mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-10-31 16:57:54 +00:00
141 lines
4.8 KiB
Python
141 lines
4.8 KiB
Python
"""Undocumented Module"""
|
|
|
|
__all__ = ['ParticleInterval']
|
|
|
|
"""
|
|
Contains the ParticleInterval class
|
|
"""
|
|
|
|
from pandac.PandaModules import *
|
|
from direct.directnotify.DirectNotifyGlobal import directNotify
|
|
from Interval import Interval
|
|
|
|
from direct.particles import ParticleEffect
|
|
|
|
class ParticleInterval(Interval):
|
|
"""
|
|
Use this interval when you want to have greater control over a
|
|
ParticleEffect. The interval does not register the effect with
|
|
the global particle and physics managers, but it does call upon
|
|
them to perform its stepping. You should NOT call
|
|
particleEffect.start() with an effect that is being controlled
|
|
by a ParticleInterval.
|
|
"""
|
|
# Name counter
|
|
particleNum = 1
|
|
# create ParticleInterval DirectNotify category
|
|
notify = directNotify.newCategory('ParticleInterval')
|
|
# Class methods
|
|
def __init__(self,
|
|
particleEffect,
|
|
parent,
|
|
worldRelative = 1,
|
|
renderParent = None,
|
|
duration = 0.0,
|
|
softStopT = 0.0,
|
|
cleanup = False,
|
|
name = None):
|
|
"""
|
|
particleEffect is a ParticleEffect
|
|
parent is a NodePath: this is where the effect will be
|
|
parented in the scenegraph
|
|
worldRelative is a boolean: this will override 'renderParent'
|
|
with render
|
|
renderParent is a NodePath: this is where the particles will
|
|
be rendered in the scenegraph
|
|
duration is a float: for the time
|
|
softStopT is a float: no effect if 0.0,
|
|
a positive value will count from the
|
|
start of the interval,
|
|
a negative value will count from the
|
|
end of the interval
|
|
cleanup is a boolean: if True the effect will be destroyed
|
|
and removed from the scenegraph upon
|
|
interval completion
|
|
set to False if planning on reusing
|
|
the interval
|
|
name is a string: use this for unique intervals so that
|
|
they can be easily found in the taskMgr
|
|
"""
|
|
|
|
# Generate unique name
|
|
id = 'Particle-%d' % ParticleInterval.particleNum
|
|
ParticleInterval.particleNum += 1
|
|
if name == None:
|
|
name = id
|
|
# Record instance variables
|
|
self.particleEffect = particleEffect
|
|
self.cleanup = cleanup
|
|
|
|
if parent != None:
|
|
self.particleEffect.reparentTo(parent)
|
|
if worldRelative:
|
|
renderParent = render
|
|
if renderParent:
|
|
for particles in self.particleEffect.getParticlesList():
|
|
particles.setRenderParent(renderParent.node())
|
|
|
|
self.__softStopped = False
|
|
|
|
if softStopT == 0.0:
|
|
self.softStopT = duration
|
|
elif softStopT < 0.0:
|
|
self.softStopT = duration+softStopT
|
|
else:
|
|
self.softStopT = softStopT
|
|
|
|
# Initialize superclass
|
|
Interval.__init__(self, name, duration)
|
|
|
|
def __step(self,dt):
|
|
if self.particleEffect:
|
|
self.particleEffect.accelerate(dt,1,0.05)
|
|
|
|
def __softStart(self):
|
|
if self.particleEffect:
|
|
self.particleEffect.softStart()
|
|
self.__softStopped = False
|
|
|
|
def __softStop(self):
|
|
if self.particleEffect:
|
|
self.particleEffect.softStop()
|
|
self.__softStopped = True
|
|
|
|
def privInitialize(self, t):
|
|
if self.state != CInterval.SPaused:
|
|
# Restarting from a hard stop or just interrupting the
|
|
# current play
|
|
self.__softStart()
|
|
if self.particleEffect:
|
|
self.particleEffect.clearToInitial()
|
|
self.currT = 0
|
|
|
|
if self.particleEffect:
|
|
for forceGroup in self.particleEffect.getForceGroupList():
|
|
forceGroup.enable()
|
|
|
|
Interval.privInitialize(self,t)
|
|
|
|
def privInstant(self):
|
|
self.privInitialize(self.getDuration())
|
|
self.privFinalize()
|
|
|
|
def privStep(self, t):
|
|
if self.state == CInterval.SPaused or t < self.currT:
|
|
# Restarting from a pause.
|
|
self.privInitialize(t)
|
|
else:
|
|
if not self.__softStopped and t > self.softStopT:
|
|
self.__step(self.softStopT-self.currT)
|
|
self.__softStop()
|
|
self.__step(t-self.softStopT)
|
|
else:
|
|
self.__step(t-self.currT)
|
|
Interval.privStep(self,t)
|
|
|
|
def privFinalize(self):
|
|
Interval.privFinalize(self)
|
|
if self.cleanup and self.particleEffect:
|
|
self.particleEffect.cleanup()
|
|
self.particleEffect = None
|
|
|