Release Healer Man 0.1.26

src/scene/dungeonLabelVisibility.ts

@@ -0,0 +1,36 @@
+import type { Ray, Vector, World } from "@dimforge/rapier3d-compat";
+import { interactionGroups } from "@react-three/rapier";
+
+interface LabelRapierApi {
+  readonly Ray: new (origin: Vector, direction: Vector) => Ray;
+  readonly QueryFilterFlags: {
+    readonly ONLY_FIXED: number;
+    readonly EXCLUDE_SENSORS: number;
+  };
+}
+
+const LABEL_OCCLUSION_GROUPS = interactionGroups(0, 0);
+const LABEL_SURFACE_MARGIN = 0.08;
+
+/** Uses Rapier's spatial index, bounded to the camera-to-label segment. */
+export function hasDungeonLabelLineOfSight(
+  rapier: LabelRapierApi,
+  world: World,
+  camera: Vector,
+  label: Vector,
+): boolean {
+  const dx = label.x - camera.x;
+  const dy = label.y - camera.y;
+  const dz = label.z - camera.z;
+  const distance = Math.hypot(dx, dy, dz);
+  if (!Number.isFinite(distance)) return false;
+  if (distance <= LABEL_SURFACE_MARGIN) return true;
+  const ray = new rapier.Ray(camera, { x: dx / distance, y: dy / distance, z: dz / distance });
+  return !world.castRay(
+    ray,
+    distance - LABEL_SURFACE_MARGIN,
+    true,
+    rapier.QueryFilterFlags.ONLY_FIXED | rapier.QueryFilterFlags.EXCLUDE_SENSORS,
+    LABEL_OCCLUSION_GROUPS,
+  );
+}