Unknown changes by Jack.
This commit is contained in:
Guido van Rossum
parent
05e46ddec4
commit
2426331433
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@ -1,10 +1,7 @@
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#!/ufs/guido/bin/sgi/python
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#! /usr/local/bin/python
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# Simulate the artwork in the hall.
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# Jack Jansen, Feb 91.
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#
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# Please please please don't try to read this code.
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# It is the first GL program I ever wrote, and used to do
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# very different things before it's current function:-)
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from gl import *
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from GL import *
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from math import *
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@ -197,6 +194,7 @@ def axis():
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v3f(0.1,0.1,1.0)
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endline()
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#
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green_velvet = [ DIFFUSE, 0.05, 0.4, 0.05, LMNULL]
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silver = [ DIFFUSE, 0.3, 0.3, 0.3, SPECULAR, 0.9, 0.9, 0.95, \
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SHININESS, 40.0, LMNULL]
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floormat = [ AMBIENT, 0.5, 0.25, 0.15, DIFFUSE, 0.5, 0.25, 0.15, SPECULAR, 0.6, 0.3, 0.2, SHININESS, 20.0, LMNULL]
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@ -212,26 +210,23 @@ floor1light = [ LCOLOR, 1.0, 1.0, 1.0, POSITION, 3.9, -3.9, 0.0, 1.0, \
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lmodel = [ AMBIENT, 0.92, 0.8, 0.5, LOCALVIEWER, 1.0, LMNULL]
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#
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def lighting():
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INDIGO=1 # XXXX Seems indigo only has one light.
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lmdef(DEFMATERIAL, 1, green_velvet)
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lmdef(DEFMATERIAL, 2, silver)
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lmdef(DEFMATERIAL, 3, floormat)
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lmdef(DEFMATERIAL, 4, wallmat)
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lmdef(DEFMATERIAL, 5, offwhite)
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lmdef(DEFMATERIAL, 6, doormat)
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lmdef(DEFLIGHT, 1, toplight)
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if not INDIGO:
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lmdef(DEFLIGHT, 2, floor1light)
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lmdef(DEFLIGHT, 2, floor1light)
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lmdef(DEFLMODEL, 1, lmodel)
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lmbind(MATERIAL, 1)
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lmbind(LIGHT0, 1)
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if not INDIGO:
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lmbind(LIGHT1, 2)
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lmbind(LIGHT1, 2)
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lmbind(LMODEL, 1)
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IdMat=[1.0,0.0,0.0,0.0, 0.0,1.0,0.0,0.0, 0.0,0.0,1.0,0.0, 0.0,0.0,0.0,1.0]
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#
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wrongrange='Wrong Range'
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def defun(axis):
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done = 0
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res = 0.0 # Hack around exec(...)
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while not done:
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print 'F'+axis+'(t) = ',
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s = sys.stdin.readline(100)
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@ -239,24 +234,12 @@ def defun(axis):
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try:
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s = 'def f'+axis+'(t): return '+s
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exec(s, main_dict)
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exec('res = f'+axis+'(0.0)\n')
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if res < -10.0 or res > 10.0:
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raise wrongrange
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exec('res = f'+axis+'(100.0)\n')
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if res < -10.0 or res > 10.0:
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raise wrongrange
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done = 1
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except RuntimeError:
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print 'Sorry, there is a syntax error in your expression'
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except TypeError:
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print 'Please remember to use floating point numbers'
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except wrongrange:
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print 'Sorry, function values out of range (non-periodic function?)'
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def getfunctions():
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print 'Welcome to the CWI art simulator. You can now enter X, Y and Z'
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print 'coordinates as a function of t.'
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print 'Alternatively, you can specify the name of a python module'
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print 'defining functions fx(t), fy(t) and fz(t) on the command line'
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print 'Normal trig functions are available. Please use floating point'
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print 'values only (so 0.0 for 0). Comments to jack@cwi.nl'
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defun('x')
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@ -265,10 +248,7 @@ def getfunctions():
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print 'Ok, here you go. Use mouse+right button to move up/down,'
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print 'mouse+middle to speed up/slow down time. type ESC to quit simulation'
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def main():
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if len(sys.argv) > 1:
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exec('from '+sys.argv[1]+' import *\n')
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else:
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getfunctions()
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getfunctions()
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foreground()
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prefposition(100,600,100,600)
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void = winopen('cyl')
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@ -281,15 +261,15 @@ def main():
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gconfig()
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zbuffer(1)
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mmode(MVIEWING)
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perspective(600, 1.0, 0.01, 20.0)
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perspective(400, 1.0, 1.0, 20.0)
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loadmatrix(IdMat)
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vx = 0.0
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vy = -3.9
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vy = -6.0
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vz = 0.0
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lookat(0.0, -3.9, 0.0, 0.0, 0.0, 0.0, 0)
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lookat(0.0, -6.0, 0.0, 0.0, 0.0, 0.0, 0)
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lighting()
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t = -1.0
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step = 0.2
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step = 1.0
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bol = mkcyl(12,24, 1)
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cable = mkcyl(1, 6, 0)
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floors = drawfloors()
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@ -313,7 +293,7 @@ def main():
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elif (dev==MOUSE1 or dev==MOUSE2) and value == 1:
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if mousing > 0:
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vx = 0.0
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vy = -3.9
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vy = -6.0
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vz = 0.0
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mousing = dev
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oldx = getvaluator(MOUSEX)
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@ -325,10 +305,8 @@ def main():
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newy = getvaluator(MOUSEY)
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if newy <> oldy and mousing==MOUSE1:
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vz = vz + float(newy - oldy)/100.0
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if vz < -5.99:
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vz = -5.99
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dist = sqrt(vx*vx + vy*vy + vz*vz)
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perspective(600, 1.0, 0.01, dist+16.0)
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perspective(400, 1.0, 1.0, dist+16.0)
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loadmatrix(IdMat)
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if vz < 0.0:
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lookat(vx, vy, vz, 0.0, 0.0, 0.0, 1800)
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@ -346,8 +324,54 @@ def main():
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shademodel(FLAT)
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#
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# Draw background and axis
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czclear(0x802020,getgdesc(GD_ZMAX))
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#axis()
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cpack(0x105090)
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clear()
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zclear()
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cpack(0x905010)
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axis()
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#
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# Draw object
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#
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bolx = fx(t)
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boly = fy(t)
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bolz = fz(t)
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err = ''
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if bolx < -4.0 or bolx > 4.0:
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err = 'X('+`bolx`+') out of range [-4,4]'
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if boly < -4.0 or boly > 4.0:
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err = 'Y('+`boly`+') out of range [-4,4]'
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if bolz < -4.0 or bolz > 8.0:
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err = 'Z('+`bolz`+') out of range [-4,8]'
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if not err:
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pushmatrix()
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translate(bolx, boly, bolz)
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scale(0.3, 0.3, 0.3)
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lmbind(MATERIAL, 2)
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callobj(bol)
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popmatrix()
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#
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# Draw the cables
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#
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bolz = bolz + 0.3
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pushmatrix()
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linesmooth(SML_ON)
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bgnline()
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v3i(-4,-4,9)
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v3f(bolx, boly, bolz)
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endline()
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bgnline()
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v3i(-4,4,9)
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v3f(bolx, boly, bolz)
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endline()
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bgnline()
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v3i(4,-4,9)
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v3f(bolx, boly, bolz)
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endline()
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bgnline()
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v3i(4,4,9)
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v3f(bolx, boly, bolz)
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endline()
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popmatrix()
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#
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# draw the floors
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#
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@ -368,51 +392,6 @@ def main():
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translate(0.0, -0.01, 0.0)
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callobj(doors)
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popmatrix()
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#
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# Draw object
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#
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bolx = fx(t)
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boly = fy(t)
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bolz = fz(t)
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err = ''
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if bolx < -4.0 or bolx > 4.0:
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err = 'X('+`bolx`+') out of range [-4,4]'
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if boly < -4.0 or boly > 4.0:
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err = 'Y('+`boly`+') out of range [-4,4]'
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if bolz < -4.0 or bolz > 8.0:
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err = 'Z('+`bolz`+') out of range [-4,8]'
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if not err:
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pushmatrix()
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translate(bolx, boly, bolz)
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scale(0.3, 0.3, 0.3)
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lmbind(MATERIAL, 2)
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blendfunction(BF_ONE, BF_ONE)
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callobj(bol)
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blendfunction(BF_ONE, BF_ZERO)
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popmatrix()
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#
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# Draw the cables
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#
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bolz = bolz + 0.3
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pushmatrix()
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#linesmooth(SML_ON)
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bgnline()
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v3i(-4,-4,9)
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v3f(bolx, boly, bolz)
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endline()
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bgnline()
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v3i(-4,4,9)
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v3f(bolx, boly, bolz)
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endline()
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bgnline()
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v3i(4,-4,9)
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v3f(bolx, boly, bolz)
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endline()
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bgnline()
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v3i(4,4,9)
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v3f(bolx, boly, bolz)
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endline()
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popmatrix()
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if mousing == MOUSE2 or err:
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cpack(0xff0000)
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cmov(0.0, 0.0, 0.4)
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@ -424,6 +403,7 @@ def main():
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if err:
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cpack(0xff00)
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cmov(0.0, 0.0, 0.2)
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print err
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charstr(err)
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pausing = 1
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if pausing:
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