آموزش بازی سازی با زبان برنامه نویسی پایتون قسمت یازدهم

با توجه به اضافه شدن کلاس جدید در فایل models.py این فایل و فایل main.py به صورت زیر تغییر میکنند:

#main.py

import pygame
from settings import WIN_HEIGHT,WIN_WIDTH,CAPTION,ENEMY_COUNT,SOUND_EFFECTS,BULLET_COUNT,LOGO
from models import Player,Background,Bullet,Enemy,StatusBar,ScoreMeter,HealthBar,Explosion
import random
from math import dist

pygame.init()
win = pygame.display.set_mode((WIN_WIDTH,WIN_HEIGHT))
pygame.display.set_caption(CAPTION)
pygame.display.set_icon(pygame.image.load(LOGO))
player = Player(WIN_WIDTH//2)
status_bar = StatusBar()
score_meter = ScoreMeter()
health_bar = HealthBar()
backgrounds = [Background(0),Background(-WIN_HEIGHT)]
bullets = []
enemies = []
explosions = []


def explosion_control():
	for explosion in explosions:
		explosion.draw(win)
		explosion.move()
		explosion.remove(explosions,pygame.time.get_ticks())

def enemy_control():
	if len(enemies) < ENEMY_COUNT:
		r_x = random.randint(0,WIN_WIDTH - 64)
		r_y = random.randint(-1200,-200)
		if all(dist((r_x,r_y),(enemy.x,enemy.y))>70 for enemy in enemies):
			Enemy(r_x,r_y).add(enemies)

	for enemy in enemies:
		enemy.draw(win)
		enemy.move()
		if dist((player.x,player.y),(enemy.x,enemy.y))<40:
			if enemy in enemies:
				SOUND_EFFECTS.get("collision").play()
				enemy.remove(enemies)
				player.health -= enemy.damage

		if enemy.y > WIN_HEIGHT:
			enemy.remove(enemies)
		for bullet in bullets:
			if dist((bullet.x,bullet.y+22),(enemy.x+15,enemy.y+30)) < 35:
				if enemy in enemies:
					SOUND_EFFECTS.get("hit").play()
					enemy.remove(enemies)
					Explosion(enemy.x,enemy.y,pygame.time.get_ticks()).add(explosions)
					score_meter.increment_count()
				bullet.remove(bullets)


def bullet_control():
	for bullet in bullets:
		bullet.draw(win)
		bullet.move()
		if bullet.y < 0:
			bullet.remove(bullets) 

def background_control():
	for background in backgrounds:
		background.draw(win)
		background.move()


def player_control():
	player.draw(win)
	player.move()

def redraw():
	win.fill((0,0,0))

	background_control()

	bullet_control()

	enemy_control()

	explosion_control()

	player_control()

	status_bar.draw(win)

	score_meter.draw(win)

	health_bar.draw(win,player.health)

	pygame.display.update()

#main_loop
def main_loop():
	clock = pygame.time.Clock()
	running = True
	while running:
		for event in pygame.event.get():
			if event.type == pygame.QUIT:
				running = False

			if event.type == pygame.KEYDOWN:
				if event.key == pygame.K_RIGHT:
					player.vel = 7
				if event.key == pygame.K_LEFT:
					player.vel = -7
				if event.key == pygame.K_SPACE:
					if len(bullets) < BULLET_COUNT:
						SOUND_EFFECTS.get("shoot").play()
						Bullet(player.x,player.y).add(bullets)

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

		clock.tick(60)
		
		redraw()

main_loop()

#models.py

from settings import (
	WIN_HEIGHT,
	WIN_WIDTH,
	PLAYER,
	BACKGROUND,
	BULLET_IMG,
	ENEMY,
	FONT_SMALL,
	HEART,
	EXPLOSION_EFFECT
)
from pygame import image,transform,draw

class Player(object):
	def __init__(self,x):
		self.x = x - 32
		self.y = WIN_HEIGHT - 130
		self.img = image.load(PLAYER)
		self.vel = 0
		self.health = 100

	def draw(self,screen):
		screen.blit(self.img,(self.x,self.y))

	def move(self):
		if (self.x >= 0 or self.vel > 0) and (self.x <= WIN_WIDTH - 64 or self.vel < 0):
			self.x += self.vel

		if self.vel > 0:
			self.img = transform.rotate(image.load(PLAYER),-15)
			self.y = WIN_HEIGHT - 140

		if self.vel < 0:
			self.img = transform.rotate(image.load(PLAYER),15)
			self.y = WIN_HEIGHT - 140

		if self.vel == 0:
			self.img = image.load(PLAYER)
			self.y = WIN_HEIGHT - 130


class Background(object):
	def __init__(self,y):
		self.x = 0
		self.y = y
		self.img = transform.scale(image.load(BACKGROUND),(WIN_WIDTH,WIN_HEIGHT))
		self.vel = 2

	def draw(self , screen):
		screen.blit(self.img,(self.x,self.y))

	def move(self):
		self.y += self.vel
		if self.y == WIN_HEIGHT:
			self.y = -WIN_HEIGHT

class Enemy(object):
	def __init__(self,x,y):
		self.x = x 
		self.y = y
		self.vel = 3
		self.img = image.load(ENEMY)
		self.damage = 10

	def draw(self,screen):
		screen.blit(self.img,(self.x,self.y))

	def move(self):
		self.y += self.vel

	def add(self,list_):
		list_.append(self)

	def remove(self,list_):
		list_.pop(list_.index(self))



class Bullet(object):
	def __init__(self,x,y):
		self.x = x + 15
		self.y = y
		self.vel = -10
		self.acc = -0.5
		self.img = transform.scale(image.load(BULLET_IMG),(32,32))

	def draw(self,screen):
		screen.blit(self.img,(self.x,self.y))

	def move(self):
		self.vel += self.acc
		self.y += self.vel

	def add(self,list_):
		list_.append(self)

	def remove(self,list_):
		list_.pop(list_.index(self))


class StatusBar(object):
	def __init__(self):
		self.x = 0
		self.y = WIN_HEIGHT - 50
		self.color = (255,255,255)
		self.width = WIN_WIDTH
		self.height = 50

	def draw(self,screen):
		draw.rect(screen,self.color,(self.x,self.y,self.width,self.height))


class ScoreMeter(object):
	def __init__(self):
		self.x = WIN_WIDTH - 250
		self.y = WIN_HEIGHT - 45
		self.count = 0
		self.text = FONT_SMALL.render("SCORE: "+str(self.count),True,(0,0,0))

	def draw(self,screen):
		screen.blit(self.text,(self.x,self.y))

	def increment_count(self):
		self.count += 1
		self.text = FONT_SMALL.render("SCORE: "+str(self.count),True,(0,0,0))

class HealthBar(object):
	def __init__(self):
		self.x = 47
		self.y = WIN_HEIGHT-41
		self.width = 206
		self.height = 32
		self.color = (0,0,0)
		self.meter_height = 26
		self.meter_color = (3,150,23)
		self.pic = transform.scale(image.load(HEART),(40,40))

	def draw(self,screen,health):
		screen.blit(self.pic,(self.x-43,self.y-6))
		draw.rect(screen,self.color,(self.x,self.y,self.width,self.height),3)
		draw.rect(screen,self.meter_color,(self.x+3,self.y+3,2*health,self.meter_height))

		if health <= 40:
			self.meter_color = (201,18,18)
		elif health <= 70:
			self.meter_color = (214,211,0)
		elif health <= 100:
			self.meter_color = (3,150,23)

class Explosion(object):
	def __init__(self,x,y,time):
		self.x = x
		self.y = y
		self.time = time
		self.img = image.load(EXPLOSION_EFFECT)
		self.vel = 2

	def draw(self,screen):
		screen.blit(self.img,(self.x,self.y))

	def move(self):
		self.y += self.vel

	def add(self,list_):
		list_.append(self)

	def remove(self,list_,time):
		if (time - self.time) > 300:
			list_.pop(list_.index(self))

#settings.py

from pygame import font,mixer
import os

font.init()
mixer.pre_init(44100, 16, 1, 512)
mixer.init()

BASE_DIR = os.getcwd()

#display
WIN_WIDTH = 600
WIN_HEIGHT = 750
CAPTION = "pygame tutorial"



#images
PLAYER = "player.png"
BACKGROUND = "background.jpg"
BULLET_IMG = "bullet.png"
ENEMY = "enemy.png"
HEART = "heart.png"
LOGO = "alien.png"
EXPLOSION_EFFECT = "explosion.png"

#number of renders
ENEMY_COUNT = 7
BULLET_COUNT = 10

#fonts
FONT_SMALL = font.SysFont("Sans",30)
FONT_BIG = font.SysFont("Sans",80)

#sound effects
SOUND_EFFECTS = {
	"shoot": mixer.Sound(os.path.join(BASE_DIR,"musics/shoot1.wav")),
	"hit":  mixer.Sound(os.path.join(BASE_DIR,"musics/hit.wav")),
	"collision":  mixer.Sound(os.path.join(BASE_DIR,"musics/collision.wav")),
}

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