Ilia Denisov
120 lines
3.1 KiB
Go
120 lines
3.1 KiB
Go
package controller
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import (
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e "github.com/iliadenisov/galaxy/internal/error"
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"github.com/iliadenisov/galaxy/internal/model/game"
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"github.com/iliadenisov/galaxy/internal/util"
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)
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func (c *Controller) SendGroup(raceName string, groupIndex, planetNumber, quantity uint) error {
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ri, err := c.Cache.raceIndex(raceName)
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if err != nil {
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return err
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}
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return c.Cache.SendGroup(ri, groupIndex, planetNumber, quantity)
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}
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func (c *Cache) SendGroup(ri int, groupIndex, planetNumber, quantity uint) error {
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c.validateRaceIndex(ri)
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sgi, ok := c.raceShipGroupIndex(ri, groupIndex)
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if !ok {
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return e.NewEntityNotExistsError("group #%d", groupIndex)
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}
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st := c.ShipGroupShipClass(sgi)
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if st.DriveBlockMass() == 0 {
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return e.NewSendShipHasNoDrivesError()
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}
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sourcePlanet, ok := c.ShipGroup(sgi).OnPlanet()
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if !ok {
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return e.NewShipsBusyError()
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}
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if c.ShipGroup(sgi).Number < quantity {
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return e.NewBeakGroupNumberNotEnoughError("%d<%d", c.ShipGroup(sgi).Number, quantity)
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}
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p1, ok := c.Planet(sourcePlanet)
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if !ok {
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return e.NewGameStateError("source planet #%d does not exists", sourcePlanet)
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}
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p2, ok := c.Planet(planetNumber)
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if !ok {
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return e.NewEntityNotExistsError("destination planet #%d", planetNumber)
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}
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rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X, p1.Y, p2.X, p2.Y)
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if rangeToDestination > c.g.Race[ri].FlightDistance() {
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return e.NewSendUnreachableDestinationError("range=%.03f", rangeToDestination)
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}
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if quantity > 0 && quantity < c.ShipGroup(sgi).Number {
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nsgi, err := c.breakGroupSafe(ri, groupIndex, quantity)
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if err != nil {
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return err
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}
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sgi = nsgi
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}
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if p1.Number == p2.Number {
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c.UnsendShips(c.ShipGroup(sgi))
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c.JoinEqualGroups(ri)
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return nil
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}
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c.LaunchShips(c.ShipGroup(sgi), planetNumber)
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return nil
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}
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func (c *Cache) LaunchShips(sg *game.ShipGroup, destination uint) *game.ShipGroup {
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for i := range c.ShipGroupsIndex() {
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if c.ShipGroup(i).OwnerID == sg.OwnerID && c.ShipGroup(i).Index == sg.Index {
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state := c.ShipGroup(i).State()
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var p *game.Planet
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switch state {
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case game.StateInOrbit:
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p = c.MustPlanet(sg.Destination)
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case game.StateLaunched:
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p = c.MustPlanet(sg.StateInSpace.Origin)
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default:
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panic("state invalid")
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}
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c.g.ShipGroups[i] = LaunchShips(*sg, destination, p.X, p.Y)
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return &c.g.ShipGroups[i]
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}
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}
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panic("ship group not found")
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}
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func (c *Cache) UnsendShips(sg *game.ShipGroup) *game.ShipGroup {
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for i := range c.ShipGroupsIndex() {
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if c.ShipGroup(i).OwnerID == sg.OwnerID && c.ShipGroup(i).Index == sg.Index {
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state := c.ShipGroup(i).State()
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if state != game.StateLaunched {
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panic("state invalid")
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}
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c.g.ShipGroups[i] = UnsendShips(*sg)
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return &c.g.ShipGroups[i]
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}
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}
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panic("ship group not found")
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}
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func LaunchShips(sg game.ShipGroup, destination uint, originX, originY float64) game.ShipGroup {
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sg.StateInSpace = &game.InSpace{
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Origin: sg.Destination,
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X: originX,
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Y: originY,
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}
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sg.Destination = destination
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return sg
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}
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func UnsendShips(sg game.ShipGroup) game.ShipGroup {
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sg.Destination = sg.StateInSpace.Origin
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sg.StateInSpace = nil
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return sg
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}
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