY_HEALTH
        self.max_health = config.ENEMY_HEALTH
        self.speed = config.ENEMY_SPEED
        # For future: projectiles
        self.projectiles = []

    def move_towards(self, target_rect):
        if self.rect.x < target_rect.x: self.rect.x += self.speed
        if self.rect.x > target_rect.x: self.rect.x -= self.speed
        if self.rect.y < target_rect.y: self.rect.y += self.speed
        if self.rect.y > target_rect.y: self.rect.y -= self.speed

    def draw(self, surface):
        surface.blit(self.image, self.rect)
        # Draw health bar above dragon
        bar_width = 60
        bar_height = 8
        bar_x = self.rect.centerx - bar_width // 2
        bar_y = self.rect.top - 20

        # Background (dark red)
        pygame.draw.rect(surface, (100, 0, 0), (bar_x, bar_y, bar_width, bar_height))
        # Health (bright red)
        health_width = int((self.health / self.max_health) * bar_width)
        if health_width > 0:
            pygame.draw.rect(surface, (255, 0, 0), (bar_x, bar_y, health_width, bar_height))
        # Border
        pygame.draw.rect(surface, (255, 255, 255), (bar_x, bar_y, bar_width, bar_height), 1)

    def is_dead(self):
        return self.health <= 0