workspaces folders

webclient/src/utils/runtime/object.ts

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+import { getObjectVoxelGroups } from "../graphics/voxelGroup";
+import type { ObjectInstance, ObjectType, RuntimeObjectInstance, V3, World } from "../../types";
+import { buildObjectTrimesh } from "../graphics/mesh";
+
+export function computeBoundingBox(objectType: ObjectType): { min: V3; max: V3 } {
+    if (!objectType.voxels.length)
+        return { min: [0, 0, 0], max: [1, 1, 1] };
+    let minX = Infinity, minY = Infinity, minZ = Infinity;
+    let maxX = -Infinity, maxY = -Infinity, maxZ = -Infinity;
+    for (const v of objectType.voxels) {
+        minX = Math.min(minX, v.position[0]);
+        minY = Math.min(minY, v.position[1]);
+        minZ = Math.min(minZ, v.position[2]);
+        maxX = Math.max(maxX, v.position[0] + 1);
+        maxY = Math.max(maxY, v.position[1] + 1);
+        maxZ = Math.max(maxZ, v.position[2] + 1);
+    }
+    return { min: [minX, minY, minZ], max: [maxX, maxY, maxZ] };
+}
+
+export function populateRuntimeObject(object: ObjectInstance, world: World): RuntimeObjectInstance {
+    const objectType = world.objectTypes[object.typeId];
+
+    return {
+        ...object,
+        cache: {
+            voxelGroups: getObjectVoxelGroups(objectType, world.voxelTypes),
+            colliderMesh: buildObjectTrimesh(objectType, world.voxelTypes),
+            boundingBox: computeBoundingBox(objectType),
+            updatedAt: 0,
+        },
+        pendingActions: {},
+    };
+}
+
+export function depopulateRuntimeObject(object: RuntimeObjectInstance, _world: World): ObjectInstance {
+    const { cache: _cache, ...result } = object;
+    return result;
+}