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So the turtles can more easily be used as a visual feedback instrument by the (beginning) programmer. - Different turtle shapes, gif-images as turtle shapes, user defined and user controllable turtle shapes, among them compound (multicolored) shapes. Turtle shapes can be stretched and tilted, which makes turtles very versatile geometrical objects. - Fine control over turtle movement and screen updates via delay(), and enhanced tracer() and speed() methods. - Aliases for the most commonly used commands, like fd for forward etc., following the early Logo traditions. This reduces the boring work of typing long sequences of commands, which often occur in a natural way when kids try to program fancy pictures on their first encounter with turtle graphics. - Turtles now have an undo()-method with configurable undo-buffer. - Some simple commands/methods for creating event driven programs (mouse-, key-, timer-events). Especially useful for programming games. - A scrollable Canvas class. 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Trrrc Cs�tdd�tdd�tdd�tdd�tdd�tdd�td|��d �|_d di|_t�||�||_||_td|_ g|_ |��tj d kr�|��}|�ddddd�|�ddddd�dS)Nr�)��r�r�r�rr�))r�)��)r�r�)��)�� )��)��)r�r�)��)��r�)r�r�)r�r��rr�)�r�)�r�)r�r�)r�r�)r�r�)r�r�)r�r�)r�r�)r�r�)r�r�)r�r�)r�)��Q�#@��Q�@)�G�z. @��Q��@)r�r�)r�r�r�)��Q��r�)��Q��r�)�G�z. �r�)��Q�#�r�r�)r�r�)r�r�)r�r�)r�r�)g�g$�)r�r�)r�r�)r�r�)r�r�))r�r�)r�r�)r�r�)r�r�))r��G�z�)rg��'@)r�r�)�rr)r�r�r�)r�r�rv)Zarrowr�r4ZsquareZtriangler�r0�nopicr�r�darwinZwmZ attributesr�z-topmost�1�0)rr1�_shapes�_bgpicsr.r��_mode�_delayvaluer�� _colormode�_keysr5�sys�platformr�call)r�r5rrrZ rootwindowr�r�r�r��s&� zTurtleScreen.__init__cCs�td|_td|_|�d�|�d�|_d|_d|_d|_g|_ |� d�d D]}|�d |�qP|�d �|j d d �D]}|�d |�|�d |�qzd t_d S)aqDelete all drawings and all turtles from the TurtleScreen. No argument. Reset empty TurtleScreen to its initial state: white background, no backgroundimage, no eventbindings and tracing on. Example (for a TurtleScreen instance named screen): >>> screen.clear() Note: this method is not available as function. rr�allr�r�r�rr�)r�r��N)r�r�r�rKrw�_bgpic� _bgpicname�_tracing�_updatecounter�_turtlesrrRrr�rr�_pen)r��btnr�r�r�r�r5�s zTurtleScreen.clearNcCs||dkr|jS|��}|dkr*td|��||_|dkrp|�|jd|jd|jd|jd�d|_|_|��dS)ahSet turtle-mode ('standard', 'logo' or 'world') and perform reset. Optional argument: mode -- one of the strings 'standard', 'logo' or 'world' Mode 'standard' is compatible with turtle.py. Mode 'logo' is compatible with most Logo-Turtle-Graphics. Mode 'world' uses userdefined 'worldcoordinates'. *Attention*: in this mode angles appear distorted if x/y unit-ratio doesn't equal 1. If mode is not given, return the current mode. Mode Initial turtle heading positive angles ------------|-------------------------|------------------- 'standard' to the right (east) counterclockwise 'logo' upward (north) clockwise Examples: >>> mode('logo') # resets turtle heading to north >>> mode() 'logo' N�r��logo�worldzNo turtle-graphics-mode %s)r�r�r�r�) r�r�r�r�r�r�r6r7r`�r�rr�r�r�r s�zTurtleScreen.modecCs�|��dkr|�d�t||�}t||�}|��\}}|�|d|d�|j|j} } |j||_|j||_||j}||j}|j|} |j|}|�||| |�|� |j| |j| �|� �dS)asSet up a user defined coordinate-system. Arguments: llx -- a number, x-coordinate of lower left corner of canvas lly -- a number, y-coordinate of lower left corner of canvas urx -- a number, x-coordinate of upper right corner of canvas ury -- a number, y-coordinate of upper right corner of canvas Set up user coodinat-system and switch to mode 'world' if necessary. This performs a screen.reset. If mode 'world' is already active, all drawings are redrawn according to the new coordinates. But ATTENTION: in user-defined coordinatesystems angles may appear distorted. (see Screen.mode()) Example (for a TurtleScreen instance named screen): >>> screen.setworldcoordinates(-10,-0.5,50,1.5) >>> for _ in range(36): ... left(10) ... forward(0.5) r��N)rr�r�r%r6r7r�r�r�r�r,)r�ZllxZllyZurxZuryZxspanZyspanZwxZwyZ oldxscaleZ oldyscaler�r�r�r�r�r�r�r',s z TurtleScreen.setworldcoordinatescCsT|dkr2|��d�r(td|�|��}qFtd��nt|t�rFtd|�}||j|<dS)a�Adds a turtle shape to TurtleScreen's shapelist. Arguments: (1) name is the name of a gif-file and shape is None. Installs the corresponding image shape. !! Image-shapes DO NOT rotate when turning the turtle, !! so they do not display the heading of the turtle! (2) name is an arbitrary string and shape is a tuple of pairs of coordinates. Installs the corresponding polygon shape (3) name is an arbitrary string and shape is a (compound) Shape object. Installs the corresponding compound shape. To use a shape, you have to issue the command shape(shapename). call: register_shape("turtle.gif") --or: register_shape("tri", ((0,0), (10,10), (-10,10))) Example (for a TurtleScreen instance named screen): >>> screen.register_shape("triangle", ((5,-3),(0,5),(-5,-3))) Nr�rvz;Bad arguments for register_shape. Use help(register_shape)r�)r�r�rr3r�r�r�r�)r��namerkr�r�r�r#Ss zTurtleScreen.register_shapec Cst|�dkr|d}t|t�rD|�|�s0|dkr4|Stdt|��z|\}}}Wn(ttfk rztdt|��YnX|jdkr�dd�|||fD�\}}}d|kr�d kr�nn.d|kr�d kr�nnd|kr�d ks�ntd t|��d|||fS)aReturn color string corresponding to args. Argument may be a string or a tuple of three numbers corresponding to actual colormode, i.e. in the range 0<=n<=colormode. If the argument doesn't represent a color, an error is raised. r�rr�zbad color string: %s�bad color arguments: %sr�cSsg|]}td|��qS�g�o@��round�r}r�r�r�r�r��sz*TurtleScreen._colorstr..��bad color sequence: %s� #%02x%02x%02x)r�r�r�rQr�� TypeErrorr�r�)r�r9r��g�br�r�r�� _colorstrvs FzTurtleScreen._colorstrcsx��d�s�St��dkr.�fdd�dD�}n4t��dkrV�fdd��dd�D�}ntd ��t�fd d�|D��S)Nr�r�cs"g|]}t�||d�d��qS)r�r��r�r|��cstrr�r�r��sz'TurtleScreen._color..)r�r�r�r�csg|]}dt�|d��qS)r�r�)r}r9r�r�r�r��sr�zbad colorstring: %sc3s|]}|�jdVqdS)r�N)r�)r}r�r�r�r�� sz&TurtleScreen._color..)r�r�r�r�)r�r�rDr�)r�r�r��_color�s zTurtleScreen._colorcCs8|dkr|jS|dkr"t|�|_n|dkr4t|�|_dS)aqReturn the colormode or set it to 1.0 or 255. Optional argument: cmode -- one of the values 1.0 or 255 r, g, b values of colortriples have to be in range 0..cmode. Example (for a TurtleScreen instance named screen): >>> screen.colormode() 1.0 >>> screen.colormode(255) >>> pencolor(240,160,80) Nr�r�)r�r�r�)r�Zcmoder�r�r�r�szTurtleScreen.colormodecCs$|jD]}|�|j�|��qdS)z�Reset all Turtles on the Screen to their initial state. No argument. Example (for a TurtleScreen instance named screen): >>> screen.reset() N)r��_setmoder�r`)r�r�r�r�r�r`�s zTurtleScreen.resetcCs|jS)z�Return the list of turtles on the screen. Example (for a TurtleScreen instance named screen): >>> screen.turtles() [] )r�r�r�r�r�r+�szTurtleScreen.turtlescGs4|r|�|�}nd}|�|�}|dk r0|�|�}|S)a�Set or return backgroundcolor of the TurtleScreen. Arguments (if given): a color string or three numbers in the range 0..colormode or a 3-tuple of such numbers. Example (for a TurtleScreen instance named screen): >>> screen.bgcolor("orange") >>> screen.bgcolor() 'orange' >>> screen.bgcolor(0.5,0,0.5) >>> screen.bgcolor() '#800080' N)r�rRr��r�rr9r�r�r�r�s zTurtleScreen.bgcolorcCsB|dkr|jSt|�|_d|_|dk r0t|�|_|jr>|��dS)aeTurns turtle animation on/off and set delay for update drawings. Optional arguments: n -- nonnegative integer delay -- nonnegative integer If n is given, only each n-th regular screen update is really performed. (Can be used to accelerate the drawing of complex graphics.) Second arguments sets delay value (see RawTurtle.delay()) Example (for a TurtleScreen instance named screen): >>> screen.tracer(8, 25) >>> dist = 2 >>> for i in range(200): ... fd(dist) ... rt(90) ... dist += 2 Nr)r�r�r�r�r,)r��nrr�r�r�r*�s zTurtleScreen.tracercCs|dkr|jSt|�|_dS)z� Return or set the drawing delay in milliseconds. Optional argument: delay -- positive integer Example (for a TurtleScreen instance named screen): >>> screen.delay(15) >>> screen.delay() 15 N)r�r�rNr�r�r�r�szTurtleScreen.delaycCs<tjsdt_t�|jdkr8|jd7_|j|j;_dS)zIncrement update counter.Trr�N)r�_RUNNINGr�r�r�r�r�r�r�� _incrementudcs zTurtleScreen._incrementudccCs<|j}d|_|��D]}|��|��q||_|��dS)z'Perform a TurtleScreen update. TN)r�r+�_update_data�_drawturtlerL)r��tracingrsr�r�r�r,s zTurtleScreen.updatecCs|��dS)z� Return the width of the turtle window. Example (for a TurtleScreen instance named screen): >>> screen.window_width() 640 r�r�r�r�r�r�r.szTurtleScreen.window_widthcCs|��dS)z� Return the height of the turtle window. Example (for a TurtleScreen instance named screen): >>> screen.window_height() 480 r�r�r�r�r�r�r-%szTurtleScreen.window_heightcCs|jS)z�Return the Canvas of this TurtleScreen. No argument. Example (for a Screen instance named screen): >>> cv = screen.getcanvas() >>> cv )r5r�r�r�r�r.s zTurtleScreen.getcanvascCst|j��S)z�Return a list of names of all currently available turtle shapes. No argument. Example (for a TurtleScreen instance named screen): >>> screen.getshapes() ['arrow', 'blank', 'circle', ... , 'turtle'] )�sortedr�r�r�r�r�r�r:s zTurtleScreen.getshapesr�cCs|�|||�dS)a�Bind fun to mouse-click event on canvas. Arguments: fun -- a function with two arguments, the coordinates of the clicked point on the canvas. btn -- the number of the mouse-button, defaults to 1 Example (for a TurtleScreen instance named screen) >>> screen.onclick(goto) >>> # Subsequently clicking into the TurtleScreen will >>> # make the turtle move to the clicked point. >>> screen.onclick(None) N)rk�r�rar�rfr�r�r�rREszTurtleScreen.onclickcCsF|dkr ||jkr6|j�|�n||jkr6|j�|�|�||�dS)amBind fun to key-release event of key. Arguments: fun -- a function with no arguments key -- a string: key (e.g. "a") or key-symbol (e.g. "space") In order to be able to register key-events, TurtleScreen must have focus. (See method listen.) Example (for a TurtleScreen instance named screen): >>> def f(): ... fd(50) ... lt(60) ... >>> screen.onkey(f, "Up") >>> screen.listen() Subsequently the turtle can be moved by repeatedly pressing the up-arrow key, consequently drawing a hexagon N)r��remover@ro�r�rar�r�r�r�rVs zTurtleScreen.onkeycCsN|dkr ||jkr>|j�|�n|dk r>||jkr>|j�|�|�||�dS)aBind fun to key-press event of key if key is given, or to any key-press-event if no key is given. Arguments: fun -- a function with no arguments key -- a string: key (e.g. "a") or key-symbol (e.g. "space") In order to be able to register key-events, TurtleScreen must have focus. (See method listen.) Example (for a TurtleScreen instance named screen and a Turtle instance named turtle): >>> def f(): ... fd(50) ... lt(60) ... >>> screen.onkeypress(f, "Up") >>> screen.listen() Subsequently the turtle can be moved by repeatedly pressing the up-arrow key, or by keeping pressed the up-arrow key. consequently drawing a hexagon. N)r�r�r@rpr�r�r�r�rts zTurtleScreen.onkeypresscCs|��dS)aSet focus on TurtleScreen (in order to collect key-events) No arguments. Dummy arguments are provided in order to be able to pass listen to the onclick method. Example (for a TurtleScreen instance named screen): >>> screen.listen() N)rq)r��xdummy�ydummyr�r�r�r�s zTurtleScreen.listenrcCs|�||�dS)a�Install a timer, which calls fun after t milliseconds. Arguments: fun -- a function with no arguments. t -- a number >= 0 Example (for a TurtleScreen instance named screen): >>> running = True >>> def f(): ... if running: ... fd(50) ... lt(60) ... screen.ontimer(f, 250) ... >>> f() # makes the turtle marching around >>> running = False N)rtrrr�r�r�r"�szTurtleScreen.ontimercCsF|dkr|jS||jkr(|�|�|j|<|�|j|j|�||_dS)aFSet background image or return name of current backgroundimage. Optional argument: picname -- a string, name of a gif-file or "nopic". If picname is a filename, set the corresponding image as background. If picname is "nopic", delete backgroundimage, if present. If picname is None, return the filename of the current backgroundimage. Example (for a TurtleScreen instance named screen): >>> screen.bgpic() 'nopic' >>> screen.bgpic("landscape.gif") >>> screen.bgpic() 'landscape.gif' N)r�r�r3rzr�)r�Zpicnamer�r�r�r�s zTurtleScreen.bgpiccCs|�|||�S)a�Resize the canvas the turtles are drawing on. Optional arguments: canvwidth -- positive integer, new width of canvas in pixels canvheight -- positive integer, new height of canvas in pixels bg -- colorstring or color-tuple, new backgroundcolor If no arguments are given, return current (canvaswidth, canvasheight) Do not alter the drawing window. To observe hidden parts of the canvas use the scrollbars. (Can make visible those parts of a drawing, which were outside the canvas before!) Example (for a Turtle instance named turtle): >>> turtle.screensize(2000,1500) >>> # e.g. to search for an erroneously escaped turtle ;-) )r�rr�r�r�r%�szTurtleScreen.screensize)N)N)N)NN)N)r�N)N)NN)r)N)NNN)%r�r�r�r�r�r�r�r5rr'r#r�r�rr`r+rr*rr�r,r.r-rrrRrrrr"rr%r!r$rrr r�r�r�r�r�sH� ' "' # c@sTeZdZdZedd�edd�edd�d�ZdZdZdZefdd �Z d d�Z dBd d�Zdd�ZdCdd�Z dd�Zdd�Zdd�Zdd�Zdd�Zdd�Zd d!�Zd"d#�Zd$d%�Zd&d'�Zd(d)�ZdDd*d+�Zd,d-�Zd.d/�Zd0d1�ZdEd2d3�ZdFd4d5�Zd6d7�Zd8d9�Z dGd:d;�Z!dHdd?�Z#dJd@dA�Z$eZ%eZ&eZ'eZ(eZ)eZ*eZ+eZ,e Z-dS)K� TNavigatorzRNavigation part of the RawTurtle. Implements methods for turtle movement. r��)r�r�r�r�rr�cCsB|j|_|j|_||_d|_|��d|_|�|�t� |�dSr�) �DEFAULT_ANGLEOFFSET�_angleOffset�DEFAULT_ANGLEORIENT�_angleOrientr�� undobufferr:r�rr`r�r�r�r�r��s zTNavigator.__init__cCstdd�|_tj|j|_dS)zXreset turtle to its initial values Will be overwritten by parent class rN)r� _positionr�START_ORIENTATIONr��_orientr�r�r�r�r`�szTNavigator.resetNcCsL|dkr|jS|dkrdS||_|dkr6d|_d|_n|jd|_d|_dS)z:Set turtle-mode to 'standard', 'world' or 'logo'. Nr�)r�r�rr��@r�)r�rr�_fullcircler�r�r�r�r�szTNavigator._setmodecCs0||_d||_|jdkr"d|_n |d|_dS)z+Helper function for degrees() and radians()ihr�rrN)r� _degreesPerAUr�r�r�Z fullcircler�r�r��_setDegreesPerAUs zTNavigator._setDegreesPerAU��v@cCs|�|�dS)a> Set angle measurement units to degrees. Optional argument: fullcircle - a number Set angle measurement units, i. e. set number of 'degrees' for a full circle. Default value is 360 degrees. Example (for a Turtle instance named turtle): >>> turtle.left(90) >>> turtle.heading() 90 Change angle measurement unit to grad (also known as gon, grade, or gradian and equals 1/100-th of the right angle.) >>> turtle.degrees(400.0) >>> turtle.heading() 100 N)rrr�r�r�r:szTNavigator.degreescCs|�dtj�dS)a Set the angle measurement units to radians. No arguments. Example (for a Turtle instance named turtle): >>> turtle.heading() 90 >>> turtle.radians() >>> turtle.heading() 1.5707963267948966 r�N)rr�r�r�r�r�r�r^4szTNavigator.radianscCs|j|j|}|�|�dS)z)move turtle forward by specified distanceN)rr �_goto)r�r;Zender�r�r��_goBszTNavigator._gocCs||j9}|j�|�|_dS)z=Turn turtle counterclockwise by specified angle if angle > 0.N)r r r��r�r�r�r�r��_rotateGs zTNavigator._rotatecCs ||_dS)zmove turtle to position end.N�r)r��endr�r�r�rLszTNavigator._gotocCs|�|�dS)aMove the turtle forward by the specified distance. Aliases: forward | fd Argument: distance -- a number (integer or float) Move the turtle forward by the specified distance, in the direction the turtle is headed. Example (for a Turtle instance named turtle): >>> turtle.position() (0.00, 0.00) >>> turtle.forward(25) >>> turtle.position() (25.00,0.00) >>> turtle.forward(-75) >>> turtle.position() (-50.00,0.00) N�r�r�r;r�r�r�rCPszTNavigator.forwardcCs|�|�dS)a�Move the turtle backward by distance. Aliases: back | backward | bk Argument: distance -- a number Move the turtle backward by distance ,opposite to the direction the turtle is headed. Do not change the turtle's heading. Example (for a Turtle instance named turtle): >>> turtle.position() (0.00, 0.00) >>> turtle.backward(30) >>> turtle.position() (-30.00, 0.00) Nrrr�r�r�r/gszTNavigator.backcCs|�|�dS)a�Turn turtle right by angle units. Aliases: right | rt Argument: angle -- a number (integer or float) Turn turtle right by angle units. (Units are by default degrees, but can be set via the degrees() and radians() functions.) Angle orientation depends on mode. (See this.) Example (for a Turtle instance named turtle): >>> turtle.heading() 22.0 >>> turtle.right(45) >>> turtle.heading() 337.0 N�rrr�r�r�r_{szTNavigator.rightcCs|�|�dS)a�Turn turtle left by angle units. Aliases: left | lt Argument: angle -- a number (integer or float) Turn turtle left by angle units. (Units are by default degrees, but can be set via the degrees() and radians() functions.) Angle orientation depends on mode. (See this.) Example (for a Turtle instance named turtle): >>> turtle.heading() 22.0 >>> turtle.left(45) >>> turtle.heading() 67.0 Nrrr�r�r�rP�szTNavigator.leftcCs|jS)z�Return the turtle's current location (x,y), as a Vec2D-vector. Aliases: pos | position No arguments. Example (for a Turtle instance named turtle): >>> turtle.pos() (0.00, 240.00) rr�r�r�r�r[�szTNavigator.poscCs |jdS)z� Return the turtle's x coordinate. No arguments. Example (for a Turtle instance named turtle): >>> reset() >>> turtle.left(60) >>> turtle.forward(100) >>> print turtle.xcor() 50.0 rrr�r�r�r�r|�szTNavigator.xcorcCs |jdS)a Return the turtle's y coordinate --- No arguments. Example (for a Turtle instance named turtle): >>> reset() >>> turtle.left(60) >>> turtle.forward(100) >>> print turtle.ycor() 86.6025403784 r�rr�r�r�r�r}�szTNavigator.ycorcCs,|dkr|�t|��n|�t||��dS)atMove turtle to an absolute position. Aliases: setpos | setposition | goto: Arguments: x -- a number or a pair/vector of numbers y -- a number None call: goto(x, y) # two coordinates --or: goto((x, y)) # a pair (tuple) of coordinates --or: goto(vec) # e.g. as returned by pos() Move turtle to an absolute position. If the pen is down, a line will be drawn. The turtle's orientation does not change. Example (for a Turtle instance named turtle): >>> tp = turtle.pos() >>> tp (0.00, 0.00) >>> turtle.setpos(60,30) >>> turtle.pos() (60.00,30.00) >>> turtle.setpos((20,80)) >>> turtle.pos() (20.00,80.00) >>> turtle.setpos(tp) >>> turtle.pos() (0.00,0.00) N)rr)r�r�r�r�r�r�rI�szTNavigator.gotocCs|�dd�|�d�dS)a$Move turtle to the origin - coordinates (0,0). No arguments. Move turtle to the origin - coordinates (0,0) and set its heading to its start-orientation (which depends on mode). Example (for a Turtle instance named turtle): >>> turtle.home() rN)rIrdr�r�r�r�rL�szTNavigator.homecCs|�t||jd��dS)a�Set the turtle's first coordinate to x Argument: x -- a number (integer or float) Set the turtle's first coordinate to x, leave second coordinate unchanged. Example (for a Turtle instance named turtle): >>> turtle.position() (0.00, 240.00) >>> turtle.setx(10) >>> turtle.position() (10.00, 240.00) r�N�rrr)r�r�r�r�r�riszTNavigator.setxcCs|�t|jd|��dS)a�Set the turtle's second coordinate to y Argument: y -- a number (integer or float) Set the turtle's first coordinate to x, second coordinate remains unchanged. Example (for a Turtle instance named turtle): >>> turtle.position() (0.00, 40.00) >>> turtle.sety(-10) >>> turtle.position() (0.00, -10.00) rNr)r�r�r�r�r�rjszTNavigator.setycCsT|dk rt||�}t|t�r"|}n$t|t�r6t|�}nt|t�rF|j}t||j�S)a�Return the distance from the turtle to (x,y) in turtle step units. Arguments: x -- a number or a pair/vector of numbers or a turtle instance y -- a number None None call: distance(x, y) # two coordinates --or: distance((x, y)) # a pair (tuple) of coordinates --or: distance(vec) # e.g. as returned by pos() --or: distance(mypen) # where mypen is another turtle Example (for a Turtle instance named turtle): >>> turtle.pos() (0.00, 0.00) >>> turtle.distance(30,40) 50.0 >>> pen = Turtle() >>> pen.forward(77) >>> turtle.distance(pen) 77.0 N)rr�r�rr�abs)r�r�r�r[r�r�r�r;$s zTNavigator.distancecCs�|dk rt||�}t|t�r"|}n$t|t�r6t|�}nt|t�rF|j}||j\}}tt�||�dtjd�d}||j }|j |j||jS)aCReturn the angle of the line from the turtle's position to (x, y). Arguments: x -- a number or a pair/vector of numbers or a turtle instance y -- a number None None call: distance(x, y) # two coordinates --or: distance((x, y)) # a pair (tuple) of coordinates --or: distance(vec) # e.g. as returned by pos() --or: distance(mypen) # where mypen is another turtle Return the angle, between the line from turtle-position to position specified by x, y and the turtle's start orientation. (Depends on modes - "standard" or "logo") Example (for a Turtle instance named turtle): >>> turtle.pos() (10.00, 10.00) >>> turtle.towards(0,0) 225.0 Nr�r�r) rr�r�rrr�r��atan2r�r rrr)r�r�r�r[�resultr�r�r�ruDs zTNavigator.towardscCsJ|j\}}tt�||�dtjd�d}||j}|j|j||jS)z� Return the turtle's current heading. No arguments. Example (for a Turtle instance named turtle): >>> turtle.left(67) >>> turtle.heading() 67.0 r�r�r) r r�r�rr�r rrr)r�r�r�rr�r�r�rJgs zTNavigator.headingcCs>||��|j}|j}||d||d}|�|�dS)a�Set the orientation of the turtle to to_angle. Aliases: setheading | seth Argument: to_angle -- a number (integer or float) Set the orientation of the turtle to to_angle. Here are some common directions in degrees: standard - mode: logo-mode: -------------------|-------------------- 0 - east 0 - north 90 - north 90 - east 180 - west 180 - south 270 - south 270 - west Example (for a Turtle instance named turtle): >>> turtle.setheading(90) >>> turtle.heading() 90 �@N)rJrrr)r�Zto_angler��fullr�r�r�rdvszTNavigator.setheadingcCsp|jr|j�dg�d|j_|��}|dkr2|j}|dkrjt|�|j}dttdt|�dd�|�}d||}d |}d |t� |tj d|j�}|dkr�|||}}}|��} |� �} |dkr�|�dd�n |�d�|�|�t|�D].}|�|�|�|�|�d�|�|��q|�|�|dk�rR|�| | �|�|�|j�rld |j_dS)a� Draw a circle with given radius. Arguments: radius -- a number extent (optional) -- a number steps (optional) -- an integer Draw a circle with given radius. The center is radius units left of the turtle; extent - an angle - determines which part of the circle is drawn. If extent is not given, draw the entire circle. If extent is not a full circle, one endpoint of the arc is the current pen position. Draw the arc in counterclockwise direction if radius is positive, otherwise in clockwise direction. Finally the direction of the turtle is changed by the amount of extent. As the circle is approximated by an inscribed regular polygon, steps determines the number of steps to use. If not given, it will be calculated automatically. Maybe used to draw regular polygons. call: circle(radius) # full circle --or: circle(radius, extent) # arc --or: circle(radius, extent, steps) --or: circle(radius, steps=6) # 6-sided polygon Example (for a Turtle instance named turtle): >>> turtle.circle(50) >>> turtle.circle(120, 180) # semicircle �seqTNr��g@g�M@r�r�rr�rF)rr�r�rprrr��minr�r�r�r �_tracerrOrr�r)r��radiusZextent�stepsrpZfracr8Zw2�l�trZdlr~r�r�r�r4�s>"" zTNavigator.circlecCsdS�z/dummy method - to be overwritten by child classNr�)r�r�r�r�r�rp�szTNavigator.speedcCsdSr(r�)r��ar�r�r�r�r#�szTNavigator._tracercCsdSr(r�)r�r�r�r�r�rO�szTNavigator._delay)N)r)N)N)N)NN)r)NN)N).r�r�r�r�rr ZDEFAULT_MODErrr�r`r�rr:r^rrrrCr/r_rPr[r|r}rIrLrirjr;rurJrdr4rpr#rOr@r3r0rbrQr\rerfrcr�r�r�r�r�sZ� # # A rc@s�eZdZdZedfdd�Zededfdd�Zd.d d�Zd/dd �Zdd�Z dd�Z dd�Zd0dd�Zdd�Z dd�Zdd�Zdd�Zdd�Zd d!�Zd1d"d#�Zd2d%d&�Zd3d(d)�Zd*d+�Zd,d-�ZeZe Ze Ze Ze ZeZeZd S)4�TPenzFDrawing part of the RawTurtle. Implements drawing properties. racCs||_d|_t�|�dSr�)�_resizemoderr*�_reset)r�rar�r�r�r��sz TPen.__init__rWrAcCsFd|_d|_||_||_d|_d|_d|_d|_d|_d|_ d|_ dS)Nr�Tr�)r�r�r)r�rrr�)�_pensize�_shown� _pencolor� _fillcolor�_drawing�_speed�_stretchfactor�_shearfactor�_tilt�_shapetrafo� _outlinewidth)r�rWrAr�r�r�r,�szTPen._resetNcCs.|dkr|jS|��}|dkr*|j|d�dS)azSet resizemode to one of the values: "auto", "user", "noresize". (Optional) Argument: rmode -- one of the strings "auto", "user", "noresize" Different resizemodes have the following effects: - "auto" adapts the appearance of the turtle corresponding to the value of pensize. - "user" adapts the appearance of the turtle according to the values of stretchfactor and outlinewidth (outline), which are set by shapesize() - "noresize" no adaption of the turtle's appearance takes place. If no argument is given, return current resizemode. resizemode("user") is called by a call of shapesize with arguments. Examples (for a Turtle instance named turtle): >>> turtle.resizemode("noresize") >>> turtle.resizemode() 'noresize' N)�auto�userr��ra)r+r�rV)r�Zrmoder�r�r�ra�s zTPen.resizemodecCs|dkr|jS|j|d�dS)a!Set or return the line thickness. Aliases: pensize | width Argument: width -- positive number Set the line thickness to width or return it. If resizemode is set to "auto" and turtleshape is a polygon, that polygon is drawn with the same line thickness. If no argument is given, current pensize is returned. Example (for a Turtle instance named turtle): >>> turtle.pensize() 1 >>> turtle.pensize(10) # from here on lines of width 10 are drawn N)rY)r-rV)r�rzr�r�r�rYszTPen.pensizecCs|js dS|jdd�dS)z�Pull the pen up -- no drawing when moving. Aliases: penup | pu | up No argument Example (for a Turtle instance named turtle): >>> turtle.penup() NF�rX�r1rVr�r�r�r�rZ/s z TPen.penupcCs|jr dS|jdd�dS)z�Pull the pen down -- drawing when moving. Aliases: pendown | pd | down No argument. Example (for a Turtle instance named turtle): >>> turtle.pendown() NTr;r<r�r�r�r�rX=s zTPen.pendowncCs|jS)aReturn True if pen is down, False if it's up. No argument. Example (for a Turtle instance named turtle): >>> turtle.penup() >>> turtle.isdown() False >>> turtle.pendown() >>> turtle.isdown() True )r1r�r�r�r�rNKs zTPen.isdowncCsjdddddd�}|dkr|jS||kr0||}n*d|krDd krVnntt|��}nd}|j|d �dS)a� Return or set the turtle's speed. Optional argument: speed -- an integer in the range 0..10 or a speedstring (see below) Set the turtle's speed to an integer value in the range 0 .. 10. If no argument is given: return current speed. If input is a number greater than 10 or smaller than 0.5, speed is set to 0. Speedstrings are mapped to speedvalues in the following way: 'fastest' : 0 'fast' : 10 'normal' : 6 'slow' : 3 'slowest' : 1 speeds from 1 to 10 enforce increasingly faster animation of line drawing and turtle turning. Attention: speed = 0 : *no* animation takes place. forward/back makes turtle jump and likewise left/right make the turtle turn instantly. Example (for a Turtle instance named turtle): >>> turtle.speed(3) rr�r�r�r�)Zfastest�fast�normalZslowZslowestNr�g%@)rp)r2r�r�rV)r�rpZspeedsr�r�r�rpZs z TPen.speedcGs�|rht|�}|dkr"|d}}n"|dkr4|\}}n|dkrD|}}|�|�}|�|�}|j||d�n|�|j�|�|j�fSdS)a�Return or set the pencolor and fillcolor. Arguments: Several input formats are allowed. They use 0, 1, 2, or 3 arguments as follows: color() Return the current pencolor and the current fillcolor as a pair of color specification strings as are returned by pencolor and fillcolor. color(colorstring), color((r,g,b)), color(r,g,b) inputs as in pencolor, set both, fillcolor and pencolor, to the given value. color(colorstring1, colorstring2), color((r1,g1,b1), (r2,g2,b2)) equivalent to pencolor(colorstring1) and fillcolor(colorstring2) and analogously, if the other input format is used. If turtleshape is a polygon, outline and interior of that polygon is drawn with the newly set colors. For more info see: pencolor, fillcolor Example (for a Turtle instance named turtle): >>> turtle.color('red', 'green') >>> turtle.color() ('red', 'green') >>> colormode(255) >>> color((40, 80, 120), (160, 200, 240)) >>> color() ('#285078', '#a0c8f0') r�rr�r�)rWrAN)r�r�rVr�r/r0)r�rr&ZpcolorZfcolorr�r�r�r9�s z TPen.colorcGs:|r*|�|�}||jkrdS|j|d�n|�|j�SdS)aZ Return or set the pencolor. Arguments: Four input formats are allowed: - pencolor() Return the current pencolor as color specification string, possibly in hex-number format (see example). May be used as input to another color/pencolor/fillcolor call. - pencolor(colorstring) s is a Tk color specification string, such as "red" or "yellow" - pencolor((r, g, b)) *a tuple* of r, g, and b, which represent, an RGB color, and each of r, g, and b are in the range 0..colormode, where colormode is either 1.0 or 255 - pencolor(r, g, b) r, g, and b represent an RGB color, and each of r, g, and b are in the range 0..colormode If turtleshape is a polygon, the outline of that polygon is drawn with the newly set pencolor. Example (for a Turtle instance named turtle): >>> turtle.pencolor('brown') >>> tup = (0.2, 0.8, 0.55) >>> turtle.pencolor(tup) >>> turtle.pencolor() '#33cc8c' N)rW)r�r/rVr�r�r�r�r�rW�s z TPen.pencolorcGs:|r*|�|�}||jkrdS|j|d�n|�|j�SdS)a] Return or set the fillcolor. Arguments: Four input formats are allowed: - fillcolor() Return the current fillcolor as color specification string, possibly in hex-number format (see example). May be used as input to another color/pencolor/fillcolor call. - fillcolor(colorstring) s is a Tk color specification string, such as "red" or "yellow" - fillcolor((r, g, b)) *a tuple* of r, g, and b, which represent, an RGB color, and each of r, g, and b are in the range 0..colormode, where colormode is either 1.0 or 255 - fillcolor(r, g, b) r, g, and b represent an RGB color, and each of r, g, and b are in the range 0..colormode If turtleshape is a polygon, the interior of that polygon is drawn with the newly set fillcolor. Example (for a Turtle instance named turtle): >>> turtle.fillcolor('violet') >>> col = turtle.pencolor() >>> turtle.fillcolor(col) >>> turtle.fillcolor(0, .5, 0) N)rA)r�r0rVr�r�r�r�r�rA�s zTPen.fillcolorcCs|jdd�dS)z�Makes the turtle visible. Aliases: showturtle | st No argument. Example (for a Turtle instance named turtle): >>> turtle.hideturtle() >>> turtle.showturtle() T��shownN�rVr�r�r�r�ro�szTPen.showturtlecCs|jdd�dS)aYMakes the turtle invisible. Aliases: hideturtle | ht No argument. It's a good idea to do this while you're in the middle of a complicated drawing, because hiding the turtle speeds up the drawing observably. Example (for a Turtle instance named turtle): >>> turtle.hideturtle() Fr?NrAr�r�r�r�rK szTPen.hideturtlecCs|jS)z�Return True if the Turtle is shown, False if it's hidden. No argument. Example (for a Turtle instance named turtle): >>> turtle.hideturtle() >>> print turtle.isvisible(): False )r.r�r�r�r�rO s zTPen.isvisiblecKs�|j|j|j|j|j|j|j|j|j|j |j d�}|s>|s>|St|t�rN|}ni}|� |�i}|D]}||||<qd|jr�|j�d|f�d}d|kr�|j|dkr�d}d|kr�t|dt�r�|�|df�|d<|j|dkr�d}d|k�r|j|dk�rd}|�r|��d|k�r&|d|_d|k�r:|d|_d|k�rN|d|_d|k�r�t|dt��r||�|df�|d<|d|_d |k�r�|d |_d |k�r�|d |_d|k�r�|d}t|ttf��r�||f}||_d|k�r�|d|_d |k�r|d |_ d|k�r|d|_d|k�r.|d|_ d|k�sLd|k�sLd|k�r�|j\} } |j}t�|j �t�|j �}} | | | || || || | ||f|_|��dS)aLReturn or set the pen's attributes. Arguments: pen -- a dictionary with some or all of the below listed keys. **pendict -- one or more keyword-arguments with the below listed keys as keywords. Return or set the pen's attributes in a 'pen-dictionary' with the following key/value pairs: "shown" : True/False "pendown" : True/False "pencolor" : color-string or color-tuple "fillcolor" : color-string or color-tuple "pensize" : positive number "speed" : number in range 0..10 "resizemode" : "auto" or "user" or "noresize" "stretchfactor": (positive number, positive number) "shearfactor": number "outline" : positive number "tilt" : number This dictionary can be used as argument for a subsequent pen()-call to restore the former pen-state. Moreover one or more of these attributes can be provided as keyword-arguments. This can be used to set several pen attributes in one statement. Examples (for a Turtle instance named turtle): >>> turtle.pen(fillcolor="black", pencolor="red", pensize=10) >>> turtle.pen() {'pensize': 10, 'shown': True, 'resizemode': 'auto', 'outline': 1, 'pencolor': 'red', 'pendown': True, 'fillcolor': 'black', 'stretchfactor': (1,1), 'speed': 3, 'shearfactor': 0.0} >>> penstate=turtle.pen() >>> turtle.color("yellow","") >>> turtle.penup() >>> turtle.pen() {'pensize': 10, 'shown': True, 'resizemode': 'auto', 'outline': 1, 'pencolor': 'yellow', 'pendown': False, 'fillcolor': '', 'stretchfactor': (1,1), 'speed': 3, 'shearfactor': 0.0} >>> p.pen(penstate, fillcolor="green") >>> p.pen() {'pensize': 10, 'shown': True, 'resizemode': 'auto', 'outline': 1, 'pencolor': 'red', 'pendown': True, 'fillcolor': 'green', 'stretchfactor': (1,1), 'speed': 3, 'shearfactor': 0.0} )r@rXrWrArYrpra� stretchfactorrnr;rsrVFrXTrWrYrArprarBrnr;r@rsN)r.r1r/r0r-r2r+r3r4r7r5r��dictr,rr�r�r��_newLiner�r�r�r�r�r6rL)r�rVZpendictZ_pd�pZ_p_bufr�ZnewLineZsfZscxZscyZshf�sa�car�r�r�rV s�/� �zTPen.penTcCsdSr(r��r�ZusePosr�r�r�rD� sz TPen._newLineFcCsdSr(r�)r�r�Zforcedr�r�r�rL� szTPen._updatecCsdSr(r�rr�r�r�r�� szTPen._colorcCsdSr(r�rr�r�r�r�� szTPen._colorstr)N)N)N)N)T)TF)r�r�r�r�r�r�r,rarYrZrXrNrpr9rWrArorKrOrVrDrLr�r�rzryr]rUr=rqrMr�r�r�r�r*�s:� &.%$ r*c@s eZdZdZdd�Zdd�ZdS)�_TurtleImagez6Helper class: Datatype to store Turtle attributes cCs||_d|_|�|�dSr�)r�r{� _setshape)r�r�� shapeIndexr�r�r�r�� sz_TurtleImage.__init__cs�|j�||_|jdkr*�j|jkr2nndS|jdkrP�j|jkrXnndS|jdkrp��|j�n |jdkr�|jD]}��|�q��j|j|_|jdkr��|_nF|jdkrԈ��jdj�|_n&|jdkr��fdd��j|jD�|_dS)Nr�rv)rvr�r�r0csg|]}��qSr��r<�r}rJ�r�r�r�r�� sz*_TurtleImage._setshape..) r�rKr{r�rK�_itemr<rwr�)r�rKrJr�rNr�rJ� s("" �z_TurtleImage._setshapeN)r�r�r�r�r�rJr�r�r�r�rI� srIc@s�eZdZdZgZdedededfdd�Zdd �Zd d�Zdd �Z dd�Z dd�Zdd�Zdd�Z dmdd�Zdd�Zdd�Zdd�Zdd�Zdnd d!�Zdod"d#�Zdpd$d%�Zd&d'�Zdqd(d)�Zd*d+�Zdrd,d-�Zd.d/�Zd0d1�Zdsd3d4�Zd5d6�Zd7d8�Zd9d:�Zd;d<�Z dtd=d>�Z!d?d@�Z"dAdB�Z#dCdD�Z$dudFdG�Z%dHdI�Z&dJdK�Z'dLdM�Z(dvdNdO�Z)dPdQ�Z*dwdTdU�Z+dVdW�Z,dXdY�Z-dZd[�Z.d\d]�Z/d^d_�Z0e0Z1dxd`da�Z2dydcdd�Z3dzdedf�Z4d{dgdh�Z5didj�Z6dkdl�Z7eZ8dS)|r zvAnimation part of the RawTurtle. Puts RawTurtle upon a TurtleScreen and provides tools for its animation. Nrkr�r�cCs4t|t�r||_n|t|t�r:|tjkr2tj�|�||_nTt|ttf�r�tjD]}|j |krN||_q�qNt|�|_tj�|j�nt d|��|j}t�||� ��t�|�|j�|�|��|_t||�|_d|_d|_d|_|_||_d|_|��|_|jg|_|jg|_g|_||_t |�|_!|�"�dS)Nzbad canvas argument %sF)#r��_Screenr�rr �screensr@rrr5r�rr�rr*r�rF�drawingLineItemrIr��_poly� _creatingPoly� _fillitem� _fillpathr.�_hidden_from_screen�currentLineItemr�currentLiner�� stampItems�_undobuffersizer�rrL)r�Zcanvasrkr�r�r�r�r�r�r�� s@ zRawTurtle.__init__cCs0t�|�t�|�|��|��|��dS)a�Delete the turtle's drawings and restore its default values. No argument. Delete the turtle's drawings from the screen, re-center the turtle and set variables to the default values. Example (for a Turtle instance named turtle): >>> turtle.position() (0.00,-22.00) >>> turtle.heading() 100.0 >>> turtle.reset() >>> turtle.position() (0.00,0.00) >>> turtle.heading() 0.0 N)rr`r*r,�_clearr�rLr�r�r�r�r`� s zRawTurtle.resetcCs&|dks|dkrd|_n t|�|_dS)a�Set or disable undobuffer. Argument: size -- an integer or None If size is an integer an empty undobuffer of given size is installed. Size gives the maximum number of turtle-actions that can be undone by the undo() function. If size is None, no undobuffer is present. Example (for a Turtle instance named turtle): >>> turtle.setundobuffer(42) Nr)rr�)r��sizer�r�r�rh szRawTurtle.setundobuffercCs|jdkrdS|j��S)z�Return count of entries in the undobuffer. No argument. Example (for a Turtle instance named turtle): >>> while undobufferentries(): ... undo() Nr)rr�r�r�r�r�rx+ s zRawTurtle.undobufferentriescCsld|_|_|jD]}|j�|�q|j��|_g|_|jrJ|j� |j �|jg|_|��|�|j �dS)zDelete all of pen's drawingsN)rUrVr�r�rKrFrXrYr1r@rr7rhr[rIr�r�r�r\8 s zRawTurtle._clearcCs|��|��dS)agDelete the turtle's drawings from the screen. Do not move turtle. No arguments. Delete the turtle's drawings from the screen. Do not move turtle. State and position of the turtle as well as drawings of other turtles are not affected. Examples (for a Turtle instance named turtle): >>> turtle.clear() N)r\rLr�r�r�r�r5F szRawTurtle.clearcCsF|j��|jjdkrdSt|j�dkrB|j�|j|j|j|j�dSr�) r�r�r�r�rYrGrXr/r-r�r�r�r�r�U s �zRawTurtle._update_datacCsx|j}|jdkrdS|jdkrD|��|��|��|�|j�n0|��|jdkrt|��D]}|��q^|��dS)z&Perform a Turtle-data update. rNr�) r�r�r�r�rLrOr�r�r+)r�r�rsr�r�r�rL] s zRawTurtle._updatecCs|j�||�S)amTurns turtle animation on/off and set delay for update drawings. Optional arguments: n -- nonnegative integer delay -- nonnegative integer If n is given, only each n-th regular screen update is really performed. (Can be used to accelerate the drawing of complex graphics.) Second arguments sets delay value (see RawTurtle.delay()) Example (for a Turtle instance named turtle): >>> turtle.tracer(8, 25) >>> dist = 2 >>> for i in range(200): ... turtle.fd(dist) ... turtle.rt(90) ... dist += 2 )r�r*)r��flagrr�r�r�r#o szRawTurtle._tracercCs|j�|�Sr�)r�r�rr�r�r�r�� szRawTurtle._colorcCs|j�|�Sr�)r�r�rr�r�r�r�� szRawTurtle._colorstrc Cs�t|t�r|Sz|\}}}Wn(ttfk rDtdt|��YnX|jjdkrldd�|||fD�\}}}d|kr�dkr�nn.d|kr�dkr�nnd|kr�dks�ntdt|��d|||fS) z,Convert colortriples to hexstrings. r�r�cSsg|]}td|��qSr�r�r�r�r�r�r�� sz!RawTurtle._cc..rr�r�r�)r�r�r�r�r�r�r�)r�rr�r�r�r�r�r��_cc� s Fz RawTurtle._cccs�|j�|�|j�|j}d|_d|_t|�}�|_||_�|_t�|jj�|_�j�|��j |jjj }|dkr��|j_nJ|dkr�� j dj�|j_n*|dkrʇfdd��j |jjjD�|j_��|_|��|S)aCreate and return a clone of the turtle. No argument. Create and return a clone of the turtle with same position, heading and turtle properties. Example (for a Turtle instance named mick): mick = Turtle() joe = mick.clone() Nr�rvr0r�csg|]}��qSr�rLrMrNr�r�r�� sz#RawTurtle.clone..)r�rDr1r�rrIrKr�r@r�r{r<rOrwr�rFrXrL)r�r��q�ttyper�rNr�r8� s. � zRawTurtle.clonecCsB|dkr|jjS||j��kr*td|��|j�|�|��dS)a�Set turtle shape to shape with given name / return current shapename. Optional argument: name -- a string, which is a valid shapename Set turtle shape to shape with given name or, if name is not given, return name of current shape. Shape with name must exist in the TurtleScreen's shape dictionary. Initially there are the following polygon shapes: 'arrow', 'turtle', 'circle', 'square', 'triangle', 'classic'. To learn about how to deal with shapes see Screen-method register_shape. Example (for a Turtle instance named turtle): >>> turtle.shape() 'arrow' >>> turtle.shape("turtle") >>> turtle.shape() 'turtle' NzThere is no shape named %s)r�rKr�rr�rJrL)r�r�r�r�r�rk� szRawTurtle.shapecCs�||kr|krdkr8nn|j\}}|||jfS|dksH|dkrPtd��|dk rt|dkrj||f}q�||f}n|dk r�|jd|f}n|j}|dkr�|j}|jd||d�dS)aOSet/return turtle's stretchfactors/outline. Set resizemode to "user". Optional arguments: stretch_wid : positive number stretch_len : positive number outline : positive number Return or set the pen's attributes x/y-stretchfactors and/or outline. Set resizemode to "user". If and only if resizemode is set to "user", the turtle will be displayed stretched according to its stretchfactors: stretch_wid is stretchfactor perpendicular to orientation stretch_len is stretchfactor in direction of turtles orientation. outline determines the width of the shapes's outline. Examples (for a Turtle instance named turtle): >>> turtle.resizemode("user") >>> turtle.shapesize(5, 5, 12) >>> turtle.shapesize(outline=8) Nrz(stretch_wid/stretch_len must not be zeror9)rarBr;)r3r7r�rV)r�Zstretch_widZstretch_lenr;rBr�r�r�rl� s$" �zRawTurtle.shapesizecCs |dkr|jS|jd|d�dS)a�Set or return the current shearfactor. Optional argument: shear -- number, tangent of the shear angle Shear the turtleshape according to the given shearfactor shear, which is the tangent of the shear angle. DO NOT change the turtle's heading (direction of movement). If shear is not given: return the current shearfactor, i. e. the tangent of the shear angle, by which lines parallel to the heading of the turtle are sheared. Examples (for a Turtle instance named turtle): >>> turtle.shape("circle") >>> turtle.shapesize(5,2) >>> turtle.shearfactor(0.5) >>> turtle.shearfactor() >>> 0.5 Nr9)rarn)r4rV)r�Zshearr�r�r�rnszRawTurtle.shearfactorcCs<||j|j}|tjddtj}|jd|d�dS)aIRotate the turtleshape to point in the specified direction Argument: angle -- number Rotate the turtleshape to point in the direction specified by angle, regardless of its current tilt-angle. DO NOT change the turtle's heading (direction of movement). Examples (for a Turtle instance named turtle): >>> turtle.shape("circle") >>> turtle.shapesize(5,2) >>> turtle.settiltangle(45) >>> stamp() >>> turtle.fd(50) >>> turtle.settiltangle(-45) >>> stamp() >>> turtle.fd(50) r�r�r9)rarsN)r rr�r�rV�r�r�rsr�r�r�rgszRawTurtle.settiltanglecCs>|dkr0|jdtj|j}||j|jS|�|�dS)a�Set or return the current tilt-angle. Optional argument: angle -- number Rotate the turtleshape to point in the direction specified by angle, regardless of its current tilt-angle. DO NOT change the turtle's heading (direction of movement). If angle is not given: return the current tilt-angle, i. e. the angle between the orientation of the turtleshape and the heading of the turtle (its direction of movement). Deprecated since Python 3.1 Examples (for a Turtle instance named turtle): >>> turtle.shape("circle") >>> turtle.shapesize(5,2) >>> turtle.tilt(45) >>> turtle.tiltangle() Nr�)r5r�r�rr rrgrbr�r�r�rt3szRawTurtle.tiltanglecCs|�||��dS)a�Rotate the turtleshape by angle. Argument: angle - a number Rotate the turtleshape by angle from its current tilt-angle, but do NOT change the turtle's heading (direction of movement). Examples (for a Turtle instance named turtle): >>> turtle.shape("circle") >>> turtle.shapesize(5,2) >>> turtle.tilt(30) >>> turtle.fd(50) >>> turtle.tilt(30) >>> turtle.fd(50) N)rgrtrr�r�r�rsMszRawTurtle.tiltcCs6||kr(|kr(|kr(dkr2nn|jS|j\}}}}|dk rL|}|dk rX|}|dk rd|}|dk rp|}||||dkr�td��||||f|_t�||�dtj} t�| �t�| �} }||| |||| || |||| |||f\}} }}||f|_| ||_| |_ |j dd�dS)a�Set or return the current transformation matrix of the turtle shape. Optional arguments: t11, t12, t21, t22 -- numbers. If none of the matrix elements are given, return the transformation matrix. Otherwise set the given elements and transform the turtleshape according to the matrix consisting of first row t11, t12 and second row t21, 22. Modify stretchfactor, shearfactor and tiltangle according to the given matrix. Examples (for a Turtle instance named turtle): >>> turtle.shape("square") >>> turtle.shapesize(4,2) >>> turtle.shearfactor(-0.5) >>> turtle.shapetransform() (4.0, -1.0, -0.0, 2.0) Nrz0Bad shape transform matrix: must not be singularr�r9r:)r6r�r�rr�r�r�r3r4r5rV)r��t11�t12�t21�t22Zm11Zm12Zm21Zm22ZalfarFrGZa11Za12Za21Za22r�r�r�rm`s0,� zRawTurtle.shapetransformcs^|j�|j\��|j\��t��j�j�}dt|�|\��fdd�|D�S)zlComputes transformed polygon shapes from a shape according to current position and heading. r�csFg|]>\}}��|�|�j��|�|�jf�qSr�)r6r7�r}r�r��Ze0Ze1Zp0Zp1r�r�r�r��s�z(RawTurtle._polytrafo..)r�rr rr7r6r)r�r��er�rhr�� _polytrafo�s �zRawTurtle._polytrafocCs2|jj|jj}|jdkr.|�|j|jdk�SdS)a@Return the current shape polygon as tuple of coordinate pairs. No argument. Examples (for a Turtle instance named turtle): >>> turtle.shape("square") >>> turtle.shapetransform(4, -1, 0, 2) >>> turtle.get_shapepoly() ((50, -20), (30, 20), (-50, 20), (-30, -20)) r�r�N)r�r�r�rKr{� _getshapepolyr�)r�rkr�r�r�rG�s zRawTurtle.get_shapepolyFcsx|jdks|r|j\��n>|jdkrNtd|jd�}|dd|f\��n|jdkr\|St��fdd�|D��S) z`Calculate transformed shape polygon according to resizemode and shapetransform. r9r8r�g@rr�c3s2|]*\}}�|�|�|�|fVqdSr�r�rg�rcrdrerfr�r�r��sz*RawTurtle._getshapepoly..)r+r6�maxr-r�)r�r�r�r&r�rlr�rk�s zRawTurtle._getshapepolyc Cs�|j}|j|jj}|j}|jj}|j�r*|jdk�r*|jdk�r*d|_ |j }|dkr�|jdkrfd}n|jdkrx|j}n|j }|�|�|��}|j|j}}|j|||||dd�nt|d kr�|�||j|�nZ|d k�r�t||�D]D\} \} }}|�|�| d��} |j| | |�|�|�|�|j dd�q�nx|j �r6dS|dk�rR|�|dd d �nJ|d k�rv|�||j|jdj �n&|d k�r�|D]} |�| dd d ��q�d|_ dS)zpManages the correct rendering of the turtle with respect to its shape, resizemode, stretch and tilt etc.rFr�r�r�r8T�r#r;rzrCrvr�N�r�r�r�r�r0)r�r�r�rKr{rOr.r�r�rWr�r+r-r7rjrkr0r/rEryr�zipr_)r�r�rkraZtitem�tshaper8�fc�ocrJr�r�r�r�r��sR � � � zRawTurtle._drawturtlec CsT|j}|j|jj}|j}|j}|dkr�|��}|jdkr@d}n|jdkrR|j}n|j }|� |�|��}|j|j }}|j|||||dd�n�|dkr�|�d�}|�||j|�n�|d k�r4g}|D]} |��} |�| �q�t|�}t||�D]D\} \}}}|� |�|d��}|j| ||�|�|�|�|j dd�q�|j�|�|j�d |f�|S)a�Stamp a copy of the turtleshape onto the canvas and return its id. No argument. Stamp a copy of the turtle shape onto the canvas at the current turtle position. Return a stamp_id for that stamp, which can be used to delete it by calling clearstamp(stamp_id). Example (for a Turtle instance named turtle): >>> turtle.color("blue") >>> turtle.stamp() 13 >>> turtle.fd(50) r�r�r�r8Trnrvr�r�rr)r�r�r�rKr{r�r<r+r-r7rjrkr0r/rErwryrr@r�rpr_rZrr�)r�r�rkrarq�stitemr8rrrs�elementrJr�r�r�r�rr�sH � �zRawTurtle.stampcCs�||jkrDt|t�r,|D]}|j�|�qn|j�|�|j�|�d|f}|j}||jkr`dS|j�|�}|j�|�||j kr�|j d|j |_ |j�|j d|j dg�dS)z9does the work for clearstamp() and clearstamps() rrNr�)rZr�r�r�rKr�rr��indexr�r��insert)r��stampidZsubitemrJ�bufrvr�r�r��_clearstamps zRawTurtle._clearstampcCs|�|�|��dS)aDDelete stamp with given stampid Argument: stampid - an integer, must be return value of previous stamp() call. Example (for a Turtle instance named turtle): >>> turtle.color("blue") >>> astamp = turtle.stamp() >>> turtle.fd(50) >>> turtle.clearstamp(astamp) N)rzrL)r�rxr�r�r�r6s zRawTurtle.clearstampcCs^|dkr|jdd�}n&|dkr0|jd|�}n|j|d�}|D]}|�|�qB|��dS)a�Delete all or first/last n of turtle's stamps. Optional argument: n -- an integer If n is None, delete all of pen's stamps, else if n > 0 delete first n stamps else if n < 0 delete last n stamps. Example (for a Turtle instance named turtle): >>> for i in range(8): ... turtle.stamp(); turtle.fd(30) ... >>> turtle.clearstamps(2) >>> turtle.clearstamps(-2) >>> turtle.clearstamps() Nr)rZrzrL)r�r�ZtoDeleterJr�r�r�r7,szRawTurtle.clearstampsc Cs�|j|j|jt|jt�f}|j}d|j|||j|j dd�|� |j�|jdd�ff}|jrh|j� |�|j}|j�rZ|jdk�rZ||}|d|jd|d|jd}dt|ddd|j|j�}|d |} td|�D]R} | dkr�d }nd}|| | |_|j�r2|�|j||jf|j|j|�|��q�|j�rZ|j|jdd |jd�|j�rn|j �|�t|jt��r�|j�|�||_|j�r�|j�|�t|j �dk�r�|��|��dS)z�Move the pen to the point end, thereby drawing a line if pen is down. All other methods for turtle movement depend on this one. �goNr�rr�r�r�皙��?r�TF�r�r�r��r#rz�*)r1r/r-r�rVr�r�rrXrYr�r�rr�r2r�r6r7r�r�rGrRrLr@rTrSr�rD)r�r�go_modesr�Z undo_entry�start�diff�diffsq�nhops�deltar�rCr�r�r�rHsb � ��$$� �zRawTurtle._gotocs|\}}}}|\}}}} |\} }}�|j�t|j|�dkrDtd�| |_||_|ddgkrbd} n|} �j| || |d��fdd�|jD�}|D]}��|�|j� |�q�|}|j �r��jdk�r�||}|d �jd |d�j d }dt|ddd|j |j �}|d |}td|�D]P}|dk�r@d}nd}||||_|�rr��|j||jf|||�|��q,|�r��j|jdd|d�||_|j�r�t|j�d k�r�|j��|jgk�r�d|_d|_| �r|jgk�r�d|_td�n|jdk �r|j��|��dS)z)Reverse a _goto. Used for undo() r�z$undogoto: HALLO-DA-STIMMT-WAS-NICHT!r�r�r~cs&g|]}|�kr��|�dkr|�qS)r�)r{r|�r�r�r�r�r��s�z'RawTurtle._undogoto..r�rr�r�r|r�TFr}NzUnwahrscheinlich in _undogoto!)r�rrr�rXrYrGr�rKr�r2r�r6r7r�r�rRrLrTr�rSr�rV)r��entry�old�newr�ZcoodataZdrawingZpcZpsrBZcLIZcLr�ZusepcZtodeleter~r�r�r�r�r�r�rCr�r�r�� _undogoto}sl $$ � � zRawTurtle._undogotocCs�|jr|j�d||jf�||j9}|j�|�}|jj}|dkr�|jdkr�d|j}dtt |�|�}d||}t |�D]}|j�|�|_|��q|||_|��dS)z&Turns pen clockwise by angle. �rotr�rg@r�N)rr�r r r�r�r�r2r�rr�rL)r�r�Z neworientr�Zanglevelr%r�r�r�r�r�r�s zRawTurtle._rotateTcCsnt|j�dkrD|j�|j|j|j|j�|j��|_|j� |j�n|jj|jdd�g|_|rj|j g|_dS)z�Closes current line item and starts a new one. Remark: if current line became too long, animation performance (via _drawline) slowed down considerably. r�T)rCN)r�rYr�rGrXr/r-rFr�r@rrHr�r�r�rD�s�zRawTurtle._newLinecCst|jt�S)aReturn fillstate (True if filling, False else). No argument. Example (for a Turtle instance named turtle): >>> turtle.begin_fill() >>> if turtle.filling(): ... turtle.pensize(5) ... else: ... turtle.pensize(3) )r�rVr�r�r�r�r�rB�szRawTurtle.fillingcCsX|��s"|j��|_|j�|j�|jg|_|��|j rL|j � d|jf�|��dS)aCalled just before drawing a shape to be filled. No argument. Example (for a Turtle instance named turtle): >>> turtle.color("black", "red") >>> turtle.begin_fill() >>> turtle.circle(60) >>> turtle.end_fill() � beginfillN)rBr�r<rUr�r@rrVrDrr�rLr�r�r�r�r1�s zRawTurtle.begin_fillcCs^|��rZt|j�dkrF|jj|j|j|jd�|jrF|j�d|jf�d|_|_|� �dS)aFill the shape drawn after the call begin_fill(). No argument. Example (for a Turtle instance named turtle): >>> turtle.color("black", "red") >>> turtle.begin_fill() >>> turtle.circle(60) >>> turtle.end_fill() r�r=�dofillN) rBr�rVr�rErUr0rr�rLr�r�r�r�r> s�zRawTurtle.end_fillc Gs8|sNt|ttf�r0|�|�}|jt|jd�}qr|j}|sr|jt|jd�}n$|dkrh|jt|jd�}|�|�}t|jd�r�|j� |j ||�}|j�|�|j r�|j �d|f�n�|��}|j r�|j �dg�d|j _z>|��dkr�|��|��|�|�|�|�|�d�W5|�|�X|j �r4d |j _dS) a�Draw a dot with diameter size, using color. Optional arguments: size -- an integer >= 1 (if given) color -- a colorstring or a numeric color tuple Draw a circular dot with diameter size, using color. If size is not given, the maximum of pensize+4 and 2*pensize is used. Example (for a Turtle instance named turtle): >>> turtle.dot() >>> turtle.fd(50); turtle.dot(20, "blue"); turtle.fd(50) r�N�_dotr<r Tr8rF)r�r�r�r�r-rmr/�hasattrr�r�rr�r@rr�rVr�rarMrXrYrWrC)r�r]r9rJrVr�r�r�r< s: z RawTurtle.dotcCsB|j�|j||||j�\}}|j�|�|jr>|j�d|f�|S)z)Performs the writing for write() �wri)r�rZrr/r�r@rr�)r�rXrYrWrJrr�r�r�rZG s�zRawTurtle._writerP��Arialr�r>cCs`|jr|j�dg�d|j_|�t|�|��|�}|rN|��\}}|�||�|jr\d|j_dS)a�Write text at the current turtle position. Arguments: arg -- info, which is to be written to the TurtleScreen move (optional) -- True/False align (optional) -- one of the strings "left", "center" or right" font (optional) -- a triple (fontname, fontsize, fonttype) Write text - the string representation of arg - at the current turtle position according to align ("left", "center" or right") and with the given font. If move is True, the pen is moved to the bottom-right corner of the text. By default, move is False. Example (for a Turtle instance named turtle): >>> turtle.write('Home = ', True, align="center") >>> turtle.write((0,0), True) r TFN)rr�r�rZr�r�r[re)r��arg�moverYrWrr�r�r�r�r�r{Q szRawTurtle.writecCs|jg|_d|_dS)aStart recording the vertices of a polygon. No argument. Start recording the vertices of a polygon. Current turtle position is first point of polygon. Example (for a Turtle instance named turtle): >>> turtle.begin_poly() TN)rrSrTr�r�r�r�r2n s zRawTurtle.begin_polycCs d|_dS)a7Stop recording the vertices of a polygon. No argument. Stop recording the vertices of a polygon. Current turtle position is last point of polygon. This will be connected with the first point. Example (for a Turtle instance named turtle): >>> turtle.end_poly() FN)rTr�r�r�r�r?| szRawTurtle.end_polycCs|jdk rt|j�SdS)z�Return the lastly recorded polygon. No argument. Example (for a Turtle instance named turtle): >>> p = turtle.get_poly() >>> turtle.register_shape("myFavouriteShape", p) N)rSr�r�r�r�r�rD� s zRawTurtle.get_polycCs|jS)a�Return the TurtleScreen object, the turtle is drawing on. No argument. Return the TurtleScreen object, the turtle is drawing on. So TurtleScreen-methods can be called for that object. Example (for a Turtle instance named turtle): >>> ts = turtle.getscreen() >>> ts >>> ts.bgcolor("pink") rNr�r�r�r�rF� szRawTurtle.getscreencCs|S)aUReturn the Turtleobject itself. No argument. Only reasonable use: as a function to return the 'anonymous turtle': Example: >>> pet = getturtle() >>> pet.fd(50) >>> pet >>> turtles() [] r�r�r�r�r�rH� szRawTurtle.getturtlecCs|j�|�S)zDSet delay value which determines speed of turtle animation. )r�rrNr�r�r�rO� szRawTurtle._delayr�cCs"|j�|jj|||�|��dS)a�Bind fun to mouse-click event on this turtle on canvas. Arguments: fun -- a function with two arguments, to which will be assigned the coordinates of the clicked point on the canvas. btn -- number of the mouse-button defaults to 1 (left mouse button). add -- True or False. If True, new binding will be added, otherwise it will replace a former binding. Example for the anonymous turtle, i. e. the procedural way: >>> def turn(x, y): ... left(360) ... >>> onclick(turn) # Now clicking into the turtle will turn it. >>> onclick(None) # event-binding will be removed N)r�rgr�rOrLr�r�r�r�rR� szRawTurtle.onclickcCs"|j�|jj|||�|��dS)a�Bind fun to mouse-button-release event on this turtle on canvas. Arguments: fun -- a function with two arguments, to which will be assigned the coordinates of the clicked point on the canvas. btn -- number of the mouse-button defaults to 1 (left mouse button). Example (for a MyTurtle instance named joe): >>> class MyTurtle(Turtle): ... def glow(self,x,y): ... self.fillcolor("red") ... def unglow(self,x,y): ... self.fillcolor("") ... >>> joe = MyTurtle() >>> joe.onclick(joe.glow) >>> joe.onrelease(joe.unglow) Clicking on joe turns fillcolor red, unclicking turns it to transparent. N)r�rhr�rOrLr�r�r�r�rT� szRawTurtle.onreleasecCs|j�|jj|||�dS)a�Bind fun to mouse-move event on this turtle on canvas. Arguments: fun -- a function with two arguments, to which will be assigned the coordinates of the clicked point on the canvas. btn -- number of the mouse-button defaults to 1 (left mouse button). Every sequence of mouse-move-events on a turtle is preceded by a mouse-click event on that turtle. Example (for a Turtle instance named turtle): >>> turtle.ondrag(turtle.goto) Subsequently clicking and dragging a Turtle will move it across the screen thereby producing handdrawings (if pen is down). N)r�rir�rOr�r�r�r�rS� szRawTurtle.ondragcCs,|jdkrdS|dkr@|\}}|�|||j�|j��}n�|dkr\|d}|�|�n�|dkrp|�|�n�|dkr�|d}|j�|�|j� |�n�|dkr�|d}|jj |dd d d �nh|dk�r|d}d|_|_||jk�r(|j�|�|j� |�n$|dk�r(t �||d�|j��dS) z2Does the main part of the work for undo() Nr�rrrr{)r�r<r�ror�r:r�rV)rrr r�r6r�r�rKr�r�rErUrVr*rV)r��actionr�r�ZdegPAU�dummyrtrJr�r�r��_undos< � zRawTurtle._undocCsl|jdkrdS|j��}|d}|dd�}|dkr\|rh|��}|�|d|dd��q4n|�||�dS)a�undo (repeatedly) the last turtle action. No argument. undo (repeatedly) the last turtle action. Number of available undo actions is determined by the size of the undobuffer. Example (for a Turtle instance named turtle): >>> for i in range(4): ... turtle.fd(50); turtle.lt(80) ... >>> for i in range(8): ... turtle.undo() ... Nrr�r )rr�r�)r�rJr�r�r�r�r�rw&s zRawTurtle.undo)NN)N)NNN)N)N)NNNN)F)N)T)N)FrPr�)N)r�N)r�N)r�N)9r�r�r�r�rQr�r�r`rhrxr\r5r�rLr#r�r�r_r8rkrlrnrgrtrsrmrjrGrkr�rrrzr6r7rr�rrDrBr1r>r<rZr{r2r?rDrFrHrErOrRrTrSr�rwrvr�r�r�r�r � sr� ( ( ( ( (- 5A 0 cCstjdkrt�t_tjS)z�Return the singleton screen object. If none exists at the moment, create a new one and return it, else return the existing one.N)r�_screenrPr�r�r�r�r Is c@sfeZdZdZdZedZdd�Zededededfd d �Zdd�Z d d�Z dd�Zdd�ZdS)rPNr)cCs�tjdkr4t�t_|_|j�tj�|j�|j�tjdkr�td}td}td}td}td}td}|j� ||||�|j� �t_t�|tj�|� ||||�dS)Nrzr�r�r�r�r�)rP�_rootr r)�_titler+�_destroyrr�r%r&rr�r&)r�rzr�r�r�r�r�r�r�r�r�Ws z_Screen.__init__rzr�r�r�cCs�t|jd�sdS|j��}|j��}t|t�rNd|krBdkrNnn||}|dkrb||d}t|t�r�d|kr�dkr�nn||}|dkr�||d}|j�||||�|��dS)a Set the size and position of the main window. Arguments: width: as integer a size in pixels, as float a fraction of the screen. Default is 50% of screen. height: as integer the height in pixels, as float a fraction of the screen. Default is 75% of screen. startx: if positive, starting position in pixels from the left edge of the screen, if negative from the right edge Default, startx=None is to center window horizontally. starty: if positive, starting position in pixels from the top edge of the screen, if negative from the bottom edge Default, starty=None is to center window vertically. Examples (for a Screen instance named screen): >>> screen.setup (width=200, height=200, startx=0, starty=0) sets window to 200x200 pixels, in upper left of screen >>> screen.setup(width=.75, height=0.5, startx=None, starty=None) sets window to 75% of screen by 50% of screen and centers r)Nrr�r�)r�r�r,r-r�r�r)r,)r�rzr�r'r(rS�shr�r�r�r&ms ""z _Screen.setupcCs tjdk rtj�|�|t_dS)aqSet title of turtle-window Argument: titlestring -- a string, to appear in the titlebar of the turtle graphics window. This is a method of Screen-class. Not available for TurtleScreen- objects. 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