[英]Is there a way to get the coordinates of a specific object/click in pygame?
I want to write a program where if I click, a circle is drawn on the pygame screen.我想编写一个程序,如果单击,则会在 pygame 屏幕上绘制一个圆圈。 If I click again, another circle is drawn as well as a line connecting it to the previous circle drawn.
如果我再次单击,则会绘制另一个圆圈以及将其连接到先前绘制的圆圈的线。 Is there any way to track the coordinates of where you last clicked?
有什么方法可以跟踪您最后一次点击的坐标吗?
ps.附言。 I want to create like a star constellation effect after many clicks (to help you visualize)
我想在多次点击后创建像星座一样的效果(帮助您形象化)
Add a list for the mouse positions:添加鼠标位置列表:
points = []
Add the position to list when the mouse is clicked:单击鼠标时将 position 添加到列表中:
if e.type == MOUSEBUTTONDOWN:
if e.button == 1:
points.append(e.pos)
Draw the points in a loop:在循环中绘制点:
for pos in points:
draw.circle(screen,GREEN, pos, 10)
If there are at least 2 points, then the lines between the points can be drawn by pygame.draw.lines()
:如果至少有 2 个点,则可以通过
pygame.draw.lines()
绘制点之间的线:
if len(points) > 1:
draw.lines(screen, GREEN, False, points)
Based on your previous question, I suggest the following:根据您之前的问题,我建议以下内容:
from pygame import *
init()
size = width, height = 650, 650
screen = display.set_mode(size)
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)
running = True
myClock = time.Clock()
points = []
# Game Loop
while running:
for e in event.get():
if e.type == QUIT:
running = False
if e.type == MOUSEBUTTONDOWN:
if e.button == 1:
points.append(e.pos)
if e.button == 3:
points = []
screen.fill(BLACK)
if len(points) > 1:
draw.lines(screen, GREEN, False, points)
for pos in points:
draw.circle(screen,GREEN, pos, 10)
display.flip()
myClock.tick(60)
quit()
Alternatively the clicked position can be stored ( prev_pos
) and used the next time, when the mouse is clicked to draw a line.或者,单击的 position 可以存储(
prev_pos
)并在下次单击鼠标绘制线条时使用。
I do not recommend this, because you'll lose the information about the clicked positions:我不建议这样做,因为您会丢失有关点击位置的信息:
from pygame import *
init()
size = width, height = 650, 650
screen = display.set_mode(size)
BLACK = (0, 0, 0)
GREEN = (0, 255, 0)
running = True
myClock = time.Clock()
prev_pos = None
# Game Loop
while running:
for e in event.get():
if e.type == QUIT:
running = False
if e.type == MOUSEBUTTONDOWN:
if e.button == 1:
if prev_pos != None:
draw.line(screen, GREEN, prev_pos, e.pos)
prev_pos = e.pos
draw.circle(screen, GREEN, e.pos, 10)
if e.button == 3:
prev_pos = None
screen.fill(BLACK))
display.flip()
myClock.tick(60)
quit()
I think that this will solve your problem: https://www.pygame.org/docs/ref/mouse.html我认为这将解决您的问题: https://www.pygame.org/docs/ref/mouse.html
" pygame.mouse.get_pos() get the mouse cursor position get_pos() -> (x, y) " pygame.mouse.get_pos() 获取鼠标 cursor position get_pos() -> (x, y)
Returns the X and Y position of the mouse cursor. The position is relative to the top-left corner of the display. The cursor position can be located outside of the display window, but is always constrained to the screen."
You can use pygame.draw.circle()
to draw a circle with a center at the point where the mouse is, and a polygon or lines if you'd like to connect them.您可以使用
pygame.draw.circle()
在鼠标所在的点绘制一个圆心,如果您想连接它们,可以使用多边形或线条。
I hope this helps我希望这有帮助
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