问题描述
我正在使用 pygame 从我的赛车方向盘获取输入数据。有一个名为 get_axis
的方法,它返回一个角度作为从 -1 到 1 的浮点数(其中 -1 对应于车轮向左旋转的最大角度,而 1 对应于右侧(不是弧度))。我想将其作为旋转角度(以度为单位)。
import pygame
WIDTH = 360
HEIGHT = 480
FPS = 50
BLACK = (0,0)
pygame.init()
pygame.joystick.init()
joysticks = [pygame.joystick.Joystick(x) for x in range(pygame.joystick.get_count())]
j = joysticks[0]
j.init()
pygame.mixer.init()
screen = pygame.display.set_mode((WIDTH,HEIGHT))
pygame.display.set_caption("My Game")
clock = pygame.time.Clock()
running = True
wheelRange = ... # need to get range racing wheel
while running:
clock.tick(FPS)
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
i = 0
print("value: " + str(j.get_axis(i) * wheelRange) + " deg") #print current wheel position
screen.fill(BLACK)
pygame.display.flip()
pygame.quit()
解决方法
import pygame
from sys import exit as _exit
#handles events
def handleEvents(events):
exitGame = False
for event in events:
if event.type == pygame.QUIT:
pg_window.close()
def write(display:pygame.display,text:str,pos:tuple,size:int,color:tuple):
font = pygame.font.Font(pygame.font.get_default_font(),size)
surf = font.render(f"{text}",True,(color[0],color[1],color[2]))
display.blit(surf,(pos[0],pos[1]))
class PG_Widnow_UI:
def __init__(self,width,height):
pygame.init()
self.widht = width
self.height = height
self.window = pygame.display.set_mode((width,height))
def update(self):
pygame.display.flip()
def clear(self,r,g,b):
self.window.fill((r,b))
def close(self):
pygame.quit()
_exit()
windowWidth = 1000
windowHeight = 50
pg_window = PG_Widnow_UI(windowWidth,windowHeight)
while True:
pg_window.clear(255,255,255)
events = pygame.event.get()
handleEvents(events)
mousePos = pygame.mouse.get_pos()
one_to_minus_one = (mousePos[0] / (windowWidth/2))-1
in_degrees = ((one_to_minus_one + 1) * 360)/2
write(pg_window.window,f"steering wheel: {one_to_minus_one}",(0,0),15,(255,0))
write(pg_window.window,f"in degrees: {in_degrees}",20),0))
pg_window.update()
所以总结一下,你可以做如下转换
in_degrees = ((one_to_minus_one + 1) * 360)/2
如果方向盘总共转动 900 度,那么您可以乘以 900。
in_degrees = ((one_to_minus_one + 1) * 900)/2