海龟碰到线条就停止了(也是为了bloodfill漫水填充而编的测试程序)

#海龟碰到线条就停止了(也是为了bloodfill漫水填充而编的测试程序)
import turtle

cv = turtle.getcanvas()
turtle.shape('circle')
turtle.shapesize(0.2)
 
turtle.circle(100)

turtle.penup()
turtle.sety(50)
running = True
while running:
    turtle.fd(1)
    all_items = cv.find_all()
    for item in all_items:
        zt = cv.itemconfig(item)['state'][-1]
        if zt=='hidden':continue
        selfitem = turtle.getturtle().turtle._item
        x1,y1,x2,y2 = cv.bbox(selfitem)
        ss = cv.find_overlapping(x1,y1,x2,y2)
        ss = set(ss)
        ss.remove(selfitem)
        if ss:running = False
        
x,y = 100,100
cv.create_rectangle(x,y,x,y,outline="red")
x,y = 200,100
cv.create_line(x,y,x+1,y+1,width=1,fill="red")