Sync TICK_LENGTH constant between client & server

src/ecs/Lockstep.ts

@@ -1,5 +1,5 @@
 
-export const INPUT_FREQUENCY = 33; // roughly 30fps
+export const TICK_LENGTH = 33; // roughly 30fps
 
 export interface LockstepProcessor<LocalInput, GlobalInput, State> {
     compareInput(a: GlobalInput, b: GlobalInput): boolean;

src/game/GameComponents.ts

@@ -3,7 +3,7 @@ import { DrawSet, Layer } from "../applet/Render";
 import { ComponentSchema, Data as EcsData } from "../ecs/Components";
 import { Component, copySparse, Join, StateForSchema, Store } from "../ecs/Data";
 import { DumbMotion } from "../ecs/Location";
-import { INPUT_FREQUENCY, LockstepProcessor } from "../ecs/Lockstep";
+import { LockstepProcessor, TICK_LENGTH } from "../ecs/Lockstep";
 import { Buttons } from "./Input";
 
 export enum GamePhase {
@@ -208,7 +208,7 @@ export class Engine implements LockstepProcessor<KeyName[], KeyName[][], Data> {
     }
 
     advanceState(state: Data, input: KeyName[][]) {
-        DumbMotion(state, INPUT_FREQUENCY);
+        DumbMotion(state, TICK_LENGTH);
         Join(state, "playerControl", "location").forEach(([player, location]) => {
             const playerInput = input[player.playerNumber];
             if(playerInput) {

src/net/LockstepClient.ts

@@ -4,7 +4,7 @@ import animationFrames from "callbag-animation-frames";
 import map from "callbag-map";
 import pipe from "callbag-pipe";
 
-import { INPUT_FREQUENCY, LockstepProcessor, LockstepState } from "../ecs/Lockstep";
+import { LockstepProcessor, LockstepState, TICK_LENGTH } from "../ecs/Lockstep";
 
 export const enum MessageTypes {
     /**
@@ -78,7 +78,7 @@ export abstract class LockstepClient<LocalInput, GlobalInput, State> {
                 this.serverTalkback = data as Server<LocalInput, GlobalInput, State>;
 
                 // kickoff input sender
-                setTimeout(this.sampleInput, INPUT_FREQUENCY);
+                setTimeout(this.sampleInput, TICK_LENGTH);
             } else if (mode == 1) {
                 // server message
                 const message = data as ServerMessage<GlobalInput, State>;
@@ -104,7 +104,7 @@ export abstract class LockstepClient<LocalInput, GlobalInput, State> {
                 this.state.addLocalInput(this.playerNumber, input);
                 this.serverTalkback(1, { t: MessageTypes.INPUT, i: input });
             }
-            setTimeout(this.sampleInput, INPUT_FREQUENCY);
+            setTimeout(this.sampleInput, TICK_LENGTH);
         }
     };
 

src/net/LoopbackServer.ts

@@ -2,7 +2,7 @@ import { Callbag } from "callbag";
 import pipe from "callbag-pipe";
 import share from "callbag-share";
 
-import { INPUT_FREQUENCY } from "../ecs/Lockstep";
+import { TICK_LENGTH } from "../ecs/Lockstep";
 import {
     catchTalkback,
     defer,
@@ -23,7 +23,7 @@ export class LoopbackServer<LocalInput, State> {
     private inputBuffer: LocalInput[] = [];
 
     private heartbeat = pipe(
-        interval(INPUT_FREQUENCY),
+        interval(TICK_LENGTH),
         map(() => ({
             t: MessageTypes.INPUT,
             i: this.inputBuffer.slice()

src/net/mod.rs

@@ -1,8 +1,12 @@
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
+use std::time::Duration;
 
 pub mod server;
 
+/// Roughly 30 fps
+pub static TICK_LENGTH: Duration = Duration::from_millis(33);
+
 pub type PlayerId = usize;
 pub type PlayerInput = Value;
 pub type GameState = Value;