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author | Alexander Belopolsky <alexander.belopolsky@gmail.com> | 2010-11-01 17:39:37 (GMT) |
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committer | Alexander Belopolsky <alexander.belopolsky@gmail.com> | 2010-11-01 17:39:37 (GMT) |
commit | ea13d9d86bf62c6f1d2ba0cc7cc7f9a7c0683e47 (patch) | |
tree | c2184842b163da5df6fd30c671c62083c73cb100 /Lib/turtledemo/colormixer.py | |
parent | 8291af2354d194fd60079380367f4ecb0eba5397 (diff) | |
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Issue #10199: Moved Demo/turtle under Lib/
Diffstat (limited to 'Lib/turtledemo/colormixer.py')
-rw-r--r-- | Lib/turtledemo/colormixer.py | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Lib/turtledemo/colormixer.py b/Lib/turtledemo/colormixer.py new file mode 100644 index 0000000..f5d308d --- /dev/null +++ b/Lib/turtledemo/colormixer.py @@ -0,0 +1,60 @@ +# colormixer + +from turtle import Screen, Turtle, mainloop +import sys +sys.setrecursionlimit(20000) # overcomes, for now, an instability of Python 3.0 + +class ColorTurtle(Turtle): + + def __init__(self, x, y): + Turtle.__init__(self) + self.shape("turtle") + self.resizemode("user") + self.shapesize(3,3,5) + self.pensize(10) + self._color = [0,0,0] + self.x = x + self._color[x] = y + self.color(self._color) + self.speed(0) + self.left(90) + self.pu() + self.goto(x,0) + self.pd() + self.sety(1) + self.pu() + self.sety(y) + self.pencolor("gray25") + self.ondrag(self.shift) + + def shift(self, x, y): + self.sety(max(0,min(y,1))) + self._color[self.x] = self.ycor() + self.fillcolor(self._color) + setbgcolor() + +def setbgcolor(): + screen.bgcolor(red.ycor(), green.ycor(), blue.ycor()) + +def main(): + global screen, red, green, blue + screen = Screen() + screen.delay(0) + screen.setworldcoordinates(-1, -0.3, 3, 1.3) + + red = ColorTurtle(0, .5) + green = ColorTurtle(1, .5) + blue = ColorTurtle(2, .5) + setbgcolor() + + writer = Turtle() + writer.ht() + writer.pu() + writer.goto(1,1.15) + writer.write("DRAG!",align="center",font=("Arial",30,("bold","italic"))) + return "EVENTLOOP" + +if __name__ == "__main__": + msg = main() + print(msg) + mainloop() |