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| # colormixer
|
| from turtle import Screen, Turtle, mainloop
|
| 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()
|
|
