Graphics.X11.Turtle

meta data

xturtleVersion :: (Int, String)

types and classes

data Field

data Turtle

class ColorClass a

Instances

ColorClass String

(Integral r, Integral g, Integral b) => ColorClass (r, g, b)

beginings and endings

openField :: IO Field

closeField :: Field -> IO ()

waitField :: Field -> IO ()

newTurtle :: Field -> IO Turtle

killTurtle :: Turtle -> IO ()

move turtle

forward, backward :: Turtle -> Double -> IO ()

goto :: Turtle -> Double -> Double -> IO ()

setx, sety :: Turtle -> Double -> IO ()

left, setheading, right :: Turtle -> Double -> IO ()

circle :: Turtle -> Double -> IO ()

write :: Turtle -> String -> Double -> String -> IO ()

bgcolor :: ColorClass c => Turtle -> c -> IO ()

home :: Turtle -> IO ()

clear :: Turtle -> IO ()

undo :: Turtle -> IO ()

sleep :: Turtle -> Int -> IO ()

flushoff, flushon :: Turtle -> IO ()

flush :: Turtle -> IO ()

change turtle state

shape :: Turtle -> String -> IO ()

shapesize :: Turtle -> Double -> Double -> IO ()

speed :: Turtle -> String -> IO ()

hideturtle, showturtle :: Turtle -> IO ()

penup, pendown :: Turtle -> IO ()

beginfill, endfill :: Turtle -> IO ()

pencolor :: ColorClass c => Turtle -> c -> IO ()

pensize :: Turtle -> Double -> IO ()

degrees :: Turtle -> Double -> IO ()

radians :: Turtle -> IO ()

turtle information

position :: Turtle -> IO (Double, Double)

xcor, ycor :: Turtle -> IO Double

heading :: Turtle -> IO Double

towards :: Turtle -> Double -> Double -> IO Double

distance :: Turtle -> Double -> Double -> IO Double

isdown, isvisible :: Turtle -> IO Bool

windowWidth, windowHeight :: Turtle -> IO Double

on events

onclick, onrelease :: Field -> (Int -> Double -> Double -> IO Bool) -> IO ()

ondrag :: Field -> (Double -> Double -> IO ()) -> IO ()

onkeypress :: Field -> (Char -> IO Bool) -> IO ()

save and load

getInputs :: Turtle -> IO [TurtleInput]

sendInputs :: Turtle -> [TurtleInput] -> IO ()

getSVG :: Turtle -> IO [SVG]