Gameplay

Building a ship

to create a ship, the participant has to mint a new ShipToken and matching PilotToken through a mint validator called ShipyardPolicy.
each Pilot / Ship token pair will be unique. The validator will ensure uniqueness by incrementing a "counter" datum locked in the AsteriaUtxo.
the asset name of the ShipToken and PilotToken will contain the counter value as a suffix. Eg: SHIP23 and PILOT23.
the ShipToken needs to be locked in the SpaceTimeScript and the PilotToken needs to go to an address controlled by the participant.
the mint process will require locking an ADA payment adding to the reward pot. The amount of this payment is defined by our constant SHIP_MINT_FEE.

movement of a ship through the grid is achieved by a transaction the consumes the ShipState UTxO and outputs a new one with the updated state.
the maximum distance that can be achieved in a single transaction is constrained by the constant MAX_SHIP_MOVEMENT_PER_TX.
moving the ship will consume a quantity of fuel proportional to the distance. The ratio of fuel required per distance unit is defined by the constant FUEL_PER_DISTANCE_UNIT.

gathering fuel is achieved by a transaction that consumes the ShipUtxo and a PelletUtxo and outputs a new ShipUtxo with increased fuel value.
to consume a fuel pellet, the position of the ship must overlap with the position of the pellet.
the total amount of fuel that ship has can't exceed the MAX_SHIP_FUEL parameter.
if the fuel pellet isn't totally consumed, a new PelletUtxo needs to be generated with the remaining of the fuel and maintaining the same location in the grid.

this action is achieved by a transaction that consumes the ShipUtxo and AsteriaUtxo and outputs a new one that extracts assets from the AsteriaUtxo into a wallet defined by the participant.
the amount of assets that can be extracted from the AsteriaUtxo must not exceed a percentage of the total available defined by the MAX_ASTERIA_MINING.
to execute this action, the ShipUtxo must be present at coordinates (0, 0).