Count up and count down timers
Course- Python >
import
pygame
# Define some colors
BLACK
=
(
0
,
0
,
0
)
WHITE
=
(
255
,
255
,
255
)
pygame.init()
# Set the height and width of the screen
size
=
[
700
,
500
]
screen
=
pygame.display.set_mode(size)
pygame.display.set_caption(
"My Game"
)
# Loop until the user clicks the close button.
done
=
False
# Used to manage how fast the screen updates
clock
=
pygame.time.Clock()
font
=
pygame.font.Font(
None
,
25
)
frame_count
=
0
frame_rate
=
60
start_time
=
90
# -------- Main Program Loop -----------
while
not
done:
for
event
in
pygame.event.get():
# User did something
if
event.
type
=
=
pygame.QUIT:
# If user clicked close
done
=
True
# Flag that we are done so we exit this loop
# Set the screen background
screen.fill(WHITE)
# ALL CODE TO DRAW SHOULD GO BELOW THIS COMMENT
# --- Timer going up ---
# Calculate total seconds
total_seconds
=
frame_count
/
/
frame_rate
# Divide by 60 to get total minutes
minutes
=
total_seconds
/
/
60
# Use modulus (remainder) to get seconds
seconds
=
total_seconds
%
60
# Use python string formatting to format in leading zeros
output_string
=
"Time: {0:02}:{1:02}"
.
format
(minutes, seconds)
# Blit to the screen
text
=
font.render(output_string,
True
, BLACK)
screen.blit(text, [
250
,
250
])
# --- Timer going down ---
# --- Timer going up ---
# Calculate total seconds
total_seconds
=
start_time
-
(frame_count
/
/
frame_rate)
if
total_seconds <
0
:
total_seconds
=
0
# Divide by 60 to get total minutes
minutes
=
total_seconds
/
/
60
# Use modulus (remainder) to get seconds
seconds
=
total_seconds
%
60
# Use python string formatting to format in leading zeros
output_string
=
"Time left: {0:02}:{1:02}"
.
format
(minutes, seconds)
# Blit to the screen
text
=
font.render(output_string,
True
, BLACK)
screen.blit(text, [
250
,
280
])
# ALL CODE TO DRAW SHOULD GO ABOVE THIS COMMENT
frame_count
+
=
1
# Limit frames per second
clock.tick(frame_rate)
# Go ahead and update the screen with what we've drawn.
pygame.display.flip()
# Be IDLE friendly. If you forget this line, the program will 'hang'
# on exit.
pygame.quit()