59 lines
1.3 KiB
Python
59 lines
1.3 KiB
Python
# 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()
|