def __init__(self, x, y, direction):
self.x, self.y = (x, y)
self.direction = direction
if direction < 0: self.speed = -800
else: self.speed = 800
self.emitter = emitter.StaticEmitter(
rate=300,
template=Particle(
position=(x, y, 0),
velocity=(0, 0, 0),
color=(1, 1, 0, 0.5),
size=(8, 8, 0),
# rotation?
# up?
),
velocity=Disc((0,0,0), (0,0,1), 200),
time_to_live=self.duration,
)
self.fader = controller.Fader(start_alpha=1,fade_out_start=0,fade_out_end=.5,end_alpha=0)
self.group = ParticleGroup(
controllers=[
self.emitter,
controller.Gravity((0, -100, 0)),
controller.Movement(),
self.fader,
controller.Lifetime(1),
],
renderer=Render('zap-star.png'),
)
self.emitter.emit(1, self.group)
def __init__(self, x, y, size):
self.emitter = emitter.StaticEmitter(
template = Particle(
position=(x, y, 0),
color=(1, 1, 1, .01),
velocity=(0, 0, 0),
size=(64, 64, 0),
),
velocity=Disc((0,0,0), (0,0,1), 400),
)
self.group = ParticleGroup(
controllers=[
self.emitter,
controller.Growth(50),
controller.Movement(),
controller.Fader(start_alpha=1,fade_out_start=0,fade_out_end=.7,end_alpha=0),
controller.Lifetime(.7),
],
renderer = Render('point64.png'),
)
self.emitter.emit(50, self.group)
def __init__(self, rect, scale=1):
x, y = rect.center
self.emitter = emitter.StaticEmitter(
rate = 20,
template = Particle(
position=(x, y, 0),
color=(1, 1, 1, .5),
velocity=(0, 0, 0),
size=(8, 8, 0),
),
velocity=Disc((0,0,0), (0,0,1), rect.width*.75*scale),
)
self.group = ParticleGroup(
controllers=[
self.emitter,
controller.Movement(),
controller.Clumper(50),
controller.Fader(start_alpha=1,fade_out_start=0,fade_out_end=1,end_alpha=0),
controller.Lifetime(1),
],
renderer = Render(self.filename),
)
self.emitter.emit(1, self.group)
def __init__(self, x1, y1, x2, y2):
self.emitter = emitter.StaticEmitter(
rate = (x2-x1) // 5,
template = Particle(
position=(x1, y1, 0),
color=(1, 1, 1, .5),
velocity=(0, 0, 0),
size=(32, 32, 0),
),
position=Line((x1, y1, 0), (x2, y1, 0)),
velocity=AABox((-100, -50, 0), (100, -200, 1)),
)
self.group = ParticleGroup(
controllers=[
self.emitter,
controller.Movement(),
controller.Growth(100),
controller.Gravity((0, -50, 0)),
controller.Fader(start_alpha=1,fade_out_start=0,fade_out_end=1,end_alpha=0),
controller.Lifetime(2),
],
renderer = Render('black-bubble.png'),
)
self.emitter.emit(1, self.group)
# Actors should define emitters; the world will spawn these
particles = ParticleSystemNode()
def load(name):
return pyglet.resource.texture(name)
wake_particles = particles.create_group(
controllers=[
# Drag(0.1, 0.0, (0, 0, 0)),
controller.Movement(),
controller.Lifetime(5),
controller.Fader(start_alpha=0.0,
max_alpha=0.3,
end_alpha=0.0,
fade_in_end=0.2,
fade_out_start=0.3,
fade_out_end=5.0)
],
texture=load('foam.png'))
smoke_particles = particles.create_group(controllers=[
controller.Movement(),
controller.Lifetime(8),
controller.Fader(start_alpha=0.0,
max_alpha=0.2,
end_alpha=0.0,
fade_in_end=0.0,
fade_out_start=0.5,
fade_out_end=8.0),
controller.Growth(growth=2, )
# We should now be able to define all the particle engine stuff
# without code changes to the rest of the game
exhaust = load_texture('exhaust.png')
exhaust_particles = ParticleGroup(
controllers=[
controller.Movement(),
controller.Lifetime(1),
controller.ColorBlender([
(0.0, (1.0, 0.3, 0.3, 0.3)),
(0.2, (1.0, 0.8, 0.3, 0.3)),
(0.5, (1.0, 1.0, 1.0, 0.2)),
(1.0, (1.0, 1.0, 1.0, 0.0)),
]),
controller.Growth(-3)
],
renderer=BillboardRenderer(SpriteTexturizer(exhaust.id)),
)
explosion_particles = ParticleGroup(
controllers=[
controller.Movement(),
controller.Lifetime(2),
controller.Fader(start_alpha=1,
fade_out_start=1,
fade_out_end=2,
end_alpha=0.0)
],
renderer=BillboardRenderer(SpriteTexturizer(exhaust.id)),
)