This commit is contained in:
Andras Schmelczer 2026-09-14 21:29:18 +01:00
commit 244620105a
19 changed files with 2080 additions and 518 deletions

View file

@ -22,6 +22,11 @@ export class CommandSocket {
this.commandQueue.push(command);
}
public reset() {
this.commandQueue = [];
this.lastSendMs = -Infinity;
}
public sendQueuedCommands() {
// socket.io-client would buffer emits made while disconnected and flush them before the re-join.
if (!this.socket.connected) {

View file

@ -2,6 +2,18 @@ import { vec2 } from 'gl-matrix';
import type { Command } from 'shared';
import { InputGenerator } from './input-generator';
const movementKeys = new Set([
'KeyW',
'KeyA',
'KeyS',
'KeyD',
'ArrowUp',
'ArrowLeft',
'ArrowDown',
'ArrowRight',
]);
const leapKeys = new Set(['Space', 'ShiftLeft', 'ShiftRight']);
export class KeyboardListener extends InputGenerator {
private keysDown: Set<string> = new Set();
@ -14,18 +26,23 @@ export class KeyboardListener extends InputGenerator {
private keyDownListener = (event: KeyboardEvent) => {
const key = event.code;
if (!movementKeys.has(key) && !leapKeys.has(key)) {
return;
}
event.preventDefault();
if (this.keysDown.has(key)) {
return;
}
this.keysDown.add(key);
if (key === 'Space' || key === 'ShiftLeft' || key === 'ShiftRight') {
if (leapKeys.has(key)) {
this.sendLeap();
} else {
this.sendMovement();
}
this.sendMovement();
};
private keyUpListener = (event: KeyboardEvent) => {
if (this.keysDown.delete(event.code)) {
if (this.keysDown.delete(event.code) && movementKeys.has(event.code)) {
this.sendMovement();
}
};
@ -35,6 +52,12 @@ export class KeyboardListener extends InputGenerator {
this.sendMovement();
};
public resendMovement() {
if ([...this.keysDown].some((key) => movementKeys.has(key))) {
this.sendMovement();
}
}
private sendMovement() {
const down = (...codes: Array<string>) =>
codes.some((c) => this.keysDown.has(c)) ? 1 : 0;

View file

@ -28,6 +28,7 @@ export class MouseListener extends InputGenerator {
private mouseDownListener = (event: MouseEvent) => {
if (event.button === 0) {
this.mouseMoveListener(event);
this.primaryDownAt = performance.now();
ChargeIndicator.begin(event.clientX, event.clientY, true);
}

View file

@ -21,12 +21,13 @@ export class TouchListener extends InputGenerator {
private isJoystickActive = false;
private touchStartPosition = vec2.create();
private movement = vec2.create();
private primaryDownAt: number | null = null;
private gestureTouchId: number | null = null;
private fireDownAt: number | null = null;
private fireTouchId: number | null = null;
private fireButtonCenter = vec2.create();
private fireAim: vec2 | null = null;
constructor(
private readonly target: HTMLElement,
@ -46,6 +47,7 @@ export class TouchListener extends InputGenerator {
this.fireButton.addEventListener('touchstart', this.fireButtonDownListener);
this.fireButton.addEventListener('touchmove', this.fireButtonMoveListener);
this.fireButton.addEventListener('touchend', this.fireButtonUpListener);
this.fireButton.addEventListener('touchcancel', this.fireButtonCancelListener);
this.leapButton.className = 'touch-button leap';
this.leapButton.addEventListener('touchstart', this.leapButtonListener);
@ -54,11 +56,12 @@ export class TouchListener extends InputGenerator {
target.addEventListener('touchmove', this.touchMoveListener);
target.addEventListener('touchend', this.touchEndListener);
target.addEventListener('touchcancel', this.touchCancelListener);
window.addEventListener('blur', this.cancelTouches);
}
private findGestureTouch(list: TouchList): Touch | undefined {
private findTouch(list: TouchList, id: number | null): Touch | undefined {
for (let i = 0; i < list.length; i++) {
if (list[i].identifier === this.gestureTouchId) {
if (list[i].identifier === id) {
return list[i];
}
}
@ -78,7 +81,7 @@ export class TouchListener extends InputGenerator {
),
0,
);
} else {
} else if (this.gestureTouchId === null) {
this.gestureTouchId = touch.identifier;
vec2.set(this.touchStartPosition, touch.clientX, touch.clientY);
this.primaryDownAt = performance.now();
@ -89,7 +92,7 @@ export class TouchListener extends InputGenerator {
private touchMoveListener = (event: TouchEvent) => {
event.preventDefault();
const touch = this.findGestureTouch(event.touches);
const touch = this.findTouch(event.touches, this.gestureTouchId);
if (!touch) {
return;
}
@ -117,16 +120,17 @@ export class TouchListener extends InputGenerator {
if (deltaLength > deadZone) {
vec2.set(delta, delta[0], -delta[1]);
this.sendMove(vec2.normalize(delta, delta));
vec2.normalize(this.movement, delta);
} else {
this.sendMove(vec2.create());
vec2.zero(this.movement);
}
this.sendMove(vec2.clone(this.movement));
};
private touchEndListener = (event: TouchEvent) => {
event.preventDefault();
const touch = this.findGestureTouch(event.changedTouches);
const touch = this.findTouch(event.changedTouches, this.gestureTouchId);
if (!touch) {
return;
}
@ -147,7 +151,7 @@ export class TouchListener extends InputGenerator {
};
private touchCancelListener = (event: TouchEvent) => {
if (!this.findGestureTouch(event.changedTouches)) {
if (!this.findTouch(event.changedTouches, this.gestureTouchId)) {
return;
}
this.gestureTouchId = null;
@ -161,7 +165,30 @@ export class TouchListener extends InputGenerator {
private releaseJoystick() {
this.isJoystickActive = false;
this.joystick.remove();
this.sendMove(vec2.create());
vec2.zero(this.movement);
this.sendMove(vec2.clone(this.movement));
}
public resendMovement() {
if (this.isJoystickActive) {
this.sendMove(vec2.clone(this.movement));
}
}
private cancelTouches = () => {
this.gestureTouchId = null;
this.primaryDownAt = null;
this.cancelFire();
if (this.isJoystickActive) {
this.releaseJoystick();
}
};
private cancelFire() {
this.fireTouchId = null;
this.fireDownAt = null;
this.fireAimLine.style.opacity = '0';
ChargeIndicator.end();
}
private swallowTouch(event: TouchEvent) {
@ -176,6 +203,11 @@ export class TouchListener extends InputGenerator {
private fireButtonDownListener = (event: TouchEvent) => {
this.swallowTouch(event);
const touch = event.changedTouches[0];
if (this.fireTouchId !== null || !touch) {
return;
}
this.fireTouchId = touch.identifier;
this.fireDownAt = performance.now();
const rect = this.fireButton.getBoundingClientRect();
vec2.set(
@ -183,18 +215,16 @@ export class TouchListener extends InputGenerator {
rect.left + rect.width / 2,
rect.top + rect.height / 2,
);
this.fireAim = null;
ChargeIndicator.begin(this.fireButtonCenter[0], this.fireButtonCenter[1]);
};
private fireButtonMoveListener = (event: TouchEvent) => {
this.swallowTouch(event);
const touch = event.targetTouches[0] ?? event.changedTouches[0];
const touch = this.findTouch(event.touches, this.fireTouchId);
if (this.fireDownAt === null || !touch) {
return;
}
const aim = this.aimFromTouch(touch);
this.fireAim = aim;
if (aim) {
this.fireAimLine.style.opacity = '1';
this.fireAimLine.style.transform = `translateY(-50%) rotate(${Math.atan2(-aim[1], aim[0])}rad)`;
@ -215,22 +245,21 @@ export class TouchListener extends InputGenerator {
private fireButtonUpListener = (event: TouchEvent) => {
this.swallowTouch(event);
ChargeIndicator.end();
this.fireAimLine.style.opacity = '0';
if (this.fireDownAt === null) {
const touch = this.findTouch(event.changedTouches, this.fireTouchId);
if (this.fireDownAt === null || !touch) {
return;
}
const charge = chargeHeldSince(this.fireDownAt);
this.fireDownAt = null;
const aim = this.aimFromTouch(touch);
this.cancelFire();
const character = this.game.gameObjects.localPlayer;
if (!character) {
return;
}
const direction = this.fireAim ?? character.facingDirection;
this.fireAim = null;
const direction = aim ?? character.facingDirection;
this.sendPrimary(
vec2.scaleAndAdd(
vec2.create(),
@ -242,10 +271,20 @@ export class TouchListener extends InputGenerator {
);
};
private fireButtonCancelListener = (event: TouchEvent) => {
this.swallowTouch(event);
if (this.findTouch(event.changedTouches, this.fireTouchId)) {
this.cancelFire();
}
};
public update() {
if (!this.fireButton.parentElement) {
this.overlay.append(this.fireButton, this.leapButton);
}
if (this.isJoystickActive && !this.joystick.parentElement) {
this.overlay.appendChild(this.joystick);
}
const character = this.game.gameObjects.localPlayer;
if (character) {
@ -261,13 +300,16 @@ export class TouchListener extends InputGenerator {
this.target.removeEventListener('touchmove', this.touchMoveListener);
this.target.removeEventListener('touchend', this.touchEndListener);
this.target.removeEventListener('touchcancel', this.touchCancelListener);
window.removeEventListener('blur', this.cancelTouches);
this.fireButton.removeEventListener('touchstart', this.fireButtonDownListener);
this.fireButton.removeEventListener('touchmove', this.fireButtonMoveListener);
this.fireButton.removeEventListener('touchend', this.fireButtonUpListener);
this.fireButton.removeEventListener('touchcancel', this.fireButtonCancelListener);
this.leapButton.removeEventListener('touchstart', this.leapButtonListener);
this.fireButton.remove();
this.leapButton.remove();
this.joystick.remove();
}
}

View file

@ -59,8 +59,6 @@ export class Game extends CommandReceiver {
private resolveStarted!: () => void;
private isBetweenGames = false;
private isActive = true;
private isEnding = false;
private timeScaling = 1;
private readonly keyboardListener: KeyboardListener;
private readonly mouseListener: MouseListener;
@ -92,7 +90,7 @@ export class Game extends CommandReceiver {
c.lastLeapClientTimeMs,
c.ackAgeMs,
),
[GameEndCommand.name]: () => (this.isEnding = true),
[GameEndCommand.name]: () => (localCharacterPredictor.enabled = false),
[UpdateMinimap.name]: (c: UpdateMinimap) => (this.lastMinimap = c),
[GameStartCommand.name]: () => this.initialize(),
};
@ -125,6 +123,7 @@ export class Game extends CommandReceiver {
this.socket?.close();
serverTimeline.reset();
localCharacterPredictor.reset();
localCharacterPredictor.enabled = true;
ScreenShake.reset();
this.gameObjects.reset();
this.gameObjects = new GameObjectContainer(this);
@ -132,10 +131,8 @@ export class Game extends CommandReceiver {
this.keystoneArrow = undefined;
this.connectionBanner = undefined;
this.lastMinimap = undefined;
this.isEnding = false;
this.lastAnnouncementText = '';
this.announcementText.innerText = '';
this.timeScaling = 1;
this.overlay.append(
this.scoreboard.element,
this.minimap.element,
@ -172,6 +169,7 @@ export class Game extends CommandReceiver {
serverTimeline.reset();
localCharacterPredictor.reset();
this.gameObjects.reset();
this.socketReceiver.reset();
this.socket.emit(TransportEvents.PlayerJoining, {
...this.playerDecision,
reconnectToken: this.reconnectToken,
@ -220,49 +218,64 @@ export class Game extends CommandReceiver {
}
public async start(): Promise<void> {
this.initialize();
this.resolveStarted();
const noiseTexture = await renderNoise([256, 256], 2, 1);
setFrameTimeMs(0);
try {
this.initialize();
this.resolveStarted();
let renderError: unknown;
const noiseTexture = await renderNoise([256, 256], 2, 1);
await runAnimation(
this.canvas,
[
PlanetShape.descriptor,
CharacterShape.descriptor,
{
...CircleLight.descriptor,
shaderCombinationSteps: [0, 1, 2, 4, 8, 16],
await runAnimation(
this.canvas,
[
PlanetShape.descriptor,
CharacterShape.descriptor,
{
...CircleLight.descriptor,
shaderCombinationSteps: [0, 1, 2, 4, 8, 16],
},
],
(renderer, currentTime, deltaTime) => {
try {
return this.gameLoop(renderer, currentTime, deltaTime);
} catch (error) {
renderError = error;
return false;
}
},
],
this.gameLoop.bind(this),
{
shadowTraceCount: 16,
paletteSize: settings.paletteDim.length,
colorPalette: settings.paletteDim,
enableHighDpiRendering: true,
lightCutoffDistance: settings.lightCutoffDistance,
lightOverlapReduction: settings.lightOverlapReduction,
textures: {
noiseTexture: {
source: noiseTexture,
overrides: {
maxFilter: FilteringOptions.LINEAR,
wrapS: WrapOptions.MIRRORED_REPEAT,
wrapT: WrapOptions.MIRRORED_REPEAT,
{
shadowTraceCount: 16,
paletteSize: settings.paletteDim.length,
colorPalette: settings.paletteDim,
enableHighDpiRendering: true,
lightCutoffDistance: settings.lightCutoffDistance,
lightOverlapReduction: settings.lightOverlapReduction,
textures: {
noiseTexture: {
source: noiseTexture,
overrides: {
maxFilter: FilteringOptions.LINEAR,
wrapS: WrapOptions.MIRRORED_REPEAT,
wrapT: WrapOptions.MIRRORED_REPEAT,
},
},
},
},
},
);
this.socket.close();
this.gameObjects.reset();
this.overlay.innerHTML = '';
this.hideConnectionBanner();
FeedbackHud.reset();
this.keyboardListener.destroy();
this.mouseListener.destroy();
this.touchListener.destroy();
);
if (renderError) {
throw renderError;
}
} finally {
this.resolveStarted();
this.socket?.close();
this.gameObjects.reset();
this.overlay.innerHTML = '';
this.hideConnectionBanner();
FeedbackHud.reset();
this.keyboardListener.destroy();
this.mouseListener.destroy();
this.touchListener.destroy();
}
}
public static rejectionText(reason: JoinRejectionReason): string {
@ -307,6 +320,11 @@ export class Game extends CommandReceiver {
this.isActive = false;
}
public resendMovement() {
this.keyboardListener.resendMovement();
this.touchListener.resendMovement();
}
private gameLoop(
renderer: Renderer,
currentTime: DOMHighResTimeStamp,
@ -333,11 +351,6 @@ export class Game extends CommandReceiver {
this.lastAnnouncementText = '';
}
if (this.isEnding) {
this.timeScaling *= Math.pow(settings.endGameDeltaScaling, deltaTime);
deltaTime /= this.timeScaling;
}
this.gameObjects.step(deltaTime);
this.gameObjects.render(renderer, this.overlay, shouldChangeLayout);
this.touchListener.update();

View file

@ -18,32 +18,25 @@ export const handleFullScreen = (
};
showButtons();
let currentWindowHeight = innerHeight;
const followToggle = () => {
SoundHandler.play(Sounds.click);
showButtons();
currentWindowHeight = innerHeight;
};
document.addEventListener('fullscreenchange', showButtons);
const triggerToggle = async () => {
await (isInFullScreen()
? document.exitFullscreen()
: document.body.requestFullscreen());
followToggle();
try {
await (isInFullScreen()
? document.exitFullscreen()
: document.body.requestFullscreen());
SoundHandler.play(Sounds.click);
} catch {
// The browser may deny fullscreen (for example, when embedded).
}
};
addEventListener('keydown', (e) => {
if (e.key === 'F11') {
triggerToggle();
e.preventDefault();
}
});
addEventListener('resize', () => {
if (isInFullScreen() && currentWindowHeight > innerHeight) {
followToggle();
if (!e.repeat) {
void triggerToggle();
}
}
});

View file

@ -28,7 +28,10 @@ export class LinearInterpolator {
const newest = this.frames.length > 0 ? this.frames[this.frames.length - 1] : null;
const wasCoasting = this.isCoasting;
if (newest && time <= newest.time) {
if (newest && time < newest.time) {
return;
}
if (newest && time === newest.time) {
this.frames[this.frames.length - 1] = {
time: newest.time,
value,

View file

@ -9,11 +9,16 @@ import {
} from 'shared';
import { PlanetView } from '../../objects/types/planet-view';
export type PlanetSnapshot = Pick<
PlanetView,
'id' | 'vertices' | 'snapshotRotation' | 'snapshotRotationSpeed'
>;
// Planets only, re-seeded from the newest snapshot every frame; never dispatches collisions.
export class ClientCharacterWorld implements CharacterWorld {
private surfaces: Array<PlanetBase> = [];
public sync(planets: Array<PlanetView>) {
public sync(planets: Array<PlanetSnapshot>) {
this.surfaces = planets
.map((planet) => {
const surface = new PlanetBase(planet.id, planet.vertices);

View file

@ -11,7 +11,7 @@ import {
feetRadius,
headRadius,
} from 'shared';
import { ClientCharacterWorld } from './client-character-world';
import { ClientCharacterWorld, PlanetSnapshot } from './client-character-world';
import type { PlanetView } from '../../objects/types/planet-view';
import { InputHistory } from './input-history';
@ -25,6 +25,18 @@ export const setFrameTimeMs = (timeMs: number): void => {
export const clientTimeMs = (): number => frameTimeMs;
const maxReplayMs = 400;
const correctionSeconds = 0.08;
const snapDistance = 1500;
interface ReplaySnapshot {
pose: { head: Circle; leftFoot: Circle; rightFoot: Circle };
movement: CharacterMovementSnapshot;
anchorMs: number;
leapAckMs: number;
strength: number;
planets: Array<PlanetSnapshot>;
horizonState?: CharacterMovementState;
}
const upwards = vec2.fromValues(0, 1);
@ -37,6 +49,7 @@ const makeBody = (center: vec2, radius: number, normal: vec2): PhysicsBody => ({
});
export class LocalCharacterPredictor {
public enabled = true;
private readonly inputHistory = new InputHistory();
private readonly world = new ClientCharacterWorld();
@ -48,6 +61,9 @@ export class LocalCharacterPredictor {
private currentStrength = settings.playerMaxStrength;
private alive = true;
private previousSnapshot?: ReplaySnapshot;
private lastUpdateMs?: number;
private readonly correction = vec2.create();
private renderHead = new Circle(vec2.create(), headRadius);
private renderLeftFoot = new Circle(vec2.create(), feetRadius);
@ -75,10 +91,7 @@ export class LocalCharacterPredictor {
lastLeapClientTimeMs: number,
ackAgeMs = 0,
): void {
const anchor = clientTimeMs + Math.max(0, ackAgeMs);
if (this.replayAnchorMs === undefined || anchor > this.replayAnchorMs) {
this.replayAnchorMs = anchor;
}
this.replayAnchorMs = clientTimeMs + Math.max(0, ackAgeMs);
this.movement = movement;
this.lastLeapAckMs = lastLeapClientTimeMs;
}
@ -114,6 +127,9 @@ export class LocalCharacterPredictor {
this.movement = undefined;
this.currentStrength = settings.playerMaxStrength;
this.alive = true;
this.previousSnapshot = undefined;
this.lastUpdateMs = undefined;
vec2.zero(this.correction);
}
public get canPredict(): boolean {
@ -132,29 +148,77 @@ export class LocalCharacterPredictor {
}
public update(planets: Array<PlanetView>): boolean {
if (!this.alive || !this.canPredict || this.isAnimatingInOrOut) {
if (!this.enabled || !this.alive || !this.canPredict || this.isAnimatingInOrOut) {
this.previousSnapshot = undefined;
this.lastUpdateMs = undefined;
vec2.zero(this.correction);
return false;
}
this.world.sync(planets);
const predicted = this.simulate();
const now = clientTimeMs();
const deltaSeconds =
this.lastUpdateMs === undefined ? 0 : (now - this.lastUpdateMs) / 1000;
vec2.scale(
this.correction,
this.correction,
Math.exp(-deltaSeconds / correctionSeconds),
);
const snapshot: ReplaySnapshot =
this.previousSnapshot && this.previousSnapshot.pose === this.authoritative
? this.previousSnapshot
: {
pose: this.authoritative!,
movement: this.movement!,
anchorMs: this.replayAnchorMs!,
leapAckMs: this.lastLeapAckMs,
strength: this.currentStrength,
planets: planets.map(
({ id, vertices, snapshotRotation, snapshotRotationSpeed }) => ({
id,
vertices,
snapshotRotation,
snapshotRotationSpeed,
}),
),
};
const predicted = this.simulate(snapshot);
vec2.copy(this.renderHead.center, predicted.head.center);
this.renderHead.radius = predicted.head.radius;
vec2.copy(this.renderLeftFoot.center, predicted.leftFoot.center);
this.renderLeftFoot.radius = predicted.leftFoot.radius;
vec2.copy(this.renderRightFoot.center, predicted.rightFoot.center);
this.renderRightFoot.radius = predicted.rightFoot.radius;
if (this.previousSnapshot && this.previousSnapshot.pose !== snapshot.pose) {
// Compare both snapshots at the same instant: smooth only the correction,
// leaving fresh input and ordinary movement immediate.
const previous = this.simulate(this.previousSnapshot);
vec2.add(
this.correction,
this.correction,
vec2.subtract(vec2.create(), previous.head.center, predicted.head.center),
);
if (vec2.length(this.correction) > snapDistance) {
vec2.zero(this.correction);
}
}
for (const [render, body] of [
[this.renderHead, predicted.head],
[this.renderLeftFoot, predicted.leftFoot],
[this.renderRightFoot, predicted.rightFoot],
]) {
vec2.add(render.center, body.center, this.correction);
render.radius = body.radius;
}
this.previousSnapshot = snapshot;
this.lastUpdateMs = now;
return true;
}
private simulate(): CharacterMovementState {
const auth = this.authoritative!;
const movement = this.movement!;
private simulate(snapshot: ReplaySnapshot): CharacterMovementState {
if (snapshot.horizonState) {
return snapshot.horizonState;
}
this.world.sync(snapshot.planets);
const { pose: auth, movement } = snapshot;
const now = clientTimeMs();
const startMs = Math.max(this.replayAnchorMs!, now - maxReplayMs);
const windowMs = Math.max(0, now - startMs);
const startMs = snapshot.anchorMs;
const windowMs = Math.min(maxReplayMs, Math.max(0, now - startMs));
const steps = Math.floor(windowMs / stepMs);
const partialStep = (windowMs - steps * stepMs) / stepMs;
@ -176,39 +240,32 @@ export class LocalCharacterPredictor {
bodyVelocity: vec2.fromValues(movement.bodyVelocity[0], movement.bodyVelocity[1]),
};
const cooldownMs = settings.leapCooldownSeconds * 1000;
let availableStrength = this.currentStrength;
let lastLeapMs = -Infinity;
let availableStrength = snapshot.strength;
let cooldown = movement.leapCooldownRemaining ?? 0;
let t = startMs;
for (let i = 0; i < steps; i++) {
const input = this.inputHistory.directionAt(t);
this.world.advance(stepSeconds);
tickPlanetDetachment(state, stepSeconds);
stepCharacterMovement(state, this.world, input, stepSeconds);
for (let i = 0; i < steps + (partialStep > 0 ? 1 : 0); i++) {
const fraction = i < steps ? 1 : partialStep;
const from =
fraction < 1
? [state.head, state.leftFoot, state.rightFoot].map((body) =>
vec2.clone(body.center),
)
: undefined;
for (const leapMs of this.leapHistory) {
if (
leapMs >= t &&
leapMs < t + stepMs &&
leapMs > this.lastLeapAckMs &&
leapMs < t + stepMs * fraction &&
leapMs > snapshot.leapAckMs &&
state.currentPlanet &&
leapMs - lastLeapMs >= cooldownMs &&
cooldown <= 0 &&
availableStrength >= settings.leapStrengthCost
) {
applyLeapImpulse(state, this.inputHistory.directionAt(leapMs));
availableStrength -= settings.leapStrengthCost;
lastLeapMs = leapMs;
cooldown = settings.leapCooldownSeconds;
}
}
t += stepMs;
}
if (partialStep > 0) {
const from = [state.head, state.leftFoot, state.rightFoot].map((b) =>
vec2.clone(b.center),
);
this.world.advance(stepSeconds);
tickPlanetDetachment(state, stepSeconds);
stepCharacterMovement(
@ -217,11 +274,22 @@ export class LocalCharacterPredictor {
this.inputHistory.directionAt(t),
stepSeconds,
);
[state.head, state.leftFoot, state.rightFoot].forEach((body, i) =>
vec2.lerp(body.center, from[i], body.center, partialStep),
cooldown = Math.max(0, cooldown - stepSeconds);
availableStrength = Math.min(
settings.playerMaxStrength,
availableStrength + settings.playerStrengthRegenerationPerSeconds * stepSeconds,
);
if (from) {
[state.head, state.leftFoot, state.rightFoot].forEach((body, index) =>
vec2.lerp(body.center, from[index], body.center, fraction),
);
}
t += stepMs;
}
if (windowMs === maxReplayMs) {
snapshot.horizonState = state;
}
return state;
}
}

View file

@ -9,7 +9,7 @@ const resyncSeconds = 0.3;
class ServerTimeline {
private cursor?: number;
private newestSnapshotTime?: number;
private sinceNewestSnapshot = 0;
private newestReceivedAtMs = 0;
public snapshotTime = 0;
public get renderTime(): number {
@ -20,7 +20,7 @@ class ServerTimeline {
this.snapshotTime = timestamp;
if (this.newestSnapshotTime === undefined || timestamp > this.newestSnapshotTime) {
this.newestSnapshotTime = timestamp;
this.sinceNewestSnapshot = 0;
this.newestReceivedAtMs = performance.now();
}
}
@ -29,10 +29,9 @@ class ServerTimeline {
return;
}
this.sinceNewestSnapshot += deltaTimeInSeconds;
const target =
this.newestSnapshotTime +
this.sinceNewestSnapshot -
(performance.now() - this.newestReceivedAtMs) / 1000 -
settings.interpolationDelaySeconds;
if (this.cursor === undefined || Math.abs(target - this.cursor) > resyncSeconds) {
@ -40,18 +39,16 @@ class ServerTimeline {
return;
}
const rate = clamp(
1 + (target - this.cursor) * rateGain,
1 - maxRateAdjustment,
1 + maxRateAdjustment,
);
this.cursor += deltaTimeInSeconds * rate;
this.cursor += deltaTimeInSeconds;
this.cursor +=
deltaTimeInSeconds *
clamp((target - this.cursor) * rateGain, -maxRateAdjustment, maxRateAdjustment);
}
public reset() {
this.cursor = undefined;
this.newestSnapshotTime = undefined;
this.sinceNewestSnapshot = 0;
this.newestReceivedAtMs = 0;
this.snapshotTime = 0;
}
}

View file

@ -0,0 +1,16 @@
export function loadStoredValue(key: string): unknown {
try {
const stored = localStorage.getItem(key);
return stored === null ? undefined : JSON.parse(stored);
} catch {
return undefined;
}
}
export function saveStoredValue(key: string, value: unknown): void {
try {
localStorage.setItem(key, JSON.stringify(value));
} catch {
// Preferences still apply for this visit when browser storage is unavailable.
}
}

View file

@ -16,12 +16,8 @@ export class JoinFormHandler {
private readonly decision: Promise<PlayerDecision>;
private readonly pollServersTimer: ReturnType<typeof setInterval>;
private servers: Array<ServerChooserOption> = [];
private keyUpListener = (e: KeyboardEvent) => {
if (e.key === 'Enter' && !this.joinButton.disabled) {
this.form.requestSubmit();
}
};
private readonly pendingRequests = new Map<string, AbortController>();
private destroyed = false;
constructor(
private readonly form: HTMLFormElement,
@ -33,14 +29,16 @@ export class JoinFormHandler {
this.decision = new Promise((resolve) => {
form.onsubmit = (e) => {
e.preventDefault();
if (this.joinButton.disabled) {
return;
}
SoundHandler.play(Sounds.click);
const data = new FormData(form);
this.destroy();
resolve({ name: String(data.get('name')), server: String(data.get('server')) });
};
});
this.decision.then(() => this.destroy());
addEventListener('keyup', this.keyUpListener);
this.pollServersTimer = setInterval(() => this.loadServers(), pollInterval);
this.loadServers();
}
@ -49,49 +47,60 @@ export class JoinFormHandler {
return this.decision;
}
private destroy() {
removeEventListener('keyup', this.keyUpListener);
public destroy() {
this.destroyed = true;
this.form.onsubmit = null;
clearInterval(this.pollServersTimer);
this.pendingRequests.forEach((controller) => controller.abort());
this.servers.forEach((s) => s.destroy());
}
private loadServers() {
servers
.filter((url) => !this.servers.some((s) => s.url === url))
.forEach(async (url) => {
const controller = new AbortController();
setTimeout(() => controller.abort(), pollInterval * 0.8);
for (const url of servers) {
if (!this.pendingRequests.has(url) && !this.servers.some((s) => s.url === url)) {
void this.loadServer(url);
}
}
}
let content: ServerInformation;
try {
const response = await fetch(url + serverInformationEndpoint, {
signal: controller.signal,
});
if (!response.ok) {
return;
}
content = await response.json();
} catch {
return;
}
if (!this.servers.some((s) => s.url === url)) {
const server = new ServerChooserOption(
content,
url,
(s) => this.removeServer(s),
this.servers.length === 0,
);
this.servers.push(server);
this.joinButton.disabled = false;
this.container.appendChild(server.element);
}
private async loadServer(url: string) {
const controller = new AbortController();
this.pendingRequests.set(url, controller);
const timeout = setTimeout(() => controller.abort(), pollInterval * 0.8);
try {
const response = await fetch(url + serverInformationEndpoint, {
signal: controller.signal,
});
if (!response.ok) {
return;
}
const content: ServerInformation = await response.json();
if (this.destroyed) {
return;
}
const server = new ServerChooserOption(
content,
url,
(s) => this.removeServer(s),
this.servers.length === 0,
);
this.servers.push(server);
this.joinButton.disabled = false;
this.container.appendChild(server.element);
} catch {
// Unavailable servers are retried on the next poll.
} finally {
clearTimeout(timeout);
this.pendingRequests.delete(url);
}
}
private removeServer(server: ServerChooserOption) {
this.servers = this.servers.filter((s) => s !== server);
this.joinButton.disabled = this.servers.length === 0;
if (this.servers.length && !this.servers.some((s) => s.input.checked)) {
this.servers[0].input.checked = true;
}
}
}
@ -107,9 +116,11 @@ const roundCompletionTexts = [
class ServerChooserOption {
public readonly element = document.createElement('div');
public readonly input = document.createElement('input');
private readonly serverNameElement = document.createElement('span');
private readonly completionElement = document.createElement('span');
private readonly socket: Socket;
private readonly reconnectFailedListener = () => this.destroy();
constructor(
private readonly content: ServerInformation,
@ -117,7 +128,7 @@ class ServerChooserOption {
private readonly onDestroy: (v: ServerChooserOption) => unknown,
isFirst: boolean,
) {
const input = document.createElement('input');
const input = this.input;
input.required = true;
input.type = 'radio';
input.id = input.value = url;
@ -144,7 +155,7 @@ class ServerChooserOption {
parser,
} as any);
this.socket.io.on('reconnect_failed', () => this.destroy());
this.socket.io.on('reconnect_failed', this.reconnectFailedListener);
this.socket.on('connect', () =>
this.socket.emit(TransportEvents.SubscribeForServerInfoUpdates),
);
@ -159,6 +170,7 @@ class ServerChooserOption {
}
public destroy() {
this.socket.io.off('reconnect_failed', this.reconnectFailedListener);
this.socket.close();
this.element.remove();
this.onDestroy(this);

View file

@ -27,14 +27,16 @@ export class LandingPageBackground {
};
constructor(canvas: HTMLCanvasElement) {
this.renderer = new Promise((r) => (this.resolveRenderer = r));
this.start(canvas);
this.renderer = new Promise((resolve, reject) => {
this.resolveRenderer = resolve;
void this.start(canvas).catch(reject);
});
}
private async start(canvas: HTMLCanvasElement): Promise<void> {
const noiseTexture = await renderNoise([256, 256], 1.2, 2);
runAnimation(
await runAnimation(
canvas,
[
{ ...PlanetShape.descriptor, shaderCombinationSteps: [0, 1, 2] },

View file

@ -8,8 +8,8 @@ import {
DeleteObjectsCommand,
Id,
PropertyUpdatesForObjects,
RemoteCall,
RemoteCallsForObjects,
settings,
UpdatePropertyCommand,
} from 'shared';
import { FeedbackHud } from '../feedback-hud';
@ -34,6 +34,8 @@ export class GameObjectContainer extends CommandReceiver {
private deleteAt = new Map<Id, number>();
private awaitingCreateStamp: Array<Id> = [];
private awaitingDeleteStamp: Array<Id> = [];
private remoteCalls: Array<{ object: View; calls: Array<RemoteCall>; at?: number }> =
[];
protected commandExecutors: CommandExecutors = {
[CreatePlayerCommand.name]: (c: CreatePlayerCommand) => {
@ -41,6 +43,7 @@ export class GameObjectContainer extends CommandReceiver {
this.player.isMainCharacter = true;
this.addObject(this.player);
localCharacterPredictor.reset();
this.game.resendMovement();
FeedbackHud.hideElimination();
this.wasLocalPlayerAlive = true;
},
@ -52,9 +55,14 @@ export class GameObjectContainer extends CommandReceiver {
}),
[RemoteCallsForObjects.name]: (c: RemoteCallsForObjects) =>
c.callsForObjects.forEach((c) =>
this.objects.get(c.id)?.processRemoteCalls(c.calls),
),
c.callsForObjects.forEach(({ id, calls }) => {
const object = this.objects.get(id);
if (object === this.player) {
object?.processRemoteCalls(calls);
} else if (object) {
this.remoteCalls.push({ object, calls });
}
}),
[PropertyUpdatesForObjects.name]: (c: PropertyUpdatesForObjects) => {
serverTimeline.onSnapshot(c.timestamp);
@ -72,7 +80,7 @@ export class GameObjectContainer extends CommandReceiver {
c.ids.forEach((id: Id) => this.awaitingDeleteStamp.push(id)),
};
constructor(game: Game) {
constructor(private readonly game: Game) {
super();
this.camera = new Camera(game);
}
@ -86,6 +94,7 @@ export class GameObjectContainer extends CommandReceiver {
this.deleteAt.clear();
this.awaitingCreateStamp = [];
this.awaitingDeleteStamp = [];
this.remoteCalls = [];
this.wasLocalPlayerAlive = false;
}
@ -96,6 +105,16 @@ export class GameObjectContainer extends CommandReceiver {
public step(deltaTimeInSeconds: number) {
this.stampPending(serverTimeline.snapshotTime);
this.retireDueObjects();
this.remoteCalls = this.remoteCalls.filter(({ object, calls, at }) => {
if (this.objects.get(object.id) !== object) {
return false;
}
if (at !== undefined && at <= serverTimeline.renderTime) {
object.processRemoteCalls(calls);
return false;
}
return true;
});
this.objects.forEach((o) => o.step(deltaTimeInSeconds));
const player = this.localPlayer;
@ -107,15 +126,13 @@ export class GameObjectContainer extends CommandReceiver {
if (player) {
localCharacterPredictor.setAlive(alive);
localCharacterPredictor.setStrength(
player.strengthFraction * settings.playerMaxStrength,
);
localCharacterPredictor.setStrength(player.snapshotStrength);
if (localCharacterPredictor.update(this.planets)) {
player.head = localCharacterPredictor.head;
player.leftFoot = localCharacterPredictor.leftFoot;
player.rightFoot = localCharacterPredictor.rightFoot;
}
this.camera.follow(player.position, deltaTimeInSeconds);
this.camera.follow(player.position);
}
}
@ -144,11 +161,14 @@ export class GameObjectContainer extends CommandReceiver {
this.deleteAt.set(id, timestamp);
}
this.awaitingDeleteStamp = [];
for (const call of this.remoteCalls) {
call.at ??= timestamp;
}
}
private retireDueObjects() {
const renderTime = serverTimeline.renderTime;
for (const [id, at] of [...this.deleteAt]) {
for (const [id, at] of this.deleteAt) {
if (renderTime >= at) {
this.deleteObject(id);
}
@ -172,6 +192,12 @@ export class GameObjectContainer extends CommandReceiver {
}
private addObject(object: View) {
// An object can re-enter the interest area before its delayed deletion is drawn.
// Retire the old view and its pending deletion before installing the replacement.
if (this.objects.has(object.id)) {
this.deleteObject(object.id);
}
this.awaitingDeleteStamp = this.awaitingDeleteStamp.filter((id) => id !== object.id);
this.objects.set(object.id, object);
if (object instanceof PlanetView) {
this.planets.push(object);

View file

@ -1,28 +1,17 @@
import { vec2 } from 'gl-matrix';
import { Renderer } from 'sdf-2d';
import { calculateViewArea, followVec2, mixRgb, settings } from 'shared';
import { calculateViewArea, mixRgb, settings } from 'shared';
import type { Game } from '../../game';
import { ScreenShake } from '../../screen-shake';
const followSeconds = 0.08;
const snapDistance = 1500;
export class Camera {
public readonly center: vec2 = vec2.create();
private readonly previousTarget = vec2.create();
private aspectRatio?: number;
constructor(private readonly game: Game) {}
public follow(target: vec2, deltaTimeInSeconds: number) {
followVec2(
this.center,
target,
this.previousTarget,
deltaTimeInSeconds,
followSeconds,
snapDistance,
);
public follow(target: vec2) {
vec2.copy(this.center, target);
}
public draw(renderer: Renderer) {

View file

@ -39,6 +39,7 @@ const deathIcon =
export class CharacterView extends CharacterBase implements View {
public isMainCharacter = false;
public snapshotStrength = settings.playerMaxStrength;
private readonly shape: CharacterShape;
private readonly muzzleFlash: CircleLight;
@ -144,6 +145,7 @@ export class CharacterView extends CharacterBase implements View {
} else if (propertyKey === 'rightFoot') {
this.rightFootInterpolator.addFrame(propertyValue, rateOfChange);
} else if (propertyKey === 'strength') {
this.snapshotStrength = propertyValue;
this.strengthInterpolator.addFrame(propertyValue, rateOfChange);
}
}
@ -225,7 +227,6 @@ export class CharacterView extends CharacterBase implements View {
0,
this.muzzleFlashIntensity - deltaTimeInSeconds / muzzleFlashDecaySeconds,
);
this.muzzleFlash.center = this.head.center;
this.muzzleFlash.intensity = this.muzzleFlashIntensity;
}
@ -241,7 +242,6 @@ export class CharacterView extends CharacterBase implements View {
0,
this.deathBurstIntensity - deltaTimeInSeconds / deathBurstDecaySeconds,
);
this.deathBurst.center = this.bodyCenter;
this.deathBurst.intensity =
deathBurstMaxIntensity * this.deathBurstIntensity * this.deathBurstIntensity;
}
@ -284,9 +284,11 @@ export class CharacterView extends CharacterBase implements View {
renderer.addDrawable(this.shape);
if (this.muzzleFlashIntensity > 0) {
this.muzzleFlash.center = this.head.center;
renderer.addDrawable(this.muzzleFlash);
}
if (this.deathBurstIntensity > 0) {
this.deathBurst.center = this.bodyCenter;
renderer.addDrawable(this.deathBurst);
}
}

View file

@ -8,11 +8,13 @@ import {
UpdatePropertyCommand,
} from 'shared';
import { Vec2Interpolator } from '../../helper/interpolators/vec2-interpolator';
import { LinearInterpolator } from '../../helper/interpolators/linear-interpolator';
import { View } from '../view';
export class ProjectileView extends ProjectileBase implements View {
private readonly light: CircleLight;
private readonly centerInterpolator: Vec2Interpolator;
private readonly strengthInterpolator: LinearInterpolator;
constructor(
id: Id,
@ -28,15 +30,23 @@ export class ProjectileView extends ProjectileBase implements View {
0,
);
this.centerInterpolator = new Vec2Interpolator(center);
this.strengthInterpolator = new LinearInterpolator(strength);
}
public updateProperty({ propertyValue, rateOfChange }: UpdatePropertyCommand) {
this.centerInterpolator.addFrame(propertyValue, rateOfChange);
public updateProperty({
propertyKey,
propertyValue,
rateOfChange,
}: UpdatePropertyCommand) {
if (propertyKey === 'center') {
this.centerInterpolator.addFrame(propertyValue, rateOfChange);
} else if (propertyKey === 'strength') {
this.strengthInterpolator.addFrame(propertyValue, rateOfChange);
}
}
public step(deltaTimeInSeconds: number) {
super.step(deltaTimeInSeconds);
this.strength = Math.max(0, this.strengthInterpolator.getValue(deltaTimeInSeconds));
this.center = this.centerInterpolator.getValue(deltaTimeInSeconds);
this.light.center = this.center;
this.light.intensity = Math.min(

View file

@ -1,5 +1,6 @@
import { SoundHandler, Sounds } from './sound-handler';
import { VibrationHandler } from './vibration-handler';
import { loadStoredValue, saveStoredValue } from './helper/storage';
export interface Options {
vibrationEnabled: boolean;
@ -13,14 +14,17 @@ export const options: Options = {
musicEnabled: true,
};
const save = () => localStorage.setItem('options', JSON.stringify(options));
export const initializeOptions = (
inputElements: Record<keyof Options, HTMLInputElement>,
) => {
const stored = localStorage.getItem('options');
if (stored) {
Object.assign(options, JSON.parse(stored));
const stored = loadStoredValue('options');
if (stored && typeof stored === 'object') {
for (const key of Object.keys(inputElements) as Array<keyof Options>) {
const value = (stored as Partial<Options>)[key];
if (typeof value === 'boolean') {
options[key] = value;
}
}
}
if (options.musicEnabled) {
@ -51,7 +55,7 @@ export const initializeOptions = (
}
SoundHandler.play(Sounds.click);
save();
saveStoredValue('options', options);
});
}
};

View file

@ -16,7 +16,7 @@ let initialized = false;
async function initializeSound(src: string): Promise<HTMLAudioElement> {
const snd = new Audio(src);
snd.muted = true;
await snd.play();
await snd.play().catch(() => undefined);
snd.pause();
snd.muted = false;
snd.currentTime = 0;
@ -27,20 +27,22 @@ async function initialize(
onPlayKeypress: () => unknown = () => null,
onPauseKeypress: () => unknown = () => null,
) {
ambient.muted = true;
ambient.volume = 0.5;
ambient.loop = true;
// Unlock every audio element during the initiating click, before awaiting any one.
const ambientReady = ambient.play().catch(() => undefined);
const [hit, shoot, click] = await Promise.all(
[hitSound, shootSound, clickSound].map(initializeSound),
);
sounds = { hit, shoot, click };
await ambient.play();
ambient.muted = true;
await ambientReady;
initialized = true;
ambient.onpause = onPauseKeypress;
ambient.onplay = onPlayKeypress;
ambient.muted = false;
ambient.volume = 0.5;
ambient.loop = true;
if (!isAmbientPlaying) {
ambient.pause();
@ -66,7 +68,7 @@ function play(snd: Sound, volume = 1, playbackRate = 1) {
function playAmbient() {
isAmbientPlaying = true;
if (initialized) {
ambient.play();
void ambient.play().catch(() => undefined);
}
}