close-on-ending.js

/**
⛔️
@file close on ending
@summary Prevents from playing past an ending
@license MIT
@author Sean S. LeBlanc
@version 22.1.0
@requires Bitsy 8.12


@description
Prevent from playing past an ending.
When an ending is reached, it will prevent the game from being restarted,
the bitsy game canvas will be removed, and it will attempt to close the window.
Windows can't always be closed due to browser security reasons;
rendering the game unresponsive is the best that can be done in that situation.

NOTE: This hack also disables the ctrl+r restart prompt,
but players will still be able to manually refresh or close/re-open the page to restart.

HOW TO USE:
Copy-paste this script into a script tag after the bitsy source
*/
(function (bitsy) {
'use strict';

/**
 * Helper used to replace code in a script tag based on a search regex.
 * To inject code without erasing original string, using capturing groups; e.g.
 * ```js
 * inject(/(some string)/,'injected before $1 injected after');
 * ```
 * @param searcher Regex to search and replace
 * @param replacer Replacer string/fn
 */
function inject(searcher, replacer) {
    // find the relevant script tag
    var scriptTags = document.getElementsByTagName('script');
    var scriptTag;
    var code = '';
    for (var i = 0; i < scriptTags.length; ++i) {
        scriptTag = scriptTags[i];
        if (!scriptTag.textContent)
            continue;
        var matchesSearch = scriptTag.textContent.search(searcher) !== -1;
        var isCurrentScript = scriptTag === document.currentScript;
        if (matchesSearch && !isCurrentScript) {
            code = scriptTag.textContent;
            break;
        }
    }
    // error-handling
    if (!code || !scriptTag) {
        throw new Error('Couldn\'t find "' + searcher + '" in script tags');
    }
    // modify the content
    code = code.replace(searcher, replacer);
    // replace the old script tag with a new one using our modified code
    var newScriptTag = document.createElement('script');
    newScriptTag.textContent = code;
    scriptTag.insertAdjacentElement('afterend', newScriptTag);
    scriptTag.remove();
}
/**
 * Helper for getting an array with unique elements
 * @param  {Array} array Original array
 * @return {Array}       Copy of array, excluding duplicates
 */
function unique(array) {
    return array.filter(function (item, idx) {
        return array.indexOf(item) === idx;
    });
}
// Ex: inject(/(names.sprite.set\( name, id \);)/, '$1console.dir(names)');
/** test */
function kitsyInject(searcher, replacer) {
    if (!kitsy.queuedInjectScripts.some(function (script) {
        return searcher.toString() === script.searcher.toString() && replacer === script.replacer;
    })) {
        kitsy.queuedInjectScripts.push({
            searcher: searcher,
            replacer: replacer,
        });
    }
    else {
        console.warn('Ignored duplicate inject');
    }
}
// Ex: before('load_game', function run() { alert('Loading!'); });
//     before('show_text', function run(text) { return text.toUpperCase(); });
//     before('show_text', function run(text, done) { done(text.toUpperCase()); });
function before$1(targetFuncName, beforeFn) {
    kitsy.queuedBeforeScripts[targetFuncName] = kitsy.queuedBeforeScripts[targetFuncName] || [];
    kitsy.queuedBeforeScripts[targetFuncName].push(beforeFn);
}
// Ex: after('load_game', function run() { alert('Loaded!'); });
function after$1(targetFuncName, afterFn) {
    kitsy.queuedAfterScripts[targetFuncName] = kitsy.queuedAfterScripts[targetFuncName] || [];
    kitsy.queuedAfterScripts[targetFuncName].push(afterFn);
}
function applyInjects() {
    kitsy.queuedInjectScripts.forEach(function (injectScript) {
        inject(injectScript.searcher, injectScript.replacer);
    });
}
function applyHooks(root) {
    var allHooks = unique(Object.keys(kitsy.queuedBeforeScripts).concat(Object.keys(kitsy.queuedAfterScripts)));
    allHooks.forEach(applyHook.bind(this, root || window));
}
function applyHook(root, functionName) {
    var functionNameSegments = functionName.split('.');
    var obj = root;
    while (functionNameSegments.length > 1) {
        obj = obj[functionNameSegments.shift()];
    }
    var lastSegment = functionNameSegments[0];
    var superFn = obj[lastSegment];
    var superFnLength = superFn ? superFn.length : 0;
    var functions = [];
    // start with befores
    functions = functions.concat(kitsy.queuedBeforeScripts[functionName] || []);
    // then original
    if (superFn) {
        functions.push(superFn);
    }
    // then afters
    functions = functions.concat(kitsy.queuedAfterScripts[functionName] || []);
    // overwrite original with one which will call each in order
    obj[lastSegment] = function () {
        var returnVal;
        var args = [].slice.call(arguments);
        var i = 0;
        function runBefore() {
            // All outta functions? Finish
            if (i === functions.length) {
                return returnVal;
            }
            // Update args if provided.
            if (arguments.length > 0) {
                args = [].slice.call(arguments);
            }
            if (functions[i].length > superFnLength) {
                // Assume funcs that accept more args than the original are
                // async and accept a callback as an additional argument.
                return functions[i++].apply(this, args.concat(runBefore.bind(this)));
            }
            // run synchronously
            returnVal = functions[i++].apply(this, args);
            if (returnVal && returnVal.length) {
                args = returnVal;
            }
            return runBefore.apply(this, args);
        }
        return runBefore.apply(this, arguments);
    };
}
/**
@file kitsy-script-toolkit
@summary Monkey-patching toolkit to make it easier and cleaner to run code before and after functions or to inject new code into script tags
@license WTFPL (do WTF you want)
@author Original by mildmojo; modified by Sean S. LeBlanc
@version 22.1.0
@requires Bitsy 8.12

*/
var kitsy = (window.kitsy = window.kitsy || {
    queuedInjectScripts: [],
    queuedBeforeScripts: {},
    queuedAfterScripts: {},
    inject: kitsyInject,
    before: before$1,
    after: after$1,
    /**
     * Applies all queued `inject` calls.
     *
     * An object that instantiates an class modified via injection will still refer to the original class,
     * so make sure to reinitialize globals that refer to injected scripts before calling `applyHooks`.
     */
    applyInjects,
    /** Apples all queued `before`/`after` calls. */
    applyHooks,
});

var hooked = kitsy.hooked;
if (!hooked) {
	kitsy.hooked = true;
	var oldStartFunc = bitsy.startExportedGame;
	bitsy.startExportedGame = function doAllInjections() {
		// Only do this once.
		bitsy.startExportedGame = oldStartFunc;

		// Rewrite scripts
		kitsy.applyInjects();

		// recreate the script and dialog objects so that they'll be
		// referencing the code with injections instead of the original
		bitsy.scriptModule = new bitsy.Script();
		bitsy.scriptInterpreter = bitsy.scriptModule.CreateInterpreter();

		bitsy.dialogModule = new bitsy.Dialog();
		bitsy.dialogRenderer = bitsy.dialogModule.CreateRenderer();
		bitsy.dialogBuffer = bitsy.dialogModule.CreateBuffer();
		bitsy.renderer = new bitsy.TileRenderer(bitsy.tilesize);
		bitsy.transition = new bitsy.TransitionManager();

		// Hook everything
		kitsy.applyHooks();

		// Start the game
		bitsy.startExportedGame.apply(this, arguments);
	};
}

/** @see kitsy.inject */
kitsy.inject;
/** @see kitsy.before */
var before = kitsy.before;
/** @see kitsy.after */
var after = kitsy.after;



var closed = false;

// prevent ctrl+r restart prompt
before('bitsy.button', function (button) {
	if (closed) return [-1];
	if (button === bitsy.bitsy.BTN_MENU) return [-1];
	return [button];
});

after('onExitDialog', function () {
	if (bitsy.isEnding) {
		// prevent further input
		closed = true;
		// remove canvas
		// eslint-disable-next-line no-underscore-dangle
		bitsy.bitsy._getCanvas().remove();
		// attempt to close
		window.close();
	}
});

})(window);