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main ... vite

29 changed files with 169 additions and 2988 deletions

5
.gitignore vendored
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@ -23,8 +23,3 @@ dist-ssr
*.njsproj
*.sln
*.sw?
# Packed devtools
devtools.zip
temp.*

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@ -3,8 +3,7 @@
"dev": "deno run -A --node-modules-dir npm:vite",
"build": "deno run -A --node-modules-dir npm:vite build",
"preview": "deno run -A --node-modules-dir npm:vite preview",
"serve": "deno run --allow-net --allow-read jsr:@std/http@1/file-server dist/",
"pack-devtools": "rm -rf devtools.zip && deno run -A npm:web-ext build -o --source-dir devtools --artifacts-dir devtools.zip"
"serve": "deno run --allow-net --allow-read jsr:@std/http@1/file-server dist/"
},
"compilerOptions": {
"lib": [
@ -14,9 +13,8 @@
]
},
"imports": {
"@bearmetal/doodler": "jsr:@bearmetal/doodler@0.0.5-e",
"@bearmetal/doodler": "jsr:@bearmetal/doodler@0.0.5-b",
"@deno/vite-plugin": "npm:@deno/vite-plugin@^1.0.4",
"vite": "npm:vite@^6.0.1"
},
"nodeModulesDir": "auto"
}
}

1872
deno.lock generated

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@ -1,9 +1,8 @@
{
"manifest_version": 2,
"name": "SNR DevTools",
"name": "Context Stack DevTools",
"version": "1.0",
"description": "A devtools panel to view and edit context stack values.",
"author": "Emmaline Autumn",
"devtools_page": "devtools.html",
"background": {
"scripts": [
@ -25,13 +24,5 @@
"devtools",
"tabs",
"*://*/*"
],
"icons": {
"48": "train icon.png"
},
"browser_specific_settings": {
"gecko": {
"id": "snrdt@cyborggrizzly.com"
}
}
]
}

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@ -2,12 +2,8 @@ import { getContextItem } from "./lib/context.ts";
import { InputManager } from "./lib/input.ts";
import { StateMachine } from "./state/machine.ts";
import { States } from "./state/states/index.ts";
import { TrackSystem } from "./track/system.ts";
export function bootstrapInputs() {
addEventListener("keydown", (e) => {
e.preventDefault();
});
const inputManager = getContextItem<InputManager>("inputManager");
inputManager.onKey("e", () => {
const state = getContextItem<StateMachine<States>>("state");
@ -18,22 +14,4 @@ export function bootstrapInputs() {
localStorage.removeItem("track");
}
});
inputManager.onKey("c", () => {
if (inputManager.getKeyState("Control")) {
const currentTrack = localStorage.getItem("track");
navigator.clipboard.writeText(currentTrack ?? "[]");
}
});
addEventListener("paste", async (e) => {
let data = e.clipboardData?.getData("text/plain");
if (!data) return;
try {
// data = data.trim().replace(/^"|"$/g, "").replace(/\\"/g, '"');
console.log(data);
const track = TrackSystem.deserialize(JSON.parse(data));
localStorage.setItem("track", track.serialize());
} catch (e) {
console.error(e);
}
});
}

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@ -1,33 +1,14 @@
import { ZoomableDoodler } from "@bearmetal/doodler";
import { TrackSegment } from "../track/system.ts";
import { Train, TrainCar } from "../train/train.ts";
import { InputManager } from "./input.ts";
import { ResourceManager } from "./resources.ts";
interface ContextMap {
inputManager: InputManager;
doodler: ZoomableDoodler;
resources: ResourceManager;
debug: Debug;
colors: [
string,
string,
string,
string,
string,
string,
string,
string,
...string[],
];
[key: string]: unknown;
}
type ContextStore = Record<string, any>;
const defaultContext: ContextStore = {};
const contextStack: ContextStore[] = [defaultContext];
const debug = JSON.parse(localStorage.getItem("debug") || "false");
export function setDefaultContext(context: ContextStore) {
Object.assign(defaultContext, context);
}
@ -57,10 +38,6 @@ export const ctx = new Proxy(
export function getContext() {
return ctx;
}
export function getContextItem<K extends keyof ContextMap>(
prop: K,
): ContextMap[K];
export function getContextItem<T>(prop: string): T;
export function getContextItem<T>(prop: string): T {
return ctx[prop] as T;
}

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@ -1,64 +1,24 @@
// namespace:type/location
type sprite = "sprite";
type img = "img";
type audio = "audio";
type ResourceType = keyof ResourceMap;
type SpriteId = `${string}:${sprite}/${string}`;
interface ResourceMap {
sprite: HTMLImageElement;
img: HTMLImageElement;
audio: HTMLAudioElement;
}
type NamespacedId<T extends keyof ResourceMap> = `${string}:${T}/${string}`;
/**
* Resources are stored in namespaces, and can be accessed by their namespaced id.
* Sprites are located in blob storage as a single png file.
* Audio is located in blob storage as a single mp3 file.
*
* Custom resources can be loaded via the public API, however they will not be loaded on other clients.
* Ideally, engine and car definitions should be stored in the resource manager so that custom cars can be created.
*/
export class ResourceManager {
private resources: Map<string, unknown> = new Map();
private statuses: Map<string, Promise<boolean>> = new Map();
get<K extends ResourceType>(name: NamespacedId<K>): ResourceMap[K];
get<T>(name: string): T;
get<T>(
name: string,
): T {
get<T>(name: string): T {
if (!this.resources.has(name)) {
throw new Error(`Resource ${name} not found`);
}
return this.resources.get(name) as T;
}
set<T extends keyof ResourceMap>(
name: NamespacedId<T>,
value: unknown,
) {
const identifier = parseNamespacedId(name);
set(name: string, value: unknown) {
if (typeof (value as EventSource).addEventListener === "function") {
if (value instanceof Image || value instanceof Audio) {
// During development, we can use the local file system
value.src =
`/blobs/${identifier.namespace}/${identifier.type}/${identifier.name}${
extensionByType(identifier.type)
}`;
console.log(value.src);
}
this.statuses.set(
name,
new Promise((resolve) => {
const onload = () => {
this.resources.set(name, value);
resolve(true);
(value as EventSource).removeEventListener("loadeddata", onload);
(value as EventSource).removeEventListener("load", onload);
};
(value as EventSource).addEventListener("loadeddata", onload);
(value as EventSource).addEventListener("load", onload);
}),
);
@ -76,28 +36,3 @@ export class ResourceManager {
return Promise.all(Array.from(this.statuses.values()));
}
}
function extensionByType(type: ResourceType) {
switch (type) {
case "img":
return ".png";
case "audio":
return ".mp3";
case "sprite":
return ".png";
}
}
type NamespaceIdentifier<T extends ResourceType> = {
namespace: string;
type: T;
name: string;
};
function parseNamespacedId<T extends ResourceType>(
id: NamespacedId<T>,
): NamespaceIdentifier<T> {
const [namespace, location] = id.split(":");
const [type, ...name] = location.split("/");
return { namespace, type: type as T, name: name.join("/") };
}

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@ -20,14 +20,11 @@ const resources = new ResourceManager();
const doodler = new ZoomableDoodler({
fillScreen: true,
bg: "#302040",
noSmooth: true,
}, () => {});
setTimeout(() => {
(doodler as any as { ctx: CanvasRenderingContext2D }).ctx
});
(doodler as any as { ctx: CanvasRenderingContext2D }).ctx
.imageSmoothingEnabled = false;
}, 0);
// doodler.minScale = 0.1;
// (doodler as any).scale = 3.14;
(doodler as any).scale = 3.14;
const colors = [
"red",
@ -40,20 +37,13 @@ const colors = [
"violet",
];
const _fullDebug: Debug = {
const _debug: Debug = JSON.parse(localStorage.getItem("debug") || "0") || {
track: false,
train: false,
path: false,
car: false,
bogies: false,
angles: false,
aabb: false,
segment: false,
};
const storedDebug = JSON.parse(localStorage.getItem("debug") || "0");
const _debug: Debug = Object.assign({}, _fullDebug, storedDebug);
const debug = new Proxy(_debug, {
get: (_, prop: string) => {
// if (prop !in _debug) {
@ -117,8 +107,3 @@ gameLoop.start(state);
if (import.meta.env.DEV) {
console.log("Running in development mode");
}
globalThis.TWO_PI = Math.PI * 2;
declare global {
var TWO_PI: number;
}

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@ -1,7 +0,0 @@
export function angleToRadians(angle: number) {
return angle / 180 * Math.PI;
}
export function angleToDegrees(angle: number) {
return angle * 180 / Math.PI;
}

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@ -9,19 +9,3 @@ export const map = (
x2: number,
y2: number,
) => (value - x1) * (y2 - x2) / (y1 - x1) + x2;
export function lerpAngle(a: number, b: number, t: number) {
let diff = b - a;
// Wrap difference to [-PI, PI]
while (diff < -Math.PI) diff += 2 * Math.PI;
while (diff > Math.PI) diff -= 2 * Math.PI;
return a + diff * t;
}
export function averageAngles(angle1: number, angle2: number) {
// Convert angles to unit vectors
const x = Math.cos(angle1) + Math.cos(angle2);
const y = Math.sin(angle1) + Math.sin(angle2);
// Compute the angle of the resulting vector
return Math.atan2(y, x);
}

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@ -14,10 +14,6 @@ import {
SBendLeft,
SBendRight,
StraightTrack,
TightBankLeft,
TightBankRight,
WideBankLeft,
WideBankRight,
} from "../../track/shapes.ts";
import { TrackSegment } from "../../track/system.ts";
import { clamp } from "../../math/clamp.ts";
@ -44,6 +40,18 @@ export class EditTrackState extends State<States> {
const track = getContextItem<TrackSystem>("track");
const doodler = getContextItem<Doodler>("doodler");
// For moving a segment, i.e. the currently active one
// const segment = track.lastSegment;
// if (segment) {
// const firstPoint = segment.points[0].copy();
// const { x, y } = inputManager.getMouseLocation();
// segment.points.forEach((p, i) => {
// const relativePoint = Vector.sub(p, firstPoint);
// p.set(x, y);
// p.add(relativePoint);
// });
// }
if (this.selectedSegment) {
const segment = this.selectedSegment;
const firstPoint = segment.points[0].copy();
@ -53,7 +61,6 @@ export class EditTrackState extends State<States> {
p.set(mousePos);
p.add(relativePoint);
});
segment.update();
const ends = track.findEnds();
setContextItem("showEnds", true);
@ -102,21 +109,18 @@ export class EditTrackState extends State<States> {
this.ghostRotated = false;
}
switch (this.closestEnd.frontOrBack) {
case "front": {
case "front":
this.ghostSegment.setPositionByPoint(
this.closestEnd.pos,
this.ghostSegment.points[0],
);
// this.ghostSegment.points[0] = this.closestEnd.pos;
const ghostEndTangent = this.ghostSegment.tangent(0);
!this.ghostRotated && this.ghostSegment.rotateAboutPoint(
this.closestEnd.tangent.heading() - ghostEndTangent.heading(),
this.closestEnd.tangent.heading(),
this.ghostSegment.points[0],
);
this.ghostRotated = true;
break;
}
case "back": {
this.ghostSegment.setPositionByPoint(
this.closestEnd.pos,
@ -132,8 +136,6 @@ export class EditTrackState extends State<States> {
break;
}
}
this.ghostSegment.update();
// } else if (closestEnd) {
// this.closestEnd = closestEnd;
} else if (!this.closestEnd || !closestEnd) {
@ -247,7 +249,6 @@ export class EditTrackState extends State<States> {
if (translation.x !== 0 || translation.y !== 0) {
track.translate(translation);
track.recalculateAll();
}
// TODO
@ -285,10 +286,6 @@ export class EditTrackState extends State<States> {
new SBendRight(),
new BankLeft(),
new BankRight(),
new WideBankLeft(),
new WideBankRight(),
new TightBankLeft(),
new TightBankRight(),
]);
const inputManager = getContextItem<InputManager>("inputManager");
@ -309,6 +306,14 @@ export class EditTrackState extends State<States> {
state.transitionTo(States.RUNNING);
});
inputManager.onKey(" ", () => {
if (this.selectedSegment) {
this.selectedSegment = undefined;
} else {
this.selectedSegment = new StraightTrack();
}
});
inputManager.onMouse("left", () => {
const track = getContextItem<TrackSystem>("track");
if (this.ghostSegment && this.closestEnd) {
@ -378,18 +383,6 @@ export class EditTrackState extends State<States> {
}
});
inputManager.onKey("r", () => {
if (!this.selectedSegment) return;
const segment = this.selectedSegment;
let angle = Math.PI / 12;
segment.rotate(angle);
});
inputManager.onKey("R", () => {
if (!this.selectedSegment) return;
const segment = this.selectedSegment;
let angle = -Math.PI / 12;
segment.rotate(angle);
});
// TODO
// Cache trains and save
@ -411,9 +404,6 @@ export class EditTrackState extends State<States> {
const inputManager = getContextItem<InputManager>("inputManager");
inputManager.offKey("e");
inputManager.offKey("w");
inputManager.offKey("z");
inputManager.offKey("r");
inputManager.offKey("R");
inputManager.offKey("Escape");
inputManager.offMouse("left");
if (this.heldEvents.size > 0) {

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@ -34,16 +34,12 @@ export class LoadState extends State<States> {
bootstrapInputs();
// This should be driven by a manifest
resources.set("snr:sprite/engine", new Image());
resources.set("snr:sprite/LargeLady", new Image());
// resources.get<HTMLImageElement>("snr:sprite/engine")!.src =
// "/sprites/EngineSprites.png";
resources.set("snr:audio/ding", new Audio());
resources.set("engine-sprites", new Image());
resources.get<HTMLImageElement>("engine-sprites")!.src =
"/sprites/EngineSprites.png";
resources.ready().then(() => {
this.stateMachine.transitionTo(States.RUNNING);
}).catch((e) => console.error(e));
});
const doodler = getContextItem<Doodler>("doodler");
// this.layers.push(doodler.createLayer((_, __, dTime) => {

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@ -1,4 +1,4 @@
import { Doodler, Point, Vector, ZoomableDoodler } from "@bearmetal/doodler";
import { Doodler } from "@bearmetal/doodler";
import { getContext, getContextItem } from "../../lib/context.ts";
import { InputManager } from "../../lib/input.ts";
import { TrackSystem } from "../../track/system.ts";
@ -8,7 +8,6 @@ import { DotFollower } from "../../train/newTrain.ts";
import { Train } from "../../train/train.ts";
import { State } from "../machine.ts";
import { States } from "./index.ts";
import { LargeLady, LargeLadyTender } from "../../train/LargeLady.ts";
export class RunningState extends State<States> {
override name: States = States.RUNNING;
@ -19,20 +18,8 @@ export class RunningState extends State<States> {
layers: number[] = [];
activeTrain: Train | undefined;
override update(dt: number): void {
const ctx = getContext() as { trains: Train[]; track: TrackSystem };
const doodler = getContextItem<ZoomableDoodler>(
"doodler",
);
if (this.activeTrain) {
// (doodler as any).origin = doodler.worldToScreen(
// doodler.width - this.activeTrain.aabb.center.x,
// doodler.height - this.activeTrain.aabb.center.y,
// );
doodler.centerCameraOn(this.activeTrain.aabb.center);
}
// const ctx = getContext() as { trains: DotFollower[]; track: TrackSystem };
// TODO
// Update trains
@ -71,24 +58,12 @@ export class RunningState extends State<States> {
// const path = track.path;
// const follower = new DotFollower(path, path.points[0].copy());
// ctx.trains.push(follower);
const train = new Train(track.path, [
new LargeLady(),
new LargeLadyTender(),
]);
const train = new Train(track.path, [new RedEngine(), new Tender()]);
ctx.trains.push(train);
});
// const train = new Train(track.path, [
// new LargeLady(),
// new LargeLadyTender(),
// ]);
// ctx.trains.push(train);
// this.activeTr0ain = train;
// const trainCount = 1000;
// for (let i = 0; i < trainCount; i++) {
// const train = new Train(track.path, [
// new LargeLady(),
// new LargeLadyTender(),
// ]);
// const train = new Train(track.path, [new RedEngine(), new Tender()]);
// ctx.trains.push(train);
// }

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@ -1,32 +0,0 @@
/// <reference no-default-lib="true" />
/// <reference lib="esnext" />
/// <reference lib="dom" />
/// <reference lib="dom.iterable" />
/// <reference lib="dom.asynciterable" />
/// <reference lib="deno.ns" />
import { averageAngles, lerpAngle } from "../math/lerp.ts";
import { testPerformance } from "./bench.ts";
Deno.test("angle math", () => {
console.log("Average angles");
testPerformance(
() => {
const a = Math.random() * Math.PI * 2;
const b = Math.random() * Math.PI * 2;
const avg = averageAngles(a, b);
},
10000,
60,
);
console.log("Lerp angles");
testPerformance(
() => {
const a = Math.random() * Math.PI * 2;
const b = Math.random() * Math.PI * 2;
const avg = lerpAngle(a, b, .5);
},
10000,
60,
);
});

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@ -18,9 +18,9 @@ export class SBendLeft extends TrackSegment {
start = start || new Vector(100, 100);
super([
start,
start.copy().add(80, 0),
start.copy().add(120, -25),
start.copy().add(200, -25),
start.copy().add(60, 0),
start.copy().add(90, -25),
start.copy().add(150, -25),
]);
}
}
@ -29,9 +29,9 @@ export class SBendRight extends TrackSegment {
start = start || new Vector(100, 100);
super([
start,
start.copy().add(80, 0),
start.copy().add(120, 25),
start.copy().add(200, 25),
start.copy().add(60, 0),
start.copy().add(90, 25),
start.copy().add(150, 25),
]);
}
}
@ -44,7 +44,7 @@ export class BankLeft extends TrackSegment {
const p2 = start.copy();
const p3 = start.copy();
const p4 = start.copy();
const scale = 66;
const scale = 33;
p2.add(new Vector(1, 0).mult(scale));
p3.set(p2);
@ -62,110 +62,6 @@ export class BankLeft extends TrackSegment {
]);
}
}
export class WideBankLeft extends TrackSegment {
constructor(start?: Vector) {
start = start || new Vector(100, 100);
const p1 = start.copy();
const p2 = start.copy();
const p3 = start.copy();
const p4 = start.copy();
const scale = 70.4;
p2.add(new Vector(1, 0).mult(scale));
p3.set(p2);
const dirToP3 = Vector.fromAngle(-Math.PI / 12).mult(scale);
p3.add(dirToP3);
p4.set(p3);
const dirToP4 = Vector.fromAngle(-Math.PI / 6).mult(scale);
p4.add(dirToP4);
super([
p1,
p2,
p3,
p4,
]);
}
}
export class TightBankLeft extends TrackSegment {
constructor(start?: Vector) {
start = start || new Vector(100, 100);
const p1 = start.copy();
const p2 = start.copy();
const p3 = start.copy();
const p4 = start.copy();
const scale = 61.57;
p2.add(new Vector(1, 0).mult(scale));
p3.set(p2);
const dirToP3 = Vector.fromAngle(-Math.PI / 12).mult(scale);
p3.add(dirToP3);
p4.set(p3);
const dirToP4 = Vector.fromAngle(-Math.PI / 6).mult(scale);
p4.add(dirToP4);
super([
p1,
p2,
p3,
p4,
]);
}
}
export class TightBankRight extends TrackSegment {
constructor(start?: Vector) {
start = start || new Vector(100, 100);
const p1 = start.copy();
const p2 = start.copy();
const p3 = start.copy();
const p4 = start.copy();
const scale = 61.57;
p2.add(new Vector(1, 0).mult(scale));
p3.set(p2);
const dirToP3 = Vector.fromAngle(Math.PI / 12).mult(scale);
p3.add(dirToP3);
p4.set(p3);
const dirToP4 = Vector.fromAngle(Math.PI / 6).mult(scale);
p4.add(dirToP4);
super([
p1,
p2,
p3,
p4,
]);
}
}
export class WideBankRight extends TrackSegment {
constructor(start?: Vector) {
start = start || new Vector(100, 100);
const p1 = start.copy();
const p2 = start.copy();
const p3 = start.copy();
const p4 = start.copy();
const scale = 70.4;
p2.add(new Vector(1, 0).mult(scale));
p3.set(p2);
const dirToP3 = Vector.fromAngle(Math.PI / 12).mult(scale);
p3.add(dirToP3);
p4.set(p3);
const dirToP4 = Vector.fromAngle(Math.PI / 6).mult(scale);
p4.add(dirToP4);
super([
p1,
p2,
p3,
p4,
]);
}
}
export class BankRight extends TrackSegment {
constructor(start?: Vector) {
start = start || new Vector(100, 100);
@ -174,7 +70,7 @@ export class BankRight extends TrackSegment {
const p2 = start.copy();
const p3 = start.copy();
const p4 = start.copy();
const scale = 66;
const scale = 33;
p2.add(new Vector(1, 0).mult(scale));
p3.set(p2);

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@ -2,14 +2,12 @@ import { Doodler, Point, Vector } from "@bearmetal/doodler";
import { ComplexPath, PathSegment } from "../math/path.ts";
import { getContextItem, setDefaultContext } from "../lib/context.ts";
import { clamp } from "../math/clamp.ts";
import { Debuggable } from "../lib/debuggable.ts";
export class TrackSystem extends Debuggable {
export class TrackSystem {
private _segments: Map<string, TrackSegment> = new Map();
private doodler: Doodler;
constructor(segments: TrackSegment[]) {
super("track");
this.doodler = getContextItem<Doodler>("doodler");
for (const segment of segments) {
this._segments.set(segment.id, segment);
@ -28,19 +26,6 @@ export class TrackSystem extends Debuggable {
return this._segments.values().toArray().pop();
}
getNearestSegment(pos: Vector) {
let minDistance = Infinity;
let nearestSegment: TrackSegment | undefined;
for (const segment of this._segments.values()) {
const distance = segment.getDistanceTo(pos);
if (distance < minDistance) {
minDistance = distance;
nearestSegment = segment;
}
}
return nearestSegment;
}
optimize(percent: number) {
console.log("Optimizing track", percent * 100 / 4);
for (const segment of this._segments.values()) {
@ -50,7 +35,7 @@ export class TrackSystem extends Debuggable {
recalculateAll() {
for (const segment of this._segments.values()) {
segment.update();
segment.recalculateRailPoints();
segment.length = segment.calculateApproxLength();
}
}
@ -100,15 +85,6 @@ export class TrackSystem extends Debuggable {
// }
}
override debugDraw(): void {
const debug = getContextItem("debug");
if (debug.track) {
for (const segment of this._segments.values()) {
segment.drawAABB();
}
}
}
ends: Map<TrackSegment, [End, End]> = new Map();
endArray: End[] = [];
@ -306,56 +282,14 @@ export class TrackSegment extends PathSegment {
antiNormalPoints: Vector[] = [];
evenPoints: [Vector, number][] = [];
aabb!: AABB;
private trackGuage = 12;
constructor(p: VectorSet, id?: string) {
super(p);
this.doodler = getContextItem<Doodler>("doodler");
this.id = id ?? crypto.randomUUID();
this.update();
}
this.recalculateRailPoints();
getDistanceTo(pos: Vector) {
return Vector.dist(this.aabb.center, pos);
}
updateAABB() {
let minX = Infinity;
let maxX = -Infinity;
let minY = Infinity;
let maxY = -Infinity;
[...this.normalPoints, ...this.antiNormalPoints].forEach((p) => {
minX = Math.min(minX, p.x);
maxX = Math.max(maxX, p.x);
minY = Math.min(minY, p.y);
maxY = Math.max(maxY, p.y);
});
const width = maxX - minX;
const height = maxY - minY;
if (width < this.trackGuage) {
const extra = (this.trackGuage - width) / 2;
minX -= extra;
maxX += extra;
}
if (height < this.trackGuage) {
const extra = (this.trackGuage - height) / 2;
minY -= extra;
maxY += extra;
}
this.aabb = {
pos: new Vector(minX, minY),
x: minX,
y: minY,
width: maxX - minX,
height: maxY - minY,
center: new Vector(minX, minY).add(
new Vector(maxX - minX, maxY - minY).div(2),
),
};
const spacing = Math.ceil(this.length / 10);
this.evenPoints = this.calculateEvenlySpacedPoints(this.length / spacing);
}
recalculateRailPoints(resolution = 60) {
@ -364,22 +298,12 @@ export class TrackSegment extends PathSegment {
for (let i = 0; i <= resolution; i++) {
const t = i / resolution;
const normal = this.tangent(t).rotate(Math.PI / 2);
normal.setMag(this.trackGuage / 2);
normal.setMag(6);
const p = this.getPointAtT(t);
this.normalPoints.push(p.copy().add(normal));
this.antiNormalPoints.push(p.copy().add(normal.rotate(Math.PI)));
}
}
recalculateTiePoints() {
const spacing = Math.ceil(this.length / 10);
this.evenPoints = this.calculateEvenlySpacedPoints(this.length / spacing);
}
update() {
this.recalculateRailPoints();
this.recalculateTiePoints();
this.updateAABB();
}
setTrack(t: TrackSystem) {
this.track = t;
@ -465,15 +389,6 @@ export class TrackSegment extends PathSegment {
// });
}
drawAABB() {
this.doodler.drawRect(this.aabb.pos, this.aabb.width, this.aabb.height, {
color: "lime",
});
this.doodler.drawCircle(this.aabb.center, 2, {
color: "cyan",
});
}
serialize(): SerializedTrackSegment {
return {
p: this.points.map((p) => p.array()),
@ -516,7 +431,6 @@ export class TrackSegment extends PathSegment {
rotate(angle: number | Vector) {
const [p1, p2, p3, p4] = this.points;
let newP2;
if (angle instanceof Vector) {
const tan = angle;
angle = tan.heading() - (this.lastHeading ?? 0);
@ -553,7 +467,7 @@ export class TrackSegment extends PathSegment {
}
rotateAboutPoint(angle: number, point: Vector) {
// if (!this.points.includes(point)) return;
if (!this.points.includes(point)) return;
point = point.copy();
this.points.forEach((p, i) => {
const relativePoint = Vector.sub(p, point);
@ -585,14 +499,7 @@ export class Spline<T extends PathSegment = PathSegment> {
ctx?: CanvasRenderingContext2D;
evenPoints: PathPoint[];
_pointSpacing: number;
get pointSpacing() {
return this._pointSpacing;
}
set pointSpacing(value: number) {
this._pointSpacing = value;
this.evenPoints = this.calculateEvenlySpacedPoints(value);
}
pointSpacing: number;
get points() {
return Array.from(new Set(this.segments.flatMap((s) => s.points)));
@ -607,8 +514,8 @@ export class Spline<T extends PathSegment = PathSegment> {
if (this.segments.at(-1)?.next === this.segments[0]) {
this.looped = true;
}
this._pointSpacing = 1;
this.evenPoints = this.calculateEvenlySpacedPoints(this._pointSpacing);
this.pointSpacing = 1;
this.evenPoints = this.calculateEvenlySpacedPoints(1);
this.nodes = [];
// for (let i = 0; i < this.points.length; i += 3) {
// const node: IControlNode = {
@ -642,7 +549,7 @@ export class Spline<T extends PathSegment = PathSegment> {
}
calculateEvenlySpacedPoints(spacing: number, resolution = 1): PathPoint[] {
// this._pointSpacing = 1;
this.pointSpacing = 1;
// return this.segments.flatMap(s => s.calculateEvenlySpacedPoints(spacing, resolution));
const points: PathPoint[] = [];
@ -682,7 +589,7 @@ export class Spline<T extends PathSegment = PathSegment> {
}
}
// this.evenPoints = points;
this.evenPoints = points;
return points;
}

View File

@ -1,194 +0,0 @@
import { Doodler, Vector } from "@bearmetal/doodler";
import { Train, TrainCar } from "./train.ts";
import { getContextItem } from "../lib/context.ts";
import { ResourceManager } from "../lib/resources.ts";
import { debug } from "node:console";
import { averageAngles, lerpAngle } from "../math/lerp.ts";
export class LargeLady extends TrainCar {
scale = 1;
constructor() {
const resources = getContextItem<ResourceManager>("resources");
const img = resources.get<HTMLImageElement>("snr:sprite/LargeLady")!;
super(50, 10, img, 132, 23, {
at: new Vector(0, 0),
width: 132,
height: 23,
});
this.bogies = [
{
pos: new Vector(0, 0),
angle: 0,
length: 35 * this.scale,
sprite: {
at: new Vector(0, 24),
width: 35,
height: 23,
offset: new Vector(-23, -11.5),
},
},
{
pos: new Vector(0, 0),
angle: 0,
length: 64 * this.scale,
// sprite: {
// at: new Vector(0, 23),
// width: 33,
// height: 19,
// offset: new Vector(-19, -9.5),
// },
sprite: {
at: new Vector(36, 24),
width: 60,
height: 23,
offset: new Vector(-35, -11.5),
},
},
{
pos: new Vector(0, 0),
angle: 0,
length: 35 * this.scale,
sprite: {
at: new Vector(36, 24),
width: 60,
height: 23,
offset: new Vector(-35, -11.5),
},
},
{
pos: new Vector(0, 0),
angle: 0,
length: 28,
sprite: {
at: new Vector(97, 24),
width: 22,
height: 23,
offset: new Vector(-11, -11.5),
},
},
];
this.leading = 23;
}
drawAngle?: number;
override draw(): void {
const doodler = getContextItem<Doodler>("doodler");
for (const b of this.bogies) {
if (!b.sprite) continue;
doodler.drawRotated(b.pos, b.angle + (b.rotate ? 0 : Math.PI), () => {
doodler.drawSprite(
this.img,
b.sprite!.at,
b.sprite!.width,
b.sprite!.height,
b.pos.copy().add(b.sprite!.offset ?? new Vector(0, 0)),
b.sprite!.width,
b.sprite!.height,
);
});
}
const b = this.bogies[2];
const a = this.bogies[1];
// const origin = Vector.add(Vector.sub(a.pos, b.pos).div(2), b.pos);
// const angle = Vector.sub(b.pos, a.pos).heading();
const debug = getContextItem<Debug>("debug");
if (debug.bogies) return;
const difAngle = Vector.sub(a.pos, b.pos).heading();
if (this.drawAngle == undefined) this.drawAngle = b.angle + Math.PI;
const origin = b.pos.copy().add(new Vector(33, 0).rotate(difAngle));
const angle = b.angle;
const avgAngle = averageAngles(difAngle, angle) + Math.PI;
this.drawAngle = lerpAngle(this.drawAngle, avgAngle, .2);
doodler.drawRotated(origin, this.drawAngle, () => {
this.sprite
? doodler.drawSprite(
this.img,
this.sprite.at,
this.sprite.width,
this.sprite.height,
origin.copy().sub(
this.imgWidth * this.scale / 2,
this.imgHeight * this.scale / 2,
),
this.imgWidth * this.scale,
this.imgHeight * this.scale,
)
: doodler.drawImage(
this.img,
origin.copy().sub(this.imgWidth / 2, this.imgHeight / 2),
);
});
// doodler.drawCircle(origin, 4, { color: "blue" });
doodler.deferDrawing(() => {
doodler.drawRotated(origin, this.drawAngle! + Math.PI, () => {
doodler.drawSprite(
this.img,
new Vector(133, 0),
28,
23,
origin.copy().sub(93, this.imgHeight / 2),
28,
23,
);
});
});
}
}
export class LargeLadyTender extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
const sprite = resources.get("snr:sprite/LargeLady");
super(40, 39, sprite, 98, 23, {
at: new Vector(0, 48),
width: 98,
height: 23,
});
this.leading = 19;
}
override draw(): void {
const doodler = getContextItem<Doodler>("doodler");
const b = this.bogies[0];
doodler.drawRotated(b.pos, b.angle, () => {
doodler.drawSprite(
this.img,
new Vector(97, 24),
22,
23,
b.pos.copy().sub(11, 11.5),
22,
23,
);
});
const angle = Vector.sub(this.bogies[1].pos, this.bogies[0].pos).heading();
const origin = this.bogies[1].pos.copy().add(
new Vector(-11, 0).rotate(angle),
);
doodler.drawRotated(origin, angle, () => {
this.sprite
? doodler.drawSprite(
this.img,
this.sprite.at,
this.sprite.width,
this.sprite.height,
origin.copy().sub(this.imgWidth / 2, this.imgHeight / 2),
this.imgWidth,
this.imgHeight,
)
: doodler.drawImage(
this.img,
origin.copy().sub(this.imgWidth / 2, this.imgHeight / 2),
);
});
}
}

View File

@ -6,85 +6,50 @@ import { getContextItem } from "../lib/context.ts";
export class Tender extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
25,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
40,
20,
{
super(25, resources.get<HTMLImageElement>("engine-sprites")!, 40, 20, {
at: new Vector(80, 0),
width: 40,
height: 20,
},
);
});
}
}
export class Tank extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
50,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
70,
20,
{
super(50, resources.get<HTMLImageElement>("engine-sprites")!, 70, 20, {
at: new Vector(80, 20),
width: 70,
height: 20,
},
);
});
}
}
export class YellowDumpCar extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
50,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
70,
20,
{
super(50, resources.get<HTMLImageElement>("engine-sprites")!, 70, 20, {
at: new Vector(80, 40),
width: 70,
height: 20,
},
);
});
}
}
export class GrayDumpCar extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
50,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
70,
20,
{
super(50, resources.get<HTMLImageElement>("engine-sprites")!, 70, 20, {
at: new Vector(80, 60),
width: 70,
height: 20,
},
);
});
}
}
export class NullCar extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
50,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
70,
20,
{
super(50, resources.get<HTMLImageElement>("engine-sprites")!, 70, 20, {
at: new Vector(80, 80),
width: 70,
height: 20,
},
);
});
}
}

View File

@ -6,85 +6,50 @@ import { ResourceManager } from "../lib/resources.ts";
export class RedEngine extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
55,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
80,
20,
{
super(55, resources.get<HTMLImageElement>("engine-sprites")!, 80, 20, {
at: new Vector(0, 60),
width: 80,
height: 20,
},
);
});
}
}
export class PurpleEngine extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
55,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
80,
20,
{
super(55, resources.get<HTMLImageElement>("engine-sprites")!, 80, 20, {
at: new Vector(0, 60),
width: 80,
height: 20,
},
);
});
}
}
export class GreenEngine extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
55,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
80,
20,
{
super(55, resources.get<HTMLImageElement>("engine-sprites")!, 80, 20, {
at: new Vector(0, 40),
width: 80,
height: 20,
},
);
});
}
}
export class GrayEngine extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
55,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
80,
20,
{
super(55, resources.get<HTMLImageElement>("engine-sprites")!, 80, 20, {
at: new Vector(0, 20),
width: 80,
height: 20,
},
);
});
}
}
export class BlueEngine extends TrainCar {
constructor() {
const resources = getContextItem<ResourceManager>("resources");
super(
55,
10,
resources.get<HTMLImageElement>("snr:sprite/engine")!,
80,
20,
{
super(55, resources.get<HTMLImageElement>("engine-sprites")!, 80, 20, {
at: new Vector(0, 0),
width: 80,
height: 20,
},
);
});
}
}

View File

@ -2,7 +2,7 @@ import { getContextItem } from "../lib/context.ts";
import { Doodler, Vector } from "@bearmetal/doodler";
import { Spline, TrackSegment, TrackSystem } from "../track/system.ts";
import { Debuggable } from "../lib/debuggable.ts";
import { lerp, lerpAngle, map } from "../math/lerp.ts";
import { map } from "../math/lerp.ts";
export class Train extends Debuggable {
nodes: Vector[] = [];
@ -12,91 +12,64 @@ export class Train extends Debuggable {
path: Spline<TrackSegment>;
t: number;
spacing = 0;
spacing = 20;
speed = 5;
aabb!: AABB;
speed = 10;
get segments() {
return Array.from(
new Set(this.cars.flatMap((c) => c.segments.values().toArray())),
);
return Array.from(new Set(this.cars.flatMap((c) => c.segments)));
}
constructor(track: Spline<TrackSegment>, cars: TrainCar[], t = 0) {
constructor(track: Spline<TrackSegment>, cars: TrainCar[]) {
super("train", "path");
this.path = track;
this.path.pointSpacing = 4;
this.t = 0;
this.cars = cars;
this.t = this.cars.reduce((acc, c) => acc + c.length, 0) +
(this.cars.length - 1) * this.spacing;
this.t = this.t / this.path.pointSpacing;
let currentOffset = 0;
// try {
try {
for (const car of this.cars) {
car.train = this;
currentOffset += car.moveAlongPath(this.t - currentOffset, true) +
this.spacing / this.path.pointSpacing;
currentOffset += this.spacing;
const a = this.path.followEvenPoints(this.t - currentOffset);
currentOffset += car.length;
const b = this.path.followEvenPoints(this.t - currentOffset);
car.points = [a.p, b.p];
this.nodes.push(a.p, b.p);
car.segments = [a.segmentId, b.segmentId];
}
} catch {
currentOffset = 0;
for (const car of this.cars.toReversed()) {
currentOffset += this.spacing;
const a = this.path.followEvenPoints(this.t - currentOffset);
currentOffset += car.length;
const b = this.path.followEvenPoints(this.t - currentOffset);
car.points = [a.p, b.p];
this.nodes.push(a.p, b.p);
car.segments = [a.segmentId, b.segmentId];
}
}
// } catch {
// currentOffset = 0;
// console.log("Reversed");
// for (const car of this.cars.toReversed()) {
// for (const [i, bogie] of car.bogies.entries().toArray().reverse()) {
// currentOffset += bogie.length;
// const a = this.path.followEvenPoints(this.t - currentOffset);
// car.setBogiePosition(a.p, i);
// this.nodes.push(a.p);
// car.segments.add(a.segmentId);
// }
// }
// }
this.updateAABB();
}
move(dTime: number) {
if (!this.speed) return;
this.t = this.t + (this.speed / this.path.pointSpacing) * dTime * 10;
this.t = this.t + this.speed * dTime * 10;
// % this.path.evenPoints.length; // This should probably be on the track system
let currentOffset = 0;
for (const car of this.cars) {
// This needs to be moved to the car itself
// if (!car.points) return;
// const [a, b] = car.points;
// const nA = this.path.followEvenPoints(this.t - currentOffset);
// a.set(nA.p);
// currentOffset += car.length;
// const nB = this.path.followEvenPoints(this.t - currentOffset);
// b.set(nB.p);
// currentOffset += this.spacing;
// car.segments = [nA.segmentId, nB.segmentId];
if (!car.points) return;
const [a, b] = car.points;
const nA = this.path.followEvenPoints(this.t - currentOffset);
a.set(nA.p);
currentOffset += car.length;
const nB = this.path.followEvenPoints(this.t - currentOffset);
b.set(nB.p);
currentOffset += this.spacing;
car.segments = [nA.segmentId, nB.segmentId];
// car.draw();
currentOffset += car.moveAlongPath(this.t - currentOffset) +
(this.spacing / this.path.pointSpacing);
}
// this.draw();
this.updateAABB();
}
updateAABB() {
const minX = Math.min(...this.cars.map((c) => c.aabb.x));
const maxX = Math.max(...this.cars.map((c) => c.aabb.x + c.aabb.width));
const minY = Math.min(...this.cars.map((c) => c.aabb.y));
const maxY = Math.max(...this.cars.map((c) => c.aabb.y + c.aabb.height));
this.aabb = {
pos: new Vector(minX, minY),
x: minX,
y: minY,
width: maxX - minX,
height: maxY - minY,
center: new Vector(minX, minY).add(
new Vector(maxX - minX, maxY - minY).div(2),
),
};
}
// draw() {
@ -145,7 +118,7 @@ export class Train extends Debuggable {
colors.push(colors.shift()!);
colors.push(colors.shift()!);
colors.push(colors.shift()!);
for (const [i, segmentId] of this.segments.entries().toArray()) {
for (const [i, segmentId] of this.segments.entries()) {
const segment = track.getSegment(segmentId);
segment &&
doodler.drawBezier(...segment.points, {
@ -154,16 +127,6 @@ export class Train extends Debuggable {
});
}
}
if (debug.aabb) {
doodler.deferDrawing(() => {
doodler.drawRect(this.aabb.pos, this.aabb.width, this.aabb.height, {
color: "orange",
});
doodler.drawCircle(this.aabb.center, 2, {
color: "lime",
});
});
}
}
real2Track(length: number) {
@ -171,14 +134,6 @@ export class Train extends Debuggable {
}
}
interface Bogie {
pos: Vector;
angle: number;
length: number;
sprite?: ISprite & { offset?: Vector };
rotate?: boolean;
}
export class TrainCar extends Debuggable {
img: HTMLImageElement;
imgWidth: number;
@ -186,141 +141,31 @@ export class TrainCar extends Debuggable {
sprite?: ISprite;
points?: [Vector, Vector, ...Vector[]];
_length: number;
leading: number = 0;
length: number;
bogies: Bogie[] = [];
segments: Set<string> = new Set();
train?: Train;
aabb!: AABB;
segments: string[] = [];
constructor(
length: number,
trailing: number,
img: HTMLImageElement,
w: number,
h: number,
sprite?: ISprite,
) {
super(true, "car", "bogies", "angles");
super(true, "car");
this.img = img;
this.sprite = sprite;
this.imgWidth = w;
this.imgHeight = h;
this._length = length;
this.bogies = [
{
pos: new Vector(0, 0),
angle: 0,
length: length,
},
{
pos: new Vector(0, 0),
angle: 0,
length: trailing,
},
];
this.updateAABB();
}
get length() {
return this.bogies.reduce((acc, b) => acc + b.length, 0) + this.leading;
}
setBogiePosition(pos: Vector, idx: number) {
this.bogies[idx].pos.set(pos);
}
update(dTime: number, t: number) {
if (this.train) {
for (const [i, bogie] of this.bogies.entries()) {
const a = this.train.path.followEvenPoints(t - this._length * i);
}
}
}
updateAABB() {
let minX = Infinity;
let maxX = -Infinity;
let minY = Infinity;
let maxY = -Infinity;
this.bogies.forEach((bogie, index) => {
// Unit vector in the direction the bogie is facing.
const u = new Vector(Math.cos(bogie.angle), Math.sin(bogie.angle));
// Perpendicular vector (to thicken the rectangle).
const v = new Vector(-Math.sin(bogie.angle), Math.cos(bogie.angle));
// For the first bogie, extend in the opposite direction by this.leading.
let front = bogie.pos.copy();
if (index === 0) {
front = front.sub(u.copy().rotate(Math.PI).mult(this.leading));
}
// Rear point is at bogie.pos plus the bogie length.
const rear = bogie.pos.copy().add(
u.copy().rotate(Math.PI).mult(bogie.length),
);
// Calculate half the height to offset from the center line.
const halfHeight = this.imgHeight / 2;
// Calculate the four corners of the rectangle.
const corners = [
front.copy().add(v.copy().mult(halfHeight)),
front.copy().add(v.copy().mult(-halfHeight)),
rear.copy().add(v.copy().mult(halfHeight)),
rear.copy().add(v.copy().mult(-halfHeight)),
];
// Update the overall AABB limits.
corners.forEach((corner) => {
minX = Math.min(minX, corner.x);
minY = Math.min(minY, corner.y);
maxX = Math.max(maxX, corner.x);
maxY = Math.max(maxY, corner.y);
});
});
this.aabb = {
pos: new Vector(minX, minY),
center: new Vector(minX, minY).add(
new Vector(maxX - minX, maxY - minY).div(2),
),
x: minX,
y: minY,
width: maxX - minX,
height: maxY - minY,
};
}
moveAlongPath(t: number, initial = false): number {
if (!this.train) return 0;
let offset = this.leading / this.train.path.pointSpacing;
this.segments.clear();
for (const [i, bogie] of this.bogies.entries()) {
const a = this.train.path.followEvenPoints(t - offset);
a.tangent.rotate(TWO_PI);
offset += bogie.length / this.train.path.pointSpacing;
this.setBogiePosition(a.p, i);
if (initial) bogie.angle = a.tangent.heading();
else {
bogie.angle = lerpAngle(a.tangent.heading(), bogie.angle, .1);
}
this.segments.add(a.segmentId);
}
this.updateAABB();
return offset;
this.length = length;
}
draw() {
if (!this.points) return;
const doodler = getContextItem<Doodler>("doodler");
const [a, b] = this.bogies;
const origin = Vector.add(Vector.sub(a.pos, b.pos).div(2), b.pos);
const angle = Vector.sub(b.pos, a.pos).heading();
const [a, b] = this.points;
const origin = Vector.add(Vector.sub(a, b).div(2), b);
const angle = Vector.sub(b, a).heading();
doodler.drawCircle(origin, 4, { color: "blue" });
@ -342,93 +187,12 @@ export class TrainCar extends Debuggable {
});
}
override debugDraw(...args: unknown[]): void {
if (!this.points) return;
const doodler = getContextItem<Doodler>("doodler");
const debug = getContextItem<Debug>("debug");
if (debug.bogies) {
doodler.deferDrawing(() => {
for (const [i, b] of this.bogies.entries()) {
const next = this.bogies[i + 1];
if (!next) continue;
const dist = Vector.dist(b.pos, next.pos);
doodler.drawCircle(b.pos, 5, { color: "red" });
doodler.fillText(
dist.toFixed(1).toString(),
b.pos.copy().add(10, 10),
100,
{
color: "white",
},
);
}
});
}
if (debug.car) {
doodler.deferDrawing(() => {
doodler.drawLine(this.bogies.map((b) => b.pos), {
doodler.drawLine(this.points, {
color: "blue",
weight: 2,
weight: 3,
});
doodler.deferDrawing(() => {
const colors = getContextItem<string[]>("colors");
for (const [i, b] of this.bogies.entries()) {
doodler.drawCircle(b.pos, 5, { color: colors[i % colors.length] });
doodler.fillText(
b.length.toString(),
b.pos.copy().add(10, 0),
100,
{
color: "white",
},
);
}
});
});
if (debug.aabb) {
doodler.deferDrawing(() => {
doodler.drawRect(this.aabb.pos, this.aabb.width, this.aabb.height, {
color: "white",
weight: .5,
});
doodler.drawCircle(this.aabb.center, 2, {
color: "yellow",
});
doodler.fillText(
this.aabb.width.toFixed(1).toString(),
this.aabb.center.copy().add(10, 10),
100,
{
color: "white",
},
);
});
}
}
if (debug.angles) {
doodler.deferDrawing(() => {
const ps: { pos: Vector; angle: number }[] = [];
for (const [i, b] of this.bogies.entries()) {
ps.push({ pos: b.pos, angle: b.angle });
const next = this.bogies[i + 1];
if (!next) continue;
const heading = Vector.sub(next.pos, b.pos);
const p = b.pos.copy().add(heading.mult(.5));
ps.push({ pos: p, angle: heading.heading() });
}
for (const p of ps) {
doodler.dot(p.pos, { color: "green" });
doodler.fillText(
p.angle.toFixed(2).toString(),
p.pos.copy().add(0, 20),
100,
{
color: "white",
},
);
}
});
}
}
}

View File

@ -18,33 +18,8 @@ declare global {
type Debug = {
track: boolean;
segment: boolean;
train: boolean;
car: boolean;
path: boolean;
bogies: boolean;
angles: boolean;
aabb: boolean;
};
type AABB = {
pos: Vector;
x: number;
y: number;
width: number;
height: number;
center: Vector;
};
}
export function applyMixins(derivedCtor: any, baseCtors: any[]) {
baseCtors.forEach((baseCtor) => {
Object.getOwnPropertyNames(baseCtor.prototype).forEach((name) => {
Object.defineProperty(
derivedCtor.prototype,
name,
Object.getOwnPropertyDescriptor(baseCtor.prototype, name) ?? {},
);
});
});
}