Better track shapes, rotation in track editing

.gitignore

@@ -26,3 +26,5 @@ dist-ssr
 
 # Packed devtools
 devtools.zip
+
+temp.*

src/inputs.ts

@@ -2,8 +2,12 @@ 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");
@@ -14,4 +18,22 @@ 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);
+    }
+  });
 }

src/lib/context.ts

@@ -1,14 +1,33 @@
+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);
 }
@@ -38,6 +57,10 @@ export const ctx = new Proxy(
 export function getContext() {
   return ctx;
 }
+export function getContextItem<K extends keyof ContextMap>(
+  prop: string,
+): ContextMap[K];
+export function getContextItem<T>(prop: string): T;
 export function getContextItem<T>(prop: string): T {
   return ctx[prop] as T;
 }

src/main.ts

@@ -27,7 +27,7 @@ setTimeout(() => {
     .imageSmoothingEnabled = false;
 }, 0);
 // doodler.minScale = 0.1;
-(doodler as any).scale = 3.14;
+// (doodler as any).scale = 3.14;
 
 const colors = [
   "red",

src/state/states/EditTrackState.ts

@@ -14,6 +14,8 @@ import {
   SBendLeft,
   SBendRight,
   StraightTrack,
+  WideBankLeft,
+  WideBankRight,
 } from "../../track/shapes.ts";
 import { TrackSegment } from "../../track/system.ts";
 import { clamp } from "../../math/clamp.ts";
@@ -61,6 +63,7 @@ export class EditTrackState extends State<States> {
         p.set(mousePos);
         p.add(relativePoint);
       });
+      segment.recalculateTiePoints();
 
       const ends = track.findEnds();
       setContextItem("showEnds", true);
@@ -109,18 +112,21 @@ 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(),
+              this.closestEnd.tangent.heading() - ghostEndTangent.heading(),
               this.ghostSegment.points[0],
             );
             this.ghostRotated = true;
             break;
+          }
           case "back": {
             this.ghostSegment.setPositionByPoint(
               this.closestEnd.pos,
@@ -136,6 +142,8 @@ export class EditTrackState extends State<States> {
             break;
           }
         }
+        this.ghostSegment.recalculateTiePoints();
+
         // } else if (closestEnd) {
         //   this.closestEnd = closestEnd;
       } else if (!this.closestEnd || !closestEnd) {
@@ -286,6 +294,8 @@ export class EditTrackState extends State<States> {
       new SBendRight(),
       new BankLeft(),
       new BankRight(),
+      new WideBankLeft(),
+      new WideBankRight(),
     ]);
 
     const inputManager = getContextItem<InputManager>("inputManager");
@@ -306,14 +316,6 @@ 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) {
@@ -383,6 +385,18 @@ 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
 
@@ -405,6 +419,8 @@ export class EditTrackState extends State<States> {
     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) {

src/state/states/RunningState.ts

@@ -71,15 +71,18 @@ 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 Tender()]);
-      // ctx.trains.push(train);
+      const train = new Train(track.path, [
+        new LargeLady(),
+        new LargeLadyTender(),
+      ]);
+      ctx.trains.push(train);
     });
-    const train = new Train(track.path, [
-      new LargeLady(),
-      new LargeLadyTender(),
-    ]);
-    ctx.trains.push(train);
-    this.activeTrain = 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 Tender()]);

src/track/shapes.ts

@@ -18,9 +18,9 @@ export class SBendLeft extends TrackSegment {
     start = start || new Vector(100, 100);
     super([
       start,
-      start.copy().add(60, 0),
-      start.copy().add(90, -25),
-      start.copy().add(150, -25),
+      start.copy().add(80, 0),
+      start.copy().add(120, -25),
+      start.copy().add(200, -25),
     ]);
   }
 }
@@ -29,9 +29,9 @@ export class SBendRight extends TrackSegment {
     start = start || new Vector(100, 100);
     super([
       start,
-      start.copy().add(60, 0),
-      start.copy().add(90, 25),
-      start.copy().add(150, 25),
+      start.copy().add(80, 0),
+      start.copy().add(120, 25),
+      start.copy().add(200, 25),
     ]);
   }
 }
@@ -62,6 +62,58 @@ 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 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);

src/track/system.ts

@@ -287,9 +287,7 @@ export class TrackSegment extends PathSegment {
     this.doodler = getContextItem<Doodler>("doodler");
     this.id = id ?? crypto.randomUUID();
     this.recalculateRailPoints();
-
-    const spacing = Math.ceil(this.length / 10);
-    this.evenPoints = this.calculateEvenlySpacedPoints(this.length / spacing);
+    this.recalculateTiePoints();
   }
 
   recalculateRailPoints(resolution = 60) {
@@ -304,6 +302,10 @@ export class TrackSegment extends PathSegment {
       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);
+  }
 
   setTrack(t: TrackSystem) {
     this.track = t;
@@ -431,6 +433,7 @@ 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);
@@ -467,7 +470,7 @@ 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);

src/train/LargeLady.ts

@@ -103,7 +103,7 @@ export class LargeLady extends TrainCar {
     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, .1);
+    this.drawAngle = lerpAngle(this.drawAngle, avgAngle, .2);
 
     doodler.drawRotated(origin, this.drawAngle, () => {
       this.sprite

src/train/train.ts

@@ -23,7 +23,7 @@ export class Train extends Debuggable {
 
   spacing = 0;
 
-  speed = 0;
+  speed = 5;
 
   aabb!: TrainAABB;
 

temp.json

@@ -1 +0,0 @@
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