center markup, change bg with marioRocchi's
add missile.png, and initial code for sprite handling
fix bug in drawSpriteFrame call
fix bug in drawSpriteFrame, include some debug circles
bug fix on draw lines
switch frames on missile
animate missile sprite try 2
slowdown missile animation
first attempt at missile trig rotation
second attempt
3rd attempt getting closer
changed resources
add cannon image
cannon second attempt
cannon rotation and base;