(You may need to click once on the application above to get your browser to recognize the applet)

The application functions as follows:

• UP arrow makes saucer go up
• LEFT arrow makes saucer go left
• RIGHT arrow makes saucer go right
• The saucer cannot leave the bounds of the display window in any direction
• Gravity is always pulling the saucer down. Only UP arrow can make it ascend
• The saucer will continue being pulled down by gravity even if LEFT or RIGHT arrow keys are held down
• When ascending, the saucer's propellers should spin fast clockwise
• When descending, the saucer's propellers should slowly spin counter clockwise
• The propellers should not spin at all when the craft is on the ground
• All objects should be created with their center at (0,0) and then translated to where they belong

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