Space Supply

how to play:

The aim of the game is to collect resources from the asteroids and deliver them back to the planet.
If the coal or iron resource is below 0 the game is over and the user loses.
The gold resource is used to upgrade the ship to allow for a bigger payload(to carry more resources back to the planet) 
and a special camera on the ship which shows the user which resource is on the asteroid (useful in late game).

features:
+ Space physics using thrusters (rigidbody force)
+ dock and undock from asteroids and planets
+ gets harder the longer you play (each day the planet consumes more resources)
+ upgrade system for spaceship using gold resource

future features:
+ allow for players to collect resources from different asteroids (only lets you collect once even if there is space left)
+ animation for the spaceship to show the thruster physics

controls:
uparrow - add force in direction facing with thrusters
leftarrow - move the direction of the spaceship left
rightarrow - moe the direction of the spaceship right
left shift - add force thrusters to every side of ship to stop the spaceship (Allows for better control of the ship)
u - undock from the planet or asteroid (can use the x on the ui)
d - dock onto the planet or asteroid (can use the x on the ui)

sounds and music:
https://freesound.org/people/InspectorJ/sounds/414435/
https://freesound.org/people/Jagadamba/sounds/254300/
https://freesound.org/people/Prosser/sounds/233997/
https://freesound.org/people/Cabeeno%20Rossley/sounds/126422/
https://freesound.org/people/Mrthenoronha/sounds/371516/
https://freesound.org/people/frankum/sounds/426470/
https://freesound.org/people/noirenex/sounds/159408/
https://www.freesoundeffects.com/free-sounds/missile-10071/

sprites:
http://pixelartmaker.com/art/a81eb6a7034f013
http://pixelartmaker.com/art/d14f9db0179631b (edited)