Function checkVec3

src/world/validate.ts:184–192

(errors: string[], path: string, v: Vec3Lit | null)

}

function checkVec3(errors: string[], path: string, v: Vec3Lit | null): void {
  if (!v || !Array.isArray(v) || v.length !== 3) {
    errors.push(path + ' must be a length-3 number array');
    return;
  }
  if (typeof v[0] !== 'number' || typeof v[1] !== 'number' || typeof v[2] !== 'number') {
    errors.push(path + ' must contain numbers');
  }
}

// Re-exported for use in loader/saver error formatting.
export function formatValidationErrors(errors: string[]): string {