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Diffstat (limited to 'TurtleArt/tamyblock.py')
| -rw-r--r-- | TurtleArt/tamyblock.py | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/TurtleArt/tamyblock.py b/TurtleArt/tamyblock.py new file mode 100644 index 0000000..308ff42 --- /dev/null +++ b/TurtleArt/tamyblock.py @@ -0,0 +1,245 @@ +#Copyright (c) 2009-10, Walter Bender + +#Permission is hereby granted, free of charge, to any person obtaining a copy +#of this software and associated documentation files (the "Software"), to deal +#in the Software without restriction, including without limitation the rights +#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +#copies of the Software, and to permit persons to whom the Software is +#furnished to do so, subject to the following conditions: + +#The above copyright notice and this permission notice shall be included in +#all copies or substantial portions of the Software. + +#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +#THE SOFTWARE. + +# +# This procedure is invoked when the user-definable block on the "extras" +# palette is selected. Some examples of how to use this block are included +# below. Try uncommenting an example or write your own Python code. +# +# To uncomment code, remove the '# ' in the Python code. Take care to preserve +# the proper indentations. +# +# +# NOTES: +# +# Turtle Art is created in object oriented Python code. This is based +# around the definition of classes and the creation of object(s) which +# are instance(s) of that class. These objects then have properties and +# methods which are defined by their class. +# +# See http://docs.python.org/tutorial/classes.html for a description of +# classes in Python. +# +# Class Defined in Instance Created in +# TurtleArtWindow tawindow.py tw TurtleArtActivity.py +# LogoCode talogo.py lc tawindow.py +# TurtleGraphics tacanvas.py canvas tawindow.py +# Turtles, Turtle taturtle.py turtles tawindow.py, +# tacanvas.py +# Blocks, Block tablock.py block_list tawindow.py +# +# +# Class TurtleArtWindow -- useful properties and methods (from within +# tamyblock.py, lc.tw is the class instance) +# +# Methods and data attributes Example +# set_fullscreen(self) lc.tw.set_fullscreen() +# Note: Hides the Sugar toolbar +# set_cartesian(self, flag) lc.tw.set_cartesian(True) +# Note: True will make the overlay visible; +# False will make it invisible +# set_polar(self, flag) lc.tw.set_polar(True) +# Note: True will make the overlay visible; +# False will make it invisible +# hideshow_button(self, flag) lc.tw.hideshow_button() +# Note: Toggles visibility of blocks and palettes +# self.active_turtle lc.tw.active_turtle +# Note: The active turtle instance +# +# +# Class TurtleGraphics -- useful properties and methods (from within +# tamyblock.py, lc.tw.canvas is the class instance) +# +# Methods and data attributes Example +# clearscreen(self) lc.tw.canvas.clearscreen() +# Note: Clears the screen and resets all turtle and +# pen attributes to default values +# setpen(self, flag) lc.tw.canvas.setpen(True) +# Note: True will set the pen "down", enabling drawing; +# False will set the pen "up" +# forward(self, n) lc.tw.canvas.forward(100) +# Note: Move the turtle forward 100 units +# arc(self, a, r) lc.tw.canvas.arc(120, 50) +# Note: Move the turtle along an arc of 120 degrees +# (clockwise) and radius of 50 units +# setheading(self, a) lc.tw.canvas.setheading(180) +# Note: Set the turtle heading to 180 +# (towards the bottom of the screen) +# self.heading lc.tw.canvas.heading +# Note: The current heading +# setpensize(self, n) lc.tw.canvas.setpensize(25) +# Note: Set the turtle pensize to 25 units +# self.pensize lc.tw.canvas.pensize +# Note: The current pensize +# setcolor(self, c) lc.tw.canvas.color(70) +# Note: Set the pen color to 70 (blue) +# self.color lc.tw.canvas.color +# Note: The current pen color +# setshade(self, s) lc.tw.canvas.shade(50) +# Note: Set the pen shade to 50 +# self.shade lc.tw.canvas.shade +# Note: The current pen shade +# fillscreen(self, c, s) lc.tw.canvas.fillscreen(70, 90) +# Note: Fill the screen with color 70, shade 90 (light blue) +# setxy(self, x, y) lc.tw.canvas.setxy(100,100) +# Note: Move the turtle to position (100, 100) +# self.xcor lc.tw.canvas.xcor +# Note: The current x coordinate of the turtle +# (scaled to current units) +# self.ycor lc.tw.canvas.ycor +# Note: The current y coordinate of the turtle +# (scaled to current units) +# self.set_turtle(name) lc.tw.canvas.set_turtle(1) +# Note: Set the current turtle to turtle '1' +# +# +# Other useful Python functions +# Module Example +# from math import pow pow(2,3) returns 2 to the 3rd power +# Note: See http://docs.python.org/library/math.html +# from math import sin, pi sin(45*pi/180) returns sin of 45 (0.707) +# Note: See http://docs.python.org/library/math.html +# from time import localtime localtime().tm_hour returns the current hour +# Note: See http://docs.python.org/library/time.html +# lc.heap.append(data) adds data to the heap +# Note: See http://docs.python.org/tutorial/datastructures.html +# data = lc.heap.pop(-1) pops data off the heap +# Note: See http://docs.python.org/tutorial/datastructures.html +# + +def myblock(lc, x): + + ########################################################################### + # + # Set rgb color + # + ########################################################################### + + # r = int(x[0]) + # while r < 0: + # r += 256 + # while r > 255: + # r -= 256 + # g = int(x[1]) + # while g < 0: + # g += 256 + # while g > 255: + # g -= 256 + # b = int(x[2]) + # while b < 0: + # b += 256 + # while b > 255: + # b -= 256 + # rgb = "#%02x%02x%02x" % (r,g,b) + # lc.tw.canvas.fgcolor = lc.tw.canvas.cm.alloc_color(rgb) + # return + + ########################################################################### + # + # Draw a dotted line of length x. + # + ########################################################################### + + try: # make sure x is a number + x = float(x) + except ValueError: + return + if lc.tw.canvas.pendown: + dist = 0 + while dist+lc.tw.canvas.pensize < x: # repeat drawing dots + lc.tw.canvas.setpen(True) + lc.tw.canvas.forward(1) + lc.tw.canvas.setpen(False) + lc.tw.canvas.forward((lc.tw.canvas.pensize*2)-1) + dist += (lc.tw.canvas.pensize*2) + lc.tw.canvas.forward(x-dist) # make sure we have moved exactly x + lc.tw.canvas.setpen(True) + else: + lc.tw.canvas.forward(x) + return + + ########################################################################### + # + # Push an uppercase version of a string onto the heap. + # Use a 'pop' block to use the new string. + # + ########################################################################### + + # if type(x) != str: + # X = str(x).upper() + # else: + # X = x.upper() + # lc.heap.append(X) + # return + + ########################################################################### + # + # Push hours, minutes, seconds onto the FILO. + # Use three 'pop' blocks to retrieve these values. + # Note: because we use a FILO (first in, last out heap), + # the first value you will pop will be seconds. + # + ########################################################################### + + # lc.heap.append(localtime().tm_hour) + # lc.heap.append(localtime().tm_min) + # lc.heap.append(localtime().tm_sec) + # return + + ########################################################################### + # + # Add a third dimension (gray) to the color model. + # + ########################################################################### + + # val = 0.3 * lc.tw.rgb[0] + 0.6 * lc.tw.rgb[1] + 0.1 * lc.tw.rgb[2] + # if x != 100: + # x = int(x)%100 + # r = int((val*(100-x) + lc.tw.rgb[0]*x)/100) + # g = int((val*(100-x) + lc.tw.rgb[1]*x)/100) + # b = int((val*(100-x) + lc.tw.rgb[2]*x)/100) + # reallocate current color + # rgb = "#%02x%02x%02x" % (r,g,b) + # lc.tw.canvas.fgcolor = lc.tw.canvas.cm.alloc_color(rgb) + # return + + ########################################################################### + # + # Save an image named x to the Sugar Journal. + # + ########################################################################### + + # lc.tw.save_as_image(str(x)) + # return + + ########################################################################### + # + # Push mouse event to stack + # + ########################################################################### + + # if lc.tw.mouse_flag == 1: + # lc.heap.append(lc.tw.mouse_y) + # lc.heap.append(lc.tw.mouse_x) + # lc.heap.append(1) # mouse event + # lc.tw.mouseflag = 0 + # else: + # lc.heap.append(0) # no mouse event + # return |