- allow users to join a game
- get location of phones
- get elevation of phones --
- communicate info about other phones between each other
- determine if 2 users are close to each other
- determine if phone is pointed towards another phone
- determine if user tries shooting a laser
- calculate points earned per player
- show final scores at the end?
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get location of phones -Google api
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let other phones know the locations of all phones -send location to all phones? use a server??
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determine if 2 users are close to each other -use Google api again
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determine if phone is pointed towards other phone
- hardware sensor of the phone (gyroscope?) (vectors)