fs storage

game/internal/controller/ship_group_move.go

@@ -0,0 +1,67 @@
+package controller
+
+import (
+	"fmt"
+	"iter"
+
+	"galaxy/util"
+
+	"galaxy/game/internal/model/game"
+)
+
+func (c *Cache) MoveShipGroups() {
+	moved := make(map[int]bool)
+	for i := range c.listMoveableGroupIds() {
+		if v, ok := moved[i]; ok && v {
+			continue
+		}
+		sg := c.ShipGroup(i)
+
+		if sg.FleetID != nil {
+			fi := c.MustFleetIndex(*sg.FleetID)
+			delta, _ := c.FleetSpeedAndMass(fi)
+			for fgi := range c.fleetGroupIds(c.RaceIndex(sg.OwnerID), c.MustFleetIndex(*sg.FleetID)) {
+				c.moveShipGroup(fgi, delta)
+				moved[fgi] = true
+			}
+			continue
+		}
+
+		c.moveShipGroup(i, sg.Speed(c.ShipGroupShipClass(i)))
+		moved[i] = true
+	}
+}
+
+func (c *Cache) moveShipGroup(i int, delta float64) {
+	sg := c.ShipGroup(i)
+	originX, originY, ok := sg.Coord()
+	if !ok {
+		panic(fmt.Sprintf("ship group state invalid: %v", sg.State()))
+	}
+	destPlanet := c.MustPlanet(sg.Destination)
+	arrived := false
+	var x, y float64
+	x, y, arrived =
+		util.NextTravelCoord(c.g.Map.Width, c.g.Map.Height, originX, originY, destPlanet.X.F(), destPlanet.Y.F(), delta)
+	fx, fy := game.F(x), game.F(y)
+	sg.StateInSpace.X = &fx
+	sg.StateInSpace.Y = &fy
+	if arrived {
+		sg.StateInSpace = nil
+	}
+}
+
+func (c *Cache) listMoveableGroupIds() iter.Seq[int] {
+	return func(yield func(int) bool) {
+		for i := range c.ShipGroupsIndex() {
+			sg := c.ShipGroup(i)
+			state := sg.State()
+			if !(state == game.StateInOrbit || state == game.StateLaunched || state == game.StateInSpace) {
+				continue
+			}
+			if !yield(i) {
+				return
+			}
+		}
+	}
+}