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Mouvement de la Tortue
àgauche X , gauche X
Rotate the turtle left x degrees
Example:
àgauche 90
Explained in lesson:
àdroite X , droite X
Rotate the turtle right x degrees
Example:
àdroite 90
Explained in lesson:
accueil
Moves the turtle to center, pointing upwards
Example:
accueil
Explained in lesson:
définirx NUM_x
Move turtle to the specified X location
Example:
définirx 100
Explained in lesson:
définiry NUM_y
Move turtle to the specified Y location
Example:
définiry 200
Explained in lesson:
définirxy NUM_X NUM_Y , set pos [ NUM_X NUM_Y ]
Move turtle to the specified location
Example:
définirxy 100 100
Explained in lesson:
définircap , définirh
Rotate the turtle to the specified heading
Example:
sh 145
Explained in lesson:
arc ANGLE RADIUS
Will create an arc distance RADIUS covering ANGLE angle
Example:
ARC 360 5
Explained in lesson:
ellipse WIDTH HEIGHT
Will create an ellipse with Width and height
Example:
ellipse 80 90
Requêtes de Mouvement de la Tortue
position
Outputs the current turtle position as [ x y ], x or y respectively
Example:
position
Explained in lesson:
xcor
Outputs the current turtle position as [ x y ], x or y respectively
Example:
xcor
Explained in lesson:
ycor
Outputs the current turtle position as [ x y ], x or y respectively
Example:
ycor
Explained in lesson:
vers
Outputs the heading towards the specified [ x y ] coordinates
Example:
vers
Explained in lesson:
Contrôle de la Tortue et de la Fenêtre
montrertortue , montrertortue
Show the turtle
Example:
cachertortue attendre montrertortue
Explained in lesson:
cachertortue , cachertortue
Hide the turtle
Example:
cachertortue
Explained in lesson:
borrar , effacerécran
Will clear the screen
Example:
av 60 borrar
Explained in lesson:
effacerécran , effacerécran
Will clear the screen and return the turtle home
Example:
effacerécran
Explained in lesson:
remplir
Does a paint bucket flood fill at the turtle's position
Example:
effacerécran répéter 4 [ av 50 droite 90 ] leverstylo définirxy 50 50 abaissersstylo remplir
Explained in lesson:
rempli fillcolor [ statements ... ]
Execute statements without drawing but keeping track of turtle movements. When complete, fill the region traced by the turtle with fillcolor and outline the region with the current pen style
Example:
rempli "blue [repeat 4 [fd 100 droite 90]]
Explained in lesson:
étiquette expr
Draw a word (same logic as print) on the graphics display at the turtle location
Example:
étiquette "logo cachertortue
Explained in lesson:
définirhauteuretiquette expr
Set the height for text drawn by label, in pixels
Example:
définirhauteuretiquette 100 étiquette "Logo cachertortue
Explained in lesson:
envolver
If the turtle moves off the edge of the screen it will continue on the other side
Example:
effacerécran envolver av 800
Explained in lesson:
ventana
The turtle can move past the edges of the screen, unbounded.
Example:
effacerécran ventana av 600 droite 90 av 100 droite 90 av 70
Explained in lesson:
valla
If the turtle attempts to move past the edge of the screen it will stop.
Example:
effacerécran valla av 600 droite 90 av 100 droite 90 av 70
Explained in lesson:
Requêtes sur la Tortue et la Fenêtre
shownp , shown?
Outputs 1 if the turtle is shown, 0 if the turtle is hidden
Example:
show shown?
Explained in lesson:
labelsize
Outputs the height of text drawn by label, in pixels
Example:
show labelsize
Explained in lesson:
Contrôle du Stylo et de l'Arrière-plan
leverstylo , leverstylo
Turtle stops leaving a trail
Example:
leverstylo
Explained in lesson:
abaissersstylo , abaissersstylo
The turtle will leave a trail
Example:
abaissersstylo
Explained in lesson:
définircouleur X , définircouleurstylo X
| 0: noir | 1: bleu | 2: citron vert |
| 3: cyan | 4: rouge | 5: magenta |
| 6: jaune | 7: blanc | 8: marron |
| 9: tan | 10: vert | 11: aigue-marine |
| 12: saumon | 13: violet | 14: orange |
| 15: gris |
Example:
définircouleur 1
Explained in lesson:
définircouleur [r,g,b] , définircouleurstylo [r,g,b]
Will set the turtle color accroding to the amount of red , green and blue
Example:
définircouleur [50 100 50]
définirlargeur X , définirtaillecrayon X
Will set the pen width to X
Example:
définirlargeur 4 av 50
Explained in lesson:
cambiarforma X or STR , cf X or STR
Will change the turtle to another shape accordin to the following 0 = "turtle", 1 = "cat", 2 = "fish", 3 = "dog", 4 = "horse", 5 = "tiger", 6 = "crab", 7 = "snail"
Example:
cf 1 or cf "dog
Explained in lesson:
Requêtes sur le Stylo
pendownp , pendown?
Outputs 1 if the pen is down, 0 otherwise
Example:
show pendown?
Explained in lesson:
pencolor , pc
Outputs the current pen color. This will be a CSS color string, not necessarily the value passed in.
Example:
show pencolor
Explained in lesson:
pensize
Outputs a two element list with the pen width and height (usually the same).
Example:
show pensize
Explained in lesson:
Définition de Procédures
à PROCNAME inputs ... statements ... end
Define a new named procedure with optional inputs
Example:
à TURTLE répéter 4 [ av 50 droite 90] fin
Explained in lesson:
define PROCNAME inputs ... statements ... end
Define a new named procedure with optional inputs
Example:
define "star [[n][repeat 5 [fd :n droite 144]]]
def PROCNAME
Outputs the definition of a named procedure as a string
Example:
show def "star
Définition de Variables
faire varname expr
Update a variable or define a new global variable. The variable name must be quoted
Example:
faire "foo 5
Explained in lesson:
name expr varname
Like make but with the inputs reversed
Example:
name 5 "myvar
Explained in lesson:
localmake varname expr
Define a variable in the local scope (shortcut for local then make
Example:
localmake "myvar 5
Explained in lesson:
: VARNAME , thing VARNAME
Outputs the value of variable. :foo is a shortcut for thing "foo
Example:
show thing "myvar
Explained in lesson:
Structures de Contrôle
répéter X [ statements ... ]
Repeat statements X times
Example:
répéter 4 [ av 50 droite 90]
Explained in lesson:
pour controllist [ statements ...]
Typical for loop. The controllist specifies three or four members: the local varname, start value, limit value, and optional step size
Example:
pour [i 1 10 1] [print :i]
Explained in lesson:
nombrederépétitions
Outputs the current iteration number of the current repeat or forever
Example:
répéter 4 [ nombrederépétitions ]
si expr [statement]
Execute statment if expressoin is true
Example:
si 2>1 [print "hello]
sino expr [statementTrue] [statementFalse]
Execute StatementTrue if tru else execute statementFalse
Example:
sino 0>1 [print "true] [print "false]
test expr
Test the specified expression save the result in the local scope for the subsequent use by iftrue iffalse
Example:
test 3>4 siverdad [print "true] sifalso [print "false]
siverdad [statements]
Example:
test 3>4 siverdad [print "true] sifalso [print "false]
sifalso [statements]]
Example:
test 3>4 siverdad [print "true] sifalso [print "false]
attendre X
Will cause the turtle to wait X ( 60ths of seconds ) time before executing the command
Example:
répéter 4 [ attendre 10 av 50]
Explained in lesson:
adios
Ternimante the program
Example:
adios
dotimes [varname times] [ statements ...]
Run the statements the specified number of times. The variable varname is set to the current iteration number.
Example:
dotimes [ i 5 ] [ show :i * :i ]
do.while [ statements ...] expr
Runs the specified statements at least once, and repeats while the expression is non-zero (true).
Example:
do.while [ faire "a aléatoire 10 show :a ] :a < 8
while [expr] [ statements ...]
Runs the specified statements only while the expression remains non-zero (true).
Example:
while (random 2) = 0 [ show "zero ] show "one
do.until [ statements ...] [expr]
Runs the specified statements at least once, and repeats while the expression is zero (false).
Example:
do.until [ faire "a aléatoire 10 show :a ] :a < 8
until [expr] [ statements ...]
Runs the specified statements only while the expression remains zero (false).
Example:
until (random 2) = 0 [ show "one ] show "zero
Listes
liste thing1 thing2 ...
Create a new list from the inputs
Example:
faire "mylist (list "turtle "academy)
Explained in lesson:
premier listname
Outputs the first item from the list
Example:
imprimer premier :mylist
Explained in lesson:
maisd’abord listname
Outputs all the items of listname except for the first item
Example:
imprimer maisd’abord :mylist
Explained in lesson:
dernier listname
Outputs the last item from the list
Example:
imprimer dernier :mylist
Explained in lesson:
maisdernier listname
Outputs all the items of listname except for the last item
Example:
imprimer maisdernier :mylist
Explained in lesson:
élément index listname
Outputs the indexlist item of the list or array
Example:
imprimer élément 1 :mylist
Explained in lesson:
choisir index listname
Outputs one item from a list, at random
Example:
imprimer choisir :mylist
Explained in lesson:
Mathématiques
moins X Y
return the distance between x and y x-y
Example:
imprimer moins 8 2
aléatoire X
Will choose a random number between 0 - (X-1)'
Example:
effacerécran imprimer somme aléatoire 10 3
Explained in lesson:
modulo expr expr
Outputs the remainder (modulus). For remainder and % the result has the same sign as the first input; for modulo the result has the same sign as a the second input.
Example:
effacerécran imprimer modulo 10 3
power expr expr
3 power 4 = 81
Example:
show power 3 4
Receivers
leerpalabra
Prompt the user for a line of input. The result (including spaces) is the single word output.
Example:
faire "name (readword [What is your name?]) show :name
Explained in lesson:
leerlista
Prompt the user for a line of input. The result is a list of words.
Example:
faire "colors (readlist [Type some colors:]) show :colors
Prédicats
word thing , word? thing
Returns true (1) or false (0) if thing is a word
Example:
show word "hello
listp thing , list? thing
Returns true (1) or false (0) if thing is a list
Example:
imprimer listp [1 2 3]
arrayp thing , array? thing
Returns true (1) or false (0) if thing is an array
Example:
imprimer arrayp array 2
numberp thing , number? thing
Returns true (1) or false (0) if thing is a number
Example:
imprimer numberp 25
emptyp thing , empty? thing
Test if thing is an empty list or empty string.
Example:
imprimer emptyp []
equalp expr expr , equal? expr expr
Test if xper expr are equal.
Example:
equalp "no "yes
notequalp expr expr , notequal? expr expr
Test if xper expr are not equal.
Example:
notequalp "no "yes
beforep thing1 , before? thing1
Test string collation order.
Example:
imprimer before? "bye "hi
substringp thing1 thing2 , substring? thing1 thing2
Test if thing1 is a substring of thing2.
Example:
imprimer substringp "hello "helloworld