{"id":2001,"date":"2026-08-25T22:21:48","date_gmt":"2026-08-25T22:21:48","guid":{"rendered":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/?post_type=knowledgebase&p=2001"},"modified":"2026-08-25T22:57:03","modified_gmt":"2026-08-25T22:57:03","slug":"easter-egg-tetris","status":"publish","type":"knowledgebase","link":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/db\/info-settings\/easter-egg-tetris\/","title":{"rendered":"Easter Egg: Tetris"},"content":{"rendered":"
\n

Easter Egg: Tetris\"Easter<\/span><\/h2>\n

Hidden inside Open Publisher is a fully playable retro Tetris game, built from scratch with its own standalone game engine, a custom soundtrack, procedurally generated 8-bit sound effects, and a dynamic scoring system. Unlocking it takes exactly one classic cheat code.<\/p>\n

How to Unlock It
\n\"How<\/span><\/h3>\n

At any time while Open Publisher is open, type the classic Konami Code<\/strong> on your keyboard:<\/p>\n

\u2191\u00a0 \u2191\u00a0 \u2193\u00a0 \u2193\u00a0 \u2190\u00a0 \u2192\u00a0 \u2190\u00a0 \u2192\u00a0 B\u00a0 A<\/span><\/p>\n

A background key listener monitors for this exact sequence. The moment the final key is pressed, the document editor seamlessly transforms into a fully playable Tetris game rendered directly on the canvas.<\/p>\n

The Game Engine\"The<\/span><\/h3>\n

The Tetris game is powered by a lightweight, standalone JavaScript engine built entirely from scratch. It includes:<\/p>\n

    \n
  • \n

    Accurate piece rotation & collision detection –<\/strong> Pieces rotate and collide using correct rotation mathematics, behaving exactly as you would expect from a classic Tetris game.<\/span><\/p>\n<\/li>\n

  • \n

    \"The<\/h3>\n

    \u201cCoyote time\u201d lock delays –<\/strong> A 500ms lock delay is applied before pieces settle, giving you a brief window to slide or adjust after a piece lands – the same technique used in professional Tetris implementations for a polished, forgiving feel.<\/span><\/p>\n<\/li>\n

  • \n

    Dynamic responsive sizing –<\/strong> The game board automatically scales edge-to-edge to fit your current document canvas size, regardless of the page size or zoom level you are working at.<\/span><\/p>\n<\/li>\n

  • \n

    Line-clearing animations & scoring –<\/strong> Lines clear with dynamic animations and the score updates in real time.<\/span><\/p>\n<\/li>\n<\/ul>\n

    Sound & Music<\/span><\/h3>\n

    The audio is generated and played entirely within the browser using the Web Audio API<\/strong>:\"Sound<\/strong><\/p>\n

      \n
    • \n

      8-bit sound effects –<\/strong> Procedurally synthesised retro sound effects play for every piece movement, rotation, lock, drop, line clear, and game over.<\/span><\/p>\n<\/li>\n

    • \n

      The Open Publisher Tetris Theme –<\/strong> A custom background music track (Created with Gemini) plays throughout the game, carefully mixed at 25% volume so it complements rather than overpowers the sound effects.<\/span><\/p>\n<\/li>\n<\/ul>\n

      The 3D Credit Overlay\"The<\/span><\/h3>\n

      When the game starts, an elegant pixel-styled credit overlay unrolls into the grey workspace area using a CSS 3D rotateX<\/span> and clip-path<\/span> transition – a cinematic opening sequence before the first piece drops.<\/p>\n

      Exiting the Game<\/span><\/h3>\n

      \"Exiting<\/h3>\n

      While Tetris is active, an Exit Tetris<\/strong> button is injected directly into the Home<\/strong> ribbon, giving you a highly visible one-click way out at any time. Clicking it immediately ends the game and restores the document editor to its exact previous state – every element, every layer, and every edit perfectly preserved, as if you never left.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

      Easter Egg: Tetris Hidden inside Open Publisher is a fully playable retro Tetris game, built from scratch with its own standalone game engine, a custom soundtrack, procedurally generated 8-bit sound effects, and a dynamic scoring system. Unlocking it takes exactly one classic cheat code. How to Unlock It At any time while Open Publisher is […]<\/p>\n","protected":false},"author":1,"featured_media":2026,"comment_status":"open","ping_status":"open","template":"","knowledgebase_cat":[24],"class_list":["post-2001","knowledgebase","type-knowledgebase","status-publish","has-post-thumbnail","hentry","knowledgebase_cat-info-settings"],"_links":{"self":[{"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/knowledgebase\/2001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/knowledgebase"}],"about":[{"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/types\/knowledgebase"}],"author":[{"embeddable":true,"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/comments?post=2001"}],"version-history":[{"count":20,"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/knowledgebase\/2001\/revisions"}],"predecessor-version":[{"id":2030,"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/knowledgebase\/2001\/revisions\/2030"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/media\/2026"}],"wp:attachment":[{"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/media?parent=2001"}],"wp:term":[{"taxonomy":"knowledgebase_cat","embeddable":true,"href":"http:\/\/acr.floydcraft.co.uk\/openpublisher\/wp-json\/wp\/v2\/knowledgebase_cat?post=2001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}