main.py

import pygame
import random
import math
from pygame import mixer
from settings import *
from sprites import *
import os.path


# music: Licensed CC-BY. Attribute to Avgvst.
# https://opengameart.org/content/generic-8-bit-jrpg-soundtrack

class Game:
    def __init__(self):
        # initialize game window, etc
        pygame.init()
        pygame.mixer.init()
        self.screen = pygame.display.set_mode(((width, height)))

        # Title and Icon
        pygame.display.set_caption(title)
        icon = pygame.image.load('img/icon.png')
        pygame.display.set_icon(icon)
        self.font_name = pygame.font.match_font(basic_font)

        self.clock = pygame.time.Clock()
        self.running = True
        self.load_data()

    def load_data(self):
        self.dir = os.path.dirname(__file__)
        img_dir = os.path.join(self.dir, 'img')
        self.spritesheet1 = SpriteSheet(os.path.join(img_dir, spritesheet1))
        self.spritesheet2 = SpriteSheet(os.path.join(img_dir, spritesheet2))

        # load sound
        self.sound_dir = os.path.join(self.dir, 'sound')
        self.jump_sound = pygame.mixer.Sound(os.path.join(self.sound_dir, 'Jump13.wav'))

    def new(self):
        # starts a new game not a new program
        self.score = 0
        self.all_sprites = pygame.sprite.Group()
        self.platforms = pygame.sprite.Group()
        self.player = Player(self)
        self.all_sprites.add(self.player)
        for plat in platform_list:
            p = Platform(self, *plat)
            self.all_sprites.add(p)
            self.platforms.add(p)
        pygame.mixer.music.load(os.path.join(self.sound_dir, '04 - Sanctuary.ogg'))
        self.run()

    def run(self):
        # Game loop
        pygame.mixer.music.play(loops=-1)
        self.playing = True
        while self.playing:
            self.clock.tick(fps)
            self.events()
            self.update()
            self.draw()
        pygame.mixer.music.fadeout(1000)

    def update(self):
        # Game loop - Update
        self.all_sprites.update()
        # check if player hits platform
        hits = pygame.sprite.spritecollide(self.player, self.platforms, False)
        if hits:
            lowest = max(hits, key=lambda x: x.rect.bottom)
            highest = min(hits, key=lambda x: x.rect.bottom)
            #print("Player pos top:", str(self.player.rect.left), "y", str(self.player.pos.x), "bottom",
                  #str(self.player.rect.right))
            if self.player.pos.y < lowest.rect.centery - 5:  # if falling on block - player remains on top of it
                self.player.pos.y = lowest.rect.top
                self.player.vel.y = 0
                self.player.jumping = False
            # if player hits block from the side
            if self.player.rect.right > highest.rect.left or self.player.rect.left < highest.rect.right:
                if self.player.pos.y > highest.rect.centery:
                    if self.player.rect.right > highest.rect.left:
                        self.player.pos.x = highest.rect.left - 18  # 18 is 1 pixel more then half the width of the player sprite
                    if self.player.rect.left < highest.rect.right:
                        self.player.pos.x = highest.rect.right + 18
                    self.player.vel.x = 0
                    self.player.vel.y = 2

            if self.player.pos.y > lowest.rect.bottom:  # if jumping from below - player hits his head on the platform
                self.player.rect.top = lowest.rect.bottom + 5
                self.player.vel.y = 0

        # if player reaches 3/5 of width of the screen
        if self.player.rect.right >= (width * 0.6):
            self.player.pos.x -= abs(self.player.vel.x)
            for plat in self.platforms:
                plat.rect.x -= abs(self.player.vel.x)

        # if player reaches 1/5 of the left side of the screen move screen
        if self.player.rect.left <= (width * 0.2):
            self.player.pos.x += abs(self.player.vel.x)
            for plat in self.platforms:
                plat.rect.x += abs(self.player.vel.x)

        # Die, by falling of the screen
        if self.player.rect.bottom > height + 60:
            self.playing = False

    def events(self):
        # Game loop - events
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                if self.playing:
                    self.playing = False
                self.running = False
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_UP:
                    self.player.jump()
            if event.type == pygame.KEYUP:
                if event.key == pygame.K_UP:
                    self.player.jump_cut()

    def draw(self):
        # Game loop - draw/render
        self.screen.fill((146, 244, 255))
        self.all_sprites.draw(self.screen)
        self.screen.blit(self.player.image, self.player.rect)
        self.draw_text("Score: " + str(self.score), 26, (255, 255, 255), 40, 15)

        # after everything is drawn "flip the board"
        pygame.display.flip()

    def show_start_screen(self):
        # game start screen
        pygame.mixer.music.load(os.path.join(self.sound_dir, '01 - Opening.ogg'))
        pygame.mixer.music.play(loops=-1)
        self.screen.fill((209, 206, 29))
        self.draw_text(title, 48, (255, 255, 255), width // 2, height // 4 + 50)
        self.draw_text("Arrows to move, Z to shoot", 22, (255, 255, 255), width // 2, height // 2)
        self.draw_text("Press a key to play", 22, (255, 255, 255), width // 2, height // 2 + 40)
        pygame.display.flip()
        self.wait_for_key()
        pygame.mixer.music.fadeout(1000)

    def show_go_screen(self):
        # game over screen
        pygame.mixer.music.load(os.path.join(self.sound_dir, '20 - Game Over.ogg'))
        pygame.mixer.music.play(loops=-1)
        if not self.running:
            return
        self.screen.fill(BG_colour)
        self.draw_text("GAME OVER", 48, (255, 255, 255), width // 2, height // 4 + 50)
        self.draw_text("Final Score: " + str(self.score), 22, (255, 255, 255), width / 2, height // 2)
        self.draw_text("Press a key to play again", 22, (255, 255, 255), width // 2, height // 2 + 40)
        pygame.display.flip()
        self.wait_for_key()
        pygame.mixer.music.fadeout(1000)

    def wait_for_key(self):
        waiting = True
        while waiting:
            self.clock.tick(fps)
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    waiting = False
                    self.running = False
                if event.type == pygame.KEYUP:
                    waiting = False

    def draw_text(self, text, size, color, x, y):
        font = pygame.font.Font(self.font_name, size)
        text_surface = font.render(text, True, color)
        text_rect = text_surface.get_rect()
        text_rect.center = (x, y)
        self.screen.blit(text_surface, text_rect)


g = Game()
g.show_start_screen()
while g.running:
    g.new()
    g.show_go_screen()  # go stands for Game Over

pygame.quit()