client: Made the tower/units cost gold

client/hud.go

@@ -88,6 +88,7 @@ func NewHUDStore(d *flux.Dispatcher, g *Game) (*HUDStore, error) {
 func (hs *HUDStore) Update() error {
 	hst := hs.GetState().(HUDState)
 	x, y := ebiten.CursorPosition()
+	cp := hs.game.Players.GetCurrentPlayer()
 	// Only send a CursorMove when the curso has actually moved
 	if hst.LastCursorPosition.X != float64(x) || hst.LastCursorPosition.Y != float64(y) {
 		actionDispatcher.CursorMove(x, y)
@@ -99,13 +100,12 @@ func (hs *HUDStore) Update() error {
 			W: 1, H: 1,
 		}
 		// Check what the user has just clicked
-		if hst.CyclopeButton.IsColliding(obj) {
-			cp := hs.game.Players.GetCurrentPlayer()
+		if cp.Gold >= unitGold && hst.CyclopeButton.IsColliding(obj) {
 			//actionDispatcher.SummonUnit("cyclope", cp.ID, cp.LineID, hs.game.Map.GetNextLineID(cp.LineID))
 			actionDispatcher.SummonUnit("cyclope", cp.ID, cp.LineID, cp.LineID)
 			return nil
 		}
-		if hst.SoldierButton.IsColliding(obj) {
+		if cp.Gold >= towerGold && hst.SoldierButton.IsColliding(obj) {
 			actionDispatcher.SelectTower("soldier", x, y)
 			return nil
 		}
@@ -115,7 +115,7 @@ func (hs *HUDStore) Update() error {
 			actionDispatcher.PlaceTower(hst.SelectedTower.Type, int(hst.SelectedTower.X+cs.X), int(hst.SelectedTower.Y+cs.Y), hst.SelectedTower.LineID)
 		}
 	}
-	if inpututil.IsKeyJustPressed(ebiten.KeyT) {
+	if cp.Gold >= towerGold && inpututil.IsKeyJustPressed(ebiten.KeyT) {
 		actionDispatcher.SelectTower("soldier", x, y)
 		return nil
 	}
@@ -157,14 +157,20 @@ func (hs *HUDStore) Update() error {
 func (hs *HUDStore) Draw(screen *ebiten.Image) {
 	hst := hs.GetState().(HUDState)
 	cs := hs.game.Camera.GetState().(CameraState)
+	cp := hs.game.Players.GetCurrentPlayer()
 
 	op := &ebiten.DrawImageOptions{}
 	op.GeoM.Translate(hst.CyclopeButton.X, hst.CyclopeButton.Y)
+	if cp.Gold < unitGold {
+		op.ColorM.Scale(2, 0.5, 0.5, 0.9)
+	}
 	screen.DrawImage(hs.cyclopeFacesetImage.(*ebiten.Image), op)
 
 	op = &ebiten.DrawImageOptions{}
 	op.GeoM.Translate(hst.SoldierButton.X, hst.SoldierButton.Y)
-	if hst.SelectedTower != nil && hst.SelectedTower.Type == "soldier" {
+	if cp.Gold < towerGold {
+		op.ColorM.Scale(2, 0.5, 0.5, 0.9)
+	} else if hst.SelectedTower != nil && hst.SelectedTower.Type == "soldier" {
 		// Once the tower is selected we gray it out
 		op.ColorM.Scale(0.5, 0.5, 0.5, 0.5)
 	}
@@ -182,7 +188,6 @@ func (hs *HUDStore) Draw(screen *ebiten.Image) {
 		screen.DrawImage(hst.SelectedTower.Image.(*ebiten.Image), op)
 	}
 
-	cp := hs.game.Players.GetCurrentPlayer()
 	ps := hs.game.Players.GetState().(PlayersState)
 	ebitenutil.DebugPrintAt(screen, fmt.Sprintf("Lives: %d, Gold: %d, Income: %d (%ds)", cp.Lives, cp.Gold, cp.Income, ps.IncomeTimer), 0, 0)
 	ebitenutil.DebugPrintAt(screen, fmt.Sprintf("(X: %d, Y: %d)", int(hst.LastCursorPosition.X+cs.X), int(hst.LastCursorPosition.Y+cs.Y)), 0, 15)

client/players.go

@@ -118,6 +118,7 @@ func (ps *PlayersStore) Reduce(state, a interface{}) interface{} {
 		tp.Lives += 1
 	case action.SummonUnit:
 		pstate.Players[act.SummonUnit.PlayerID].Income += unitIncome[act.SummonUnit.Type]
+		pstate.Players[act.SummonUnit.PlayerID].Gold -= unitGold
 	case action.IncomeTick:
 		pstate.IncomeTimer -= 1
 		if pstate.IncomeTimer == 0 {
@@ -126,6 +127,8 @@ func (ps *PlayersStore) Reduce(state, a interface{}) interface{} {
 				p.Gold += p.Income
 			}
 		}
+	case action.PlaceTower:
+		pstate.Players[act.PlaceTower.LineID].Gold -= towerGold
 	case action.UnitKilled:
 		pstate.Players[act.UnitKilled.PlayerID].Gold += unitIncome[act.UnitKilled.UnitType]
 	default:

client/towers.go

@@ -16,6 +16,7 @@ var (
 	towerImages         = make(map[string]image.Image)
 	towerRange  float64 = 16 * 2
 	towerDamage         = 1
+	towerGold           = 10
 )
 
 func init() {

client/units.go

@@ -16,7 +16,10 @@ import (
 //go:embed assets/cyclope/Cyclopes.png
 var Cyclopes_png []byte
 
-var unitImages = make(map[string]image.Image)
+var (
+	unitImages = make(map[string]image.Image)
+	unitGold   = 10
+)
 
 func init() {
 	ci, _, err := image.Decode(bytes.NewReader(Cyclopes_png))