Make physics more fun

backend/src/physics/functions/is-circle-intersecting.ts

@@ -0,0 +1,8 @@
+import { Circle } from 'shared';
+import { evaluateSdf } from './evaluate-sdf';
+import { PhysicalBase } from '../physicals/physical-base';
+
+export const isCircleIntersecting = (
+  circle: Circle,
+  intersectors: Array<PhysicalBase>,
+): boolean => evaluateSdf(circle.center, intersectors) < circle.radius;