gistfile1.py

# -*- coding: utf-8 -*-
"""
Created on Sat Nov 01 19:39:44 2014

@author: Peter Farrell
Simulation of world, navigating by arrow buttons!
"""
#from future import __division__
from visual import *
import random
from math import tan,sin, cos

scene = display(height = 600,
                width = 600,
                background = color.cyan)
                
camera = vector(0,5,30)
# Place center of scene at a distance 5 units from the camera:
scene.center = camera+vector(0,0,-5)
# Point the camera:
scene.forward = scene.center-camera
# scene.fov is "field of view" in radians. 5 times the tangent
#  of half the field of view is half of the width of the scene:
scene.range = -5*tan(scene.fov/2)
scene.userspin = False

'''#create the axes:
xaxis = cylinder(pos=(0,0,0),axis=(10,0,0), radius=0.025)
yaxis = cylinder(pos=(0,0,0),axis=(0,10,0), radius=0.025)
zaxis = cylinder(pos=(0,0,0),axis=(0,0,10), radius=0.025)'''

'''for i in range(20): # make a bunch of boxes and 
                    # put them on the floor
    box(pos = (random.randint(-50,50),2.5,
               random.randint(-50,50)),
               height = 5,
                width = 5,
                length = 5,
                color = color.yellow,
                material = materials.wood)'''
t = 0                
for i in range(20): # make a bunch of boxes in a spiral:
    box(pos = (10*sin(t),2*t,10*cos(t)),
               height = 5,
                width = 5,
                length = 5,
                color = color.yellow,
                material = materials.wood)
    t += .5

floor = box(pos = (0,0,0),
            height = .1,
            width = 100,
            length = 100,
            material = materials.marble,
            color = color.white)
            
wall = box(pos = (-50,5,0),
           length = 0.5,
           width = 100,
           height = 10,
           material = materials.wood,
           color = color.cyan)
            
treestump = box(pos = (20,2.5,-5),
                height = 5,
                width = 5,
                length = 5,
                color = color.green,
                material = materials.rough)

scene.autoscale = False

while True:
    rate(10)
    if scene.kb.keys:           #if a key is pressed
        key = scene.kb.getkey() #get which key it is
        if key == 'left':       #rotate left
            scene.forward = scene.forward.rotate(angle=pi/6, 
                                                 axis=(0,1,0))
        if key == 'right':      #rotate right
            scene.forward = scene.forward.rotate(angle=-pi/6, 
                                                 axis=(0,1,0))
        if key == 'up':         #move forwards
            scene.center -= scene.forward
        if key == 'down':       #move backwards
            scene.center += scene.forward