package sim

// Peripheral port numbers. Values are int32; positions are kilometres,
// velocities metres/second, angles milliradians, masses kilograms. Axes are
// right-handed with Z perpendicular to the ecliptic; azimuth is measured from
// +X towards +Y and elevation (pitch) up from the XY plane towards +Z.
const (
	// System.
	PortTick  = 0x00 // in: tick within the current day
	PortDay   = 0x01 // in: day number
	PortTicks = 0x02 // in: ticks per day

	// Navigation (relative to the star).
	PortPosX = 0x10
	PortPosY = 0x11
	PortPosZ = 0x12
	PortVelX = 0x13
	PortVelY = 0x14
	PortVelZ = 0x15

	// Engine.
	PortThrottle = 0x20 // out: 0..1000 permille
	PortAzimuth  = 0x21 // out: thrust direction azimuth, milliradians
	PortPitch    = 0x22 // out: thrust direction elevation, milliradians
	PortFuel     = 0x23 // in: fuel kg
	PortMass     = 0x24 // in: total mass kg

	// Scanner.
	PortScanSelect  = 0x30 // out: asteroid id to track (0 clears)
	PortScanNearest = 0x31 // in: id of nearest asteroid
	PortScanRelX    = 0x32 // in: target position relative to ship, km
	PortScanRelY    = 0x33
	PortScanRelZ    = 0x34
	PortScanRelVX   = 0x35 // in: target velocity relative to ship, m/s
	PortScanRelVY   = 0x36
	PortScanRelVZ   = 0x37
	PortScanDist    = 0x38 // in: distance to target, km
	PortScanOre     = 0x40 // in: PortScanOre+ore = kg of ore remaining (8 ports)

	// Mining laser and cargo hold.
	PortMine     = 0x50 // out: 1 to mine the selected asteroid, 0 to stop
	PortCargo    = 0x51 // in: total cargo kg
	PortCargoCap = 0x52 // in: cargo capacity kg
	PortCargoOre = 0x58 // in: PortCargoOre+ore = kg of ore carried (8 ports)

	// Dropoff station.
	PortStnRelX  = 0x60 // in: station position relative to ship, km
	PortStnRelY  = 0x61
	PortStnRelZ  = 0x62
	PortStnRelVX = 0x63 // in: station velocity relative to ship, m/s
	PortStnRelVY = 0x64
	PortStnRelVZ = 0x65
	PortSell     = 0x66 // out: 1 to sell all cargo (needs to be docked)
	PortCredits  = 0x67 // in: credits earned by this ship (saturating)

	// Comms buffers live in RAM; these ports coordinate them.
	PortUplinkNew = 0x70 // in: 1 if an uplink arrived this day; out: any value acknowledges
	PortUplinkLen = 0x71 // in: uplink length in bytes

	// Math coprocessor. Write operands, then read a result.
	PortMathX     = 0x80 // out
	PortMathY     = 0x81 // out
	PortMathZ     = 0x82 // out
	PortMathAtan2 = 0x83 // in: atan2(y, x) in milliradians
	PortMathHypot = 0x84 // in: sqrt(x*x + y*y)
	PortMathNorm3 = 0x85 // in: sqrt(x*x + y*y + z*z)
)