电子游戏控制器支持的问题
问题描述
import pygame
import os
import random
import time
import json
from pygame import joystick
pygame.font.init()
pygame.init()
WIDTH, HEIGHT = 1920, 1000
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("space invaders")
WHITE = (255, 255, 255)
#load images
RED_SPACE_SHIP = pygame.transform.scale(pygame.image.load(os.path.join("Assets", "pixel_ship_red_small.png")), (125, 100))
GREEN_SPACE_SHIP = pygame.transform.scale(pygame.image.load(os.path.join("Assets", "pixel_ship_green_small.png")), (125, 100))
BLUE_SPACE_SHIP = pygame.transform.scale(pygame.image.load(os.path.join("Assets", "pixel_ship_blue_small.png")), (125, 100))
#player
YELLOW_SPACE_SHIP = pygame.transform.rotate(pygame.transform.scale(pygame.image.load(os.path.join("Assets", "spaceship_yellow.png")), (154, 121)), 180)
#lasers
RED_LASER = pygame.image.load(os.path.join("Assets", "pixel_laser_red.png"))
BLUE_LASER = pygame.image.load(os.path.join("Assets", "pixel_laser_blue.png"))
GREEN_LASER = pygame.image.load(os.path.join("Assets", "pixel_laser_green.png"))
#player laser
YELLOW_LASER = pygame.image.load(os.path.join("Assets", "pixel_laser_yellow.png"))
#background
BG = pygame.transform.scale(pygame.image.load(
os.path.join('Assets', 'space.png')), (WIDTH, HEIGHT))
class Laser():
def __init__(self, x, y, img):
self.x = x
self.y = y
self.img = img
self.mask = pygame.mask.from_surface(self.img)
def draw(self, window):
window.blit(self.img, (self.x, self.y))
def move(self, vel):
self.y += vel
def off_screen(self, height):
return not(self.y <= height and self.y >= 0)
def collision(self, obj):
return collide(self, obj)
class Ship:
COOLDOWN = 30
def __init__(self, x, y, health = 100):
self.x = x
self.y = y
self.health = health
self.ship_img = None
self.laser_img = None
self.lasers = []
self.cool_down_counter = 0
def draw(self, window):
window.blit(self.ship_img, (self.x, self.y))
for laser in self.lasers:
laser.draw(window)
def move_lasers(self, vel, obj):
self.cooldown()
for laser in self.lasers:
laser.move(vel)
if laser.off_screen(HEIGHT):
self.lasers.remove(laser)
elif laser.collision(obj):
obj.health -= 10
self.lasers.remove(laser)
def cooldown(self):
if self.cool_down_counter >= self.COOLDOWN:
self.cool_down_counter = 0
elif self.cool_down_counter > 0:
self.cool_down_counter += 1
def shoot(self):
if self.cool_down_counter == 0:
laser = Laser(self.x, self.y, self.laser_img)
self.lasers.append(laser)
self.cool_down_counter = 1
def get_width(self):
return self.ship_img.get_width()
def get_height(self):
return self.ship_img.get_height()
class Player(Ship):
def __init__(self, x, y, health = 100):
super().__init__(x, y, health)
self.ship_img = YELLOW_SPACE_SHIP
self.laser_img = YELLOW_LASER
self.mask = pygame.mask.from_surface(self.ship_img)
self.max_health = health
def shoot(self):
if self.cool_down_counter == 0:
laser = Laser(self.x + 26, self.y - 57, self.laser_img)
self.lasers.append(laser)
self.cool_down_counter = 1
def move_lasers(self, vel, objs):
self.cooldown()
for laser in self.lasers:
laser.move(vel)
if laser.off_screen(HEIGHT):
self.lasers.remove(laser)
else:
for obj in objs:
if laser.collision(obj):
objs.remove(obj)
if laser in self.lasers:
self.lasers.remove(laser)
def draw(self, window):
super().draw(window)
self.healthbar(window)
def healthbar(self, window):
pygame.draw.rect(window, (255, 0, 0), (self.x, self.y + self.ship_img.get_height() + 10, self.ship_img.get_width(), 10))
pygame.draw.rect(window, (0, 255, 0), (self.x, self.y + self.ship_img.get_height() + 10, self.ship_img.get_width()* (self.health/self.max_health),10))
class Enemy(Ship):
COLOR_MAP = {
"red": (RED_SPACE_SHIP, RED_LASER),
"green": (GREEN_SPACE_SHIP, GREEN_LASER),
"blue": (BLUE_SPACE_SHIP, BLUE_LASER)
}
def __init__(self, x, y, color, health = 100):
super().__init__(x, y, health)
self.ship_img, self.laser_img = self.COLOR_MAP[color]
self.mask = pygame.mask.from_surface(self.ship_img)
def move(self, vel):
self.y += vel
def shoot(self):
if self.cool_down_counter == 0:
laser = Laser(self.x - 3, self.y + 20, self.laser_img)
self.lasers.append(laser)
self.cool_down_counter = 1
def collide(obj1, obj2):
offset_x = obj2.x - obj1.x
offset_y = obj2.y - obj1.y
return obj1.mask.overlap(obj2.mask, (offset_x, offset_y)) != None
def main():
run = True
FPS = 60
level = 0
lives = 5
lost = False
lost_count = 0
main_font = pygame.font.SysFont("comicsans", 75)
lost_font = pygame.font.SysFont("comicsans", 500)
enemies = []
wave_length = 5
player_vel = 7
laser_vel = 7
enemy_vel = 1
player = Player(WIDTH // 2, 650)
clock = pygame.time.Clock()
def redraw_window():
WIN.blit(BG, (0,0))
#draw text
level_label = main_font.render(f"Level: {level}", 1, WHITE)
lives_label = main_font.render(f"Lives: {lives}", 1, WHITE)
WIN.blit(lives_label, (10, 10))
WIN.blit(level_label, (WIDTH - level_label.get_width() - 10, 10))
player.draw(WIN)
for enemy in enemies:
enemy.draw(WIN)
if lost:
lost_label = lost_font.render("You Lost!", 1, (WHITE))
WIN.blit(lost_label, (WIDTH/2 - lost_label.get_width()/2, HEIGHT / 2 - lost_label.get_height() / 2))
pygame.display.update()
joysticks = []
for i in range(pygame.joystick.get_count()):
joysticks.append(pygame.joystick.Joystick(i))
for joystick in joysticks:
pygame.joystick.init()
print(pygame.joystick.get_init())
with open(os.path.join("ps4_keys.json"), 'r+') as file:
button_keys = json.load(file)
# 0: Left analog horizonal, 1: left analog verticle, 2: right analog horizonal
# 3: right analog verticle, 4: left Triger, 5: Right Trigger
analog_keys = {0:0, 1:0, 2:0, 3:0, 4:-1, 5:-1}
while run:
clock.tick(FPS)
redraw_window()
if lives <= 0 or player.health <= 0:
lost = True
lost_count += 1
if lost:
if lost_count > FPS * 3:
run = False
else:
continue
if len(enemies) == 0:
level += 1
wave_length += 5
for i in range(wave_length):
enemy = Enemy(random.randrange(100, WIDTH-100), random.randrange(-1500, -100), random.choice(["red", "blue", "green"]))
enemies.append(enemy)
for event in pygame.event.get():
if event.type == pygame.QUIT:
quit()
if event.type == pygame.JOYAXISMOTION:
analog_keys[event.axis] = event.value
print(analog_keys)
if abs(analog_keys[0]) > .4:
if analog_keys[0] < -.7:
player.x -= 7
else:
continue
if analog_keys[0] < .7:
player.x += 7
for enemy in enemies[:]:
enemy.move(enemy_vel)
enemy.move_lasers(laser_vel, player)
if random.randrange(0, 120) == 1:
enemy.shoot()
if collide(enemy, player):
player.health -= 10
enemies.remove(enemy)
elif enemy.y + enemy.get_height() > HEIGHT:
lives -= 1
enemies.remove(enemy)
player.move_lasers(-laser_vel, enemies)
def main_menu():
title_font = pygame.font.SysFont("comicsans", 150)
run = True
while run:
WIN.blit(BG, (0,0))
title_label = title_font.render("Click the mouse to begin...", 1, WHITE)
WIN.blit(title_label, (WIDTH / 2 - title_label.get_width() / 2, HEIGHT / 2 - title_label.get_height() / 2))
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if event.type == pygame.MOUSEBUTTONDOWN:
main()
pygame.quit()
main_menu()
^^ 所以这是我的代码(这里也是JSON文件)：
{
"x": 0,
"circle": 1,
"square": 2,
"triangle": 3,
"share": 4,
"PS": 5,
"options": 6,
"left_stick_click": 7,
"right_stick_click": 8,
"L1": 9,
"R1": 10,
"up_arrow": 11,
"down_arrow": 12,
"left_arrow": 13,
"right_arrow": 14,
"touchpad": 15
}
print(pygame.joystick.get_init())打印TRUE，并从print(analog_keys)打印游戏杆金额，但是游戏机没有移动。知道为什么吗？
解决方案
请勿使用JOYAXISMOTION事件。该事件不会连续发生，它只在轴更改时发生一次。
使用pygame.joystick.Joystick.get_axis获取轴的当前位置，并根据轴移动播放器：
def main():
# [...]
while run:
# [...]
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if joysticks:
joystick = joysticks[0]
axis_x, axis_y = (joystick.get_axis(0), joystick.get_axis(1))
if abs(axis_x) > 0.1:
player.x += round(7 * axis_x)
if abs(axis_y) > 0.1:
player.y += round(7 * axis_y)
# [...]
最小示例：
import pygame
from pygame.locals import *
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
x, y = window.get_rect().center
if pygame.joystick.get_count() > 0:
joystick = pygame.joystick.Joystick(0)
joystick.init()
run = True
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
axis_x, axis_y = (joystick.get_axis(0), joystick.get_axis(1))
if abs(axis_x) > 0.1:
x = (x + round(7 * axis_x)) % window.get_width()
if abs(axis_y) > 0.1:
y = (y + round(7 * axis_y)) % window.get_height()
window.fill(0)
pygame.draw.circle(window, (255, 0, 0), (x, y), 10)
pygame.display.flip()
clock.tick(60)
pygame.quit()
exit()
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