dist/stopwatch.js

/**
⏱️
@file stopwatch
@summary time player actions
@license MIT
@author Lenny Magner
@version 22.1.0
@requires Bitsy 8.12


@description
Lets you start, stop and reset a timer from dialogue and print the resulting time as part of dialogue.

Usage:
	(startWatch "timer id"): starts a timer with provided id
	(stopWatch "timer id"): stops a timer with provided id
	(resumeWatch "timer id"): resumes a timer with provided id
	(sayWatch "timer id"): prints a timer with provided id
	(getWatch "timer id"): returns the value of a timer with provided id

There's also startWatchNow, stopWatchNow, and resumeWatchNow,
which do the same things, but immediately instead of when dialog ends.

Notes on edge/error cases:
	(startWatch "existing id"): overwrites existing timer
	(stopWatch "non-existent id"): does nothing
	(stopWatch "stopped id"): does nothing
	(resumeWatch "non-existent id"): starts new timer
	(resumeWatch "running id"): does nothing
	(sayWatch "non-existent id"): throws error
	(getWatch "non-existent id"): throws error

HOW TO USE:
1. Copy-paste into a script tag after the bitsy source
2. Customize `timeToString` function in hackOptions below as needed
3. Add tags to your dialog as needed

NOTE: This uses parentheses "()" instead of curly braces "{}" around function
      calls because the Bitsy editor's fancy dialog window strips unrecognized
      curly-brace functions from dialog text. To keep from losing data, write
      these function calls with parentheses like the examples above.

      For full editor integration, you'd *probably* also need to paste this
      code at the end of the editor's `bitsy.js` file. Untested.
*/
this.hacks = this.hacks || {};
(function (exports, bitsy) {
'use strict';
var hackOptions = {
	// function which returns the string which bitsy will print
	// parameter is a timer object with:
	//   start: value of Date.now() on startWatch
	//   end: value of Date.now() on stopWatch,
	//        or undefined if timer is running
	// current implementation is "minutes:seconds"
	timeToString: function (timer) {
		var ms = getTimeDifferenceInMs(timer);
		var time = new Date(ms);
		var mins = time.getUTCMinutes();
		var secs = time.getUTCSeconds();
		if (secs < 10) {
			secs = '0' + secs;
		}
		return mins + ':' + secs;
	},
};

/**
 * 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$1(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$1(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,
});

// Rewrite custom functions' parentheses to curly braces for Bitsy's
// interpreter. Unescape escaped parentheticals, too.
function convertDialogTags(input, tag) {
	return input.replace(new RegExp('\\\\?\\((' + tag + '(\\s+(".*?"|.+?))?)\\\\?\\)', 'g'), function (match, group) {
		if (match.substr(0, 1) === '\\') {
			return '(' + group + ')'; // Rewrite \(tag "..."|...\) to (tag "..."|...)
		}
		return '{' + group + '}'; // Rewrite (tag "..."|...) to {tag "..."|...}
	});
}

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

function addDialogFunction(tag, fn) {
	kitsy.dialogFunctions = kitsy.dialogFunctions || {};
	if (kitsy.dialogFunctions[tag]) {
		console.warn('The dialog function "' + tag + '" already exists.');
		return;
	}

	// Hook into game load and rewrite custom functions in game data to Bitsy format.
	before('parseWorld', function (gameData) {
		return [convertDialogTags(gameData, tag)];
	});

	kitsy.dialogFunctions[tag] = fn;
}

function injectDialogTag(tag, code) {
	inject(/(var functionMap = \{\};[^]*?)(this.HasFunction)/m, '$1\nfunctionMap["' + tag + '"] = ' + code + ';\n$2');
}

/**
 * Adds a custom dialog tag which executes the provided function.
 * For ease-of-use with the bitsy editor, tags can be written as
 * (tagname "parameters") in addition to the standard {tagname "parameters"}
 *
 * Function is executed immediately when the tag is reached.
 *
 * @param {string}   tag Name of tag
 * @param {Function} fn  Function to execute, with signature `function(environment, parameters, onReturn){}`
 *                       environment: provides access to SetVariable/GetVariable (among other things, see Environment in the bitsy source for more info)
 *                       parameters: array containing parameters as string in first element (i.e. `parameters[0]`)
 *                       onReturn: function to call with return value (just call `onReturn(null);` at the end of your function if your tag doesn't interact with the logic system)
 */
function addDialogTag(tag, fn) {
	addDialogFunction(tag, fn);
	injectDialogTag(tag, 'kitsy.dialogFunctions["' + tag + '"]');
}

/**
 * Adds a custom dialog tag which executes the provided function.
 * For ease-of-use with the bitsy editor, tags can be written as
 * (tagname "parameters") in addition to the standard {tagname "parameters"}
 *
 * Function is executed after the dialog box.
 *
 * @param {string}   tag Name of tag
 * @param {Function} fn  Function to execute, with signature `function(environment, parameters){}`
 *                       environment: provides access to SetVariable/GetVariable (among other things, see Environment in the bitsy source for more info)
 *                       parameters: array containing parameters as string in first element (i.e. `parameters[0]`)
 */
function addDeferredDialogTag(tag, fn) {
	addDialogFunction(tag, fn);
	bitsy.kitsy.deferredDialogFunctions = bitsy.kitsy.deferredDialogFunctions || {};
	var deferred = (bitsy.kitsy.deferredDialogFunctions[tag] = []);
	injectDialogTag(tag, 'function(e, p, o){ kitsy.deferredDialogFunctions["' + tag + '"].push({e:e,p:p}); o(null); }');
	// Hook into the dialog finish event and execute the actual function
	after('onExitDialog', function () {
		while (deferred.length) {
			var args = deferred.shift();
			bitsy.kitsy.dialogFunctions[tag](args.e, args.p, args.o);
		}
	});
	// Hook into the game reset and make sure data gets cleared
	after('clearGameData', function () {
		deferred.length = 0;
	});
}

/**
 * Adds two custom dialog tags which execute the provided function,
 * one with the provided tagname executed after the dialog box,
 * and one suffixed with 'Now' executed immediately when the tag is reached.
 *
 * i.e. helper for the (exit)/(exitNow) pattern.
 *
 * @param {string}   tag Name of tag
 * @param {Function} fn  Function to execute, with signature `function(environment, parameters){}`
 *                       environment: provides access to SetVariable/GetVariable (among other things, see Environment in the bitsy source for more info)
 *                       parameters: array containing parameters as string in first element (i.e. `parameters[0]`)
 */
function addDualDialogTag(tag, fn) {
	addDialogTag(tag + 'Now', function (environment, parameters, onReturn) {
		var result = fn(environment, parameters);
		onReturn(result === undefined ? null : result);
	});
	addDeferredDialogTag(tag, fn);
}

/**
@file utils
@summary miscellaneous bitsy utilities
@author Sean S. LeBlanc
@version 22.1.0
@requires Bitsy 8.12

*/


/**
 * Helper for printing dialog inside of a dialog function.
 * Intended to be called using the environment + onReturn parameters of the original function;
 * e.g.
 * addDialogTag('myTag', function (environment, parameters, onReturn) {
 * 	printDialog(environment, 'my text', onReturn);
 * });
 * @param {Environment} environment Bitsy environment object; first param to a dialog function
 * @param {String} text Text to print
 * @param {Function} onReturn Bitsy onReturn function; third param to a dialog function
 */
function printDialog(environment, text, onReturn) {
	environment.GetDialogBuffer().AddText(text, function () {
		onReturn(null);
	});
}


function getTimeDifferenceInMs(timer) {
	return (timer.end || Date.now()) - timer.start;
}

// map of timers
var timers;

function startWatch(environment, parameters) {
	var id = parameters[0];
	timers[id] = {
		start: Date.now(),
		end: undefined,
	};
}

// note: this updates start time directly
function resumeWatch(environment, parameters) {
	var id = parameters[0];
	var timer = timers[id];

	// just start the timer if there isn't one
	if (!timer) {
		startWatch(environment, parameters);
		return;
	}

	// don't do anything if the timer's not running
	if (!timer.end) {
		return;
	}

	// resume timer
	timer.start = Date.now() - (timer.end - timer.start);
	timer.end = undefined;
}

function stopWatch(environment, parameters) {
	var id = parameters[0];
	var timer = timers[id];
	// don't do anything if there's no timer
	if (!timer) {
		return;
	}
	// don't do anything if the timer's not running
	if (timer.end) {
		return;
	}
	// end timer
	timer.end = Date.now();
}

// clear timers on game-load
before('load_game', function () {
	timers = {};
});

// add control functions
addDualDialogTag('startWatch', startWatch);
addDualDialogTag('stopWatch', stopWatch);
addDualDialogTag('resumeWatch', resumeWatch);

// add display function
addDialogTag('sayWatch', function (environment, parameters, onReturn) {
	var timer = timers[parameters[0]];
	if (!timer) {
		throw new Error('Tried to sayWatch "' + parameters[0] + '" but it was never started');
	}
	printDialog(environment, hackOptions.timeToString(timer), onReturn);
});

// add get function
addDialogTag('getWatch', function (environment, parameters, onReturn) {
	var timer = timers[parameters[0]];
	if (!timer) {
		throw new Error('Tried to getWatch "' + parameters[0] + '" but it was never started');
	}
	onReturn(hackOptions.timeToString(timer));
});

exports.hackOptions = hackOptions;

})(this.hacks.stopwatch = this.hacks.stopwatch || {}, window);