Improve gameplay

backend/src/objects/lamp-physical.ts

@@ -32,6 +32,10 @@ export class LampPhysical extends LampBase implements StaticPhysical {
     return this;
   }
 
+  public queueSetLight(color: vec3, lightness: number) {
+    this.remoteCall('setLight', color, lightness);
+  }
+
   public distance(target: vec2): number {
     return vec2.distance(this.center, target);
   }

backend/src/objects/projectile-physical.ts

@@ -53,6 +53,13 @@ export class ProjectilePhysical extends ProjectileBase implements DynamicPhysica
     return !this.isDestroyed;
   }
 
+  public get direction(): vec2 {
+    const direction = vec2.clone(this.velocity);
+    return vec2.length(direction) > 0
+      ? vec2.normalize(direction, direction)
+      : vec2.fromValues(0, -1);
+  }
+
   private moveOutsideOfObject() {
     let wasCollision = true;
     const delta = vec2.scale(