Michael Murtaugh at 08:44, 24 March 2009

2009-03-24T08:44:16Z

← Older revision		Revision as of 10:44, 24 March 2009
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	~~= Classy Turtles =~~		Simple [[Turtle Graphics]] implemented in Python / [[PIL]] with a Class:

	Simple Turtle Graphics implemented in Python / PIL with a Class:

	<source lang="python">		<source lang="python">

Michael Murtaugh: /* Classy Turtles */

2009-03-24T08:43:48Z

Classy Turtles

New page

= Classy Turtles =

Simple Turtle Graphics implemented in Python / PIL with a Class:

<source lang="python">
import Image, [[ImageDraw]]
import math

def deg2rad (deg):
return ((deg / 360.0) * (math.pi * 2))

class Turtle:

def __init__(self, draw):
self.draw = draw
self.x = 100
self.y = 100
self.heading = 0

def forward (self, steps):
turtleheadingradians = deg2rad(self.heading)
newx = self.x + (math.cos(turtleheadingradians) * steps)
newy = self.y - (math.sin(turtleheadingradians) * steps)
self.draw.line((self.x, self.y, newx, newy))
self.x = newx
self.y = newy

def left (self, angle):
self.heading += angle

def backward (self, steps):
self.forward(-steps)

def right(self, angle):
self.left(-angle)

def nsided (self, n, steps):
for i in range(n):
self.forward(steps)
self.left(360/n)

if (__name__ == "__main__"):
im = Image.new("RGB", (640, 480))
draw = [[ImageDraw]].Draw(im)
t = Turtle(draw)
t.x = 320; t.y = 240
t.nsided(5, 100)

im.show()
</source>

ClassyTurtles - Revision history

Michael Murtaugh at 08:44, 24 March 2009

Michael Murtaugh: /* Classy Turtles */