Question
Python Animate two faces moving in different directions at the same time in a program move2Faces.py. You cannot use the moveAllOnLine function. You will have
Python
- Animate two faces moving in different directions at the same time in a program move2Faces.py. You cannot use the moveAllOnLine function. You will have to make a variation of your own. You can use the moveAll function separately for each face. Hint: imagine the old way of making an animated cartoon. If each face was on a separate piece of paper, and you wanted to animate them moving together, you would place them separately, record one frame, move them each a bit toward each other, record another frame, move each another bit toward each other, record another frame, .... In our animations record a frame is replaced by a short sleep to make the position visible to the user. Make a loop to incorporate the repetition of the moves.
Code for the faces:
from graphics import * import time
def moveAll(shapeList, dx, dy): ''' Move all shapes in shapeList by (dx, dy).''' for shape in shapeList: shape.move(dx, dy)
def moveAllOnLine(shapeList, dx, dy, repetitions, delay): '''Animate the shapes in shapeList along a line. Move by (dx, dy) each time. Repeat the specified number of repetitions. Have the specified delay (in seconds) after each repeat. ''' for i in range(repetitions): moveAll(shapeList, dx, dy) time.sleep(delay)
def makeFace(center, win): '''display face centered at center in window win. Return a list of the shapes in the face. ''' head = Circle(center, 25) head.setFill("yellow") head.draw(win)
eye1Center = center.clone() # face positions are relative to the center eye1Center.move(-10, 5) # locate further points in relation to others eye1 = Circle(eye1Center, 5) eye1.setFill('blue') eye1.draw(win)
eye2End1 = eye1Center.clone() eye2End1.move(15, 0) eye2End2 = eye2End1.clone() eye2End2.move(10, 0) eye2 = Line(eye2End1, eye2End2) eye2.setWidth(3) eye2.draw(win)
mouthCorner1 = center.clone() mouthCorner1.move(-10, -10) mouthCorner2 = mouthCorner1.clone() mouthCorner2.move(20, -5) mouth = Oval(mouthCorner1, mouthCorner2) mouth.setFill("red") mouth.draw(win)
return [head, eye1, eye2, mouth]
def main(): win = GraphWin('Back and Forth', 300, 300) win.yUp() # make right side up coordinates!
rect = Rectangle(Point(200, 90), Point(220, 100)) rect.setFill("blue") rect.draw(win)
faceList = makeFace(Point(40, 100), win) faceList2 = makeFace(Point(150,125), win)
stepsAcross = 46 dx = 5 dy = 3 wait = .05 for i in range(3): moveAllOnLine(faceList, dx, 0, stepsAcross, wait) moveAllOnLine(faceList, -dx, dy, stepsAcross//2, wait) moveAllOnLine(faceList, -dx, -dy, stepsAcross//2, wait)
win.promptClose(win.getWidth()/2, 20)
main()
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