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# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import theme
import kinematic
class KeyFrame:
def __init__(self):
self.clear()
def empty(self):
return self.joints == None
def assign(self, x):
self.middle = x.middle
self.parts = x.parts.copy()
self.sticks = x.sticks.copy()
self.scaled_sticks = x.sticks.copy()
self.joints = x.joints.copy()
self.scaled_joints = initjoints()
scalesticks(self.scaled_sticks, .2)
setjoints(self.scaled_joints, self.scaled_sticks,
(self.x, int(theme.KEYFRAMEHEIGHT/2.0)))
def clear(self):
self.parts = None
self.sticks = None
self.scaled_sticks = None
self.joints = None
self.scaled_joints = None
keys = []
for i in range(5):
key = KeyFrame()
keyframe_width = theme.KEYFRAMEWIDTH/5
key.x = keyframe_width/2 + i*keyframe_width
keys.append(key)
def initjoints():
joints = {}
for stickname in theme.JOINTS:
jname = theme.JOINTS[stickname]
joints[jname] = (0,0)
return joints
def scalesticks(stickdict, i):
for key in stickdict:
(angle,len) = stickdict[key]
newlen = int(len * i)
stickdict[key] = (angle,newlen)
def setjoints(joints, sticks, middle):
# have to traverse in order because
# parent joints must be set right
for stickname in theme.STICKLIST:
(angle,len) = sticks[stickname]
jname = theme.JOINTS[stickname]
(x,y) = kinematic.getparentjoint(jname, joints, middle)
parents = kinematic.getparentsticks(stickname)
panglesum = 0
for parentname in parents:
(pangle,plen) = sticks[parentname]
panglesum += pangle
(nx,ny) = kinematic.getpoints(x,y,angle+panglesum,len)
joints[jname] = (nx,ny)
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