https:\/\/github.com\/formazione\/dafluffypotato<\/a><\/p>\n\n\n\n![\"\"](\"https:\/\/pythonprogramming.altervista.org\/wp-content\/uploads\/2022\/01\/image-19.png\")
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This first part will analyze the code of dafluffypotato to make a platform scrolling game.<\/p>\n\n\n\n
Let’s begin then.<\/p>\n\n\n\n
import pygame, sys, os, random\nfrom pygame.locals import *\n\n\n\ndef load_animation(path: str, frame_durations: list) -> list:\n global animation_frames\n animation_name = path.split('\/')[-1]\n animation_frame_data = []\n n = 0\n for frame in frame_durations: # frame_duration = [7,7]\n animation_frame_id = animation_name + '_' + str(n) # ....run\\run_0\n img_loc = path + '\/' + animation_frame_id + '.png'\n # player_animations\/idle\/idle_0.png\n animation_image = pygame.image.load(img_loc).convert()\n animation_image.set_colorkey((255,255,255))\n animation_frames[animation_frame_id] = animation_image.copy()\n # animation_frames[\"idle\"] = \n for i in range(frame):\n animation_frame_data.append(animation_frame_id)\n # animation_frame_data = [\"run_0\", \"run_0\", \"run_0\"... \"run_1\", \"run_2\"...]\n n += 1\n return animation_frame_data\n\n\nglobal animation_frames\nanimation_frames = {}\nanimation_database = {}\n\nclass Animation:\n\tdef __init__(self, action, time):\n\t\tanimation_database[action] = load_animation(f\"player_animations\/{action}\",[7,7])\n\n\npygame.init() # initiates pygame\npygame.mixer.init()\nclock = pygame.time.Clock()\npygame.display.set_caption('Exploring Newland')\nWINDOW_SIZE = (600, 400)\nscreen = pygame.display.set_mode(WINDOW_SIZE,0 , 32)\ndisplay = pygame.Surface((600, 400))\n# Variables to control the player movements\nmoving_right = False\nmoving_left = False\nvertical_momentum = 0\nair_timer = 0\ntrue_scroll = [0,0] # control camera\nCHUNK_SIZE = 8\n\nAnimation(\"run\", [7,7])\nAnimation(\"idle\", [7,7,40])\n\ngame_map = {}\n\n\n# SOUNDS\njump_sound = pygame.mixer.Sound('jump.wav')\ngrass_sounds = [pygame.mixer.Sound('grass_0.wav'), pygame.mixer.Sound('grass_1.wav')]\ngrass_sounds[0].set_volume(0.2)\ngrass_sounds[1].set_volume(0.2)\n\n# SOUNDTRACK LOOP\npygame.mixer.music.load('music.wav')\npygame.mixer.music.play(-1) # loop = -1\n\nplayer_action = 'idle'\nplayer_frame = 0\nplayer_flip = False\n\ngrass_sound_timer = 0\n\nplayer_rect = pygame.Rect(100, 100, 5, 13)\n# player_rect.x = 100\n\nbackground_objects = [\n [0.25,[120,10,70,400]], # obj 1 parallax \n [0.25,[280,30,40,400]], # obj 2 ...\n [0.5,[30,40,40,400]],\n [0.5,[130,90,100,400]],\n [0.5,[300,80,120,400]]\n ]\n\ndef parallax():\n # horizontal scroll\n true_scroll[0] += (player_rect.x - true_scroll[0] - 152) \/ 20\n true_scroll[0] += (player_rect.x-true_scroll[0]-152)\/\/20\n true_scroll[1] += (player_rect.y-true_scroll[1]-106)\/\/20\n scroll = true_scroll.copy()\n # scroll[0] = int(scroll[0])\n # scroll[1] = int(scroll[1])\n\n # the parallax farest object\n pygame.draw.rect(display,(7,80,75),pygame.Rect(0,120,300,80))\n for background_object in background_objects:\n obj_rect = pygame.Rect( # this is slow, it's farer\n background_object[1][0]-scroll[0]*background_object[0],\n background_object[1][1]-scroll[1]*background_object[0],\n background_object[1][2],\n background_object[1][3])\n if background_object[0] == 0.5:\n # lighter and nearer - faster\n pygame.draw.rect(display,(20,170,150),obj_rect)\n else:\n # darker and farer - slower\n pygame.draw.rect(display,(15,76,73),obj_rect)\n\n\nwhile True: # game loop\n display.fill((146,244,255))\n\n if grass_sound_timer > 0:\n grass_sound_timer -= 1\n parallax()\n\n for event in pygame.event.get(): # event loop\n if event.type == QUIT:\n pygame.quit()\n sys.exit()\n\n screen.blit(pygame.transform.scale(display, WINDOW_SIZE),(0,0))\n pygame.display.update()\n clock.tick(60)<\/pre>\n\n\n\nhttps:\/\/github.com\/formazione\/dafluffypotato<\/a><\/p>\n\n\n\n<\/a><\/figure>\n\n\n\n