In this episode we will talk about sounds. How to add them in pygame? I found that it was a bit laggy, i.e. there was a delay between the pressing of the button to jump and the release of the sound, but I found a little trick that lets you get rid of the latency, fortunately. Here is the code for the sound. Be careful to the order of the statements, it is very important to avoid the issue I just mentioned:
pygame.mixer.pre_init(44100, -16, 1, 512) pygame.init() pygame.mixer.quit() pygame.mixer.init(22050, -16, 2, 512) pygame.mixer.set_num_channels(32)
The trick here is to put pre_init before pygame init(). Someone also wrote on stackoverflow that he used to quit() the mixer befor the .init method. I experimented and decided to leave them both as you see above. The frequency rate… I think should be the same (44100 or 22050… maybe you should choose only one type, not like I did, but it does not cause me any problem at the moment… I will change it later on). You can also change the buffer size (512 to 1024…), experiment.
This is just to initialize the sound to play you have to load the sounds like this:
jump_sound = pygame.mixer.Sound('data/audio/jump.wav')
grass_sound = pygame.mixer.Sound('data/audio/grass_0.wav')
Then, to play them effectively, you gotta place this statements where you want the sound to play:
pygame.mixer.Sound.play(jump_sound)
The soundtrack in background
To load and play a soundtrack continuosly:
pygame.mixer.music.load('data/audio/music2.wav')
pygame.mixer.music.play(-1)
The whole code
For the moment we will stop here. In another video I will talk about the other stuff I am changing in the game. This is the code, until now:
from pygame.locals import *
import pygame
import time
map1 ="""
wssss sss sss ss ss sw
w w
w w
w wwwwww sssss www
www w s w
w w w w
w wwwww ssssw ww wwww
w wwwwww w w w
w w s www wwww w
w w w w w
w wwwwwwwwwwwww w w w
w w wwwwwww w
w w
wwwwwwwwwwwwwwwwwwwwwwwwwwwww""".splitlines()
map2 = """w w
w w
w ssswwwss sssss w
wwsss w w w
ww www ss w
ww w w w
ww ssss www sss w
ww wwwsss w
ww w w w w
ww www ws sw w
ww w w w s w
w ssswsssssssss w w
w s ssssss w
w w
wwwwwwwwwwwwwwwwwwwwwwwwwwww""".splitlines()
WINDOW_SIZE = 1150, 640
game_map = map1
# The game_map contains the list with the symbols
#===========
# NUSIC
#===========
pygame.mixer.pre_init(44100, -16, 1, 512)
pygame.init()
pygame.mixer.quit()
pygame.mixer.init(22050, -16, 2, 512)
pygame.mixer.set_num_channels(32)
# ===================================
jump_sound = pygame.mixer.Sound('data/audio/jump.wav')
grass_sound = pygame.mixer.Sound('data/audio/grass_0.wav')
# ======== Continuous music in background
pygame.mixer.music.load('data/audio/music2.wav')
pygame.mixer.music.play(-1)
# ======== Game init, Clock and global vars ===
pygame.display.set_caption('Game')
screen = pygame.display.set_mode(WINDOW_SIZE, 0, 32)
display = pygame.Surface((WINDOW_SIZE[0] // 2.5, WINDOW_SIZE[1] // 2.5))
clock = pygame.time.Clock()
font = pygame.font.Font(None, 32)
font2 = pygame.font.Font(None, 16)
# awareness of direction and position
moving_right = False
moving_left = False
# stay_right = True
gravity = 0
air_timer = 0
player_image = pygame.image.load('imgs\\player.png')
player_jump = pygame.image.load('imgs\\player_up2.png')
player_jumpl = pygame.transform.flip(player_jump, 1, 0)
player_climb = pygame.image.load('imgs\\player_climb.png')
player_climbl = pygame.transform.flip(player_climb, 1, 0)
player_stand = pygame.image.load('imgs\\player_stand.png')
# player_img.set_colorkey((255, 255, 255))
p_right = player_image
p_left = pygame.transform.flip(player_image, 1, 0)
player_img = p_right
bg = pygame.image.load("imgs\\bg.png")
# bg2 = pygame.image.load("imgs\\bg2.png")
# Rectangles for collisions
player_rect = pygame.Rect(100, 100, 5, 13)
starting_pos = 100
health = pygame.image.load("imgs\\health.png")
health_rect = pygame.Rect(150, 225, 16, 16)
# climber 5
stamina = 100
def load_tiles():
#symbols and relative image
symb_img = [
# ("o", "dirt"),
# ("x", "grass"),
# ("<", "grassr"),
# (">", "grassl"),
(" ", "space"),
# ("d", "door"),
("w", "wall"),
("s", "wall_s")]
dr = "imgs\\"
tl = {}
for i in symb_img:
tl[i[0]] = pygame.image.load(f'{dr}{i[1]}.png')
return tl
tl = load_tiles()
# =============
# Functions
# =============
def collision_test(rect, tiles):
"Returns the Rect of the tile with which the player collides"
global stamina
hit_list = []
for tile in tiles:
if rect.colliderect(tile):
hit_list.append(tile)
if rect.colliderect(health_rect):
if stamina < 100:
stamina += 10
print("Recovering")
return hit_list
collision_types = {
'top': False, 'bottom': False, 'right': False, 'left': False}
goingright = 0
def move(rect, movement, tiles):
global player_img
global air_timer, gravity, collision_types, moving_right, moving_left
global goingright
global stamina
global player_altitude
global starting_pos
player_altitude = player_rect.y
collision_types = {
'top': False, 'bottom': False, 'right': False, 'left': False}
rect.x += movement[0]
tile = collision_test(rect, tiles)
if tile != []:
tile = tile[0]
# ===================> MOVE RIGHT
if moving_right:
rect.right = tile.left
collision_types['right'] = True
goingright = 1
gravity = -1
player_img = player_climb
stamina -= 0.02
# ====================> MOVE LEFT
elif moving_left:
goingright = 0
rect.left = tile.right
collision_types['left'] = True
gravity = -1
player_img = player_climbl
stamina -=0.02
rect.y += movement[1]
hit_list = collision_test(rect, tiles)
for tile in hit_list:
# === DOWN: falls? ===
if movement[1] > 0:
# If it was falling down
if (rect.bottom - starting_pos) > 50:
print(rect.bottom - starting_pos)
stamina -= 30
pygame.mixer.Sound.play(grass_sound)
time.sleep(2)
starting_pos = rect.bottom
rect.bottom = tile.top
collision_types['bottom'] = True
if not moving_left and not moving_right and gravity > 0:
player_img = player_stand
elif movement[1] < 0:
player_img = player_jump
gravity = -3 # = -1 it attaches to the wall
attached = rect.top = tile.bottom
stamina -= 0.03
#collision_types['top'] = False
if collision_types['bottom']:
air_timer = 0
gravity = 0
else:
air_timer += 1
return rect
def display_tiles():
"Makes the Rects for the 'physics'"
tile_rects = []
y = 0
for line_of_symbols in game_map:
x = 0
for symbol in line_of_symbols:
if symbol == "\n":
symbol = " "
display.blit(tl[symbol], (x * 16, y* 16))
if symbol not in " h":
pass
tile_rects.append(pygame.Rect(x * 16, y * 16, 16, 15))
x += 1
y += 1
return tile_rects
player_altitude = player_rect.y
def display_player(pim):
#player_img = p_right if stay_right else p_left
display.blit(health, (150, 225))
display.blit(pim, (player_rect.x, player_rect.y))
# 500, 500, 50, 50
def display_stamina():
#player_img = p_right if stay_right else p_left
print("health")
def display_bg():
"Displays the background"
global WINDOW_SIZE
display.blit(bg, (0, 0))
def _display(fnt, what, color, where):
text_to_show = font.render(what, 0, pygame.Color(color))
display.blit(text_to_show, where)
def display_text():
# fps
_display(
font,
what = str(int(clock.get_fps())),
color = "white",
where = (0,0)),
_display(font2,
what = "Wall climber",
color = 'blue',
where = (100,0))
_display(font2,
what = "Stamina: " + str(int(stamina)),
color = 'coral',
where = (300,0))
_display(font2,
what = "altitude: " + str(int(player_altitude)),
color = 'coral',
where = (300, 40))
def clear_screen():
display.fill((73, 184, 250))
VELOCITY = 1
#*falling
def move_player():
global loop, player_rect, moving_right, air_timer, moving_left, gravity, collision_types, player_img, stamina
player_movement = [0, 0]
#*falling
# if stamina < 0:
# loop = 0
# MOVES THE PLAYER WHEN GOES RIGHT OR LEFT
if moving_right:
player_movement[0] += VELOCITY
stamina += 0.005
if moving_left:
player_movement[0] -= VELOCITY
stamina += 0.005
player_movement[1] += gravity
gravity += 0.3
if gravity > 3:
gravity = 3
player_rect = move(player_rect, player_movement, tile_rects)
# ============ Keyboard pressing detection
for event in pygame.event.get():
if event.type == QUIT:
loop = 0
if event.type == KEYDOWN:
if event.key == K_RIGHT:
player_img = p_right
moving_right = True
if event.key == K_LEFT:
player_img = p_left
moving_left = True
# ========
# JUMP
# ========
if event.key == K_UP:
if air_timer < 6:
gravity = -5
stamina -= 3
pygame.mixer.Sound.play(jump_sound)
# ==========
# DOWN
# ==========
if event.key == K_DOWN:
if air_timer == 0:
player_img = player_jump
gravity = +1
elif event.type == KEYUP:
if event.key == K_RIGHT:
moving_right = False
if event.key == K_LEFT:
moving_left = False
return player_img
def scale_screen():
screen.blit(pygame.transform.scale(display, WINDOW_SIZE), (0, 0))
loop = 1
while loop:
stamina -= 0.001
clear_screen()
tile_rects = display_tiles()
player_img = move_player()
display_player(player_img)
display_text()
scale_screen()
pygame.display.update()
clock.tick(60)
pygame.quit()
print("Game over")
"""
------- new in pygame: The climber tutorial 5 -----------
diplay_text
shows fps, title and stamina
"""
The images
These go into imgs folder
The video about sounds in Pygame
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