basic state switching from loading to running to editing

train/train.ts

@@ -1,9 +1,9 @@
-import { drawLine } from "../drawing/line.ts";
 import { ComplexPath, PathSegment } from "../math/path.ts";
-import { Vector } from "doodler";
 import { Follower } from "../physics/follower.ts";
 import { Mover } from "../physics/mover.ts";
 import { Spline, Track } from "../track.ts";
+import { getContextItem } from "../lib/context.ts";
+import { Doodler, Vector } from "@bearmetal/doodler";
 
 export class Train {
   nodes: Vector[] = [];
@@ -83,6 +83,12 @@ export class Train {
   //   }
   // }
 
+  draw() {
+    for (const car of this.cars) {
+      car.draw();
+    }
+  }
+
   real2Track(length: number) {
     return length / this.path.pointSpacing;
   }
@@ -113,6 +119,7 @@ export class TrainCar {
 
   draw() {
     if (!this.points) return;
+    const doodler = getContextItem<Doodler>("doodler");
     const [a, b] = this.points;
     const origin = Vector.add(Vector.sub(a, b).div(2), b);
     const angle = Vector.sub(b, a).heading();