refactor: float64 types for storage and report

internal/controller/battle.go

@@ -65,9 +65,9 @@ func FilterBattleOpponents(c *Cache, attIdx, defIdx int, cacheProbability map[in
 
 	p := DestructionProbability(
 		c.ShipGroupShipClass(attIdx).Weapons,
-		c.ShipGroup(attIdx).TechLevel(game.TechWeapons),
+		c.ShipGroup(attIdx).TechLevel(game.TechWeapons).F(),
 		c.ShipGroupShipClass(defIdx).Shields,
-		c.ShipGroup(defIdx).TechLevel(game.TechShields),
+		c.ShipGroup(defIdx).TechLevel(game.TechShields).F(),
 		c.ShipGroup(defIdx).FullMass(c.ShipGroupShipClass(defIdx)),
 	)
 	// Exclude opponent's group which cannot be probably destroyed

internal/controller/battle_transform.go

@@ -30,11 +30,11 @@ func TransformBattle(c *Cache, b *Battle) *report.BattleReport {
 			NumberLeft:   sg.Number,
 			ClassName:    shipClass.Name,
 			LoadType:     sg.CargoString(),
-			LoadQuantity: sg.Load,
+			LoadQuantity: sg.Load.RF(),
-			Drive:        sg.TechLevel(game.TechDrive),
+			Drive:        sg.TechLevel(game.TechDrive).RF(),
-			Weapons:      sg.TechLevel(game.TechWeapons),
+			Weapons:      sg.TechLevel(game.TechWeapons).RF(),
-			Shields:      sg.TechLevel(game.TechShields),
+			Shields:      sg.TechLevel(game.TechShields).RF(),
-			Cargo:        sg.TechLevel(game.TechCargo),
+			Cargo:        sg.TechLevel(game.TechCargo).RF(),
 		}
 		cacheShipClass[shipClass.ID] = itemNumber
 		return itemNumber

internal/controller/bombing.go

@@ -20,12 +20,12 @@ func (c *Cache) bombingReport(p *game.Planet, ri int, groups []int) report.Bombi
 		Owner:       c.g.Race[c.RaceIndex(p.Owner)].Name,
 		Attacker:    c.g.Race[ri].Name,
 		Production:  c.PlanetProductionDisplayName(p.Number),
-		Industry:    p.Industry,
+		Industry:    p.Industry.RF(),
-		Population:  p.Population,
+		Population:  p.Population.RF(),
-		Colonists:   p.Colonists,
+		Colonists:   p.Colonists.RF(),
-		Capital:     p.Capital,
+		Capital:     p.Capital.RF(),
-		Material:    p.Material,
+		Material:    p.Material.RF(),
-		AttackPower: attackPower,
+		AttackPower: game.RF(attackPower),
 	}
 	bombPlanet(p, attackPower)
 	r.Wiped = p.Population == 0
@@ -61,23 +61,23 @@ func (c *Cache) ProduceBombings() []report.BombingPlanetReport {
 
 func bombPlanet(p *game.Planet, power float64) {
 	// Уничтожается население и колонисты в количестве равном [суммарной] мощности бомбардировки
-	if power > p.Population {
+	if power > p.Population.F() {
-		p.Population = 0
+		p.Pop(0)
 	} else {
-		p.Population -= power
+		p.Pop(p.Population.F() - power)
 	}
-	if power > p.Colonists {
+	if power > p.Colonists.F() {
-		p.Colonists = 0
+		p.Col(0)
 	} else {
-		p.Colonists -= power
+		p.Col(p.Colonists.F() - power)
 	}
 	// Такое же количество промышленности превращается в сырье
-	if power > p.Industry {
+	if power > p.Industry.F() {
-		p.Material += p.Industry
+		p.Mat(p.Material.F() + p.Industry.F())
-		p.Industry = 0
+		p.Ind(0)
 	} else {
-		p.Material += power
+		p.Mat(p.Material.F() + power)
-		p.Industry -= power
+		p.Ind(p.Industry.F() - power)
 	}
 }
 

internal/controller/bombing_test.go

@@ -12,25 +12,25 @@ import (
 func TestBombPlanet(t *testing.T) {
 	p := controller.NewPlanet(0, "Planet_0", uuid.New(), 1, 1, 1000, 300, 200, 10, game.ResearchDrive.AsType(uuid.Nil))
 	(&p).Colonists = 100.
-	assert.Equal(t, 0., p.Material)
+	assert.Equal(t, 0., p.Material.F())
 
 	controller.BombPlanet(&p, 55.)
-	assert.Equal(t, 245., p.Population)
+	assert.Equal(t, 245., p.Population.F())
-	assert.Equal(t, 45., p.Colonists)
+	assert.Equal(t, 45., p.Colonists.F())
-	assert.Equal(t, 145., p.Industry)
+	assert.Equal(t, 145., p.Industry.F())
-	assert.Equal(t, 55., p.Material)
+	assert.Equal(t, 55., p.Material.F())
 
 	controller.BombPlanet(&p, 56.)
-	assert.Equal(t, 189., p.Population)
+	assert.Equal(t, 189., p.Population.F())
-	assert.Equal(t, 0., p.Colonists)
+	assert.Equal(t, 0., p.Colonists.F())
-	assert.Equal(t, 89., p.Industry)
+	assert.Equal(t, 89., p.Industry.F())
-	assert.Equal(t, 111., p.Material)
+	assert.Equal(t, 111., p.Material.F())
 
 	controller.BombPlanet(&p, 200.)
-	assert.Equal(t, 0., p.Population)
+	assert.Equal(t, 0., p.Population.F())
-	assert.Equal(t, 0., p.Colonists)
+	assert.Equal(t, 0., p.Colonists.F())
-	assert.Equal(t, 0., p.Industry)
+	assert.Equal(t, 0., p.Industry.F())
-	assert.Equal(t, 200., p.Material)
+	assert.Equal(t, 200., p.Material.F())
 }
 
 func TestCollectBombingGroups(t *testing.T) {
@@ -126,19 +126,19 @@ func TestProduceBombings(t *testing.T) {
 		case R1_Planet_1_num:
 			assert.Equal(t, Race_1.Name, r.Owner)
 			assert.Equal(t, Race_0.Name, r.Attacker)
-			assert.InDelta(t, 697.857, r.AttackPower, 0.0003)
+			assert.InDelta(t, 697.857, r.AttackPower.F(), 0.0003)
 			assert.True(t, r.Wiped)
 			assert.Equal(t, uuid.Nil, c.MustPlanet(pn).Owner)
 			assert.Empty(t, c.MustPlanet(pn).Route)
-			assert.Equal(t, 0., c.MustPlanet(pn).Population)
+			assert.Equal(t, 0., c.MustPlanet(pn).Population.F())
 		case R0_Planet_2_num:
 			assert.Equal(t, Race_0.Name, r.Owner)
 			assert.Equal(t, Race_1.Name, r.Attacker)
-			assert.InDelta(t, 358.85596, r.AttackPower, 0.000001)
+			assert.Equal(t, 358.856, r.AttackPower.F())
 			assert.False(t, r.Wiped)
 			assert.Equal(t, Race_0_ID, c.MustPlanet(pn).Owner)
 			assert.NotEmpty(t, c.MustPlanet(pn).Route)
-			assert.InDelta(t, 500.-358.85596, c.MustPlanet(pn).Population, 0.000001)
+			assert.InDelta(t, 500.-358.85596, c.MustPlanet(pn).Population.F(), 0.000001)
 		}
 	}
 }

internal/controller/fleet_send.go

@@ -34,7 +34,7 @@ func (c *Cache) SendFleet(ri, fi int, planetNumber uint) error {
 	if !ok {
 		return e.NewEntityNotExistsError("destination planet #%d", planetNumber)
 	}
-	rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X, p1.Y, p2.X, p2.Y)
+	rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X.F(), p1.Y.F(), p2.X.F(), p2.Y.F())
 	if rangeToDestination > c.g.Race[ri].FlightDistance() {
 		return e.NewSendUnreachableDestinationError("range=%.03f", rangeToDestination)
 	}

internal/controller/generate_game.go

@@ -134,16 +134,16 @@ func NewPlanet(num uint, name string, owner uuid.UUID, x, y, size, pop, ind, res
 		PlanetReport: game.PlanetReport{
 			UninhabitedPlanet: game.UninhabitedPlanet{
 				UnidentifiedPlanet: game.UnidentifiedPlanet{
-					X:      x,
+					X:      game.F(x),
-					Y:      y,
+					Y:      game.F(y),
 					Number: num,
 				},
-				Size:      size,
+				Size:      game.F(size),
 				Name:      name,
-				Resources: res,
+				Resources: game.F(res),
 			},
-			Population: pop,
+			Population: game.F(pop),
-			Industry:   ind,
+			Industry:   game.F(ind),
 			Production: prod,
 		},
 	}

internal/controller/planet.go

@@ -108,7 +108,7 @@ func (c *Cache) PlanetProduction(ri int, number int, prod game.ProductionType, s
 
 	if p.Production.Type == game.ProductionShip && (prod != game.ProductionShip || *subjectID != *p.Production.SubjectID) {
 		mat, _ := c.MustShipType(ri, *p.Production.SubjectID).ProductionCost()
-		p.Material += mat * (*p.Production.Progress)
+		p.Mat(p.Material.F() + mat*(*p.Production.Progress))
 		*p.Production.Progress = 0.
 	} else if prod == game.ProductionShip {
 		// new ship class to produce; otherwise we must have been returned from the func earlier
@@ -265,15 +265,15 @@ func (c *Cache) listProducingPlanets() iter.Seq[uint] {
 // Internal funcs
 
 func (c *Cache) putPopulation(pn uint, v float64) {
-	c.MustPlanet(pn).Population = v
+	c.MustPlanet(pn).Pop(v)
 }
 
 func (c *Cache) putColonists(pn uint, v float64) {
-	c.MustPlanet(pn).Colonists = v
+	c.MustPlanet(pn).Col(v)
 }
 
 func (c *Cache) putMaterial(pn uint, v float64) {
-	c.MustPlanet(pn).Material = v
+	c.MustPlanet(pn).Mat(v)
 }
 
 func ProduceShip(p *game.Planet, shipMass float64) uint {
@@ -281,20 +281,20 @@ func ProduceShip(p *game.Planet, shipMass float64) uint {
 	if productionAvailable <= 0 {
 		return 0
 	}
-	CAP_perShip := shipMass / p.Resources
+	CAP_perShip := shipMass / p.Resources.F()
 	productionForMass := shipMass * 10.
 	ships := uint(0)
 	flZero := 0.
 	p.Production.Progress = &flZero
 	for productionAvailable > 0 {
 		var productionExtraCAP float64
-		if CAP_deficit := p.Capital - CAP_perShip; CAP_deficit < 0 {
+		if CAP_deficit := p.Capital.F() - CAP_perShip; CAP_deficit < 0 {
 			productionExtraCAP = -CAP_deficit
 		}
 		productionCost := productionExtraCAP + productionForMass
 		if productionAvailable >= productionCost {
 			productionAvailable -= productionCost
-			p.Capital = p.Capital - (CAP_perShip - productionExtraCAP)
+			p.Cap(p.Capital.F() - (CAP_perShip - productionExtraCAP))
 			ships++
 		} else {
 			progress := productionAvailable / productionCost

internal/controller/planet_test.go

@@ -152,7 +152,7 @@ func TestProduceShips(t *testing.T) {
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 1)
 	assert.Equal(t, uint(7), c.ShipGroup(0).Number)
 	assert.NoError(t, g.PlanetProduction(Race_0.Name, pn, "SHIP", "Drone"))
-	assert.InDelta(t, shipMass*progress, c.MustPlanet(R0_Planet_0_num).Material, 0.00001) // 99.(0099) material build
+	assert.InDelta(t, shipMass*progress, c.MustPlanet(R0_Planet_0_num).Material.F(), 0.00001) // 99.(0099) material build
 
 	c.MustPlanet(R0_Planet_0_num).Material = 0
 	c.MustPlanet(R0_Planet_0_num).Colonists = 0
@@ -197,7 +197,7 @@ func TestProduceShip(t *testing.T) {
 	r = controller.ProduceShip(&p, Drone.EmptyMass())
 	assert.Equal(t, uint(100), r)
 	assert.Equal(t, 0., *p.Production.Progress)
-	assert.Equal(t, 0., number.Fixed3(p.Capital)) // TODO: zero CAP is not actual '0.0' after series of decrements
+	assert.Equal(t, 0., number.Fixed3(p.Capital.F())) // TODO: zero CAP is not actual '0.0' after series of decrements
 
 	(&p).Production = game.ProductionShip.AsType(uuid.Nil)
 	(&p).Capital = 0.
@@ -242,17 +242,17 @@ func TestTurnPlanetProductions(t *testing.T) {
 	pn := int(R0_Planet_0_num)
 
 	assert.NoError(t, g.PlanetProduction(Race_0.Name, pn, "CAP", ""))
-	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Capital)
+	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Capital.F())
-	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Colonists)
+	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Colonists.F())
 	c.TurnPlanetProductions()
-	assert.InDelta(t, 196., c.MustPlanet(R0_Planet_0_num).Capital, 0.1)
+	assert.InDelta(t, 196., c.MustPlanet(R0_Planet_0_num).Capital.F(), 0.1)
-	assert.InDelta(t, 10.0, c.MustPlanet(R0_Planet_0_num).Colonists, 0.000001) // FIXME: should store more exact value
+	assert.InDelta(t, 10.0, c.MustPlanet(R0_Planet_0_num).Colonists.F(), 0.000001) // FIXME: should store more exact value
 
 	assert.NoError(t, g.PlanetProduction(Race_0.Name, pn, "MAT", ""))
-	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Material.F())
 	c.TurnPlanetProductions()
-	assert.Equal(t, 10000., c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 10000., c.MustPlanet(R0_Planet_0_num).Material.F())
-	assert.InDelta(t, 20.0, c.MustPlanet(R0_Planet_0_num).Colonists, 0.000001)
+	assert.InDelta(t, 20.0, c.MustPlanet(R0_Planet_0_num).Colonists.F(), 0.000001)
 
 	assert.NoError(t, g.PlanetProduction(Race_0.Name, pn, "DRIVE", ""))
 	assert.Equal(t, 1.1, c.Race(Race_0_idx).TechLevel(game.TechDrive))

internal/controller/route.go

@@ -39,7 +39,7 @@ func (c *Cache) SetRoute(ri int, rt game.RouteType, origin, destination uint) er
 	if !ok {
 		return e.NewEntityNotExistsError("destination planet #%d", destination)
 	}
-	rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X, p1.Y, p2.X, p2.Y)
+	rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X.F(), p1.Y.F(), p2.X.F(), p2.Y.F())
 	if rangeToDestination > c.g.Race[ri].FlightDistance() {
 		return e.NewSendUnreachableDestinationError("range=%.03f max=%.03f", rangeToDestination, c.g.Race[ri].FlightDistance())
 	}
@@ -127,7 +127,7 @@ func (c *Cache) SendRoutedGroups() {
 			if !ok {
 				continue
 			}
-			var res *float64
+			var res *game.Float
 			var ct game.CargoType
 			switch rt {
 			case game.RouteColonist:
@@ -152,7 +152,7 @@ func (c *Cache) SendRoutedGroups() {
 				st := c.ShipGroupShipClass(sgi)
 				ships := sg.Number
 				sgCapacity := sg.CargoCapacity(st)
-				toLoad := *res
+				toLoad := (*res).F()
 				if toLoad > sgCapacity {
 					toLoad = sgCapacity
 				} else if maxShips := uint(math.Ceil(toLoad / (sgCapacity / float64(ships)))); maxShips < ships {
@@ -160,9 +160,9 @@ func (c *Cache) SendRoutedGroups() {
 					sg = c.ShipGroup(newGroupIdx)
 				}
 				// decrease planet resource
-				*res = *res - toLoad
+				*res = (*res).Add(-toLoad)
 				// load group
-				sg.Load += toLoad
+				sg.Load = sg.Load.Add(toLoad)
 				sg.CargoType = &ct
 				c.LaunchShips(sg, dest)
 				groups = reorderGroups(groups)
@@ -214,7 +214,7 @@ func (c *Cache) RemoveUnreachableRoutes() {
 		ri := c.RaceIndex(p1.Owner)
 		for rt, destination := range p1.Route {
 			p2 := c.MustPlanet(destination)
-			rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X, p1.Y, p2.X, p2.Y)
+			rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X.F(), p1.Y.F(), p2.X.F(), p2.Y.F())
 			if rangeToDestination > c.g.Race[ri].FlightDistance() {
 				delete(p1.Route, rt)
 			}
@@ -224,7 +224,7 @@ func (c *Cache) RemoveUnreachableRoutes() {
 
 func (c *Cache) doUnload(groups iter.Seq[int]) {
 	for sgi := range groups {
-		c.unsafeUnloadCargo(sgi, c.ShipGroup(sgi).Load)
+		c.unsafeUnloadCargo(sgi, c.ShipGroup(sgi).Load.F())
 	}
 }
 
@@ -255,7 +255,7 @@ func (c *Cache) selectColUnloadGroup(groups []int) (result iter.Seq[int]) {
 		sg := c.ShipGroup(i)
 		ri := c.RaceIndex(sg.OwnerID)
 		groupByRace[ri] = append(groupByRace[ri], i)
-		loadByRace[ri] += sg.Load
+		loadByRace[ri] += sg.Load.F()
 	}
 	if len(loadByRace) < 2 {
 		// only one race has to unload cargo

internal/controller/route_test.go

@@ -129,7 +129,7 @@ func TestListRoutedSendGroupIds(t *testing.T) {
 		assert.Equal(t, Race_0_ID, sg.OwnerID)
 		assert.Greater(t, sg.CargoCapacity(st), 0.)
 		assert.Equal(t, game.StateInOrbit, sg.State())
-		assert.Equal(t, 0., sg.Load)
+		assert.Equal(t, 0., sg.Load.F())
 		assert.Nil(t, sg.FleetID)
 	}
 }
@@ -149,11 +149,11 @@ func TestEnrouteGroups_SplitGroup(t *testing.T) {
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 2)
 	assert.Equal(t, game.StateInOrbit, c.ShipGroup(0).State())
 	assert.Equal(t, uint(1), c.ShipGroup(0).Number)
-	assert.Equal(t, 0., c.ShipGroup(0).Load)
+	assert.Equal(t, 0., c.ShipGroup(0).Load.F())
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(1).State())
 	assert.Equal(t, uint(4), c.ShipGroup(1).Number)
-	assert.Equal(t, 65., c.ShipGroup(1).Load)
+	assert.Equal(t, 65., c.ShipGroup(1).Load.F())
-	assert.Equal(t, 0., c.MustPlanet(R0_Planet_0_num).Colonists)
+	assert.Equal(t, 0., c.MustPlanet(R0_Planet_0_num).Colonists.F())
 }
 
 func TestEnrouteGroups_GroupSorting(t *testing.T) {
@@ -177,8 +177,8 @@ func TestEnrouteGroups_GroupSorting(t *testing.T) {
 	assert.Equal(t, game.StateInOrbit, c.ShipGroup(0).State())
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(1).State())
 
-	assert.Equal(t, 100., c.ShipGroup(1).Load)
+	assert.Equal(t, 100., c.ShipGroup(1).Load.F())
-	assert.Equal(t, 0., c.MustPlanet(R0_Planet_0_num).Colonists)
+	assert.Equal(t, 0., c.MustPlanet(R0_Planet_0_num).Colonists.F())
 }
 
 func TestEnrouteGroups_LaunchOrder(t *testing.T) {
@@ -215,7 +215,7 @@ func TestEnrouteGroups_LaunchOrder(t *testing.T) {
 	sgi := 0
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(sgi).State())
 	assert.Equal(t, R0_Planet_2_num, c.ShipGroup(sgi).Destination)
-	assert.Equal(t, 105., c.ShipGroup(sgi).Load)
+	assert.Equal(t, 105., c.ShipGroup(sgi).Load.F())
 	assert.NotNil(t, c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, game.CargoColonist, *c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, uint(5), c.ShipGroup(sgi).Number)
@@ -224,7 +224,7 @@ func TestEnrouteGroups_LaunchOrder(t *testing.T) {
 	sgi = 3
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(sgi).State())
 	assert.Equal(t, R0_Planet_2_num, c.ShipGroup(sgi).Destination)
-	assert.Equal(t, 45., c.ShipGroup(sgi).Load)
+	assert.Equal(t, 45., c.ShipGroup(sgi).Load.F())
 	assert.NotNil(t, c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, game.CargoColonist, *c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, uint(3), c.ShipGroup(sgi).Number)
@@ -233,7 +233,7 @@ func TestEnrouteGroups_LaunchOrder(t *testing.T) {
 	sgi = 2
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(sgi).State())
 	assert.Equal(t, R0_Planet_2_num, c.ShipGroup(sgi).Destination)
-	assert.Equal(t, 100., c.ShipGroup(sgi).Load)
+	assert.Equal(t, 100., c.ShipGroup(sgi).Load.F())
 	assert.NotNil(t, c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, game.CargoCapital, *c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, uint(5), c.ShipGroup(sgi).Number)
@@ -242,7 +242,7 @@ func TestEnrouteGroups_LaunchOrder(t *testing.T) {
 	sgi = 4
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(sgi).State())
 	assert.Equal(t, R0_Planet_2_num, c.ShipGroup(sgi).Destination)
-	assert.Equal(t, 20., c.ShipGroup(sgi).Load)
+	assert.Equal(t, 20., c.ShipGroup(sgi).Load.F())
 	assert.NotNil(t, c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, game.CargoMaterial, *c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, uint(1), c.ShipGroup(sgi).Number)
@@ -251,7 +251,7 @@ func TestEnrouteGroups_LaunchOrder(t *testing.T) {
 	sgi = 1
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(sgi).State())
 	assert.Equal(t, R1_Planet_1_num, c.ShipGroup(sgi).Destination)
-	assert.Equal(t, 0., c.ShipGroup(sgi).Load)
+	assert.Equal(t, 0., c.ShipGroup(sgi).Load.F())
 	assert.Nil(t, c.ShipGroup(sgi).CargoType)
 	assert.Equal(t, uint(1), c.ShipGroup(sgi).Number)
 }
@@ -406,15 +406,15 @@ func TestTurnUnloadEnroutedGroups(t *testing.T) {
 
 	c.TurnUnloadEnroutedGroups()
 
-	assert.Equal(t, 0., c.ShipGroup(0).Load)
+	assert.Equal(t, 0., c.ShipGroup(0).Load.F())
-	assert.Equal(t, 222., c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 222., c.MustPlanet(R0_Planet_0_num).Material.F())
-	assert.Equal(t, 0., c.ShipGroup(1).Load)
+	assert.Equal(t, 0., c.ShipGroup(1).Load.F())
-	assert.Equal(t, 11., c.MustPlanet(R0_Planet_0_num).Capital)
+	assert.Equal(t, 11., c.MustPlanet(R0_Planet_0_num).Capital.F())
-	assert.Equal(t, 0., c.ShipGroup(2).Load)
+	assert.Equal(t, 0., c.ShipGroup(2).Load.F())
-	assert.Equal(t, 96.8, c.MustPlanet(Uninhabited_Planet_4_num).Population)
+	assert.Equal(t, 96.8, c.MustPlanet(Uninhabited_Planet_4_num).Population.F())
 	assert.Equal(t, Race_1_ID, c.MustPlanet(Uninhabited_Planet_4_num).Owner)
 	assert.Equal(t, game.ProductionCapital, c.MustPlanet(Uninhabited_Planet_4_num).Production.Type)
-	assert.Equal(t, 17.3, c.ShipGroup(3).Load)
+	assert.Equal(t, 17.3, c.ShipGroup(3).Load.F())
 }
 
 func TestRemoveUnreachableRoutes(t *testing.T) {

internal/controller/ship_group.go

@@ -61,7 +61,7 @@ func (c *Cache) ShipGroupJoinFleet(groupIndex int, fID *uuid.UUID) {
 func (c *Cache) ShipGroupShipsNumber(groupIndex int, number uint) {
 	c.validateShipGroupIndex(groupIndex)
 	if c.g.ShipGroups[groupIndex].Number > 0 {
-		c.g.ShipGroups[groupIndex].Load = c.g.ShipGroups[groupIndex].Load / float64(c.g.ShipGroups[groupIndex].Number) * float64(number)
+		c.g.ShipGroups[groupIndex].Load = game.F(c.g.ShipGroups[groupIndex].Load.F() / float64(c.g.ShipGroups[groupIndex].Number) * float64(number))
 	}
 	c.g.ShipGroups[groupIndex].Number = number
 }
@@ -228,20 +228,20 @@ func (c *Cache) DisassembleGroup(ri int, groupIndex, quantity uint) error {
 
 	if c.ShipGroup(sgi).CargoType != nil {
 		ct := *c.ShipGroup(sgi).CargoType
-		load := c.ShipGroup(sgi).Load
+		load := c.ShipGroup(sgi).Load.F()
 		switch ct {
 		case game.CargoColonist:
 			if p.Owner == c.g.Race[ri].ID {
 				p = game.UnloadColonists(p, load)
 			}
 		case game.CargoMaterial:
-			p.Material += load
+			p.Material = p.Material.Add(load)
 		case game.CargoCapital:
-			p.Capital += load
+			p.Capital = p.Capital.Add(load)
 		}
 	}
 
-	p.Material += c.ShipGroup(sgi).EmptyMass(st)
+	p.Material = p.Material.Add(c.ShipGroup(sgi).EmptyMass(st))
 
 	c.unsafeDeleteShipGroup(sgi)
 
@@ -300,11 +300,11 @@ func (c *Cache) LoadCargo(ri int, groupIndex uint, ct game.CargoType, ships uint
 		sgi = nsgi
 	}
 	capacity := c.ShipGroup(sgi).CargoCapacity(st)
-	freeShipGroupCargoLoad := capacity - c.ShipGroup(sgi).Load
+	freeShipGroupCargoLoad := capacity - c.ShipGroup(sgi).Load.F()
 	if freeShipGroupCargoLoad == 0 {
 		return e.NewCargoLoadNoSpaceLeftError()
 	}
-	var availableOnPlanet *float64
+	var availableOnPlanet *game.Float
 	switch ct {
 	case game.CargoMaterial:
 		availableOnPlanet = &p.Material
@@ -315,18 +315,18 @@ func (c *Cache) LoadCargo(ri int, groupIndex uint, ct game.CargoType, ships uint
 	default:
 		return e.NewGameStateError("CargoType not accepted: %v", ct)
 	}
-	if quantity > *availableOnPlanet || *availableOnPlanet == 0 {
+	if quantity > float64(*availableOnPlanet) || *availableOnPlanet == 0 {
 		return e.NewCargoLoadNotEnoughError("planet: #%d, %s=%.03f", p.Number, ct, *availableOnPlanet)
 	}
 	toBeLoaded := quantity
 	if quantity == 0 {
-		toBeLoaded = *availableOnPlanet
+		toBeLoaded = float64(*availableOnPlanet)
 	}
 	if toBeLoaded > freeShipGroupCargoLoad {
 		toBeLoaded = freeShipGroupCargoLoad
 	}
-	*availableOnPlanet = *availableOnPlanet - toBeLoaded
+	*availableOnPlanet = (*availableOnPlanet).Add(-toBeLoaded)
-	c.ShipGroup(sgi).Load += toBeLoaded
+	c.ShipGroup(sgi).Load = c.ShipGroup(sgi).Load.Add(toBeLoaded)
 	if c.ShipGroup(sgi).Load > 0 {
 		c.ShipGroup(sgi).CargoType = &ct
 	}
@@ -379,9 +379,9 @@ func (c *Cache) UnloadCargo(ri int, groupIndex uint, ships uint, quantity float6
 
 	toBeUnloaded := quantity
 	if quantity == 0 {
-		toBeUnloaded = c.ShipGroup(sgi).Load
+		toBeUnloaded = c.ShipGroup(sgi).Load.F()
 	}
-	if toBeUnloaded > c.ShipGroup(sgi).Load {
+	if toBeUnloaded > c.ShipGroup(sgi).Load.F() {
 		return e.NewCargoUnoadNotEnoughError("load: %.03f", c.ShipGroup(sgi).Load)
 	}
 
@@ -401,7 +401,7 @@ func (c *Cache) unsafeUnloadCargo(sgi int, q float64) {
 	p := c.MustPlanet(c.ShipGroup(sgi).Destination)
 	ct := *c.ShipGroup(sgi).CargoType
 
-	var availableOnPlanet *float64
+	var availableOnPlanet *game.Float
 	switch ct {
 	case game.CargoColonist:
 		availableOnPlanet = &p.Colonists
@@ -414,9 +414,9 @@ func (c *Cache) unsafeUnloadCargo(sgi int, q float64) {
 	case game.CargoCapital:
 		availableOnPlanet = &p.Capital
 	}
-	*availableOnPlanet += q
+	*availableOnPlanet = (*availableOnPlanet).Add(q)
 
-	c.ShipGroup(sgi).Load -= q // TODO: apply rounding for Load property?
+	c.ShipGroup(sgi).Load = c.ShipGroup(sgi).Load.Add(-q) // TODO: apply rounding for Load property?
 	if c.ShipGroup(sgi).Load == 0 {
 		c.ShipGroup(sgi).CargoType = nil
 	}
@@ -532,7 +532,7 @@ func (c *Cache) breakGroupSafe(ri int, groupIndex uint, newGroupShips uint) (int
 func (c *Cache) breakGroupUnsafe(ri, sgi int, newGroupShips uint) int {
 	newGroup := *c.ShipGroup(sgi)
 	if c.ShipGroup(sgi).CargoType != nil {
-		newGroup.Load = c.ShipGroup(sgi).Load / float64(c.ShipGroup(sgi).Number) * float64(newGroupShips)
+		newGroup.Load = game.F(c.ShipGroup(sgi).Load.F() / float64(c.ShipGroup(sgi).Number) * float64(newGroupShips))
 	}
 	newGroup.Number = newGroupShips
 	c.ShipGroupShipsNumber(sgi, c.ShipGroup(sgi).Number-newGroup.Number)

internal/controller/ship_group_move.go

@@ -40,7 +40,7 @@ func (c *Cache) moveShipGroup(i int, delta float64) {
 	destPlanet := c.MustPlanet(sg.Destination)
 	arrived := false
 	sg.StateInSpace.X, sg.StateInSpace.Y, arrived =
-		util.NextTravelCoord(c.g.Map.Width, c.g.Map.Height, originX, originY, destPlanet.X, destPlanet.Y, delta)
+		util.NextTravelCoord(c.g.Map.Width, c.g.Map.Height, originX, originY, destPlanet.X.F(), destPlanet.Y.F(), delta)
 	if arrived {
 		sg.StateInSpace = nil
 	}

internal/controller/ship_group_send.go

@@ -44,7 +44,7 @@ func (c *Cache) SendGroup(ri int, groupIndex, planetNumber, quantity uint) error
 	if !ok {
 		return e.NewEntityNotExistsError("destination planet #%d", planetNumber)
 	}
-	rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X, p1.Y, p2.X, p2.Y)
+	rangeToDestination := util.ShortDistance(c.g.Map.Width, c.g.Map.Height, p1.X.F(), p1.Y.F(), p2.X.F(), p2.Y.F())
 	if rangeToDestination > c.g.Race[ri].FlightDistance() {
 		return e.NewSendUnreachableDestinationError("range=%.03f", rangeToDestination)
 	}
@@ -81,7 +81,7 @@ func (c *Cache) LaunchShips(sg *game.ShipGroup, destination uint) *game.ShipGrou
 			default:
 				panic("state invalid")
 			}
-			c.g.ShipGroups[i] = LaunchShips(*sg, destination, p.X, p.Y)
+			c.g.ShipGroups[i] = LaunchShips(*sg, destination, p.X.F(), p.Y.F())
 			return &c.g.ShipGroups[i]
 		}
 	}

internal/controller/ship_group_send_test.go

@@ -51,8 +51,8 @@ func TestSendGroup(t *testing.T) {
 	assert.Equal(t, uint(3), c.ShipGroup(3).Number)
 	assert.Equal(t, game.StateLaunched, c.ShipGroup(3).State())
 	assert.NotNil(t, c.ShipGroup(3).StateInSpace)
-	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).X, c.ShipGroup(3).StateInSpace.X)
+	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).X.F(), c.ShipGroup(3).StateInSpace.X)
-	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).Y, c.ShipGroup(3).StateInSpace.Y)
+	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).Y.F(), c.ShipGroup(3).StateInSpace.Y)
 
 	assert.NoError(t, g.SendGroup(Race_0.Name, 4, R0_Planet_0_num, 2)) // un-send 2 of 3
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 4)
@@ -61,8 +61,8 @@ func TestSendGroup(t *testing.T) {
 	assert.Equal(t, uint(1), c.MustShipGroup(Race_0_idx, 4).Number)
 	assert.Equal(t, game.StateLaunched, c.MustShipGroup(Race_0_idx, 4).State())
 	assert.NotNil(t, c.MustShipGroup(Race_0_idx, 4).StateInSpace)
-	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).X, c.MustShipGroup(Race_0_idx, 4).StateInSpace.X)
+	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).X.F(), c.MustShipGroup(Race_0_idx, 4).StateInSpace.X)
-	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).Y, c.MustShipGroup(Race_0_idx, 4).StateInSpace.Y)
+	assert.Equal(t, c.MustPlanet(R0_Planet_0_num).Y.F(), c.MustShipGroup(Race_0_idx, 4).StateInSpace.Y)
 
 	assert.NoError(t, g.SendGroup(Race_0.Name, 4, R0_Planet_0_num, 0)) // un-send the rest 1
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 3)

internal/controller/ship_group_test.go

@@ -142,9 +142,9 @@ func TestBreakGroup(t *testing.T) {
 	assert.NotNil(t, c.ShipGroup(3).FleetID)
 
 	assert.Equal(t, game.CargoColonist.Ref(), c.ShipGroup(0).CargoType)
-	assert.Equal(t, 24.6, number.Fixed3(c.ShipGroup(0).Load))
+	assert.Equal(t, 24.6, number.Fixed3(c.ShipGroup(0).Load.F()))
 	assert.Equal(t, game.CargoColonist.Ref(), c.ShipGroup(3).CargoType)
-	assert.Equal(t, 8.2, number.Fixed3(c.ShipGroup(3).Load))
+	assert.Equal(t, 8.2, number.Fixed3(c.ShipGroup(3).Load.F()))
 
 	// group #1 -> MAX 6 off the fleet
 	assert.NoError(t, g.BreakGroup(Race_0.Name, 1, 6)) // group #1 (0)
@@ -295,48 +295,48 @@ func TestLoadCargo(t *testing.T) {
 
 	// break group and load maximum
 	assert.NoError(t, g.LoadCargo(Race_0.Name, 1, game.CargoMaterial.String(), 2, 0))
-	assert.Equal(t, 58.0, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 58.0, c.MustPlanet(R0_Planet_0_num).Material.F())
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 6)
 	assert.Nil(t, c.ShipGroup(0).CargoType)
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(5).CargoType)
 	assert.Equal(t, uint(9), c.ShipGroup(0).Number)
-	assert.Equal(t, 0.0, c.ShipGroup(0).Load)
+	assert.Equal(t, 0.0, c.ShipGroup(0).Load.F())
 	assert.Equal(t, uint(2), c.ShipGroup(5).Number)
-	assert.Equal(t, 42.0, c.ShipGroup(5).Load)
+	assert.Equal(t, 42.0, c.ShipGroup(5).Load.F())
 
 	// break group and load limited
 	assert.NoError(t, g.LoadCargo(Race_0.Name, 1, game.CargoMaterial.String(), 2, 18))
-	assert.Equal(t, 40.0, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 40.0, c.MustPlanet(R0_Planet_0_num).Material.F())
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 7)
 	assert.Nil(t, c.ShipGroup(0).CargoType)
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(6).CargoType)
 	assert.Equal(t, uint(7), c.ShipGroup(0).Number)
-	assert.Equal(t, 0.0, c.ShipGroup(0).Load)
+	assert.Equal(t, 0.0, c.ShipGroup(0).Load.F())
 	assert.Equal(t, uint(2), c.ShipGroup(6).Number)
-	assert.Equal(t, 18.0, c.ShipGroup(6).Load)
+	assert.Equal(t, 18.0, c.ShipGroup(6).Load.F())
 
 	// add cargo to planet
 	c.PutMaterial(R0_Planet_0_num, 100)
 	// loading all available cargo
 	assert.NoError(t, g.LoadCargo(Race_0.Name, 1, game.CargoMaterial.String(), 0, 0))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 7)
-	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 0.0, c.MustPlanet(R0_Planet_0_num).Material.F())
-	assert.Equal(t, 100.0, c.ShipGroup(0).Load) // free: 131.0
+	assert.Equal(t, 100.0, c.ShipGroup(0).Load.F()) // free: 131.0
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(0).CargoType)
 
 	// add cargo to planet
 	c.PutMaterial(R0_Planet_0_num, 200)
 	assert.NoError(t, g.LoadCargo(Race_0.Name, 1, game.CargoMaterial.String(), 11, 31))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 7)
-	assert.Equal(t, 169.0, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 169.0, c.MustPlanet(R0_Planet_0_num).Material.F())
-	assert.Equal(t, 131.0, c.ShipGroup(0).Load) // free: 100.0
+	assert.Equal(t, 131.0, c.ShipGroup(0).Load.F()) // free: 100.0
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(0).CargoType)
 
 	// load to maximum cargo space left
 	assert.NoError(t, g.LoadCargo(Race_0.Name, 1, game.CargoMaterial.String(), 11, 0))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 7)
-	assert.Equal(t, 153.0, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, 153.0, c.MustPlanet(R0_Planet_0_num).Material.F())
-	assert.Equal(t, 147.0, c.ShipGroup(0).Load) // free: 0.0
+	assert.Equal(t, 147.0, c.ShipGroup(0).Load.F()) // free: 0.0
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(0).CargoType)
 
 	// ship group is full
@@ -413,33 +413,33 @@ func TestUnloadCargo(t *testing.T) {
 
 	// unload MAT on foreign planet / break group
 	assert.NoError(t, g.UnloadCargo(Race_0.Name, 6, 3, 0))
-	assert.Equal(t, 27.273, number.Fixed3(c.MustPlanet(R1_Planet_1_num).Material))
+	assert.Equal(t, 27.273, number.Fixed3(c.MustPlanet(R1_Planet_1_num).Material.F()))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 7)
 	assert.Equal(t, uint(3), c.ShipGroup(6).Number)
 	assert.Nil(t, c.ShipGroup(6).CargoType)
-	assert.Equal(t, 0.0, c.ShipGroup(6).Load)
+	assert.Equal(t, 0.0, c.ShipGroup(6).Load.F())
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(5).CargoType)
 	assert.Equal(t, uint(8), c.ShipGroup(5).Number)
-	assert.Equal(t, 72.727, number.Fixed3(c.ShipGroup(5).Load))
+	assert.Equal(t, 72.727, number.Fixed3(c.ShipGroup(5).Load.F()))
 
 	// unload MAT on foreign planet / break group / limited MAT
 	assert.NoError(t, g.UnloadCargo(Race_0.Name, 6, 3, 20.0))
-	assert.Equal(t, 47.273, number.Fixed3(c.MustPlanet(R1_Planet_1_num).Material))
+	assert.Equal(t, 47.273, number.Fixed3(c.MustPlanet(R1_Planet_1_num).Material.F()))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 8)
 	assert.Equal(t, uint(3), c.ShipGroup(7).Number)
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(7).CargoType)
-	assert.Equal(t, 7.273, number.Fixed3(c.ShipGroup(7).Load))
+	assert.Equal(t, 7.273, number.Fixed3(c.ShipGroup(7).Load.F()))
 	assert.Equal(t, game.CargoMaterial.Ref(), c.ShipGroup(5).CargoType)
 	assert.Equal(t, uint(5), c.ShipGroup(5).Number)
-	assert.Equal(t, 45.455, number.Fixed3(c.ShipGroup(5).Load))
+	assert.Equal(t, 45.455, number.Fixed3(c.ShipGroup(5).Load.F()))
 
 	// unload ALL
 	assert.NoError(t, g.UnloadCargo(Race_0.Name, 1, 0, 0))
-	assert.Equal(t, 100.0, number.Fixed3(c.MustPlanet(R0_Planet_0_num).Colonists))
+	assert.Equal(t, 100.0, number.Fixed3(c.MustPlanet(R0_Planet_0_num).Colonists.F()))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 8)
 	assert.Equal(t, uint(10), c.ShipGroup(0).Number)
 	assert.Nil(t, c.ShipGroup(0).CargoType)
-	assert.Equal(t, 0.0, number.Fixed3(c.ShipGroup(0).Load))
+	assert.Equal(t, 0.0, number.Fixed3(c.ShipGroup(0).Load.F()))
 }
 
 func TestDisassembleGroup(t *testing.T) {
@@ -489,40 +489,40 @@ func TestDisassembleGroup(t *testing.T) {
 		e.GenericErrorText(e.ErrBeakGroupNumberNotEnough))
 
 	groupEmptyMass := c.ShipGroup(4).EmptyMass(c.MustShipClass(Race_0_idx, Race_0_Freighter))
-	planetMAT := c.MustPlanet(R1_Planet_1_num).Material
+	planetMAT := c.MustPlanet(R1_Planet_1_num).Material.F()
-	planetCOL := c.MustPlanet(R1_Planet_1_num).Colonists
+	planetCOL := c.MustPlanet(R1_Planet_1_num).Colonists.F()
 
 	assert.NoError(t, g.DisassembleGroup(Race_0.Name, 5, 0))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 4)
-	assert.Equal(t, planetMAT+groupEmptyMass, c.MustPlanet(R1_Planet_1_num).Material)
+	assert.Equal(t, planetMAT+groupEmptyMass, c.MustPlanet(R1_Planet_1_num).Material.F())
-	assert.Equal(t, planetCOL, c.MustPlanet(R1_Planet_1_num).Colonists)
+	assert.Equal(t, planetCOL, c.MustPlanet(R1_Planet_1_num).Colonists.F())
 
 	groupEmptyMass = c.ShipGroup(3).EmptyMass(c.MustShipClass(Race_0_idx, Race_0_Freighter))
-	groupLoadMAT := c.ShipGroup(3).Load
+	groupLoadMAT := c.ShipGroup(3).Load.F()
-	planetMAT = c.MustPlanet(R1_Planet_1_num).Material
+	planetMAT = c.MustPlanet(R1_Planet_1_num).Material.F()
 	assert.NoError(t, g.DisassembleGroup(Race_0.Name, 4, 0))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 3)
-	assert.Equal(t, planetMAT+groupEmptyMass+groupLoadMAT, c.MustPlanet(R1_Planet_1_num).Material)
+	assert.Equal(t, planetMAT+groupEmptyMass+groupLoadMAT, c.MustPlanet(R1_Planet_1_num).Material.F())
 
 	groupEmptyMass = c.ShipGroup(2).EmptyMass(c.MustShipClass(Race_0_idx, Race_0_Freighter))
-	planetMAT = c.MustPlanet(R0_Planet_0_num).Material
+	planetMAT = c.MustPlanet(R0_Planet_0_num).Material.F()
-	planetCOL = c.MustPlanet(R0_Planet_0_num).Colonists
+	planetCOL = c.MustPlanet(R0_Planet_0_num).Colonists.F()
 	planetPOP := 90.0
 
 	c.PutPopulation(R0_Planet_0_num, planetPOP)
-	assert.Equal(t, planetPOP, c.MustPlanet(R0_Planet_0_num).Population)
+	assert.Equal(t, planetPOP, c.MustPlanet(R0_Planet_0_num).Population.F())
 	var quantity uint = 3
 	groupEmptyMass = groupEmptyMass / float64(c.ShipGroup(2).Number) * float64(quantity)
-	newGroupUnloadedCOL := c.ShipGroup(2).Load / float64(c.ShipGroup(2).Number) * float64(quantity)
+	newGroupUnloadedCOL := c.ShipGroup(2).Load.F() / float64(c.ShipGroup(2).Number) * float64(quantity)
 	expectPOPIncrease := newGroupUnloadedCOL * 8
-	freePOPLeft := c.MustPlanet(R0_Planet_0_num).Size - c.MustPlanet(R0_Planet_0_num).Population
+	freePOPLeft := c.MustPlanet(R0_Planet_0_num).Size.F() - c.MustPlanet(R0_Planet_0_num).Population.F()
 	expectAddedCOL := (expectPOPIncrease - freePOPLeft) / 8
 	expectAddedPOP := freePOPLeft
 	assert.NoError(t, g.DisassembleGroup(Race_0.Name, 3, quantity))
 	assert.Len(t, slices.Collect(c.RaceShipGroups(Race_0_idx)), 3)
-	assert.Equal(t, planetCOL+expectAddedCOL, c.MustPlanet(R0_Planet_0_num).Colonists)
+	assert.Equal(t, planetCOL+expectAddedCOL, c.MustPlanet(R0_Planet_0_num).Colonists.F())
-	assert.Equal(t, planetPOP+expectAddedPOP, c.MustPlanet(R0_Planet_0_num).Population)
+	assert.Equal(t, planetPOP+expectAddedPOP, c.MustPlanet(R0_Planet_0_num).Population.F())
-	assert.Equal(t, planetMAT+groupEmptyMass, c.MustPlanet(R0_Planet_0_num).Material)
+	assert.Equal(t, planetMAT+groupEmptyMass, c.MustPlanet(R0_Planet_0_num).Material.F())
 	assert.Equal(t, uint(7), c.ShipGroup(2).Number)
-	assert.Equal(t, 56.0, c.ShipGroup(2).Load)
+	assert.Equal(t, 56.0, c.ShipGroup(2).Load.F())
 }

internal/controller/ship_group_upgrade.go

@@ -65,7 +65,7 @@ func (c *Cache) UpgradeGroup(ri int, groupIndex uint, techInput string, limitShi
 			if c.g.Race[ri].TechLevel(tech) < limitLevel {
 				return e.NewUpgradeTechLevelInsufficientError("%s=%.03f < %.03f", tech.String(), c.g.Race[ri].TechLevel(tech), limitLevel)
 			}
-			targetLevel[tech] = game.FutureUpgradeLevel(c.g.Race[ri].TechLevel(tech), c.ShipGroup(sgi).TechLevel(tech), limitLevel)
+			targetLevel[tech] = game.FutureUpgradeLevel(c.g.Race[ri].TechLevel(tech), c.ShipGroup(sgi).TechLevel(tech).F(), limitLevel)
 		} else {
 			targetLevel[tech] = game.CurrentUpgradingLevel(c.g.ShipGroups[sgi], tech)
 		}

internal/model/game/group.go

@@ -107,7 +107,7 @@ type ShipGroup struct {
 	Number  uint       `json:"number"`            // Number (quantity) ships of specific ShipType
 
 	CargoType *CargoType `json:"loadType,omitempty"`
-	Load      float64    `json:"load"` // Cargo loaded - "Масса груза"
+	Load      Float      `json:"load"` // Cargo loaded - "Масса груза"
 
 	Tech TechSet `json:"tech"`
 
@@ -117,8 +117,8 @@ type ShipGroup struct {
 	StateUpgrade *InUpgrade `json:"stateUpgrade,omitempty"`
 }
 
-func (sg ShipGroup) TechLevel(t Tech) float64 {
+func (sg ShipGroup) TechLevel(t Tech) Float {
-	return sg.Tech.Value(t)
+	return F(sg.Tech.Value(t))
 }
 
 // TODO: refactor to separate method with *ShipGroup as parameter
@@ -170,19 +170,19 @@ func (sg ShipGroup) Equal(other ShipGroup) bool {
 		sg.TechLevel(TechShields) == other.TechLevel(TechShields) &&
 		sg.TechLevel(TechCargo) == other.TechLevel(TechCargo) &&
 		sg.CargoType == other.CargoType &&
-		sg.Load/float64(sg.Number) == other.Load/float64(other.Number) &&
+		sg.Load.F()/float64(sg.Number) == other.Load.F()/float64(other.Number) &&
 		sg.State() == other.State()
 }
 
 // Грузоподъёмность
 func (sg ShipGroup) CargoCapacity(st *ShipType) float64 {
-	return sg.TechLevel(TechCargo) * (st.Cargo + (st.Cargo*st.Cargo)/20) * float64(sg.Number)
+	return sg.TechLevel(TechCargo).F() * (st.Cargo + (st.Cargo*st.Cargo)/20) * float64(sg.Number)
 }
 
 // Масса перевозимого груза -
 // общее количество единиц груза, деленное на технологический уровень Грузоперевозок
 func (sg ShipGroup) CarryingMass() float64 {
-	return sg.Load / sg.TechLevel(TechCargo)
+	return sg.Load.F() / sg.TechLevel(TechCargo).F()
 }
 
 // Масса группы без учёта груза
@@ -199,7 +199,7 @@ func (sg ShipGroup) FullMass(st *ShipType) float64 {
 // Эффективность двигателя -
 // равна мощности Двигателей, умноженной на технологический уровень блока Двигателей
 func (sg ShipGroup) DriveEffective(st *ShipType) float64 {
-	return st.Drive * sg.TechLevel(TechDrive)
+	return st.Drive * sg.TechLevel(TechDrive).F()
 }
 
 // Корабли перемещаются за один ход на количество световых лет, равное
@@ -209,27 +209,27 @@ func (sg ShipGroup) Speed(st *ShipType) float64 {
 }
 
 func (sg ShipGroup) UpgradeDriveCost(st *ShipType, drive float64) float64 {
-	return (1 - sg.TechLevel(TechDrive)/drive) * 10 * st.Drive
+	return (1 - sg.TechLevel(TechDrive).F()/drive) * 10 * st.Drive
 }
 
 // TODO: test on other values
 func (sg ShipGroup) UpgradeWeaponsCost(st *ShipType, weapons float64) float64 {
-	return (1 - sg.TechLevel(TechWeapons)/weapons) * 10 * st.WeaponsBlockMass()
+	return (1 - sg.TechLevel(TechWeapons).F()/weapons) * 10 * st.WeaponsBlockMass()
 }
 
 func (sg ShipGroup) UpgradeShieldsCost(st *ShipType, shields float64) float64 {
-	return (1 - sg.TechLevel(TechShields)/shields) * 10 * st.Shields
+	return (1 - sg.TechLevel(TechShields).F()/shields) * 10 * st.Shields
 }
 
 func (sg ShipGroup) UpgradeCargoCost(st *ShipType, cargo float64) float64 {
-	return (1 - sg.TechLevel(TechCargo)/cargo) * 10 * st.Cargo
+	return (1 - sg.TechLevel(TechCargo).F()/cargo) * 10 * st.Cargo
 }
 
 // Мощность бомбардировки
 func (sg ShipGroup) BombingPower(st *ShipType) float64 {
-	return (math.Sqrt(st.Weapons*sg.TechLevel(TechWeapons))/10. + 1.) *
+	return (math.Sqrt(st.Weapons*sg.TechLevel(TechWeapons).F())/10. + 1.) *
 		st.Weapons *
-		sg.TechLevel(TechWeapons) *
+		sg.TechLevel(TechWeapons).F() *
 		float64(st.Armament) *
 		float64(sg.Number)
 }

internal/model/game/group_test.go

@@ -228,22 +228,22 @@ func TestShipGroupEqual(t *testing.T) {
 
 	right = *left
 	left.SetTechLevel(game.TechDrive, 1.1)
-	assert.Equal(t, 1.1, left.TechLevel(game.TechDrive))
+	assert.Equal(t, 1.1, left.TechLevel(game.TechDrive).F())
 	assert.False(t, left.Equal(right))
 
 	right = *left
 	left.SetTechLevel(game.TechWeapons, 1.1)
-	assert.Equal(t, 1.1, left.TechLevel(game.TechWeapons))
+	assert.Equal(t, 1.1, left.TechLevel(game.TechWeapons).F())
 	assert.False(t, left.Equal(right))
 
 	right = *left
 	left.SetTechLevel(game.TechShields, 1.1)
-	assert.Equal(t, 1.1, left.TechLevel(game.TechShields))
+	assert.Equal(t, 1.1, left.TechLevel(game.TechShields).F())
 	assert.False(t, left.Equal(right))
 
 	right = *left
 	left.SetTechLevel(game.TechCargo, 1.1)
-	assert.Equal(t, 1.1, left.TechLevel(game.TechCargo))
+	assert.Equal(t, 1.1, left.TechLevel(game.TechCargo).F())
 	assert.False(t, left.Equal(right))
 
 	// non-essential properties
@@ -254,6 +254,6 @@ func TestShipGroupEqual(t *testing.T) {
 
 	// dirty hack to equalize loads
 	left.Number = 5
-	left.Load = right.Load / float64(right.Number) * float64(left.Number)
+	left.Load = game.F(right.Load.F() / float64(right.Number) * float64(left.Number))
 	assert.True(t, left.Equal(right))
 }

internal/model/game/group_upgrade.go

@@ -32,16 +32,16 @@ func BlockUpgradeCost(blockMass, currentBlockTech, targetBlockTech float64) floa
 func GroupUpgradeCost(sg ShipGroup, st ShipType, drive, weapons, shields, cargo float64) UpgradeCalc {
 	uc := &UpgradeCalc{Cost: make(map[Tech]float64)}
 	if drive > 0 {
-		uc.Cost[TechDrive] = BlockUpgradeCost(st.DriveBlockMass(), sg.TechLevel(TechDrive), drive)
+		uc.Cost[TechDrive] = BlockUpgradeCost(st.DriveBlockMass(), sg.TechLevel(TechDrive).F(), drive)
 	}
 	if weapons > 0 {
-		uc.Cost[TechWeapons] = BlockUpgradeCost(st.WeaponsBlockMass(), sg.TechLevel(TechWeapons), weapons)
+		uc.Cost[TechWeapons] = BlockUpgradeCost(st.WeaponsBlockMass(), sg.TechLevel(TechWeapons).F(), weapons)
 	}
 	if shields > 0 {
-		uc.Cost[TechShields] = BlockUpgradeCost(st.ShieldsBlockMass(), sg.TechLevel(TechShields), shields)
+		uc.Cost[TechShields] = BlockUpgradeCost(st.ShieldsBlockMass(), sg.TechLevel(TechShields).F(), shields)
 	}
 	if cargo > 0 {
-		uc.Cost[TechCargo] = BlockUpgradeCost(st.CargoBlockMass(), sg.TechLevel(TechCargo), cargo)
+		uc.Cost[TechCargo] = BlockUpgradeCost(st.CargoBlockMass(), sg.TechLevel(TechCargo).F(), cargo)
 	}
 	return *uc
 }
@@ -69,7 +69,7 @@ func FutureUpgradeLevel(raceLevel, groupLevel, limit float64) float64 {
 }
 
 func UpgradeGroupPreference(sg ShipGroup, st ShipType, tech Tech, v float64) ShipGroup {
-	if v <= 0 || st.BlockMass(tech) == 0 || sg.TechLevel(tech) >= v {
+	if v <= 0 || st.BlockMass(tech) == 0 || sg.TechLevel(tech).F() >= v {
 		return sg
 	}
 	var su InUpgrade
@@ -84,7 +84,7 @@ func UpgradeGroupPreference(sg ShipGroup, st ShipType, tech Tech, v float64) Shi
 		ti = len(su.UpgradeTech) - 1
 	}
 	su.UpgradeTech[ti].Level = v
-	su.UpgradeTech[ti].Cost = BlockUpgradeCost(st.BlockMass(tech), sg.TechLevel(tech), v) * float64(sg.Number)
+	su.UpgradeTech[ti].Cost = BlockUpgradeCost(st.BlockMass(tech), sg.TechLevel(tech).F(), v) * float64(sg.Number)
 
 	sg.StateUpgrade = &su
 	return sg

internal/model/game/planet.go

@@ -7,25 +7,25 @@ import (
 )
 
 type UnidentifiedPlanet struct {
-	X      float64 `json:"x"`
+	X      Float `json:"x"`
-	Y      float64 `json:"y"`
+	Y      Float `json:"y"`
 	Number uint  `json:"number"`
 }
 
 type UninhabitedPlanet struct {
 	UnidentifiedPlanet
-	Size      float64 `json:"size"`
+	Size      Float  `json:"size"`
 	Name      string `json:"name"`
-	Resources float64 `json:"resources"` // R - Ресурсы
+	Resources Float  `json:"resources"` // R - Ресурсы
-	Capital   float64 `json:"capital"`   // CAP $ - Запасы промышленности
+	Capital   Float  `json:"capital"`   // CAP $ - Запасы промышленности
-	Material  float64 `json:"material"`  // MAT M - Запасы ресурсов / сырьё
+	Material  Float  `json:"material"`  // MAT M - Запасы ресурсов / сырьё
 }
 
 type PlanetReport struct {
 	UninhabitedPlanet
-	Industry   float64    `json:"industry"`   // I - Промышленность
+	Industry   Float      `json:"industry"`   // I - Промышленность
-	Population float64    `json:"population"` // P - Население
+	Population Float      `json:"population"` // P - Население
-	Colonists  float64    `json:"colonists"`  // COL C - Количество колонистов
+	Colonists  Float      `json:"colonists"`  // COL C - Количество колонистов
 	Production Production `json:"production"` // TODO: internal/report format
 	// Параметр "L" - Свободный производственный потенциал
 }
@@ -41,13 +41,33 @@ type PlanetReportForeign struct {
 	PlanetReport
 }
 
+func (p *Planet) Mat(v float64) {
+	p.Material = F(v)
+}
+
+func (p *Planet) Pop(v float64) {
+	p.Population = F(v)
+}
+
+func (p *Planet) Col(v float64) {
+	p.Colonists = F(v)
+}
+
+func (p *Planet) Ind(v float64) {
+	p.Industry = F(v)
+}
+
+func (p *Planet) Cap(v float64) {
+	p.Capital = F(v)
+}
+
 func (p Planet) Votes() float64 {
-	return p.Population / 1000.
+	return p.Population.F() / 1000.
 }
 
 // Производственный потенциал
 func (p Planet) ProductionCapacity() float64 {
-	return PlanetProduction(p.Industry, p.Population)
+	return PlanetProduction(p.Industry.F(), p.Population.F())
 }
 
 func PlanetProduction(industry, population float64) float64 {
@@ -64,12 +84,12 @@ func (p *Planet) ProduceIndustry() {
 	production := p.ProductionCapacity()
 	var ind float64
 	if p.Material > 0 {
-		ind = math.Min(production/5, p.Material)
+		ind = math.Min(production/5, p.Material.F())
-		p.Material -= ind
+		p.Mat(p.Material.F() - ind)
 		production -= ind * 5.
 	}
-	ind += (production * p.Resources) / (5.*p.Resources + 1.)
+	ind += (production * p.Resources.F()) / (5.*p.Resources.F() + 1.)
-	p.Industry += ind
+	p.Ind(p.Industry.F() + ind)
 	if p.Industry > p.Population {
 		p.Capital += p.Industry - p.Population
 		p.Industry = p.Population
@@ -78,7 +98,7 @@ func (p *Planet) ProduceIndustry() {
 
 // Производство материалов
 func (p *Planet) ProduceMaterial() {
-	p.Material += p.ProductionCapacity() * p.Resources
+	p.Material = p.Material.Add(p.ProductionCapacity() * p.Resources.F())
 }
 
 // Автоматическое увеличение населения на каждом ходу
@@ -115,10 +135,10 @@ func (p *Planet) UnpackColonists() {
 }
 
 func UnloadColonists(p Planet, v float64) Planet {
-	p.Population += v * 8
+	p.Pop(p.Population.F() + v*8)
 	if p.Population > p.Size {
-		p.Colonists += (p.Population - p.Size) / 8
+		p.Col(p.Colonists.F() + (p.Population.F()-p.Size.F())/8.)
-		p.Population = p.Size
+		p.Pop(p.Size.F())
 	}
 	return p
 }

internal/model/game/planet_test.go

@@ -36,24 +36,24 @@ func TestProduceIndustry(t *testing.T) {
 		},
 	}
 	HW.ProduceIndustry()
-	assert.InDelta(t, 196.078, HW.Capital, 0.0005)
+	assert.InDelta(t, 196.078, HW.Capital.F(), 0.0005)
 
 	HW.Capital = 0
 	HW.Material = 200
 
 	HW.ProduceIndustry()
-	assert.Equal(t, 200., HW.Capital)
+	assert.Equal(t, 200., HW.Capital.F())
-	assert.Equal(t, 0., HW.Material)
+	assert.Equal(t, 0., HW.Material.F())
 
 	DW.ProduceIndustry()
-	assert.InDelta(t, 98.039, DW.Capital, 0.0003)
+	assert.InDelta(t, 98.039, DW.Capital.F(), 0.0003)
 
 	DW.Capital = 0
 	DW.Material = 100
 
 	DW.ProduceIndustry()
-	assert.Equal(t, 100., DW.Capital)
+	assert.Equal(t, 100., DW.Capital.F())
-	assert.Equal(t, 0., DW.Material)
+	assert.Equal(t, 0., DW.Material.F())
 }
 
 func TestProduceMaterial(t *testing.T) {
@@ -67,19 +67,19 @@ func TestProduceMaterial(t *testing.T) {
 			Industry:   1000,
 		},
 	}
-	assert.Equal(t, 0., HW.Material)
+	assert.Equal(t, 0., HW.Material.F())
 
 	HW.ProduceMaterial()
-	assert.Equal(t, 10000., HW.Material)
+	assert.Equal(t, 10000., HW.Material.F())
 
 	HW.Industry = 500
 	HW.Population = 500
 	HW.ProduceMaterial()
-	assert.Equal(t, 15000., HW.Material)
+	assert.Equal(t, 15000., HW.Material.F())
 
 	HW.Population = 1000
 	HW.ProduceMaterial()
-	assert.Equal(t, 21250., HW.Material)
+	assert.Equal(t, 21250., HW.Material.F())
 }
 
 func TestUnpackCapital(t *testing.T) {
@@ -93,28 +93,28 @@ func TestUnpackCapital(t *testing.T) {
 			Industry:   1000,
 		},
 	}
-	assert.Equal(t, 0., HW.Capital)
+	assert.Equal(t, 0., HW.Capital.F())
 
 	HW.UnpackCapital()
-	assert.Equal(t, 1000., HW.Industry)
+	assert.Equal(t, 1000., HW.Industry.F())
-	assert.Equal(t, 0., HW.Capital)
+	assert.Equal(t, 0., HW.Capital.F())
 
 	HW.Capital = 123.
 	HW.UnpackCapital()
-	assert.Equal(t, 1000., HW.Industry)
+	assert.Equal(t, 1000., HW.Industry.F())
-	assert.Equal(t, 123., HW.Capital)
+	assert.Equal(t, 123., HW.Capital.F())
 
 	HW.Industry = 987.
 	HW.UnpackCapital()
-	assert.Equal(t, 1000., HW.Industry)
+	assert.Equal(t, 1000., HW.Industry.F())
-	assert.Equal(t, 110., HW.Capital)
+	assert.Equal(t, 110., HW.Capital.F())
 
 	HW.Population = 876.
 	HW.Industry = 800.
 	HW.UnpackCapital()
-	assert.Equal(t, 876., HW.Population)
+	assert.Equal(t, 876., HW.Population.F())
-	assert.Equal(t, 876., HW.Industry)
+	assert.Equal(t, 876., HW.Industry.F())
-	assert.Equal(t, 34., HW.Capital)
+	assert.Equal(t, 34., HW.Capital.F())
 }
 
 func TestUnpackColonists(t *testing.T) {
@@ -128,26 +128,26 @@ func TestUnpackColonists(t *testing.T) {
 			Industry:   1000,
 		},
 	}
-	assert.Equal(t, 0., HW.Colonists)
+	assert.Equal(t, 0., HW.Colonists.F())
 
 	HW.UnpackColonists()
-	assert.Equal(t, 1000., HW.Population)
+	assert.Equal(t, 1000., HW.Population.F())
-	assert.Equal(t, 0., HW.Colonists)
+	assert.Equal(t, 0., HW.Colonists.F())
 
 	HW.Colonists = 1.05
 	HW.UnpackColonists()
-	assert.Equal(t, 1000., HW.Population)
+	assert.Equal(t, 1000., HW.Population.F())
-	assert.Equal(t, 1.05, HW.Colonists)
+	assert.Equal(t, 1.05, HW.Colonists.F())
 
 	HW.Population = 996.0
 	HW.UnpackColonists()
-	assert.Equal(t, 1000., HW.Population)
+	assert.Equal(t, 1000., HW.Population.F())
-	assert.Equal(t, 0.55, HW.Colonists)
+	assert.Equal(t, 0.55, HW.Colonists.F())
 
 	HW.Population = 0.0
 	HW.UnpackColonists()
-	assert.Equal(t, 4.4, HW.Population)
+	assert.Equal(t, 4.4, HW.Population.F())
-	assert.Equal(t, 0., HW.Colonists)
+	assert.Equal(t, 0., HW.Colonists.F())
 }
 
 func TestProducePopulation(t *testing.T) {
@@ -161,15 +161,15 @@ func TestProducePopulation(t *testing.T) {
 			Industry:   1000,
 		},
 	}
-	assert.Equal(t, 500., HW.Population)
+	assert.Equal(t, 500., HW.Population.F())
-	assert.Equal(t, 0., HW.Colonists)
+	assert.Equal(t, 0., HW.Colonists.F())
 
 	HW.ProducePopulation()
-	assert.Equal(t, 540., HW.Population)
+	assert.Equal(t, 540., HW.Population.F())
-	assert.Equal(t, 0., HW.Colonists)
+	assert.Equal(t, 0., HW.Colonists.F())
 
 	HW.Population = 1000.
 	HW.ProducePopulation()
-	assert.Equal(t, 1000., HW.Population)
+	assert.Equal(t, 1000., HW.Population.F())
-	assert.Equal(t, 10., HW.Colonists)
+	assert.Equal(t, 10., HW.Colonists.F())
 }

internal/model/report/battle.go

@@ -23,11 +23,11 @@ type BattleReportGroup struct {
 	NumberLeft   uint      `json:"numLeft"`
 	ClassName    string    `json:"className"`
 	LoadType     string    `json:"loadType"`
-	LoadQuantity float64   `json:"loadQuantity"`
+	LoadQuantity Float     `json:"loadQuantity"`
-	Drive        float64   `json:"drive"`
+	Drive        Float     `json:"drive"`
-	Weapons      float64   `json:"wwapons"`
+	Weapons      Float     `json:"wwapons"`
-	Shields      float64   `json:"shields"`
+	Shields      Float     `json:"shields"`
-	Cargo        float64   `json:"cargo"`
+	Cargo        Float     `json:"cargo"`
 }
 
 type BattleActionReport struct {

internal/model/report/bombing.go

@@ -9,11 +9,11 @@ type BombingPlanetReport struct {
 	Owner       string    `json:"owner"`
 	Attacker    string    `json:"attacker"`
 	Production  string    `json:"production"`
-	Industry    float64   `json:"industry"`   // I - Промышленность
+	Industry    Float     `json:"industry"`   // I - Промышленность
-	Population  float64   `json:"population"` // P - Население
+	Population  Float     `json:"population"` // P - Население
-	Colonists   float64   `json:"colonists"`  // COL C - Количество колонистов
+	Colonists   Float     `json:"colonists"`  // COL C - Количество колонистов
-	Capital     float64   `json:"capital"`    // CAP $ - Запасы промышленности
+	Capital     Float     `json:"capital"`    // CAP $ - Запасы промышленности
-	Material    float64   `json:"material"`   // MAT M - Запасы ресурсов / сырья
+	Material    Float     `json:"material"`   // MAT M - Запасы ресурсов / сырья
-	AttackPower float64   `json:"attack"`
+	AttackPower Float     `json:"attack"`
 	Wiped       bool      `json:"wiped"`
 }

internal/repo/game.go

@@ -38,18 +38,9 @@ func saveTurn(s Storage, t uint, g *game.Game) error {
 	if err := s.Write(path, g); err != nil {
 		return NewStorageError(err)
 	}
-	// TODO: save reports
-	for i := range g.Race {
-		saveRace(s, g, i)
-	}
-	// TODO: save battles
 	return saveState(s, g) // FIXME: either save it here, or in tre repo controller
 }
 
-func saveRace(s Storage, g *game.Game, i int) {
-
-}
-
 func (r *repo) SaveState(g *game.Game) error {
 	return saveState(r.s, g)
 }