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added getter functions for fadeIn and fadeOut ivals for use in cutscenes

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This commit is contained in:
Samir Naik 2007-04-07 21:07:23 +00:00
parent 786af32d44
commit 42a7730537
1 changed files with 43 additions and 21 deletions
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64
direct/src/showbase/Transitions.py
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@ -80,6 +80,42 @@ class Transitions:
)
self.fade.setBin('unsorted', 0)
def getFadeInIval(self, t=0.5, finishIval=None):
"""
Returns an interval without starting it. This is particularly useful in
cutscenes, so when the cutsceneIval is escaped out of we can finish the fade immediately
"""
transitionIval = Sequence(Func(self.noTransitions),
Func(self.loadFade),
Func(self.fade.reparentTo, render2d, FADE_SORT_INDEX),
self.lerpFunc(self.fade, t,
self.alphaOff,
self.alphaOn),
Func(self.fade.detachNode),
name = self.fadeTaskName,
)
if finishIval:
transitionIval.append(finishIval)
return transitionIval
def getFadeOutIval(self, t=0.5, finishIval=None):
"""
Create a sequence that lerps the color out, then
parents the fade to hidden
"""
transitionIval = Sequence(Func(self.noTransitions),
Func(self.noFade),
Func(self.fade.reparentTo,render2d,FADE_SORT_INDEX),
self.lerpFunc(self.fade, t,
self.alphaOn,
self.alphaOff),
name = self.fadeTaskName,
)
if finishIval:
transitionIval.append(finishIval)
return transitionIval
def fadeIn(self, t=0.5, finishIval=None):
"""
Play a fade in transition over t seconds.
@ -87,23 +123,15 @@ class Transitions:
from black to transparent. When the color lerp is finished, it
parents the fade polygon to hidden.
"""
self.noTransitions()
self.loadFade()
if (t == 0):
# Fade in immediately with no lerp
self.noTransitions()
self.loadFade()
self.fade.detachNode()
else:
# Create a sequence that lerps the color out, then
# parents the fade to hidden
self.fade.reparentTo(render2d, FADE_SORT_INDEX)
self.transitionIval = Sequence(self.lerpFunc(self.fade, t,
self.alphaOff,
self.alphaOn),
Func(self.fade.detachNode),
name = self.fadeTaskName,
)
if finishIval:
self.transitionIval.append(finishIval)
self.transitionIval = self.getFadeInIval(t, finishIval)
self.transitionIval.start()
def fadeOut(self, t=0.5, finishIval=None):
@ -115,22 +143,16 @@ class Transitions:
fadeIn or call noFade.
lerp
"""
self.noTransitions()
self.loadFade()
self.fade.reparentTo(render2d, FADE_SORT_INDEX)
if (t == 0):
# Fade out immediately with no lerp
self.noTransitions()
self.loadFade()
self.fade.reparentTo(render2d, FADE_SORT_INDEX)
self.fade.setColor(self.alphaOn)
else:
# Create a sequence that lerps the color out, then
# parents the fade to hidden
self.transitionIval = Sequence(self.lerpFunc(self.fade, t,
self.alphaOn,
self.alphaOff),
name = self.fadeTaskName,
)
if finishIval:
self.transitionIval.append(finishIval)
self.transitionIval = self.getFadeOutIval(t,finishIval)
self.transitionIval.start()
def fadeOutActive(self):