Roster Checker

A minimal static site that provides a Roster Checker for the Open Series, using ISO country lists (with extras) and configurable rules that can be changed from year to year.

Disclaimer: This should not replace the official rulebook, and should only be used as a reference.

A copy of the live checker can be found in: https://fregerson.github.io/osChecker/

Structure

• index.html — Roster Checker UI
• assets/css/styles.css — minimal styling
• assets/js/config.js — configurable regions, thresholds, representable countries
• assets/js/guidelines.js — player representation + roster checks
• assets/js/script.js — populates country list (with extras), roster UI (5–7 players), and results
• assets/js/countries.js — territories missing from RestCountries

Customizing Eligibility Rules

Edit assets/js/config.js for high-level policy and assets/js/guidelines.js for any custom business logic.

Dual nationality: if any nationality is in the restricted set (CN,HK,MO,TW), PR is ignored and the player can only represent that restricted nationality.

Regions and Disallowed Countries

Configure in assets/js/config.js:

• regions: { RegionName: ["US","CA",...] }
• restrictedCitizenshipNoPRExpansion: ["CN","HK","MO","TW"]
• disallowedRepresentCountries: ["XX", ...]

Local Testing

You can open index.html directly in a browser or run a simple static server:

VS Code Live Server (recommended)

• Install the "Live Server" extension
• Open index.html and click "Go Live"

Python (if installed)

python -m http.server 5500

Then open http://localhost:5500/

Directly opening index.html from disk may block fetch('assets/data.json') in the browser, so use a local server for testing.

Notes

• Country lists are loaded from assets/data.json.
• If you update the bundled country data, keep the name and alpha-2 fields intact so the roster dropdowns continue to work.

Roster Checker

• Add 5–7 players, then Check Roster.
• The app automatically evaluates all configured regions and shows where the team qualifies.
• Validation counts a player’s representable country (from nationality/PR rules):
  • Minimum of 5 and maximum of 7 players.
  • Maximum of 1 player whose representable country is outside the region being evaluated.
  • Team representation threshold is region-specific:
    • "Southeast Asia": requires at least 3 players representing the same country and must be in the SEA representable whitelist.
    • All other regions (default): requires at least 2 players representing the same country; filtered by the region’s representable whitelist (if defined).
  • The result shows which countries the team may represent for each region.

Configure thresholds

Set per-region minimums in assets/js/config.js:

teamRepresentationMinByRegion: {
	"Southeast Asia": 3,
	"India": 3,
	// OtherRegion: 2
}