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script.py
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script.py
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import mdl
import os
from display import *
from matrix import *
from draw import *
def run(filename):
"""
This function runs an mdl script
"""
color = [255, 255, 255]
tmp = new_matrix()
ident( tmp )
p = mdl.parseFile(filename)
if p:
(commands, symbols) = p
else:
print "Parsing failed."
return
ident(tmp)
stack = [ [x[:] for x in tmp] ]
screen = new_screen()
tmp = new_matrix()
ident(tmp)
step = 0.1
basename = "anim"
frames = 1
vdict = []
for i in range(len(commands)):
a = commands[i]
cmd = a[0]
args = []
if len(a) > 1:
args = a[1:]
if cmd == "basename":
basename = args[0]
elif cmd == "frames":
frames = args[0]
elif cmd == "vary":
vdict.append(args)
#generate frametable
ftable = []
for j in range(frames):
fdict = {}
for vals in vdict:
knobname = vals[0]
vals = vals[1:]
if vals[0] <= j and vals[1] >= j:
percentcomplete = float(j - vals[0]) / float(vals[1] - vals[0])
interpolate = vals[2] + float(vals[3] - vals[2]) * percentcomplete
fdict[knobname] = interpolate
ftable.append(fdict)
#print "FTABLE: " + str(ftable)
#main drawing loop
for frame in range(frames):
fd = ftable[frame]
#print "FD " + str(frame)
print fd
tmp = new_matrix()
ident(tmp)
stack = []
stack.append([ x[:] for x in tmp ])
# print "STACK BEFORE FOR:"
# print stack
for command in commands:
#print command
c = command[0]
args = command[1:]
if c == 'box':
add_box(tmp,
args[0], args[1], args[2],
args[3], args[4], args[5])
matrix_mult( stack[-1], tmp )
draw_polygons(tmp, screen, color)
tmp = []
elif c == 'sphere':
# print "SPHEREARGS:"
# print args
add_sphere(tmp,
args[0], args[1], args[2], args[3], step)
# print "TOP OF STACK:"
# print stack[-1]
matrix_mult( stack[-1], tmp )
draw_polygons(tmp, screen, color)
# print "TMP:"
# print tmp
#print screen
tmp = []
elif c == 'torus':
add_torus(tmp,
args[0], args[1], args[2], args[3], args[4], step)
matrix_mult( stack[-1], tmp )
draw_polygons(tmp, screen, color)
tmp = []
elif c == 'move':
x = 1
if args[-1] in fd.keys():
x = fd[args[-1]]
# print "MOVEKNOB:"
# print x
tmp = make_translate(args[0]*x, args[1]*x, args[2]*x)
matrix_mult(stack[-1], tmp)
stack[-1] = [x[:] for x in tmp]
tmp = []
elif c == 'scale':
x = 1
if args[-1] in fd.keys():
x = fd[args[-1]]
# print "SCALEKNOB:"
# print x
tmp = make_scale(args[0]*x, args[1]*x, args[2]*x)
matrix_mult(stack[-1], tmp)
stack[-1] = [x[:] for x in tmp]
tmp = []
elif c == 'rotate':
x = 1
if args[-1] in fd.keys():
x = fd[args[-1]]
#print "X " + str(x)
# print "ROTATEKNOB:"
# print x
theta = args[1]*x * (math.pi/180)
if args[0] == 'x':
tmp = make_rotX(theta)
elif args[0] == 'y':
tmp = make_rotY(theta)
else:
tmp = make_rotZ(theta)
matrix_mult( stack[-1], tmp )
stack[-1] = [ x[:] for x in tmp]
tmp = []
elif c == 'push':
# print "PUSHSTACK:"
# print stack[-1]
stack.append([l[:] for l in stack[-1]] )
elif c == 'pop':
stack.pop()
elif c == 'display':
display(screen)
elif c == 'save':
save_extension(screen, args[0])
save_extension(screen, "anim/%s%03d.png" % (basename,frame))
clear_screen(screen)
# print "SCREEN"
# print screen
os.system('convert anim/%s*.png %s.gif' % (basename,basename))