Standalone WebGL Applet

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library(mergeGridR)

Play The Applet

This standalone applet runs the puzzle entirely in the browser. It uses WebGL for the board, JavaScript for the rules, and browser-local storage for high scores. No Shiny session, R process, or Rcpp runtime is needed after the page loads. When viewing the source on GitHub, open the direct pkgdown app link: open the standalone app.

If the embedded applet does not load, open the standalone app.

Shiny Or Static HTML

Use run_drop_number() when you want the package-backed Shiny interface and the Rcpp engine available from an R session. This is the best route for development, testing, reproducible simulations, and autoplay benchmarking.

Use the standalone applet when you want a single browser page for play or local sharing. The puzzle rules match the package engine, but all computation happens in the browser. The static app includes preview-horizon, spawn-distribution, and continue controls, and high scores are saved in browser localStorage, separated by preview horizon.

Export A Local Copy

To write the self-contained HTML file from an installed package:

out <- file.path(tempdir(), "mergeGridR-static.html")
export_static_app(out, overwrite = TRUE)

The exported file can be opened directly in a modern desktop or mobile browser with WebGL support.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.