不知道為什么沒有爆炸效果。其他圖都畫得很好，唯獨爆炸圖不行explosion = pygame.image.load(os.path.join(image_path, "explosion.png"))explosion_size = explosion.get_rect().sizeexplosion_width = explosion_size[0]for missile_idx, missile_val in enumerate(missiles): missile_pos_x = missile_val[0] missile_pos_y = missile_val[1] #weapon information upgrade missile_rect = missile.get_rect() missile_rect.left = missile_pos_x missile_rect.top = missile_pos_y if missile_rect.colliderect(rock_rect): explosion_sound.play() **explosion_pos_x = missile_pos_x explosion_pos_y = missile_pos_y screen.blit(explosion,(explosion_pos_x,explosion_pos_y))** del(rock) del(missiles) missiles = [] # missile position coordination missiles = [[m[0], m[1] - missile_speed] for m in missiles] # top missile elimination missiles = [[m[0], m[1]] for m in missiles if m[1]>0]
2 回答
森林海
TA貢獻2011條經(jīng)驗 獲得超2個贊
爆炸只顯示了一小會兒。用于pygame.time.get_ticks()返回自調(diào)用以來的毫秒數(shù)pygame.init()。計算必須刪除爆炸圖像之后的時間點。將爆炸的坐標(biāo)和結(jié)束時間點添加到列表的頭部 (?explosionList )。在主應(yīng)用程序循環(huán)中繪制爆炸。從列表尾部刪除過期的爆炸：
explosionList = []
while run:
? ? current_time = pygame.time.get_ticks()
? ? # [...]
? ? for missile_idx, missile_val in enumerate(missiles)
? ? ? ? # [...]
? ? ? ? if missile_rect.colliderect(rock_rect):
? ? ? ? ? ? explosion_sound.play()
? ? ? ? ? ? explosion_pos_x = missile_pos_x
? ? ? ? ? ? explosion_pos_y = missile_pos_y
? ? ? ? ? ? end_time = current_time + 2000 # 2000 milliseconds = 2 seconds
? ? ? ? ? ? explosionList.insert(0, (end_time, explosion_pos_x, explosion_pos_y))
? ? ? ? ? ? # [...]
? ? for i in range(len(explosionList)):
? ? ? ? if current_time < explosionList[i][0]:
? ? ? ? ? ? screen.blit(explosion, (explosionList[i][1], explosionList[i][2]))
? ? ? ? else:
? ? ? ? ? ? explosionList = explosionList[:i]
? ? ? ? ? ? break
? ??
? ? # [...]
使用該算法可以管理多次爆炸。
import pygame
pygame.init()
window = pygame.display.set_mode((210, 210))
def create_rectangles():
? ? global rectangles
? ? w, h = window.get_size()
? ? rectangles = []
? ? for x in range(0, w - 60, 60):
? ? ? ? for y in range(0, h - 60, 60):
? ? ? ? ? ? rectangles.append(pygame.Rect(x + 30, y + 30, 30, 30))
create_rectangles()
hit_list = []
fade_out_time = 3000
run = True
while run:
? ? current_time = pygame.time.get_ticks()
? ??
? ? for event in pygame.event.get():
? ? ? ? if event.type == pygame.QUIT:
? ? ? ? ? ? run = False
? ? point = pygame.mouse.get_pos()
? ? collideindex = pygame.Rect(point, (1, 1)).collidelist(rectangles)
? ? if collideindex >= 0:
? ? ? ? end_time = current_time + fade_out_time
? ? ? ? hit_list.insert(0, (end_time, rectangles[collideindex].center))
? ? ? ? del rectangles[collideindex]
? ? if not hit_list and not rectangles:
? ? ? ? create_rectangles()
? ? window.fill(0)
? ? for r in rectangles:
? ? ? ? pygame.draw.rect(window, (255, 0, 0), r)
? ? for i in range(len(hit_list)):
? ? ? ? delta_time = hit_list[i][0] - current_time
? ? ? ? if delta_time > 0:
? ? ? ? ? ? radius = round(30 * delta_time / fade_out_time)
? ? ? ? ? ? pygame.draw.circle(window, (255, 255, 0), hit_list[i][1], radius)
? ? ? ? else:
? ? ? ? ? ? hit_list = hit_list[:i]
? ? ? ? ? ? break
? ? pygame.display.flip()
智慧大石
TA貢獻1946條經(jīng)驗 獲得超3個贊
如果您想顯示爆炸圖像一段時間，此方法可能很有用。
explosion_list = [] # list for explosion effect
running = True
while running:
start_time = pygame.time.get_ticks() # add time for explosion effect
for missile_idx, missile_val in enumerate(missiles):
missile_pos_x = missile_val[0]
missile_pos_y = missile_val[1]
#weapon information upgrade
missile_rect = missile.get_rect()
missile_rect.left = missile_pos_x
missile_rect.top = missile_pos_y
if missile_rect.colliderect(rock_rect):
explosion_sound.play()
explosion_pos_x = missile_pos_x
explosion_pos_y = missile_pos_y
explosion_time = start_time + 2000 # 1000 milliseconds = 2 seconds
**explosion_list.insert(0, (explosion_time, explosion_pos_x, explosion_pos_y))**
del(rock)
del(missiles)
missiles = []
# missile position coordination
missiles = [[m[0], m[1] - missile_speed] for m in missiles]
# top missile elimination
missiles = [[m[0], m[1]] for m in missiles if m[1]>0]
**for i in range(len(explosion_list)):
if start_time < explosion_time:
pygame.display.update()
screen.blit(explosion, (explosion_pos_x - 30, explosion_pos_y - 30))
pygame.time.delay(10)**
else:
explosion_list = explosion_list[:i]
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