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[golang] implement sending the starting probe to a shipyard that sells other probes

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This commit is contained in:
Julien Dessaux 2025-02-18 00:05:48 +01:00
parent bd2fb50c81
commit 3656b87b86
Signed by: adyxax
GPG key ID: F92E51B86E07177E
6 changed files with 98 additions and 61 deletions
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72
golang/pkg/agent/utils.go
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@ -3,33 +3,29 @@ package agent
import (
"cmp"
"fmt"
"math"
"slices"
"git.adyxax.org/adyxax/spacetraders/golang/pkg/model"
)
type Point interface {
GetX() int
GetY() int
}
func distance2(a Point, b Point) int {
x2 := a.GetX() - b.GetX()
y2 := a.GetY() - b.GetY()
func distance2(a *model.Waypoint, b *model.Waypoint) int {
x2 := a.X - b.X
y2 := a.Y - b.Y
return x2*x2 + y2*y2
}
func (a *agent) isThereAShipAtWaypoint(waypoint *model.Waypoint) bool {
func (a *agent) isThereAShipAtWaypoint(waypointSymbol string) bool {
for _, ship := range a.ships {
if ship.Nav.WaypointSymbol == waypoint.Symbol {
if ship.Nav.WaypointSymbol == waypointSymbol {
return true
}
}
return false
}
func (a *agent) listWaypointsInSystemWithTrait(system *model.System, trait string) ([]model.Waypoint, error) {
waypoints, err := a.client.ListWaypointsInSystem(system, a.db)
func (a *agent) listWaypointsInSystemWithTrait(systemSymbol string, trait string) ([]model.Waypoint, error) {
waypoints, err := a.client.ListWaypointsInSystem(systemSymbol, a.db)
if err != nil {
return nil, fmt.Errorf("failed to list waypoints with trait: %w", err)
}
@ -44,24 +40,62 @@ func (a *agent) listWaypointsInSystemWithTrait(system *model.System, trait strin
return waypoints, nil
}
func (a *agent) listShipyardsInSystem(system *model.System) ([]model.Shipyard, error) {
waypoints, err := a.listWaypointsInSystemWithTrait(system, "SHIPYARD")
func (a *agent) listShipyardsInSystem(systemSymbol string) ([]model.Shipyard, error) {
waypoints, err := a.listWaypointsInSystemWithTrait(systemSymbol, "SHIPYARD")
if err != nil {
return nil, fmt.Errorf("failed to list shipyards in system: %w", err)
return nil, fmt.Errorf("failed to list shipyards in system %s: %w", systemSymbol, err)
}
var shipyards []model.Shipyard
for i := range waypoints {
shipyard, err := a.client.GetShipyard(&waypoints[i], a.db)
if err != nil {
return nil, fmt.Errorf("failed to list shipyards in system: %w", err)
return nil, fmt.Errorf("failed to list shipyards in system %s: %w", systemSymbol, err)
}
shipyards = append(shipyards, *shipyard)
}
return shipyards, nil
}
func sortByDistanceFrom[P Point](origin P, destinations []P) {
slices.SortFunc(destinations, func(a, b P) int {
return cmp.Compare(distance2(origin, a), distance2(origin, b))
func (a *agent) sendShipToShipyardThatSells(ship *model.Ship, shipType string) error {
shipyards, err := a.listShipyardsInSystem(ship.Nav.SystemSymbol)
if err != nil {
return fmt.Errorf("failed to send ship %s to a shipyard that sells %s: %w", ship.Symbol, shipType, err)
}
// filter out the shipyards that do not sell our ship
shipyards = slices.DeleteFunc(shipyards, func(shipyard model.Shipyard) bool {
for _, t := range shipyard.ShipTypes {
if t.Type == shipType {
return false
}
}
return true
})
// sort by cheapest
slices.SortFunc(shipyards, func(a, b model.Shipyard) int {
aPrice := math.MaxInt
for _, ship := range a.Ships {
if ship.Type == shipType {
aPrice = ship.PurchasePrice
break
}
}
bPrice := math.MaxInt
for _, ship := range b.Ships {
if ship.Type == shipType {
bPrice = ship.PurchasePrice
break
}
}
return cmp.Compare(aPrice, bPrice)
})
if err := a.client.Navigate(ship, shipyards[0].Symbol, a.db); err != nil {
return fmt.Errorf("failed to send ship %s to a shipyard that sells %s: %w", ship.Symbol, shipType, err)
}
return nil
}
func sortByDistanceFrom(origin *model.Waypoint, destinations []model.Waypoint) {
slices.SortFunc(destinations, func(a, b model.Waypoint) int {
return cmp.Compare(distance2(origin, &a), distance2(origin, &b))
})
}