How do I move the turtle in LOGO? [closed]

Question

How do I move the turtle in LOGO?

Anyway

Don't forget PENUP and PENDOWN. Otherwise you'll move the turtle, but not see his track. Also change the color of the pen, and the background color of the paper. – Heteronomy

You go here... sonic.net/~nbs/webturtle/webturtle.cgi – Dorothydorp

Answer 1

// MOVE FORWARD
FD 75
// TURN RIGHT
RT 54
// TURN LEFT
LT 21
// MOVE BACKWARD
BK 17

Check out some other turtle commands found here...

---

Turtle Commands

• BACK ## [BK] - Move turtle back

• BACKGROUND ## [BG] - Set Background color (0-15)

  • 0 - Black
  • 1 - White
  • 2 - Red
  • 3 - Cyan
  • 4 - Purple
  • 5 - Green
  • 6 - Blue
  • 7 - Yellow
  • 8 - Orange
  • 9 - Brown
  • 10 - Light Red
  • 11 - Grey 1
  • 12 - Grey 2
  • 13 - Light Green
  • 14 - Light Blue
  • 15 - Grey 3

• CLEARSCREEN [CS] - Clear Screen without moving turtle

• DRAW - Clear Screen and take turtle home
• EACH - Tell several sprites, whose numbers are in a list, to accept commands in a second list, e.g. EACH [1 2] [SQUARE 10]
• FORWARD ## [FD] - Move turtle forward
• FULLSCREEN - Full graphics screen (same as pressing F5)
• HEADING - Output turtle heading as a number (0-359)
• HIDETURTLE [HT] - Make turtle invisible
• HOME - Move turtle to center of screen pointing up
• LEFT [LT] - Turn turtle left
• NODRAW [ND] - Enter text mode with clear screen
• NOWRAP - Prevent drawings from wrapping around screen
• PENCOLOR [PC] - Change pen color
• PENDOWN [PD] - Turtle leaves trail
• PENUP [PU] - Turtle ceases to leave trail
• RIGHT ## [RT] - Turn turtle right
• SETHEADING [SETH] - Set turtle heading, e.g. SETH 180
• SETSHAPE - Set the current sprite shape (0-7)
• SETX Move the turtle to the specified x co-ordinates e.g. SETX 50
• SETXY Move the turtle to the specified x, y co-ordinates Eg. SETXY 50 50
• SETY Move the turtle to the specified y co-ordinate, e.g. SETY 50
• SHAPE - Output number of current sprite's shape
• SHOWTURTLE [ST] - Make turtle visible
• SPLITSCREEN - Mixed graphics and text screen (same as pressing F3)
• STAMPCHAR - Make the turtle stamp a character at the current location, e.g. STAMPCHAR "A
• TELL - Tell designated sprite to receive commands, e.g. TELL 2
• TEXTSCREEN - Use whole screen for text (same as pressing F1)
• TOWARDS - Output heading for turtle to face an X,Y coordinate, e.g. TOWARDS 0 0
• WRAP - Make turtle drawings wrap around the screen
• XCOR - Output current x co-ordinate of turtle
• YCOR - Output current y co-ordinate of turtle
• ASPECT - Set verticle screen scale factor, default is 0.76

---

Samples taken directly from website: http://gaza.freehosting.net/logo/index.html

Flapper

Answer 2

Logo is all about moving the turtle... you give it commands like this:

Forward 100
Right 45

You can do stuff like repeating commands too:

Repeat 8 [Forward 100 Right 45]  ; Draw an octagon

(What do I win? 8-)

Knock

Answer 3

Whoa! Is it still around?

fd 300 // Forward
rt 90  // Right 90°
fd 300 
lt 90  // Left 90°

That used to work.

Rishi

Answer 4

I've seen a few LOGO implementations where you can use localized commands like:

• NAPRZOD (FORWARD),
• LEWO (LEFT),
• PRAWO (RIGTH)

or even NAPRZÓD (with Polish letter Ó).

LOGO is nice language to teach kids programming in their native spoken language.

Kowloon

Answer 5

By issuing commands in the correct syntax. E.G.:

forward 100

There is only one necessary command to move the turtle. It is forward which has the mnemonic fd. When working with a robot (real) turtle as opposed to a graphics based (virtual) one, you might find that the turning commands left and right [lt & rt] move the turtle a little, accidentally.

Most implementations also allow the command backwards [bk].

When the turtle moves, it may draw a line as it goes depending on whether the pen is up or down at the time, and whether the current pen color is different from the background color.

A graphics based (virtual) turtle can also jump around the screen with setx, sety, and setxy

Postprandial

Answer 6

try: bk(back), fd(forward), ld(left turn in degrees), rt(right turn).

Musso