def emitter_11():
"""Burst, emit from center, velocity along a line"""
e = arcadeplus.Emitter(
center_xy=CENTER_POS,
emit_controller=arcadeplus.EmitBurst(BURST_PARTICLE_COUNT // 4),
particle_factory=lambda emitter: arcadeplus.LifetimeParticle(
filename_or_texture=TEXTURE,
change_xy=arcadeplus.rand_on_line((-2, 1), (2, 1)),
lifetime=DEFAULT_PARTICLE_LIFETIME,
scale=DEFAULT_SCALE,
alpha=DEFAULT_ALPHA))
return emitter_11.__doc__, e
def emitter_25():
"""Interval, emit from center, velocity along a line"""
e = arcadeplus.Emitter(center_xy=CENTER_POS,
emit_controller=arcadeplus.EmitterIntervalWithTime(
DEFAULT_EMIT_INTERVAL, DEFAULT_EMIT_DURATION),
particle_factory=lambda emitter: arcadeplus.
LifetimeParticle(filename_or_texture=TEXTURE,
change_xy=arcadeplus.rand_on_line(
(-2, 1), (2, 1)),
lifetime=DEFAULT_PARTICLE_LIFETIME,
scale=DEFAULT_SCALE,
alpha=DEFAULT_ALPHA))
return emitter_25.__doc__, e
def emitter_6():
"""Burst, emit on line"""
e = arcadeplus.Emitter(
center_xy=CENTER_POS,
emit_controller=arcadeplus.EmitBurst(BURST_PARTICLE_COUNT),
particle_factory=lambda emitter: arcadeplus.LifetimeParticle(
filename_or_texture=TEXTURE,
change_xy=arcadeplus.rand_in_circle(
(0.0, 0.0), PARTICLE_SPEED_SLOW),
lifetime=DEFAULT_PARTICLE_LIFETIME,
center_xy=arcadeplus.rand_on_line((0.0, 0.0),
(SCREEN_WIDTH, SCREEN_HEIGHT)),
scale=DEFAULT_SCALE,
alpha=DEFAULT_ALPHA))
return emitter_6.__doc__, e
def emitter_19():
"""Interval, emit on line"""
e = arcadeplus.Emitter(
center_xy=(0.0, 0.0),
emit_controller=arcadeplus.EmitterIntervalWithTime(
DEFAULT_EMIT_INTERVAL, DEFAULT_EMIT_DURATION),
particle_factory=lambda emitter: arcadeplus.LifetimeParticle(
filename_or_texture=TEXTURE,
change_xy=arcadeplus.rand_in_circle(
(0.0, 0.0), PARTICLE_SPEED_SLOW),
lifetime=DEFAULT_PARTICLE_LIFETIME,
center_xy=arcadeplus.rand_on_line((0.0, 0.0),
(SCREEN_WIDTH, SCREEN_HEIGHT)),
scale=DEFAULT_SCALE,
alpha=DEFAULT_ALPHA))
return emitter_19.__doc__, e
def test_rand_on_line():
"""Smoke test"""
arcadeplus.rand_on_line((-5.5, -2.2), (5.2, 14.7))