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Zaktualizuj 'basic_grid.py'

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Małe usprawnienia kodu: zoptymalizowana metoda Tractor.update, delikatnie zwiększony framerate w celu zapewnienia płynniejszego użytkowania, poprawione komentarze
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Cezary Adamczak 2021-03-15 08:48:34 +01:00
parent 0f0242165e
commit ec6dc2d5d3
1 changed files with 25 additions and 26 deletions
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51
basic_grid.py
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@ -56,35 +56,31 @@ class Tractor(pygame.sprite.Sprite):
if pressed_keys[K_UP]: if pressed_keys[K_UP]:
self.rect.move_ip(0, -(HEIGHT + MARGIN)) self.rect.move_ip(0, -(HEIGHT + MARGIN))
self.position[1] -= 1 self.position[1] -= 1
if self.rect.top <= MARGIN:
self.rect.top = MARGIN
self.position[1] = 0
if pressed_keys[K_DOWN]: if pressed_keys[K_DOWN]:
self.rect.move_ip(0, HEIGHT + MARGIN) self.rect.move_ip(0, HEIGHT + MARGIN)
self.position[1] += 1 self.position[1] += 1
if self.rect.bottom >= SCREEN_HEIGHT-MARGIN:
self.rect.bottom = SCREEN_HEIGHT-MARGIN
self.position[1] = GSIZE-1
if pressed_keys[K_LEFT]: if pressed_keys[K_LEFT]:
self.rect.move_ip(-(WIDTH + MARGIN), 0) self.rect.move_ip(-(WIDTH + MARGIN), 0)
self.position[0] -= 1 self.position[0] -= 1
if self.rect.left < MARGIN:
self.rect.left = MARGIN
self.position[0] = 0
if pressed_keys[K_RIGHT]: if pressed_keys[K_RIGHT]:
self.rect.move_ip(WIDTH + MARGIN, 0) self.rect.move_ip(WIDTH + MARGIN, 0)
self.position[0] += 1 self.position[0] += 1
if self.rect.right > SCREEN_WIDTH-MARGIN:
self.rect.right = SCREEN_WIDTH-MARGIN
self.position[0] = GSIZE-1
if self.rect.left < MARGIN: def hydrate(self, field, pressed_keys):
self.rect.left = MARGIN if pressed_keys[K_SPACE]:
if self.position[0] < 0: field[self.position[0]][self.position[1]].hydrate()
self.position[0] = 0
if self.rect.right > SCREEN_WIDTH-MARGIN:
self.rect.right = SCREEN_WIDTH-MARGIN
if self.position[0] >= GSIZE-1:
self.position[0] = GSIZE-1
if self.rect.top <= MARGIN:
self.rect.top = MARGIN
if self.position[1] < 0:
self.position[1] = 0
if self.rect.bottom >= SCREEN_HEIGHT-MARGIN:
self.rect.bottom = SCREEN_HEIGHT-MARGIN
if self.position[1] >= GSIZE-1:
self.position[1] = GSIZE-1
def hydrate(self, field):
field[self.position[0]][self.position[1]].hydrate()
# Define a Field object by extending pygame.sprite.Sprite # Define a Field object by extending pygame.sprite.Sprite
# The surface drawn on the screen is now an attribute of 'field' # The surface drawn on the screen is now an attribute of 'field'
@ -132,6 +128,7 @@ clock = pygame.time.Clock()
# Main loop # Main loop
while running: while running:
# Look at every event in the queue # Look at every event in the queue
for event in pygame.event.get(): for event in pygame.event.get():
# Did the user hit a key? # Did the user hit a key?
@ -144,13 +141,14 @@ while running:
elif event.type == QUIT: elif event.type == QUIT:
running = False running = False
# Get all keys pressed at a time
pressed_keys = pygame.key.get_pressed() pressed_keys = pygame.key.get_pressed()
# Set the screen background # Update the state of tractor
tractor.update(pressed_keys) tractor.update(pressed_keys)
if pressed_keys[K_SPACE]: tractor.hydrate(field, pressed_keys)
tractor.hydrate(field)
# Set the screen background
screen.fill(DBROWN) screen.fill(DBROWN)
# Draw the field # Draw the field
@ -164,5 +162,6 @@ while running:
# Update the screen # Update the screen
pygame.display.flip() pygame.display.flip()
# Ensure program maintains a rate of 30 frames per second # Ensure program maintains a rate of 15 frames per second
clock.tick(10) clock.tick(15)