def main():
pygame.init()
background = (0, 0, 0)
screen = pygame.display.set_mode((640, 480), 0, 32)
sprite = pygame.image.load('dennis_0.bmp').convert()
script = [
4, 5, 6, 7, 6, 5, 0
]
idx = 0.0
index = 0
clock = pygame.time.Clock()
pos = (Vector2(*screen.get_size()) - Vector2(*(80, 80))) / 2
target = pos
heading = Vector2()
while True:
for event in pygame.event.get():
if event.type == QUIT:
exit()
time_passed = clock.tick()
time_passed_seconds = time_passed / 1000.0
screen.fill(background)
screen.blit(sprite, pos, (script[index] * 80, 0, 80, 80))
pygame.display.update()
if pygame.mouse.get_pressed()[0]:
target = Vector2( *pygame.mouse.get_pos() ) - Vector2( *(80, 80) ) / 2
idx += 1 / 4.
index = int(idx) % (len(script)-1)
params_vector = Vector2.from_points(pos, target)
if params_vector.get_length() < 5:
idx = 0
index = len(script) - 1
target = pos
## Averagely
params_vector.normalize()
pos += params_vector * 150 * time_passed_seconds
## kind2
# pos += params_vector * time_passed_seconds
## king3
# params_vector.normalize()
# heading = heading + (params_vector * 5)
# pos += heading * time_passed_seconds
pygame.display.update()
def main():
pygame.init()
background = (0, 0, 0)
screen = pygame.display.set_mode((640, 480), 0, 32)
sprite = pygame.image.load('dennis_0.bmp').convert()
script = [4, 5, 6, 7, 6, 5, 0]
idx = 0.0
index = 0
clock = pygame.time.Clock()
pos = (Vector2(*screen.get_size()) - Vector2(*(80, 80))) / 2
target = pos
heading = Vector2()
while True:
for event in pygame.event.get():
if event.type == QUIT:
exit()
time_passed = clock.tick()
time_passed_seconds = time_passed / 1000.0
screen.fill(background)
screen.blit(sprite, pos, (script[index] * 80, 0, 80, 80))
pygame.display.update()
if pygame.mouse.get_pressed()[0]:
target = Vector2(*pygame.mouse.get_pos()) - Vector2(*(80, 80)) / 2
idx += 1 / 4.
index = int(idx) % (len(script) - 1)
params_vector = Vector2.from_points(pos, target)
if params_vector.get_length() < 5:
idx = 0
index = len(script) - 1
target = pos
## Averagely
params_vector.normalize()
pos += params_vector * 150 * time_passed_seconds
## kind2
# pos += params_vector * time_passed_seconds
## king3
# params_vector.normalize()
# heading = heading + (params_vector * 5)
# pos += heading * time_passed_seconds
pygame.display.update()
def line_segment_intersect(line_a, line_b):
"""
return True if line_a intersect with line_b else False
params should be LineSegment object
"""
p1 = line_a.a
p2 = line_a.b
p3 = line_b.a
p4 = line_b.b
vec_a = Vector2.from_points(p3, p1)
vec_b = Vector2.from_points(p3, p4)
d1 = cross_product(vec_a, vec_b)
vec_a = Vector2.from_points(p3, p2)
vec_b = Vector2.from_points(p3, p4)
d2 = cross_product(vec_a, vec_b)
vec_a = Vector2.from_points(p1, p3)
vec_b = Vector2.from_points(p1, p2)
d3 = cross_product(vec_a, vec_b)
vec_a = Vector2.from_points(p1, p4)
vec_b = Vector2.from_points(p1, p2)
d4 = cross_product(vec_a, vec_b)
# normal intersect
if d1 * d2 < 0 and d3 * d4 < 0:
return True
def on_segment(pi, pj, pk):
# pi, pj, pk have to be a tuple as (x, y)
return min(pi[0], pj[0]) <= pk[0] <= max(pi[0], pj[0]) \
and min(pi[1], pj[1]) <= pk[1] <= max(pi[1], pj[1])
# abnormal intersect test
if d1 == 0 and on_segment(p3, p4, p1):
return True
if d2 == 0 and on_segment(p3, p4, p2):
return True
if d3 == 0 and on_segment(p1, p2, p3):
return True
if d4 == 0 and on_segment(p1, p2, p4):
return True
return False
def cal_face_direct(start_point, end_point):
best_direct = None
cos_min = -1
vec_to_target = Vector2.from_points(start_point, end_point)
for vec_point, direct in cfg.Direction.VEC_TO_DIRECT.iteritems():
vec = Vector2(vec_point)
# cosine law for 2 vectors
cos_current = cos_for_vec(vec, vec_to_target)
if cos_current > cos_min:
cos_min = cos_current
best_direct = direct
return best_direct
def find_shoot(self, t):
isdirection = [0, 0]
global playerpos
isdirection[0] = int(playerpos[0] / wallwide)
isdirection[1] = int(playerpos[1] / wallheight)
AB = Vector2.from_points((self.x, self.y),
(isdirection[0], isdirection[1]))
if (isdirection[0] - self.x + 1) * (isdirection[1] - self.y +
1) != 1:
if (isdirection[0] == self.x or isdirection[1]
== self.y) and AB.get_normalized() == self.dir:
if t > 0:
# print 1
self.shoot_tank()
def main():
background_image_path=r'./picture/sushiplate.jpg'
sprite_image_path='./picture/fugu.png'
SCREEN_SIZE=(640,480)
clock=pygame.time.Clock()
position=Vector2(100.0,100.0)
heading=Vector2()
speed=100
pygame.init()
screen = pygame.display.set_mode(SCREEN_SIZE,0,32)
pygame.display.set_caption("hello world")
# font=pygame.font.SysFont('arial',16)
# font_height=font.get_linesize()
background=pygame.image.load(background_image_path).convert()
sprite=pygame.image.load(sprite_image_path).convert_alpha()
destination=Vector2(randint(0,640),randint(0,480))
while True:
for event in pygame.event.get():
if event.type==QUIT:
exit()
screen.blit(background,(0,0))
screen.blit(sprite,position)
time_passed=clock.tick()
time_passed_seconds=time_passed/1000.0
vector_to_mouse=Vector2.from_points(position,destination)
if vector_to_mouse.get_length() > 1:
heading=vector_to_mouse.normalize()
position+=heading*time_passed_seconds*speed
else:
destination=Vector2(randint(0,640),randint(0,480))
pygame.display.update()
clock = pygame.time.Clock()
position = Vector2(100.0, 100.0)
speed = 250
heading = Vector2()
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
exit()
if event.type == MOUSEBUTTONDOWN:
destination_x = event.pos[0] - sprite.get_width()/2.0
destination_y = event.pos[1] - sprite.get_height()/2.0
destination = (destination_x, destination_y)
heading = Vector2.from_points(position, destination)
heading.normalize()
screen.blit(background, (0,0))
screen.blit(sprite, (position.x, position.y))
time_passed = clock.tick()
time_passed_seconds = time_passed / 1000.0
distance_moved = time_passed_seconds * speed
position += heading * distance_moved
pygame.display.update()
screen = pygame.display.set_mode((640,480),0,32)
background = pygame.image.load(background_image_filename).convert()
sprite = pygame.image.load(sprite_image_filename).convert_alpha()
clock = pygame.time.Clock()
position = Vector2(100.0, 100.0)
heading = Vector2()
while True:
for event in pygame.event.get():
if event.type == QUIT:
exit()
screen.blit(background,(0,0))
screen.blit(sprite,position)
time_passed = clock.tick()
time_passed_seconds = time_passed / 1000.0
destination = Vector2(*pygame.mouse.get_pos()) - Vector2(*sprite.get_size())/2
vector_to_mouse = Vector2.from_points(position, destination)
vector_to_mouse .normalize()
heading = heading + (vector_to_mouse * .6)
position += heading * time_passed_seconds
pygame.display.update()
sprite_pos = Vector2(200, 150)
sprite_speed = 300.
sprite_rotation = 0.
sprite_rotation_speed = 360.
star_position = Vector2(100.0, 100.0)
star_speed = 250.
star_heading = Vector2()
#
while True:
for event in pygame.event.get():
if event.type == QUIT:
exit()
if event.type == MOUSEBUTTONDOWN:
star_destination = Vector2(*event.pos) - Vector2(*star.get_size())/2
star_heading = Vector2.from_points(star_position, star_destination)
star_heading.normalize()
pressed_keys = pygame.key.get_pressed()
rotation_direction = 0.
movement_direction = 0.
if pressed_keys[K_LEFT]:
rotation_direction=+1.
elif pressed_keys[K_RIGHT]:
rotation_direction=-1.
if pressed_keys[K_UP]:
movement_direction=-1.
elif pressed_keys[K_DOWN]:
movement_direction = +1.
screen.blit(background, (0,0))
sprite = pygame.image.load(sprite_image_filename).convert_alpha()
clock = pygame.time.Clock()
position = Vector2(100.0, 100.0) # 小鱼所在的初始位置
heading = Vector2()
while True:
for event in pygame.event.get():
if event.type == QUIT:
exit()
screen.blit(background, (0, 0))
screen.blit(sprite, position)
time_passed = clock.tick()
time_passed_seconds = time_passed / 1000.0
# 参数前面加*意味着把列表或元组展开
desitination = Vector2( *pygame.mouse.get_pos() ) \
- Vector2( *sprite.get_size()) / 2
# 计算鱼儿当前位置到鼠标位置的向量
vector_to_mouse = Vector2.from_points(position, desitination)
vector_to_mouse.normalize()
# 这个heading可以看做是鱼的速度。在没有到达鼠标时，加速运动，超过以后则减速
heading = heading + (vector_to_mouse * 0.5)
position += heading * time_passed_seconds
pygame.display.update()
def _heading(self):
return Vector2.from_points(self._position, self._destination)
def getText(msg,color=blue):
font = pygame.font.SysFont('bitstreamveraserif',20)
textsurf = font.render(msg,True,color) # font.render(text,antialias,fg,bg)
return textsurf
# X coordinate of our sprite
fps = 60
# Speed in pixels per seconds
speed = 250.0
position = Vector2(100,100)
heading = Vector2()
while True:
for event in pygame.event.get():
if event.type == QUIT or event.type == KEYDOWN and event.key == K_ESCAPE:
pygame.quit(); exit()
if event.type == MOUSEBUTTONDOWN:
destination = Vector2(*event.pos) - Vector2(*spritesurf.get_size())/2.0
heading = Vector2.from_points(position,destination)
heading.normalize()
screen.blit(bgsurf,(0,0))
screen.blit(spritesurf, position)
# time passed(milliseconds) = clock.tick()
timepassed = clock.tick(fps)/1000.0
distancemoved = timepassed * speed
position += distancemoved * heading
pygame.display.update()
