game

import pygame
import random
import math
import sys
import os

pygame.init()
screen_width = 800
screen_height = 600
screen = pygame.display.set_mode((screen_width, screen_height))

def resource_path(relative_path):
    try:
        base_path = sys.path[0]
    except Exception:
        base_path = os.path.abspath(".")
    return os.path.join(base_path, relative_path)

asset_background = resource_path("assets/images/background.png")
print(asset_background)
background = pygame.image.load(asset_background)

asset_icon = resource_path("assets/images/ufo.png")
icon = pygame.image.load(asset_icon)

asset_sound = resource_path("assets/audios/background_music.mp3")
pygame.mixer.music.load(asset_sound)

asset_player = resource_path("assets/images/space-invaders1.png")
playerimg = pygame.image.load(asset_player)

asset_bulletimg = resource_path("assets/images/bullet.png")
bulletimg = pygame.image.load(asset_bulletimg)

asset_over_font = resource_path("assets/fonts/RAVIE.TTF")
over_fon = pygame.font.Font(asset_over_font, 60)

asset_font = resource_path("assets/fonts/comicbd.ttf")
font = pygame.font.Font(asset_font, 32)

pygame.display.set_caption("Yerika en el espacio")
pygame.display.set_icon(icon)
pygame.mixer.music.play(-1)

clock = pygame.time.Clock()

playerX = 370
playery = 470
playerx_change = 0
playery_change = 0

enemyimg = []
enemyX = []
enemyY = []
enemyX_change = []
enemyY_change = []
no_of_enemies = 10

for i in range(no_of_enemies):
    enemy1 = resource_path("assets/images/enemy1.png")
    enemyimg.append(pygame.image.load(enemy1))

    enemy2 = resource_path("assets/images/enemy2.png")
    enemyimg.append(pygame.image.load(enemy2))
    
    enemyX.append(random.randint(0, 736))
    enemyY.append(random.randint(0, 150))
    
    enemyX_change.append(5)
    enemyY_change.append(20)

bulletx = 0
bullety = 480
bulletx_change = 0
bullety_change = 10
bullet_state = "ready"
score = 0

def show_score():
    score_value = font.render("SCORE " + str(score), True, (255, 255, 255))
    screen.blit(score_value, (10, 10))

def player(x, y):
    screen.blit(playerimg, (x, y))

def enemy(x, y, i):
    screen.blit(enemyimg[i], (x, y))

def fire_bullet(x, y):
    global bullet_state
    
    bullet_state = "fire"
    screen.blit(bulletimg, (x + 16, y + 10))

def isCollision(enemyX, enemyY, bulletx, bullety):
    distance = math.sqrt((math.pow(enemyX - bulletx, 2)) + 
                         math.pow(enemyY - bullety, 2))
    if distance < 27:
        return True
    else:
        return False

def game_over_text():
    over_text = over_fon.render("perdisteee lalala", True, (255, 255, 255))
    text_rect = over_text.get_rect(center=(int(screen_width / 2), int(screen_height / 2)))
    screen.blit(over_text, text_rect)

def gameloop():
    global score
    global playerX
    global playerx_change
    global bulletx
    global bullety
    global collision
    global bullet_state
    
    in_game = True
    while in_game:
        screen.fill((0, 0, 0))
        screen.blit(background, (0, 0))
        
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                in_game = False
                pygame.quit()
                sys.exit()

            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    playerx_change = -5
                    
                if event.key == pygame.K_RIGHT:
                    playerx_change = 5
                    
                if event.key == pygame.K_SPACE:
                    if bullet_state == "ready":
                        bulletx = playerX
                        fire_bullet(bulletx, bullety)

            if event.type == pygame.KEYUP:
                if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                    playerx_change = 0

        playerX += playerx_change

        if playerX <= 0:
            playerX = 0
        elif playerX >= 736:
            playerX = 736

        for i in range(no_of_enemies):
            if enemyY[i] > 440:
                for j in range(no_of_enemies):
                    enemyY[j] = 2000
                game_over_text()

            enemyX[i] += enemyX_change[i]
            if enemyX[i] <= 0:
                enemyX_change[i] = 5
                enemyY[i] += enemyY_change[i]
            elif enemyX[i] >= 736:
                enemyX_change[i] = -5
                enemyY[i] += enemyY_change[i]

            collision = isCollision(enemyX[i], enemyY[i], bulletx, bullety)
            if collision:
                bullety = 454
                bullet_state = "ready"
                score += 1
                enemyX[i] = random.randint(0, 736)
                enemyY[i] = random.randint(0, 150)

            enemy(enemyX[i], enemyY[i], i)

        if bullety <= 0:
            bullety = 454
            bullet_state = "ready"
        if bullet_state == "fire":
            fire_bullet(bulletx, bullety)
            bullety -= bullety_change

        player(playerX, playery)
        show_score()
        
        pygame.display.update()
        
        clock.tick(60)

gameloop()