adding destroyer

TODO.txt

@@ -175,7 +175,7 @@
 * add gold DONE 11/4/2024
 * add troop/worker slider DONE 11/4/2024
 * create Unit layer DONE 11/9/2024
-* create Unit interface
+* create Unit interface DONE 11/10/2024
 * add destroyer
 * NPC has relations
 * use twitter emojis

resources/images/Destroyer.svg

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   shape-rendering="geometricPrecision"
+   text-rendering="geometricPrecision"
+   image-rendering="optimizeQuality"
+   fill-rule="evenodd"
+   clip-rule="evenodd"
+   viewBox="0 0 500 499.99999"
+   version="1.1"
+   id="svg44"
+   sodipodi:docname="Destroyer.svg"
+   width="500"
+   height="500"
+   inkscape:export-filename="warship-icon.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs48" />
+  <sodipodi:namedview
+     id="namedview46"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     showgrid="false"
+     inkscape:zoom="1.2877175"
+     inkscape:cx="86.587311"
+     inkscape:cy="266.36276"
+     inkscape:window-width="1536"
+     inkscape:window-height="987"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg44" />
+  <path
+     d="M 5.8295895,247.16089 C 65.39826,256.02013 106.88513,262.31167 162.00809,266.85556 l 14.35936,-93.47237 c 5.31364,0 10.70442,-0.0538 16.15307,-0.12099 v -59.97127 h 17.56104 V 172.953 l 12.17026,-0.25542 v -34.25394 h 17.56104 v 33.94474 c 19.59584,-0.26887 39.07597,-0.2151 57.44707,1.0217 11.50485,1.3309 21.51493,6.54696 29.54807,16.89843 7.85955,10.13636 13.56858,24.99139 16.59668,45.68087 l 0.10608,0.73939 0.0193,0.79316 0.58827,39.24146 c 21.23526,0.68562 28.57406,1.27713 50.74475,1.80142 l 97.12095,2.33917 c 1.9673,0.0403 4.58072,2.67524 3.57778,4.98752 l -29.90488,68.79018 c -0.99329,2.28538 -1.64906,4.98752 -3.57778,4.98752 H 50.305987 c -2.237321,0 -43.357737,-96.22828 -48.0541823,-107.50734 -0.7811336,-1.86864 0.5496866,-5.4446 3.5777848,-5.00097 z M 108.38954,189.01793 H 98.5434 l -1.330822,-16.25314 c -0.125367,-1.41156 -0.858282,-2.58114 -1.861219,-2.58114 H 71.531605 c -1.002937,0 -1.735852,1.16958 -1.851576,2.58114 l -1.340464,16.25314 H 59.4385 c -1.40797,0 -2.218034,1.72077 -2.594136,3.60285 l -0.829351,4.18092 -43.12629,-9.90783 -1.475475,10.29769 41.438656,15.6213 -6.422654,32.73482 c 25.989569,3.45497 51.352302,6.42597 76.38715,9.00712 l -11.84237,-61.93402 c -0.35681,-1.90897 -1.20545,-3.60285 -2.58449,-3.60285 z m 283.25255,37.11739 h 9.8365 l 1.34046,-16.25314 c 0.11572,-1.41156 0.839,-2.58114 1.85158,-2.58114 h 23.81975 c 1.02222,0 1.7455,1.16958 1.86122,2.58114 l 1.34046,16.25314 h 8.90107 c 1.42726,0 2.21803,1.72077 2.58449,3.60285 l 0.82935,4.18092 36.30825,-7.34013 1.47547,10.29769 -34.62061,13.0536 4.45536,22.65222 -56.76238,-1.35779 -13.67466,-0.33608 7.85955,-41.15043 c 0.36646,-1.90897 1.16688,-3.60285 2.59414,-3.60285 z m -121.095,-21.68429 h 52.28774 c 4.69644,9.86749 8.04278,19.95009 9.04572,30.28811 h -61.33346 z m -35.60426,-0.0135 h 22.49857 v 31.0275 h -22.49857 z"
+     id="path42"
+     style="stroke-width:1.13861" />
+</svg>

resources/images/DestroyerIconWhite.svg

@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   shape-rendering="geometricPrecision"
+   text-rendering="geometricPrecision"
+   image-rendering="optimizeQuality"
+   fill-rule="evenodd"
+   clip-rule="evenodd"
+   viewBox="0 0 500 499.99999"
+   version="1.1"
+   id="svg44"
+   sodipodi:docname="DestroyerIconWhite.svg"
+   width="500"
+   height="500"
+   inkscape:export-filename="warship-icon.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   inkscape:version="1.2.2 (b0a8486541, 2022-12-01)"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <defs
+     id="defs48" />
+  <sodipodi:namedview
+     id="namedview46"
+     pagecolor="#ffffff"
+     bordercolor="#000000"
+     borderopacity="0.25"
+     inkscape:showpageshadow="2"
+     inkscape:pageopacity="0.0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     showgrid="false"
+     inkscape:zoom="1.2877175"
+     inkscape:cx="86.587311"
+     inkscape:cy="266.36276"
+     inkscape:window-width="1536"
+     inkscape:window-height="987"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg44" />
+  <path
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+     style="stroke-width:1.13861" />
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+     id="path370" />
+  <path
+     style="fill:#ffffff;stroke-width:0.776568"
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+     id="path372" />
+  <path
+     style="fill:#ffffff;stroke-width:0.776568"
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+     id="path374" />
+</svg>

src/client/ClientGame.ts

@@ -1,5 +1,5 @@
 import { Executor } from "../core/execution/ExecutionManager";
-import { Cell, MutableGame, PlayerEvent, PlayerID, MutablePlayer, TileEvent, Player, Game, BoatEvent, Tile, PlayerType, GameMap, Difficulty } from "../core/game/Game";
+import { Cell, MutableGame, PlayerEvent, PlayerID, MutablePlayer, TileEvent, Player, Game, UnitEvent, Tile, PlayerType, GameMap, Difficulty } from "../core/game/Game";
 import { createGame } from "../core/game/GameImpl";
 import { EventBus } from "../core/EventBus";
 import { Config, getConfig } from "../core/configuration/Config";

src/client/Transport.ts

@@ -1,7 +1,7 @@
 import { Config } from "../core/configuration/Config"
 import { EventBus, GameEvent } from "../core/EventBus"
-import { AllianceRequest, AllPlayers, Cell, Player, PlayerID, PlayerType } from "../core/game/Game"
+import { AllianceRequest, AllPlayers, Cell, Player, PlayerID, PlayerType, Tile } from "../core/game/Game"
-import { ClientID, ClientIntentMessageSchema, ClientJoinMessageSchema, ClientLeaveMessageSchema, GameID, Intent, ServerMessage, ServerMessageSchema } from "../core/Schemas"
+import { ClientID, ClientIntentMessageSchema, ClientJoinMessageSchema, ClientLeaveMessageSchema, CreateDestroyerIntent, GameID, Intent, ServerMessage, ServerMessageSchema } from "../core/Schemas"
 import { LocalServer } from "./LocalServer"
 
 
@@ -47,6 +47,12 @@ export class SendBoatAttackIntentEvent implements GameEvent {
     ) { }
 }
 
+export class SendCreateDestroyerIntentEvent implements GameEvent {
+    constructor(
+        public readonly cell: Cell,
+    ) { }
+}
+
 export class SendTargetPlayerIntentEvent implements GameEvent {
     constructor(
         public readonly targetID: PlayerID,
@@ -115,6 +121,7 @@ export class Transport {
         this.eventBus.on(SendDonateIntentEvent, (e) => this.onSendDonateIntent(e))
         this.eventBus.on(SendNukeIntentEvent, (e) => this.onSendNukeIntent(e))
         this.eventBus.on(SendSetTargetTroopRatioEvent, (e) => this.onSendSetTargetTroopRatioEvent(e))
+        this.eventBus.on(SendCreateDestroyerIntentEvent, (e) => this.onCreateDestroyerIntent(e))
     }
 
     connect(onconnect: () => void, onmessage: (message: ServerMessage) => void) {
@@ -314,6 +321,16 @@ export class Transport {
         })
     }
 
+    private onCreateDestroyerIntent(event: SendCreateDestroyerIntentEvent) {
+        this.sendIntent({
+            type: "create_destroyer",
+            clientID: this.clientID,
+            player: this.playerID,
+            x: event.cell.x,
+            y: event.cell.y,
+        })
+    }
+
     private sendIntent(intent: Intent) {
         if (this.isLocal || this.socket.readyState === WebSocket.OPEN) {
             const msg = ClientIntentMessageSchema.parse({

src/client/graphics/layers/UnitLayer.ts

@@ -1,6 +1,6 @@
 import { Colord } from "colord";
 import { Theme } from "../../../core/configuration/Config";
-import { Unit, BoatEvent, Cell, Game, Tile } from "../../../core/game/Game";
+import { Unit, UnitEvent, Cell, Game, Tile, UnitType } from "../../../core/game/Game";
 import { bfs, dist } from "../../../core/Util";
 import { Layer } from "./Layer";
 import { EventBus } from "../../../core/EventBus";
@@ -35,7 +35,7 @@ export class UnitLayer implements Layer {
         this.context.putImageData(this.imageData, 0, 0);
         this.initImageData()
 
-        this.eventBus.on(BoatEvent, e => this.onBoatEvent(e))
+        this.eventBus.on(UnitEvent, e => this.onUnitEvent(e))
     }
 
     initImageData() {
@@ -58,28 +58,47 @@ export class UnitLayer implements Layer {
     }
 
 
-    onBoatEvent(event: BoatEvent) {
+    onUnitEvent(event: UnitEvent) {
-        if (!this.boatToTrail.has(event.boat)) {
+        switch (event.unit.type()) {
-            this.boatToTrail.set(event.boat, new Set<Tile>())
+            case UnitType.TransportShip:
+                this.handleBoatEvent(event)
+                break
+            case UnitType.Destroyer:
+                this.handleDestroyerEvent(event)
+                break
+            default:
+                throw Error(`event for unit ${event.unit.type()} not supported`)
         }
-        const trail = this.boatToTrail.get(event.boat)
+    }
+
+    private handleDestroyerEvent(event: UnitEvent) {
+
+    }
+
+    private handleBoatEvent(event: UnitEvent) {
+        if (!this.boatToTrail.has(event.unit)) {
+            this.boatToTrail.set(event.unit, new Set<Tile>())
+        }
+        const trail = this.boatToTrail.get(event.unit)
         trail.add(event.oldTile)
         bfs(event.oldTile, dist(event.oldTile, 3)).forEach(t => {
             this.clearCell(t.cell())
         })
-        if (event.boat.isActive()) {
+        if (event.unit.isActive()) {
-            bfs(event.boat.tile(), dist(event.boat.tile(), 4)).forEach(
+            bfs(event.unit.tile(), dist(event.unit.tile(), 4)).forEach(
                 t => {
                     if (trail.has(t)) {
-                        this.paintCell(t.cell(), this.theme.territoryColor(event.boat.owner().info()), 150)
+                        this.paintCell(t.cell(), this.theme.territoryColor(event.unit.owner().info()), 150)
                     }
                 }
             )
-            bfs(event.boat.tile(), dist(event.boat.tile(), 2)).forEach(t => this.paintCell(t.cell(), this.theme.borderColor(event.boat.owner().info()), 255))
+            bfs(event.unit.tile(), dist(event.unit.tile(), 2))
-            bfs(event.boat.tile(), dist(event.boat.tile(), 1)).forEach(t => this.paintCell(t.cell(), this.theme.territoryColor(event.boat.owner().info()), 180))
+                .forEach(t => this.paintCell(t.cell(), this.theme.borderColor(event.unit.owner().info()), 255))
+            bfs(event.unit.tile(), dist(event.unit.tile(), 1))
+                .forEach(t => this.paintCell(t.cell(), this.theme.territoryColor(event.unit.owner().info()), 180))
         } else {
             trail.forEach(t => this.clearCell(t.cell()))
-            this.boatToTrail.delete(event.boat)
+            this.boatToTrail.delete(event.unit)
         }
     }
 

src/client/graphics/layers/radial/BuildMenu.ts

@@ -2,8 +2,9 @@ import { LitElement, html, css } from 'lit';
 import { customElement, state } from 'lit/decorators.js';
 import { EventBus } from '../../../../core/EventBus';
 import { Cell, Game, Item, Items, Player } from '../../../../core/game/Game';
-import { SendNukeIntentEvent } from '../../../Transport';
+import { SendCreateDestroyerIntentEvent, SendNukeIntentEvent } from '../../../Transport';
 import nukeIcon from '../../../../../resources/images/NukeIconWhite.svg';
+import destroyerIcon from '../../../../../resources/images/DestroyerIconWhite.svg';
 import goldCoinIcon from '../../../../../resources/images/GoldCoinIcon.svg';
 import { renderNumber } from '../../Utils';
 import { ContextMenuEvent } from '../../../InputHandler';
@@ -16,6 +17,7 @@ interface BuildItem {
 const buildTable: BuildItem[][] = [
     [
         { item: Items.Nuke, icon: nukeIcon },
+        { item: Items.Destroyer, icon: destroyerIcon },
         // { id: 'battleship', name: 'Battleship', icon: '🚢', cost: 500, buildTime: 20 }
     ]
 ];
@@ -146,8 +148,15 @@ export class BuildMenu extends LitElement {
         return this.myPlayer && this.myPlayer.gold() >= item.item.cost;
     }
 
-    public onBuildSelected: (item: BuildItem) => void = () => {
+    public onBuildSelected = (item: BuildItem) => {
-        this.eventBus.emit(new SendNukeIntentEvent(this.myPlayer, this.clickedCell, null))
+        switch (item.item.name) {
+            case "Nuke":
+                this.eventBus.emit(new SendNukeIntentEvent(this.myPlayer, this.clickedCell, null))
+                break
+            case "Destroyer":
+                this.eventBus.emit(new SendCreateDestroyerIntentEvent(this.clickedCell))
+
+        }
         this.hideMenu()
     };
 

src/core/Schemas.ts

@@ -15,6 +15,7 @@ export type Intent = SpawnIntent
     | DonateIntent
     | NukeIntent
     | TargetTroopRatioIntent
+    | CreateDestroyerIntent
 
 export type AttackIntent = z.infer<typeof AttackIntentSchema>
 export type SpawnIntent = z.infer<typeof SpawnIntentSchema>
@@ -26,7 +27,8 @@ export type TargetPlayerIntent = z.infer<typeof TargetPlayerIntentSchema>
 export type EmojiIntent = z.infer<typeof EmojiIntentSchema>
 export type DonateIntent = z.infer<typeof DonateIntentSchema>
 export type NukeIntent = z.infer<typeof NukeIntentSchema>
-export type TargetTroopRatioIntent = z.infer<typeof TargetTroopRatioSchema>
+export type TargetTroopRatioIntent = z.infer<typeof TargetTroopRatioIntentSchema>
+export type CreateDestroyerIntent = z.infer<typeof CreateDestroyerIntentSchema>
 
 export type Turn = z.infer<typeof TurnSchema>
 export type GameConfig = z.infer<typeof GameConfigSchema>
@@ -67,7 +69,7 @@ const EmojiSchema = z.string().refine(
 );
 // Zod schemas
 const BaseIntentSchema = z.object({
-    type: z.enum(['attack', 'spawn', 'boat', 'name', 'targetPlayer', 'emoji', 'nuke', 'troop_ratio']),
+    type: z.enum(['attack', 'spawn', 'boat', 'name', 'targetPlayer', 'emoji', 'nuke', 'troop_ratio', 'create_destroyer']),
     clientID: z.string(),
 });
 
@@ -153,12 +155,19 @@ export const NukeIntentSchema = BaseIntentSchema.extend({
     magnitude: z.number().nullable(),
 })
 
-export const TargetTroopRatioSchema = BaseIntentSchema.extend({
+export const TargetTroopRatioIntentSchema = BaseIntentSchema.extend({
     type: z.literal('troop_ratio'),
     player: z.string(),
     ratio: z.number().min(0).max(1),
 })
 
+export const CreateDestroyerIntentSchema = BaseIntentSchema.extend({
+    type: z.literal('create_destroyer'),
+    player: z.string(),
+    x: z.number(),
+    y: z.number(),
+})
+
 const IntentSchema = z.union([
     AttackIntentSchema,
     SpawnIntentSchema,
@@ -170,7 +179,8 @@ const IntentSchema = z.union([
     EmojiIntentSchema,
     DonateIntentSchema,
     NukeIntentSchema,
-    TargetTroopRatioSchema,
+    TargetTroopRatioIntentSchema,
+    CreateDestroyerIntentSchema,
 ]);
 
 const TurnSchema = z.object({

src/core/execution/DestroyerExecution.ts

@@ -0,0 +1,39 @@
+import { AllPlayers, Cell, Execution, MutableGame, MutablePlayer, MutableUnit, PlayerID, UnitType } from "../game/Game";
+
+export class DestroyerExecution implements Execution {
+
+    private _owner: MutablePlayer
+    private active = true
+    private destroyer: MutableUnit = null
+    private mg: MutableGame = null
+
+    constructor(
+        private playerID: PlayerID,
+        private cell: Cell,
+    ) { }
+
+
+    init(mg: MutableGame, ticks: number): void {
+        this._owner = mg.player(this.playerID)
+        this.mg = mg
+    }
+
+    tick(ticks: number): void {
+        if (this.destroyer == null) {
+            this.destroyer = this._owner.addUnit(UnitType.Destroyer, 0, this.mg.tile(this.cell))
+        }
+    }
+
+    owner(): MutablePlayer {
+        return null
+    }
+
+    isActive(): boolean {
+        return this.active
+    }
+
+    activeDuringSpawnPhase(): boolean {
+        return false
+    }
+
+}

src/core/execution/ExecutionManager.ts

@@ -3,7 +3,7 @@ import { AttackIntent, BoatAttackIntentSchema, GameID, Intent, Turn } from "../S
 import { AttackExecution } from "./AttackExecution";
 import { SpawnExecution } from "./SpawnExecution";
 import { BotSpawner } from "./BotSpawner";
-import { BoatAttackExecution } from "./BoatAttackExecution";
+import { TransportShipExecution } from "./TransportShipExecution";
 import { PseudoRandom } from "../PseudoRandom";
 import { FakeHumanExecution } from "./FakeHumanExecution";
 import Usernames from '../../../resources/Usernames.txt'
@@ -52,7 +52,7 @@ export class Executor {
                 new Cell(intent.x, intent.y)
             )
         } else if (intent.type == "boat") {
-            return new BoatAttackExecution(
+            return new TransportShipExecution(
                 intent.attackerID,
                 intent.targetID,
                 new Cell(intent.x, intent.y),

src/core/execution/FakeHumanExecution.ts

@@ -2,7 +2,7 @@ import { Cell, Execution, MutableGame, MutablePlayer, Player, PlayerInfo, Player
 import { PseudoRandom } from "../PseudoRandom"
 import { and, bfs, dist, simpleHash } from "../Util";
 import { AttackExecution } from "./AttackExecution";
-import { BoatAttackExecution } from "./BoatAttackExecution";
+import { TransportShipExecution } from "./TransportShipExecution";
 import { SpawnExecution } from "./SpawnExecution";
 
 export class FakeHumanExecution implements Execution {
@@ -194,7 +194,7 @@ export class FakeHumanExecution implements Execution {
                 continue
             }
 
-            this.mg.addExecution(new BoatAttackExecution(
+            this.mg.addExecution(new TransportShipExecution(
                 this.player.id(),
                 dst.hasOwner() ? dst.owner().id() : null,
                 dst.cell(),

src/core/execution/NukeExecution.ts

@@ -48,7 +48,9 @@ export class NukeExecution implements Execution {
                 mp.removeTroops(mp.troops() / mp.numTilesOwned())
             }
         }
-        this.mg.boats().filter(b => euclideanDist(this.cell, b.tile().cell()) < this.magnitude + 50).forEach(b => b.delete())
+        this.mg.units()
+            .filter(b => euclideanDist(this.cell, b.tile().cell()) < this.magnitude + 50)
+            .forEach(b => b.delete())
         this.active = false
     }
 

src/core/execution/TransportShipExecution.ts

@@ -4,7 +4,7 @@ import { and, bfs, manhattanDistWrapped, sourceDstOceanShore } from "../Util";
 import { AttackExecution } from "./AttackExecution";
 import { DisplayMessageEvent, MessageType } from "../../client/graphics/layers/EventsDisplay";
 
-export class BoatAttackExecution implements Execution {
+export class TransportShipExecution implements Execution {
 
     private lastMove: number
 
@@ -86,7 +86,7 @@ export class BoatAttackExecution implements Execution {
         this.aStarPre.compute(5)
         this.path = this.aStarPre.reconstructPath()
         if (this.path != null) {
-            this.boat = this.attacker.addBoat(this.troops, this.src, this.target)
+            this.boat = this.attacker.addUnit(UnitType.TransportShip, this.troops, this.src)
         } else {
             console.log('got null path')
             this.active = false
@@ -126,7 +126,9 @@ export class BoatAttackExecution implements Execution {
                 this.target.addTroops(this.troops)
             } else {
                 this.attacker.conquer(this.dst)
-                this.mg.addExecution(new AttackExecution(this.troops, this.attacker.id(), this.targetID, this.dst.cell(), null, false))
+                this.mg.addExecution(
+                    new AttackExecution(this.troops, this.attacker.id(), this.targetID, this.dst.cell(), null, false)
+                )
             }
             this.boat.delete()
             this.active = false

src/core/game/Game.ts

@@ -26,7 +26,8 @@ export enum GameMap {
 }
 
 export enum UnitType {
-    TransportShip
+    TransportShip,
+    Destroyer
 }
 
 export class Item {
@@ -35,6 +36,7 @@ export class Item {
 
 export const Items = {
     Nuke: new Item("Nuke", 1_000_000),
+    Destroyer: new Item("Destroyer", 100_000)
 } as const;
 
 export class Nation {
@@ -226,7 +228,6 @@ export interface MutablePlayer extends Player {
     allianceWith(other: Player): MutableAlliance | null
     breakAlliance(alliance: Alliance): void
     createAllianceRequest(recipient: Player): MutableAllianceRequest
-    addBoat(troops: number, tile: Tile, target: Player | TerraNullius): MutableUnit
     target(other: Player): void
     targets(): MutablePlayer[]
     transitiveTargets(): MutablePlayer[]
@@ -242,6 +243,8 @@ export interface MutablePlayer extends Player {
     setTroops(troops: number): void
     addTroops(troops: number): void
     removeTroops(troops: number): number
+
+    addUnit(type: UnitType, troops: number, tile: Tile): MutableUnit
 }
 
 export interface Game {
@@ -266,7 +269,7 @@ export interface Game {
     nations(): Nation[]
     config(): Config
     displayMessage(message: string, type: MessageType, playerID: PlayerID | null): void
-    boats(): Unit[]
+    units(...types: UnitType[]): Unit[]
 }
 
 export interface MutableGame extends Game {
@@ -275,7 +278,7 @@ export interface MutableGame extends Game {
     players(): MutablePlayer[]
     addPlayer(playerInfo: PlayerInfo, manpower: number): MutablePlayer
     executions(): Execution[]
-    boats(): MutableUnit[]
+    units(...types: UnitType[]): MutableUnit[]
 }
 
 export class TileEvent implements GameEvent {
@@ -286,8 +289,8 @@ export class PlayerEvent implements GameEvent {
     constructor(public readonly player: Player) { }
 }
 
-export class BoatEvent implements GameEvent {
+export class UnitEvent implements GameEvent {
-    constructor(public readonly boat: Unit, public oldTile: Tile) { }
+    constructor(public readonly unit: Unit, public oldTile: Tile) { }
 }
 
 export class AllianceRequestEvent implements GameEvent {

src/core/game/GameImpl.ts

@@ -1,7 +1,7 @@
 import { info } from "console";
 import { Config } from "../configuration/Config";
 import { EventBus } from "../EventBus";
-import { Cell, Execution, MutableGame, Game, MutablePlayer, PlayerEvent, PlayerID, PlayerInfo, Player, TerraNullius, Tile, TileEvent, Unit, BoatEvent as UnitEvent, PlayerType, MutableAllianceRequest, AllianceRequestReplyEvent, AllianceRequestEvent, BrokeAllianceEvent, MutableAlliance, Alliance, AllianceExpiredEvent, Nation } from "./Game";
+import { Cell, Execution, MutableGame, Game, MutablePlayer, PlayerEvent, PlayerID, PlayerInfo, Player, TerraNullius, Tile, TileEvent, Unit, UnitEvent as UnitEvent, PlayerType, MutableAllianceRequest, AllianceRequestReplyEvent, AllianceRequestEvent, BrokeAllianceEvent, MutableAlliance, Alliance, AllianceExpiredEvent, Nation, UnitType } from "./Game";
 import { TerrainMap } from "./TerrainMapLoader";
 import { PlayerImpl } from "./PlayerImpl";
 import { TerraNulliusImpl } from "./TerraNulliusImpl";
@@ -58,8 +58,8 @@ export class GameImpl implements MutableGame {
                 n.strength
             ))
     }
-    boats(): UnitImpl[] {
+    units(...types: UnitType[]): UnitImpl[] {
-        return Array.from(this._players.values()).flatMap(p => p._units)
+        return Array.from(this._players.values()).flatMap(p => p.units(...types))
     }
     nations(): Nation[] {
         return this.nations_

src/core/game/PlayerImpl.ts

@@ -73,8 +73,8 @@ export class PlayerImpl implements MutablePlayer {
     }
 
 
-    addBoat(troops: number, tile: Tile): UnitImpl {
+    addUnit(type: UnitType, troops: number, tile: Tile): UnitImpl {
-        const b = new UnitImpl(UnitType.TransportShip, this.gs, tile, troops, this);
+        const b = new UnitImpl(type, this.gs, tile, troops, this);
         this._units.push(b);
         this.gs.fireUnitUpdateEvent(b, b.tile());
         return b;