Write a function that draws a sun on the picture of a beach at different places on the picture in successive frames. The goal is to make it look like the sun is moving across the sky through the day.

Question

Note: The sun tends to move in an arc across the sky from left to top center to right, depending on one’s perspective in the world. Therefore, making use of sin and cos for arcing movement makes the most sense.

Answer 1

```
def makeSunCrossSky(directory):
for num in range (1 ,30): #29 frames
canvas = makePicture(getMediaPath("beach.jpg"))
# Let's have the sun moving on an arc
sunX = 100+ num*4
sunY = 100+int(-20* cos(num/8.0))
addOvalFilled(canvas ,sunX ,sunY ,50,50,yellow)
# Now , write out the frame
# Have to deal with single digit vs. double digit
numStr=str(num)
if num < 10:
writePictureTo ( canvas , directory +"//frame0"+ numStr +".jpg")
elif num >= 10:
writePictureTo ( canvas , directory +"//frame"+ numStr +".jpg")
movie = makeMovieFromInitialFile(directory+"//frame00.jpg");
return movie
```