Add basic multiplayer

backend/src/objects/lamp-physics.ts

@@ -0,0 +1,36 @@
+import { vec2, vec3 } from 'gl-matrix';
+import { LampBase, settings, id } from 'shared';
+
+import { ImmutableBoundingBox } from '../physics/bounds/immutable-bounding-box';
+import { PhysicalGameObject } from '../physics/physical-game-object';
+
+export class LampPhysics extends LampBase implements PhysicalGameObject {
+  public readonly canCollide = false;
+  public readonly isInverted = false;
+  public readonly canMove = false;
+
+  constructor(center: vec2, color: vec3, lightness: number) {
+    super(id(), center, color, lightness);
+  }
+
+  private boundingBox?: ImmutableBoundingBox;
+
+  public getBoundingBox(): ImmutableBoundingBox {
+    if (!this.boundingBox) {
+      this.boundingBox = new ImmutableBoundingBox(
+        this,
+        this.center.x - settings.lightCutoffDistance,
+        this.center.x + settings.lightCutoffDistance,
+        this.center.y - settings.lightCutoffDistance,
+        this.center.y + settings.lightCutoffDistance
+      );
+    }
+
+    return this.boundingBox;
+  }
+
+  public toJSON(): any {
+    const { type, id, center, color, lightness } = this;
+    return [type, id, center, color, lightness];
+  }
+}