Floaters
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Red: Bomb when falcon collides with it, all asteroid will be killed
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Yellow: get fire power up(expires in 200 ticks). Fire changes from Bullet to Cruise and Cruise will reflect will it touches the edges of the screen
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Blue: add a life
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Green: get a shield(expires in 100 ticks).
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Two situation for generating a floater:
- When a big asteroid is killed, there is 50% chance to get a new floater
- After some interval, a new floater is put in randomly
Score and level
- There will show current score and level on the left-top corner.
- Level-up rule is changed: Level will add one every time user earns 10000 points.
Explosion and dust
- Add explosion effect(kind like firework) when an asteroid is killed.
- Dust will be generated with explosion which is not harmful to the falcon and will shrink with time goes by(expires in 100 ticks)
Asteroid generating rule changed
- Asteroid will keep adding until the sum reaches upper bound which is current level * 5
New Control
- use "WASD" keys to move and diagonal moves are supported
- use "→←↑↓" keys to fire and diagonal firing are supported