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parser.py
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parser.py
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from display import *
from matrix import *
from draw import *
def parse_file( fname, points, transform ):
trans = [transform] #this is the only time i wish we
pts = [points] #used python 3 instead of python 2
def do_l(args): #add line
def inner(x0,y0,z0,x1,y1,z1):
add_edge(pts[0],x0,y0,z0,x1,y1,z1)
inner(int(args[0]),int(args[1]),int(args[2]),
int(args[3]),int(args[4]),int(args[5]))
def do_c(args): #add circle
def inner(cx,cy,r):
add_circle(pts[0],cx,cy,0,r,1000)
inner(int(args[0]),int(args[1]),int(args[2]))
def do_h(args): #add hermite
def inner(x0,y0,x1,y1,x2,y2,x3,y3):
add_curve(pts[0],x0,y0,x1,y1,x2,y2,x3,y3,1000,0)
inner(int(args[0]),int(args[1]),int(args[2]),int(args[3]),
int(args[4]),int(args[5]),int(args[6]),int(args[7]))
def do_b(args): #add bezier
def inner(x0,y0,x1,y1,x2,y2,x3,y3):
add_curve(pts[0],x0,y0,x1,y1,x2,y2,x3,y3,1000,1)
inner(int(args[0]),int(args[1]),int(args[2]),int(args[3]),
int(args[4]),int(args[5]),int(args[6]),int(args[7]))
def do_p(args): #add prism
def inner(x,y,z,width,height,depth):
add_prism(pts[0],x,y,z,width,height,depth)
inner(int(args[0]),int(args[1]),int(args[2]),
int(args[3]),int(args[4]),int(args[5]))
def do_m(args): #add sphere
def inner(x,y,radius):
add_sphere(pts[0],x,y,0,radius,10)
inner(int(args[0]),int(args[1]),int(args[2]))
def do_d(args): #add torus
def inner(x,y,radius1,radius2):
#r1 - circle rad
#r2 - rad from torus center to circle center
add_torus(pts[0],x,y,0,radius1,radius2,12)
inner(int(args[0]),int(args[1]),int(args[2]),int(args[3]))
def do_i(args): #identity transform
def inner():
trans[0] = ident(new_matrix(4,4))
inner()
def do_s(args): #scale transform
def inner(sx,sy,sz):
trans[0] = matrix_mult(make_scale(sx,sy,sz),trans[0])
inner(float(args[0]),float(args[1]),float(args[2]))
def do_t(args): #translate transform
def inner(tx,ty,tz):
trans[0] = matrix_mult(make_translate(tx,ty,tz),trans[0])
inner(float(args[0]),float(args[1]),float(args[2]))
def do_x(args): #x rotation transform
def inner(theta):
trans[0] = matrix_mult(make_rotX(theta),trans[0])
inner(float(args[0]))
def do_y(args): #y rotation transform
def inner(theta):
trans[0] = matrix_mult(make_rotY(theta),trans[0])
inner(float(args[0]))
def do_z(args): #z rotation transform
def inner(theta):
trans[0] = matrix_mult(make_rotZ(theta),trans[0])
inner(float(args[0]))
def do_a(args): #apply transform
def inner():
pts[0] = matrix_mult(trans[0], pts[0])
inner()
def do_w(args): #clear points
def inner():
pts = [[]]
inner()
def do_v(args): #view image
def inner():
screen = new_screen()
color = [0,255,0]
draw_polygons(pts[0], screen, color)
display(screen)
inner()
def do_g(args): #save image
def inner(fname):
screen = new_screen()
color = [0,255,0]
draw_polygons(pts[0], screen, color)
save_extension(screen, fname)
inner(args[0])
# {cmd:(argc,f), #description
validcmds = {"l":(6,do_l), #add line to points
"c":(3,do_c), #add circle to points
"h":(8,do_h), #add hermite curve to points
"b":(8,do_b), #add bezier curve to points
"p":(6,do_p), #add rectangular prism to points
"m":(3,do_m), #add sphere munchkin to points
"d":(4,do_d), #add torus donut to points
"i":(0,do_i), #set transform to identity matrix
"s":(3,do_s), #scale transform matrix
"t":(3,do_t), #translate transform matrix
"x":(1,do_x), #rotate transform about x-axis
"y":(1,do_y), #rotate transform about y-axis
"z":(1,do_z), #rotate transform about z-axis
"a":(0,do_a), #apply transform matrix to points
"w":(0,do_w), #clear all edges from points
"v":(0,do_v), #draw point matrix lines to screen
"g":(1,do_g)} #save screen to file
def isvalid(cmd):
return cmd in validcmds.keys()
def argcount(cmd):
return validcmds[cmd][0]
def parseerror():
print "REKT"
def execcmd(args):
validcmds[args[0]][1](args[1:])
def execcmds(cmds, points, transform):
i = 0
args = []
while i<len(cmds):
if len(args) == 0:
if not isvalid(cmds[i]): parseerror()
args+=[cmds[i]]
if len(args)>argcount(args[0]):
execcmd(args)
args=[]
i+=1
f = open(fname)
ftxt = f.read()
f.close()
ctxt = ""
for ln in ftxt.split("\n"):
if "#" in ln: ln = ln[:ln.find("#")]
ctxt += ln + "\n"
cmds = ctxt.split()
execcmds(cmds, points, transform)