Dockerfile

@@ -46,5 +46,5 @@ HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
   CMD node -e "require('http').get('http://localhost:3000/state',r=>process.exit(r.statusCode===200?0:1)).on('error',()=>process.exit(1))"
 
 ENTRYPOINT ["node", "dist/main.js"]
-# Override these to tune the server, e.g. `--name`, `--playerLimit`, `--worldSize`.
+# Override these to tune the server, e.g. `--name`, `--playerLimit`, `--scoreLimit`.
 CMD ["--port", "3000"]

backend/src/create-world.ts

@@ -6,11 +6,11 @@ import { PhysicalContainer } from './physics/containers/physical-container';
 import { evaluateSdf } from './physics/functions/evaluate-sdf';
 import { Physical } from './physics/physicals/physical';
 
-export const createWorld = (objectContainer: PhysicalContainer, worldRadius: number) => {
+export const createWorld = (objectContainer: PhysicalContainer) => {
   const objects: Array<Physical> = [];
   const lights: Array<Physical> = [];
 
-  for (let r = 0; r < worldRadius; r += settings.radiusSteps) {
+  for (let r = 0; r < settings.worldRadius; r += settings.radiusSteps) {
     const circumference = 2 * Math.PI * r;
     const stepCount = circumference * settings.objectsOnCircleLength;
     for (let rad = 0; rad < 2 * Math.PI; rad += (2 * Math.PI) / stepCount) {
@@ -67,8 +67,29 @@ export const createWorld = (objectContainer: PhysicalContainer, worldRadius: num
       }
     }
   }
-  console.info('Generated planet count', objects.length);
+  console.info(`Generated ${objects.length} planets`);
-  console.info('Generated light count', lights.length);
+  console.info(`Generated ${lights.length} light`);
+
+  // Associate each lamp with its NEAREST planet, so a planet can repaint "its"
+  // lamps to the owning team's colour when it flips. Lamps are already placed by
+  // proximity during world-gen, so the nearest planet is the one whose capture
+  // they should advertise. Distances use the planet SDF (negative inside), which
+  // is exactly the "closest planet" metric we want.
+  const planets = objects.filter((o): o is PlanetPhysical => o instanceof PlanetPhysical);
+  lights
+    .filter((l): l is LampPhysical => l instanceof LampPhysical)
+    .forEach((lamp) => {
+      let nearest: PlanetPhysical | undefined;
+      let nearestDistance = Infinity;
+      planets.forEach((planet) => {
+        const distance = planet.distance(lamp.center);
+        if (distance < nearestDistance) {
+          nearestDistance = distance;
+          nearest = planet;
+        }
+      });
+      nearest?.addLamp(lamp);
+    });
 
   [...objects, ...lights].forEach((o) => objectContainer.addObject(o));
 };

backend/src/default-options.ts

@@ -4,8 +4,7 @@ export const defaultOptions: Options = {
   port: 3000,
   name: 'Test server',
   playerLimit: 16,
-  npcCount: 16,
+  npcCount: 8,
   seed: Math.random(),
-  scoreLimit: 1000,
+  scoreLimit: 2500,
-  worldSize: 8000,
 };

backend/src/game-server.ts

@@ -41,7 +41,7 @@ export class GameServer extends CommandReceiver {
   private initialize() {
     const previousPlayers = this.players;
     this.objects = new PhysicalContainer();
-    createWorld(this.objects, this.options.worldSize);
+    createWorld(this.objects);
     this.objects.initialize();
     this.players = new PlayerContainer(
       this.objects,

backend/src/objects/lamp-physical.ts

@@ -32,6 +32,10 @@ export class LampPhysical extends LampBase implements StaticPhysical {
     return this;
   }
 
+  public queueSetLight(color: vec3, lightness: number) {
+    this.remoteCall('setLight', color, lightness);
+  }
+
   public distance(target: vec2): number {
     return vec2.distance(this.center, target);
   }

backend/src/objects/projectile-physical.ts

@@ -53,6 +53,13 @@ export class ProjectilePhysical extends ProjectileBase implements DynamicPhysica
     return !this.isDestroyed;
   }
 
+  public get direction(): vec2 {
+    const direction = vec2.clone(this.velocity);
+    return vec2.length(direction) > 0
+      ? vec2.normalize(direction, direction)
+      : vec2.fromValues(0, -1);
+  }
+
   private moveOutsideOfObject() {
     let wasCollision = true;
     const delta = vec2.scale(

backend/src/options.ts

@@ -5,5 +5,4 @@ export interface Options {
   scoreLimit: number;
   npcCount: number;
   seed: number;
-  worldSize: number;
 }

backend/src/players/player-base.ts

@@ -1,9 +1,17 @@
 import { vec2 } from 'gl-matrix';
-import { CommandReceiver, Circle, PlayerInformation, CharacterTeam } from 'shared';
+import {
+  CommandReceiver,
+  Circle,
+  PlayerInformation,
+  CharacterTeam,
+  Random,
+  settings,
+} from 'shared';
 import { PhysicalContainer } from '../physics/containers/physical-container';
 import { getBoundingBoxOfCircle } from '../physics/functions/get-bounding-box-of-circle';
 import { isCircleIntersecting } from '../physics/functions/is-circle-intersecting';
 import { CharacterPhysical } from '../objects/character-physical';
+import { PlanetPhysical } from '../objects/planet-physical';
 import { PlayerContainer } from './player-container';
 
 export abstract class PlayerBase extends CommandReceiver {
@@ -22,14 +30,14 @@ export abstract class PlayerBase extends CommandReceiver {
     super();
   }
 
-  protected createCharacter(preferredCenter: vec2) {
+  protected createCharacter() {
     this.character = new CharacterPhysical(
       this.playerInfo.name.slice(0, 20),
       this.sumKills,
       this.sumDeaths,
       this.team,
       this.objectContainer,
-      this.findEmptyPositionForPlayer(preferredCenter),
+      this.findEmptyPositionForPlayer(this.findSpawnCenter()),
     );
 
     this.objectContainer.addObject(this.character);
@@ -37,11 +45,34 @@ export abstract class PlayerBase extends CommandReceiver {
 
   public abstract step(deltaTimeInSeconds: number): void;
 
-  protected findEmptyPositionForPlayer(preferredCenter: vec2): vec2 {
+  private findSpawnCenter(): vec2 {
-    if (!preferredCenter) {
+    const planets = this.objectContainer
-      preferredCenter = vec2.create();
+      .findIntersecting(
+        getBoundingBoxOfCircle(new Circle(vec2.create(), settings.worldRadius * 2)),
+      )
+      .filter((o): o is PlanetPhysical => o instanceof PlanetPhysical);
+
+    const friendly = planets.filter((p) => p.team === this.team);
+    const neutral = planets.filter((p) => p.team === CharacterTeam.neutral);
+    const candidates = friendly.length ? friendly : neutral.length ? neutral : planets;
+    if (candidates.length === 0) {
+      return vec2.create();
     }
 
+    const isContested = (planet: PlanetPhysical) =>
+      this.playerContainer.players.some(
+        (p) =>
+          p.team !== this.team &&
+          p.character?.isAlive &&
+          vec2.distance(p.center, planet.center) < settings.spawnSafetyDistance,
+      );
+    const safe = candidates.filter((p) => !isContested(p));
+
+    // candidates is non-empty here, so choose() always returns a planet.
+    return vec2.clone(Random.choose(safe.length ? safe : candidates)!.center);
+  }
+
+  protected findEmptyPositionForPlayer(preferredCenter: vec2): vec2 {
     let rotation = 0;
     let radius = 0;
     for (; ;) {

backend/src/players/player.ts

@@ -42,9 +42,8 @@ export class Player extends PlayerBase {
       (this.aspectRatio = v.aspectRatio),
     [MoveActionCommand.type]: (c: MoveActionCommand) =>
       this.character?.handleMovementAction(c),
-    [PrimaryActionCommand.type]: (c: PrimaryActionCommand) => {
+    [PrimaryActionCommand.type]: (c: PrimaryActionCommand) =>
-      this.character?.shootTowards(c.position);
+      this.character?.shootTowards(c.position, c.charge),
-    },
   };
 
   constructor(
@@ -60,11 +59,7 @@ export class Player extends PlayerBase {
   }
 
   protected createCharacter() {
-    const preferredCenter = this.playerContainer.players.find(
+    super.createCharacter();
-      (p) => p.character?.isAlive && p.team === this.team,
-    )?.center;
-
-    super.createCharacter(preferredCenter ?? vec2.create());
 
     this.objectsPreviouslyInViewArea.push(this.character!);
     this.queueCommandSend(new CreatePlayerCommand(this.character!));
@@ -206,8 +201,4 @@ export class Player extends PlayerBase {
       this.queueCommandSend(new ServerAnnouncement(announcement));
     }
   }
-
-  public destroy() {
-    super.destroy();
-  }
 }

backend/src/react-to-collision.ts

@@ -1,7 +0,0 @@
-import { Command, GameObject } from 'shared';
-
-export class ReactToCollisionCommand extends Command {
-  public constructor(public readonly other: GameObject) {
-    super();
-  }
-}

frontend/package-lock.json

@@ -23,7 +23,7 @@
         "resize-observer-polyfill": "^1.5.1",
         "sass": "^1.100.0",
         "sass-loader": "^17.0.0",
-        "sdf-2d": "^0.7.6",
+        "sdf-2d": "file:../../sdf-2d",
         "shared": "file:../shared",
         "socket.io-client": "^4.8.3",
         "socket.io-msgpack-parser": "^3.0.2",
@@ -36,6 +36,40 @@
         "webpack-dev-server": "^5.2.4"
       }
     },
+    "../../sdf-2d": {
+      "version": "0.7.6",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "gl-matrix": "^3.4.4",
+        "resize-observer-polyfill": "^1.5.1"
+      },
+      "devDependencies": {
+        "@eslint/js": "^10.0.1",
+        "@typescript-eslint/eslint-plugin": "^8.60.1",
+        "@typescript-eslint/parser": "^8.60.1",
+        "eslint": "^10.4.1",
+        "eslint-config-prettier": "^10.1.8",
+        "eslint-plugin-prettier": "^5.5.6",
+        "eslint-plugin-unused-imports": "^4.4.1",
+        "globals": "^17.6.0",
+        "prettier": "^3.8.3",
+        "raw-loader": "^4.0.2",
+        "terser-webpack-plugin": "^5.6.1",
+        "ts-loader": "^9.6.0",
+        "typedoc": "^0.28.19",
+        "typedoc-plugin-extras": "^4.0.1",
+        "typescript": "^6.0.3",
+        "webpack": "^5.107.2",
+        "webpack-cli": "^7.0.3"
+      }
+    },
+    "../../sdf-2d/dist": {
+      "extraneous": true
+    },
+    "../../sdf-2d/lib": {
+      "extraneous": true
+    },
     "../shared": {
       "version": "0.0.0",
       "dev": true,
@@ -5409,15 +5443,8 @@
       }
     },
     "node_modules/sdf-2d": {
-      "version": "0.7.6",
+      "resolved": "../../sdf-2d",
-      "resolved": "https://registry.npmjs.org/sdf-2d/-/sdf-2d-0.7.6.tgz",
+      "link": true
-      "integrity": "sha512-aBJUjwYjWP+/fSvLHH6vhpFyWeSJNCSEHpE0XBX69s2bQlo/NOUr3nq/KuhRZ6A3FeXrGU4lzyurHJ1N8f4rFg==",
-      "dev": true,
-      "license": "ISC",
-      "dependencies": {
-        "gl-matrix": "^3.3.0",
-        "resize-observer-polyfill": "^1.5.1"
-      }
     },
     "node_modules/select-hose": {
       "version": "2.0.0",

frontend/package.json

@@ -37,7 +37,7 @@
     "resize-observer-polyfill": "^1.5.1",
     "sass": "^1.100.0",
     "sass-loader": "^17.0.0",
-    "sdf-2d": "^0.7.6",
+    "sdf-2d": "^0.8.0",
     "shared": "file:../shared",
     "socket.io-client": "^4.8.3",
     "socket.io-msgpack-parser": "^3.0.2",

frontend/src/scripts/charge-indicator.ts

@@ -0,0 +1,58 @@
+import { holdDurationToCharge } from 'shared';
+import { Pointer } from './helper/pointer';
+
+
+export abstract class ChargeIndicator {
+  private static element?: HTMLElement;
+  private static heldSince = 0;
+  private static raf = 0;
+  private static followPointer = false;
+
+  public static begin(x: number, y: number, followPointer = false) {
+    this.end();
+
+    const element = document.createElement('div');
+    element.className = 'charge-ring';
+    element.style.left = `${x}px`;
+    element.style.top = `${y}px`;
+    document.body.appendChild(element);
+
+    this.element = element;
+    this.heldSince = performance.now();
+    this.followPointer = followPointer;
+    this.raf = requestAnimationFrame(this.update);
+  }
+
+  public static end() {
+    if (this.element) {
+      cancelAnimationFrame(this.raf);
+      this.element.parentElement?.removeChild(this.element);
+      this.element = undefined;
+    }
+  }
+
+  private static update = () => {
+    const element = ChargeIndicator.element;
+    if (!element) {
+      return;
+    }
+
+    const charge = holdDurationToCharge(
+      (performance.now() - ChargeIndicator.heldSince) / 1000,
+    );
+    element.style.opacity = charge < 0.12 ? '0' : '1';
+    element.style.background = `conic-gradient(rgba(255, 255, 255, 0.85) ${charge * 360
+      }deg, rgba(255, 255, 255, 0.15) 0deg)`;
+    element.classList.toggle('full', charge >= 1);
+
+    if (ChargeIndicator.followPointer) {
+      const cursor = Pointer.getDisplayPosition();
+      if (cursor) {
+        element.style.left = `${cursor.x}px`;
+        element.style.top = `${cursor.y}px`;
+      }
+    }
+
+    ChargeIndicator.raf = requestAnimationFrame(ChargeIndicator.update);
+  };
+}

frontend/src/scripts/game.ts

@@ -30,10 +30,12 @@ import { CommandSocket } from './commands/command-socket';
 import { PlayerDecision } from './join-form-handler';
 import { GameObjectContainer } from './objects/game-object-container';
 import parser from 'socket.io-msgpack-parser';
-import { BlobShape } from './shapes/blob-shape';
+import { CharacterShape } from './shapes/character-shape';
 import { PlanetShape } from './shapes/planet-shape';
 import { RenderCommand } from './commands/types/render';
 import { StepCommand } from './commands/types/step';
+import { Tutorial } from './tutorial';
+import { Scoreboard } from './scoreboard';
 
 export class Game extends CommandReceiver {
   public gameObjects = new GameObjectContainer(this);
@@ -48,12 +50,11 @@ export class Game extends CommandReceiver {
   private mouseListener: MouseListener;
   private touchListener: TouchListener;
 
-  private declaPlanetCountElement = document.createElement('div');
+  private scoreboard = new Scoreboard();
-  private redPlanetCountElement = document.createElement('div');
   private announcementText = document.createElement('h2');
-  private progressBar = document.createElement('div');
   private arrows: { [id: number]: HTMLElement } = {};
   private socketReceiver!: CommandSocket;
+  private tutorial!: Tutorial;
 
   constructor(
     private readonly playerDecision: PlayerDecision,
@@ -63,9 +64,6 @@ export class Game extends CommandReceiver {
     super();
     this.started = new Promise((r) => (this.resolveStarted = r));
     this.announcementText.className = 'announcement';
-    this.progressBar.className = 'planet-progress';
-    this.progressBar.appendChild(this.declaPlanetCountElement);
-    this.progressBar.appendChild(this.redPlanetCountElement);
 
     this.keyboardListener = new KeyboardListener();
     this.mouseListener = new MouseListener(this.canvas, this);
@@ -78,12 +76,14 @@ export class Game extends CommandReceiver {
     this.socket?.close();
     this.gameObjects = new GameObjectContainer(this);
     this.overlay.innerHTML = '';
+    this.arrows = {};
     this.isEnding = false;
     this.lastAnnouncementText = '';
-    this.overlay.appendChild(this.progressBar);
+    this.overlay.appendChild(this.scoreboard.element);
     this.announcementText.innerText = '';
     this.timeScaling = 1;
     this.overlay.appendChild(this.announcementText);
+    this.tutorial = new Tutorial(this.overlay);
 
     this.socket = io(this.playerDecision.server, {
       reconnectionDelayMax: 10000,
@@ -114,12 +114,17 @@ export class Game extends CommandReceiver {
     });
 
     this.socketReceiver = new CommandSocket(this.socket);
+    // The tutorial listens to the same input streams as the socket, so its
+    // stages clear off the player's own commands without any server involvement.
     this.keyboardListener.clearSubscribers();
     this.keyboardListener.subscribe(this.socketReceiver);
+    this.keyboardListener.subscribe(this.tutorial);
     this.mouseListener.clearSubscribers();
     this.mouseListener.subscribe(this.socketReceiver);
+    this.mouseListener.subscribe(this.tutorial);
     this.touchListener.clearSubscribers();
     this.touchListener.subscribe(this.socketReceiver);
+    this.touchListener.subscribe(this.tutorial);
 
     this.isBetweenGames = false;
 
@@ -189,8 +194,7 @@ export class Game extends CommandReceiver {
         clamp(p.x, arrowPadding, width - arrowPadding),
         clamp(height - p.y, arrowPadding, height - arrowPadding),
       );
-      e.style.transform = `translateX(${p.x}px) translateY(${
+      e.style.transform = `translateX(${p.x}px) translateY(${p.y
-        p.y
         }px) translateX(-50%) translateY(-50%) rotate(${-angle + Math.PI / 2}rad) `;
     });
 
@@ -214,7 +218,7 @@ export class Game extends CommandReceiver {
       this.canvas,
       [
         PlanetShape.descriptor,
-        BlobShape.descriptor,
+        CharacterShape.descriptor,
         {
           ...CircleLight.descriptor,
           shaderCombinationSteps: [0, 1, 2, 4, 8, 16],
@@ -223,10 +227,11 @@ export class Game extends CommandReceiver {
       this.gameLoop.bind(this),
       {
         shadowTraceCount: 16,
-        paletteSize: settings.palette.length,
+        paletteSize: settings.paletteDim.length,
-        colorPalette: settings.palette,
+        colorPalette: settings.paletteDim,
         enableHighDpiRendering: true,
         lightCutoffDistance: settings.lightCutoffDistance,
+        lightOverlapReduction: settings.lightOverlapReduction,
         textures: {
           noiseTexture: {
             source: noiseTexture,
@@ -276,7 +281,9 @@ export class Game extends CommandReceiver {
       this.draw();
     }
 
-    if ((this.timeSinceLastAnnouncement += deltaTime) > 0.5) {
+    if (
+      (this.timeSinceLastAnnouncement += deltaTime) > settings.announcementVisibleSeconds
+    ) {
       this.lastAnnouncementText = '';
     }
 
@@ -292,6 +299,10 @@ export class Game extends CommandReceiver {
       new RenderCommand(this.renderer, this.overlay, shouldChangeLayout),
     );
 
+    this.touchListener.update(deltaTime);
+
+    this.tutorial.step(this.gameObjects);
+
     this.socketReceiver.sendQueuedCommands();
 
     return this.isActive;
@@ -299,10 +310,8 @@ export class Game extends CommandReceiver {
 
   private draw() {
     if (this.lastGameState) {
-      this.declaPlanetCountElement.style.width =
+      // The local player's team is read off the main character once it exists.
-        (this.lastGameState.declaCount / this.lastGameState.limit) * 50 + '%';
+      this.scoreboard.update(this.lastGameState, this.gameObjects.player?.team);
-      this.redPlanetCountElement.style.width =
-        (this.lastGameState.redCount / this.lastGameState.limit) * 50 + '%';
     }
 
     if (this.lastOtherPlayerDirections) {

frontend/src/scripts/helper/pointer.ts

@@ -0,0 +1,13 @@
+import { vec2 } from 'gl-matrix';
+
+export class Pointer {
+  private static displayPosition: vec2 | null = null;
+
+  public static setDisplayPosition(x: number, y: number): void {
+    Pointer.displayPosition = vec2.fromValues(x, y);
+  }
+
+  public static getDisplayPosition(): vec2 | null {
+    return Pointer.displayPosition;
+  }
+}

frontend/src/scripts/join-form-handler.ts

@@ -102,7 +102,7 @@ export class JoinFormHandler {
 
   private removeServer(server: ServerChooserOption) {
     this.servers = this.servers.filter((s) => s !== server);
-    if (this.servers.length) {
+    if (!this.servers.length) {
       this.joinButton.disabled = true;
     }
   }
@@ -143,16 +143,17 @@ class ServerChooserOption {
     this.setServerInfoLabelText();
 
     this.socket = io(url, {
-      reconnection: false,
+      reconnection: true,
+      reconnectionAttempts: 5,
       timeout: 4000,
       parser,
     } as any);
 
-    // `connect_timeout` was removed in socket.io-client v3+; connection
+    this.socket.io.on('reconnect_failed', this.destroy.bind(this));
-    // timeouts now surface through `connect_error` (reconnection is disabled).
+
-    this.socket.on('connect_error', this.destroy.bind(this));
+    this.socket.on('connect', () =>
-    this.socket.on('disconnect', this.destroy.bind(this));
+      this.socket.emit(TransportEvents.SubscribeForServerInfoUpdates),
-    this.socket.emit(TransportEvents.SubscribeForServerInfoUpdates);
+    );
     this.socket.on(
       TransportEvents.ServerInfoUpdate,
       ([playerCount, gameState]: [number, number]) => {

frontend/src/scripts/objects/types/lamp-view.ts

@@ -1,18 +1,36 @@
 import { vec2, vec3 } from 'gl-matrix';
 import { CircleLight } from 'sdf-2d';
-import { CommandExecutors, Id, LampBase } from 'shared';
+import { CommandExecutors, Id, LampBase, mixRgb, settings } from 'shared';
 import { RenderCommand } from '../../commands/types/render';
+import { StepCommand } from '../../commands/types/step';
 
 export class LampView extends LampBase {
   private light: CircleLight;
 
+  private targetColor: vec3;
+  private targetLightness: number;
+
   protected commandExecutors: CommandExecutors = {
     [RenderCommand.type]: this.draw.bind(this),
+    [StepCommand.type]: this.step.bind(this),
   };
 
   constructor(id: Id, center: vec2, color: vec3, lightness: number) {
     super(id, center, color, lightness);
-    this.light = new CircleLight(center, color, lightness);
+    this.light = new CircleLight(vec2.clone(center), vec3.clone(color), lightness);
+    this.targetColor = vec3.clone(color);
+    this.targetLightness = lightness;
+  }
+
+  public setLight(color: vec3, lightness: number) {
+    this.targetColor = vec3.clone(color);
+    this.targetLightness = lightness;
+  }
+
+  private step({ deltaTimeInSeconds }: StepCommand): void {
+    const t = 1 - Math.exp(-deltaTimeInSeconds / settings.lampLerpSeconds);
+    this.light.color = mixRgb(this.light.color, this.targetColor, t);
+    this.light.intensity += (this.targetLightness - this.light.intensity) * t;
   }
 
   private draw({ renderer }: RenderCommand): void {

frontend/src/scripts/objects/types/projectile-view.ts

@@ -48,7 +48,10 @@ export class ProjectileView extends ProjectileBase {
 
     this.center = this.centerExtrapolator.getValue(deltaTimeInSeconds);
     this.light.center = this.center;
-    this.light.intensity = (0.15 * this.strength) / settings.projectileMaxStrength;
+    this.light.intensity = Math.min(
+      0.1,
+      (0.15 * this.strength) / settings.projectileMaxStrength,
+    );
   }
 
   private draw({ renderer }: RenderCommand): void {

frontend/src/scripts/shapes/blob-shape.ts

@@ -1,125 +0,0 @@
-import { mat2d, vec2 } from 'gl-matrix';
-import { Drawable, DrawableDescriptor } from 'sdf-2d';
-import { Circle } from 'shared';
-
-export class BlobShape extends Drawable {
-  public static descriptor: DrawableDescriptor = {
-    sdf: {
-      shader: `
-      uniform vec2 headCenters[BLOB_COUNT];
-      uniform vec2 leftFootCenters[BLOB_COUNT];
-      uniform vec2 rightFootCenters[BLOB_COUNT];
-      uniform float headRadii[BLOB_COUNT];
-      uniform float footRadii[BLOB_COUNT];
-      uniform int blobColors[BLOB_COUNT];
-
-      float blobSmoothMin(float a, float b)
-      {
-        const highp float k = 300.0;
-        highp float res = exp2(-k * a) + exp2(-k * b);
-        return -log2(res) / k;
-      }
-
-      float circleDistance(vec2 circleCenter, float radius, vec2 target) {
-        return distance(target, circleCenter) - radius;
-      }
-
-      float blobMinDistance(vec2 target, out vec4 color) {
-        float minDistance = 1000.0;
-
-        for (int i = 0; i < BLOB_COUNT; i++) {
-          float headDistance = circleDistance(headCenters[i], headRadii[i], target);
-          float leftFootDistance = circleDistance(leftFootCenters[i], footRadii[i], target);
-          float rightFootDistance = circleDistance(rightFootCenters[i], footRadii[i], target);
-
-          float res = min(
-            blobSmoothMin(headDistance, leftFootDistance),
-            blobSmoothMin(headDistance, rightFootDistance)
-          );
-
-          vec2 leftEyeOffset = vec2(-headRadii[i] * 0.35, headRadii[i] * 0.2);
-          vec2 rightEyeOffset = vec2(headRadii[i] * 0.35, headRadii[i] * 0.2);
-
-          float eyeDistance = min(
-            circleDistance(headCenters[i] + rightEyeOffset, headRadii[i] * 0.25, target),
-            circleDistance(headCenters[i] + leftEyeOffset, headRadii[i] * 0.25, target)
-          );
-
-          eyeDistance = max(
-            eyeDistance,
-            -circleDistance(headCenters[i] + leftEyeOffset + vec2(0, -headRadii[i] * 0.175), headRadii[i] * 0.2, target)
-          );
-          
-          eyeDistance = max(
-            eyeDistance,
-            -circleDistance(headCenters[i] + rightEyeOffset + vec2(0, -headRadii[i] * 0.175), headRadii[i] * 0.2, target)
-          );
-
-          if (res < minDistance) {
-            minDistance = res;
-            color = eyeDistance < 0.0 ? vec4(1.0) : readFromPalette(blobColors[i]);
-          }
-        }
-
-        return minDistance;
-      }
-    `,
-      distanceFunctionName: 'blobMinDistance',
-    },
-    propertyUniformMapping: {
-      footRadius: 'footRadii',
-      headRadius: 'headRadii',
-      rightFootCenter: 'rightFootCenters',
-      leftFootCenter: 'leftFootCenters',
-      headCenter: 'headCenters',
-      color: 'blobColors',
-    },
-    uniformCountMacroName: 'BLOB_COUNT',
-    shaderCombinationSteps: [0, 1, 2, 8],
-    empty: new BlobShape(0),
-  };
-
-  protected head!: Circle;
-  protected leftFoot!: Circle;
-  protected rightFoot!: Circle;
-
-  public constructor(private readonly color: number) {
-    super();
-
-    const circle = new Circle(vec2.create(), 200);
-    this.setCircles([circle, circle, circle]);
-  }
-
-  public setCircles([head, leftFoot, rightFoot]: [Circle, Circle, Circle]) {
-    this.head = head;
-    this.leftFoot = leftFoot;
-    this.rightFoot = rightFoot;
-  }
-
-  public minDistance(target: vec2): number {
-    return Math.min(
-      this.head.distance(target),
-      this.leftFoot.distance(target),
-      this.rightFoot.distance(target),
-    );
-  }
-
-  protected getObjectToSerialize(transform2d: mat2d, transform1d: number): any {
-    return {
-      headCenter: vec2.transformMat2d(vec2.create(), this.head.center, transform2d),
-      leftFootCenter: vec2.transformMat2d(
-        vec2.create(),
-        this.leftFoot.center,
-        transform2d,
-      ),
-      rightFootCenter: vec2.transformMat2d(
-        vec2.create(),
-        this.rightFoot.center,
-        transform2d,
-      ),
-      headRadius: this.head.radius * transform1d,
-      footRadius: this.leftFoot.radius * transform1d,
-      color: this.color,
-    };
-  }
-}

frontend/webpack.config.js

@@ -137,12 +137,6 @@ module.exports = (env, argv) => {
     },
     resolve: {
       extensions: ['.ts', '.js', '.json'],
-      alias: {
-        // sdf-2d's package.json `exports` only declares an `import` condition,
-        // which webpack 5 cannot resolve for the production (require) build.
-        // Point straight at its entry to bypass package exports resolution.
-        'sdf-2d$': path.resolve(__dirname, 'node_modules/sdf-2d/lib/main.js'),
-      },
     },
   };
 };

shared/src/commands/types/actions/primary-action.ts

@@ -4,11 +4,14 @@ import { Command } from '../../command';
 
 @serializable
 export class PrimaryActionCommand extends Command {
-  public constructor(public readonly position: vec2) {
+  public constructor(
+    public readonly position: vec2,
+    public readonly charge: number = 0,
+  ) {
     super();
   }
 
   public toArray(): Array<any> {
-    return [this.position];
+    return [this.position, this.charge];
   }
 }

shared/src/commands/types/actions/secondary-action.ts

@@ -1,14 +0,0 @@
-import { vec2 } from 'gl-matrix';
-import { serializable } from '../../../serialization/serializable';
-import { Command } from '../../command';
-
-@serializable
-export class SecondaryActionCommand extends Command {
-  public constructor(public readonly position: vec2) {
-    super();
-  }
-
-  public toArray(): Array<any> {
-    return [this.position];
-  }
-}

shared/src/helper/charge.ts

@@ -0,0 +1,5 @@
+import { clamp01 } from './clamp';
+import { settings } from '../settings';
+
+export const holdDurationToCharge = (heldSeconds: number): number =>
+  clamp01(heldSeconds / settings.chargeShotFullHoldSeconds);

shared/src/main.ts

@@ -16,7 +16,6 @@ export * from './commands/command-generator';
 export * from './commands/types/actions/move-action';
 export * from './commands/types/actions/primary-action';
 export * from './commands/types/actions/set-aspect-ratio-action';
-export * from './commands/types/actions/secondary-action';
 export * from './helper/array';
 export * from './helper/last';
 export * from './helper/rgb';
@@ -24,6 +23,7 @@ export * from './helper/hsl';
 export * from './helper/rgb255';
 export * from './helper/mix-rgb';
 export * from './helper/clamp';
+export * from './helper/charge';
 export * from './helper/calculate-view-area';
 export * from './helper/circle';
 export * from './helper/rectangle';

shared/src/objects/types/character-base.ts

@@ -28,6 +28,10 @@ export class CharacterBase extends GameObject {
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
   public onShoot(strength: number) { }
 
+  public onHitConfirmed() { }
+
+  public onKillConfirmed(victimName?: string, streak?: number) { }
+
   public setHealth(health: number) {
     this.health = health;
   }

shared/src/objects/types/lamp-base.ts

@@ -13,6 +13,11 @@ export class LampBase extends GameObject {
     super(id);
   }
 
+  // Overridden by LampView (which lerps toward the new colour/brightness); a
+  // no-op on the wire base.
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  public setLight(color: vec3, lightness: number) {}
+
   public toArray(): Array<any> {
     const { id, center, color, lightness } = this;
     return [id, center, color, lightness];

shared/src/objects/types/planet-base.ts

@@ -4,6 +4,7 @@ import { settings } from '../../settings';
 import { serializable } from '../../serialization/serializable';
 import { GameObject } from '../game-object';
 import { Id } from '../../communication/id';
+import { CharacterTeam } from './character-base';
 
 @serializable
 export class PlanetBase extends GameObject {
@@ -25,6 +26,8 @@ export class PlanetBase extends GameObject {
 
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
   public generatedPoints(value: number) {}
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
+  public onFlipped(team: CharacterTeam) {}
 
   public static createPlanetVertices(
     center: vec2,