def __init__(self, lifetime, color):
default = pygame.Surface((2, 2))
default.fill((208, 70, 72))
super(Particle, self).__init__(default)
sheet = []
dark = 20, 12, 28
steps = 8
for i in range(steps):
amount = i / float(steps - 1)
r = lerp(color[0], dark[0], amount)
g = lerp(color[1], dark[1], amount)
b = lerp(color[2], dark[2], amount)
s = pygame.Surface((2, 2))
s.fill((r, g, b))
sheet.append(s)
frame_time = lifetime / float(steps - 1)
puff = [(image, frame_time) for image in sheet]
self.animation = Animation('puff', puff)
self.add(self.animation)
self.add(DestroyAfter(lifetime))
def createVerticalGradient(dimension, *stops):
surf = pygame.Surface(dimension)
width, height = dimension
num_stops = len(stops)
for h in range(height):
step = float(h) / (height)
# Caclulate the array index
i = min(int(step * (num_stops - 1)), num_stops - 1)
# Adjust the step to properly blend between the gradient stops.
grad_step = step * (num_stops - 1) - i
r = lerp(stops[i][0], stops[i+1][0], grad_step)
g = lerp(stops[i][1], stops[i+1][1], grad_step)
b = lerp(stops[i][2], stops[i+1][2], grad_step)
pygame.draw.line(surf, (r,g,b), (0, h), (width, h))
return surf
def update(self, milliseconds=0):
self.game_object.transform.position = lerp(self.game_object.transform.position, self.__target, self.tracking_strength)
step = 0.1
# Game loop
running = True
while running:
clock.tick(60)
buffer.fill((0,0,0))
bar1.render(buffer)
bar2.render(buffer)
bar3.render(buffer)
# Scale up buffer and draw to screen
screen.blit(pygame.transform.scale(buffer,SCREEN_SIZE),pygame.Rect(ORIGIN,SCREEN_SIZE))
pygame.display.flip()
# Handle input
for event in pygame.event.get():
if event.type == MOUSEMOTION:
x, y = event.pos[0], event.pos[1]
x = x / float(SCREEN_SIZE[0])
y = y / float(SCREEN_SIZE[1])
elif event.type == QUIT:
running = False
bar1.current = lerp(bar1.current, x, step)
bar2.current = lerp(bar2.current, y, step)
bar3.current = lerp(bar3.current, (x + y) / 2.0, step)
