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The Turtle Palette (green)
examples (1)
descriptions (1)
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Clean |
clear the screen and reset the turtle to center, pointed up (pen down, bright red)
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Forward (number) |
move turtle forward
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Back (number) |
move turtle backward
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Left (angle in degrees) |
turn turtle counterclockwise
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Right (angle in degrees) |
turn turtle clockwise
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Arc (angle in degrees,radius) |
move turtle along an arc
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Setyx (xcor, ycor) |
move turtle to position (xcor, ycor) [(0, 0) is in the center of the screen.]
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Seth (heading) |
set the heading of the turtle [0 is towards the top of the screen.]
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Show (media) |
draw text, images, or play sounds
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Set scale (media) |
Set the scale of images
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Container |
Load a media object from the Journal (plugs into the Show block)
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X coordinate |
holds current x-coordinate value of the turtle (can be used in place of a number block)
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Y coordinate |
holds current y-coordinate value of the turtle (can be used in place of a number block)
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Heading |
holds current heading value of the turtle (can be used in place of a number block)
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Scale |
holds current scale value
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Turtle state values (can plug into a parameter):
- X, Y – Zeros for each are at center screen. Negative values are left and down; positive values are right and up.
- Heading – Zero is pointed up. Heading is in degrees clockwise.
- Angles are degrees from 0 to 360 (for larger values and smaller values all multiples of 360 are subtracted or added to get the value into the range 0..360).
- Examples: 90 means a right angle (90 degrees), clockwise; –30 means a 30-degree angle, counterclockwise