[英]How to use Pygame touch events in a mobile game?
游戲目標適用於安卓設備。 當我添加按鈕時,它們似乎一次只能工作一個,我怎樣才能讓它工作更多的按鈕?
這是功能:
def button_move(player_car):
pressed = pygame.mouse.get_pressed()
pos = pygame.mouse.get_pos()
moved = False
if pressed[0] == 1:
if 300 < pos[0] < 400 and 800 < pos[1] < 900:
player_car.move_forward()
moved = True
if 300 < pos[0] < 400 and 1100 < pos[1] < 1200:
player_car.move_backward()
moved = True
if 100 < pos[0] < 200 and 950 < pos[1] < 1050:
player_car.rotate(left=True)
if 500 < pos[0] < 600 and 950 < pos[1] < 1050:
player_car.rotate(right=True)
if not moved:
player_car.reduce_speed()
[...] 他們似乎一次只工作一個 [...]”
你只有一只鼠標。 您必須使用“觸摸”事件。 使用FINGERDOWN
和FINGERUP
事件。 當FINGERDOWN
事件發生時,將手指的位置存儲到字典中,並在FINGERUP
其刪除:
fingers = {}
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if event.type == pygame.FINGERDOWN:
x = event.x * window.get_height()
y = event.y * window.get_width()
fingers[event.finger_id] = x, y
if event.type == pygame.FINGERUP:
fingers.pop(event.finger_id, None)
# [...]
使用這些位置來檢測是否觸摸了按鈕。 使用pygame.Rect
和pygame.Rect.collidepoint
進行“觸摸”檢測。 例如:
rect = pygame.Rect(300, 800, 100, 100)
touched = False
for finger, pos in fingers.items():
if rect.collidepoint(pos):
touched = True
最小的例子:
import pygame
pygame.init()
window = pygame.display.set_mode((300, 300))
clock = pygame.time.Clock()
buttons = [
pygame.Rect(25, 25, 100, 100),
pygame.Rect(175, 25, 100, 100),
pygame.Rect(25, 175, 100, 100),
pygame.Rect(175, 175, 100, 100)]
colors = [(64, 0, 0), (64, 64, 0), (0, 64, 0), (0, 0, 64)]
colorsH = [(255, 0, 0), (255, 255, 0), (0, 255, 0), (0, 0, 255)]
fingers = {}
run = True
while run:
clock.tick(60)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
if event.type == pygame.FINGERDOWN:
x = event.x * window.get_height()
y = event.y * window.get_width()
fingers[event.finger_id] = x, y
if event.type == pygame.FINGERUP:
fingers.pop(event.finger_id, None)
highlight = []
for i, rect in enumerate(buttons):
touched = False
for finger, pos in fingers.items():
if rect.collidepoint(pos):
touched = True
highlight.append(touched)
# the same with list comprehensions
#highlight = [any(r.collidepoint(p) for _, p in fingers.items()) for _, r in enumerate(buttons)]
window.fill(0)
for rect, color, colorH, h in zip(buttons, colors, colorsH, highlight):
c = colorH if h else color
pygame.draw.rect(window, c, rect)
pygame.display.flip()
pygame.quit()
exit()
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