var modName = "mods/prompt.js";
var variablesMod = "mods/prop and prompt variables.js";
var promptInputNullishes = ["null","none","","n/a"];
var eightSpaces = " ".repeat(8);

if(enabledMods.includes(variablesMod)) {
	commandHelpObject = {
		"set": "Sets properties for every pixel of a given type.\nUsage: set [property] [element] [value] <type>\nDon't include framing characters []<>.\nThe element can be \"all\" to set the property for every pixel.\nNote: Strings can't have spaces because spaces are the separator used in the parsing split().\nArguments in [brackets] are required and ones in <angle brackets> are optional.",

		"test": "Test.",

		"setdimensions": "#This command clears the canvas#\nSets the width and height of the canvas and resets it to regenerate pixelMap.\nThis is offsetted so it doesn't count the OoB area on the top left; a 50x50 save will have a 50x50 usable area.\nUsage: setdimensions [width] [height] <pixel rendering size>.\nDon't include framing characters []<>.\nArguments in [brackets] are required and ones in <angle brackets> are optional.",

		"pixelsize": "Sets the size of the pixels on screen. If no size is given, it instead alerts the current pixel size. Usage: pixelsize <pixel rendering size>.\nDon't include framing characters <>.\nArguments in <angle brackets> are optional.",

		"dimensions": "Alerts the current dimensions. Usage: dimensions",

		"fill": "Fills the screen with the given pixel(s). Usage: fill [Overwrite pixels? (bool)] [element] <additional elements>.\nDon't include framing characters []<>.\nArguments in [brackets] are required and ones in <angle brackets> are optional.\nAdditional elements are separated by spaces.",

		"randomfill": "Fills the screen with pixels from randomChoices. Usage: randomfill <overwrite pixels? (bool, default: true)>\nDon't include framing characters []<>.\nArguments in <angle brackets> are optional.",

		"count": "Tells you the amount of a specified pixel on the screen. Usage: count [element]\nDon't include framing characters []<>.\nArguments in [brackets] are required.",

		"countall": "Logs to console a list of all elements on screen and their amounts. Usage: countall.",

		"worldgen": 
`Names or sets the current world type, lists all world types, or generates a given world type.
Usages:
${eightSpaces}Show the current worldgen setting: worldgen
${eightSpaces}List all available worldgen settings: worldgen list
${eightSpaces}Set the current worldgen setting: worldgen set [setting]
${eightSpaces}Generate a specified worldgen setting: worldgen generate [setting]`,
		
		"defineworldgen":
`Creates or replaces a worldgen preset.
Usage (See below for formats):  [name] [layers] <baseHeight> <heightVariance> <complexity> <temperature> <decor>.
Don't include framing characters []<>.
Arguments in [brackets] are required and ones in <angle brackets> are optional.",

(Required) name: String. Cannot have spaces. Example: grass
(Required) layers: 
${eightSpaces}Each layer is specified as [RelativeBottomStartPosition:ElementName]<:PixelProbability>
${eightSpaces}Layers are joined with the semicolon ;
${eightSpaces}Layer definitions must not have any spaces.
${eightSpaces}Example full layer definition: 0.85:grass;0.5:dirt;0.05:rock;-0.2:basalt`,

		"defineworldgen2":
`(Optional) baseHeight: Number (ideally between 0 and 1). Default: 0.5.
(Optional) heightVariance: Number. Default: 0.5.
(Optional) complexity: Number. Default: 20.
(Optional) temperature: Number. No default value (use null or none to skip).
(Optional) decor:
${eightSpaces}Each decor layer is specified as [ElementName:PixelProbability]<:DistanceFromTop><:ListOfHexColors>
${eightSpaces}Distance from top, if not specified, defaults to 5.
${eightSpaces}The fourth part (optional) is a list of hex codes (like #FFFFFF) separated by commas.
${eightSpaces}Example full decor definition: bird:0.04:10:#FF0000,#FFFF00,#00FF00;diamond:0.3:5`,

		"help": "Usage: help <command>\nDon't include framing characters []<>\nArguments in <angle brackets> are optional."
	};
	
	if(enabledMods.includes("mods/code_library.js")) {
		commandHelpObject.stars = "Clears the screen and replaces it with random stars. Usage: stars <density (number, default: 0.001)> <seed (string or number, no default value)>\nDon't include framing characters <>.\nArguments in <angle brackets> are optional."
		commandHelpObject.starseed = "Alerts the last used seed for stars. Usage: starseed";
		var lastStarSeed = "[None]";
		function seededCreateLargeStar(x,y,minRadius,maxRadius,minTemp,maxTemp,randomFunction) {
			//console.log("start");
			var sunPixels = fillCircleReturn("sun",x,y,seededRandBetween(minRadius,maxRadius,randomFunction),true);
			//console.log("filled");
			var randTemp = seededRandBetween(minTemp,maxTemp,randomFunction);
			//console.log("setting temps");
			for(pixelIndex = 0; pixelIndex < sunPixels.length; pixelIndex++) {
				//console.log("pixel " + pixelIndex, sunPixels[pixelIndex].element);
				sunPixels[pixelIndex].temp = randTemp;
			};
			//console.log(sunPixels.map(x => x.element));
			//console.log("finished");
			return true;
		};
		
			//G
		elements.red_giant = {
			color: "#f19898",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,3,4,1800,3300,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

		elements.blue_giant = {
			color: "#a085eb",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,2,3,20000,80000,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

		elements.yellow_giant = {
			color: "#fafad4",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,2,3,6000,11000,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

			//SG
		elements.red_supergiant = {
			color: "#f48585",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,6,8,1700,3200,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

		elements.blue_supergiant = {
			color: "#93b0ec",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,5,7,19000,83000,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

		elements.yellow_supergiant = {
			color: "#f4f9ae",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,5,7,5500,10500,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

			//HG
		elements.red_hypergiant = {
			color: "#ee5d5d",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,9,12,1600,3100,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

		elements.blue_hypergiant = {
			color: "#719df4",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,8,11,18000,84000,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};

		elements.yellow_hypergiant = {
			color: "#f7f990",
			behavior: behaviors.WALL,
			tick: function(pixel) {
				seededCreateLargeStar(pixel.x,pixel.y,8,11,5000,10000,Math.random);
			},
			category: "stars",
			state: "gas",
			excludeRandom: true,
			maxSize: 1,
			cooldown: defaultCooldown,
			density: 1000,
		};
	};

	function rgbStringToUnvalidatedObject(string) {
		string = string.split(",");
		var red = parseFloat(string[0].substring(4));
		var green = parseFloat(string[1]);
		var blue = parseFloat(string[2].slice(0,-1));
		return {r: red, g: green, b: blue};
	}

	function hslStringToUnvalidatedObject(string) {
		string = string.split(",");
		var hue = parseFloat(string[0].substring(4));
		var saturation = parseFloat(string[1].slice(0,-1));
		var lightness = parseFloat(string[2].slice(0,-2));
		return {h: hue, s: saturation, l: lightness};
	}

	function rebuildWorldgenList() { //vanilla code
		for (var key in worldgentypes) {
			document.getElementById("worldgenselect").innerHTML += "<option value='" + key + "'>" + key.replace(/_/g, " ").replace(/\b\w/g, l => l.toUpperCase()) + "</option>";
		}
	};

	function bareClear() {
		currentPixels = [];
		pixelMap = [];
		for (var i = 0; i < width; i++) {
			pixelMap[i] = [];
			for (var j = 0; j < height; j++) {
				pixelMap[i][j] = undefined;
			}
		}
	};

	function alertIfError(alertError,text) {
		if(alertError) {
			alert(text);
			return(true);
		} else {
			return(false);
		}
	}

	function alertIfOutput(alertOutput,text) {
		if(alertOutput) { 
			alert(text);
			return(true);
		} else {
			return(false);
		}
	}

	function parsefloatFirst(arr) { var array = arr; array[0] = parseFloat(array[0]); return array };
	function stringToLayers(string) {
		return string.split(";").map(x => x.split(":")).map(y => parsefloatFirst(y));
	};

	function validateSingleHexCode(hexCode) {
		return !!"#FFFFFF".match(/^#[0-9A-F]{6}$/);
	};

	function validateHexColorArray(colorsArray) {
		if(!(colorsArray instanceof Array)) {
			return false;
		};
		if(colorsArray.length == 0) {
			return false;
		};
		var colorsIsValid = 1;
		for(var i in colorsArray) {
			colorsIsValid *= validateSingleHexCode(colorsArray[i]);
		};
		return !!colorsIsValid;
	};

	function validateSingleLayer(layerArray) {
		if(layerArray.length < 2) {
			return false;
		};
		if(isNaN(layerArray[0])) {
			return false;
		};
		if(typeof(layerArray[1]) !== "string") {
			return false;
		};
		if(!elements[layerArray[1]]) {
			return false;
		};
		if(typeof(layerArray[2]) !== "undefined") {
			if(isNaN(layerArray[2])) {
				return false
			};
		};
		return true;
	};

	function validateLayersStructure(layersArray) {
		if(!(layersArray instanceof Array)) {
			return false;
		};
		if(layersArray.length == 0) {
			return false;
		};
		var layersIsValid = 1;
		for(var i in layersArray) {
			layersIsValid *= validateSingleLayer(layersArray[i]);
		};
		return !!layersIsValid;
	};

	function stringToDecor(string) {
		decorLayers = string.split(";").map(x => x.split(":"));
		for(var q in decorLayers) {
			var decorLayer = decorLayers[q];
			if(decorLayer[1]) {
				decorLayer[1] = parseFloat(decorLayer[1]);
			};
			if(decorLayer[2]) {
				decorLayer[2] = parseInt(decorLayer[2]);
			};
			if(decorLayer[3]) {
				decorLayer[3] = decorLayer[3].split(",");
			};
		};
		return decorLayers;
	};
	//console.log(stringToDecor("bird:0.025:10:#FF0000,#FFFF00,#00FF00"));
	
	function validateSingleDecorLayer(decorLayer) {
		if(decorLayer.length < 2) {
			return false;
		};
		if(!elements[decorLayer[0]]) {
			return false;
		};
		if(isNaN(decorLayer[1])) {
			return false;
		};
		if(typeof(decorLayer[2]) !== "undefined") {
			if(isNaN(decorLayer[2])) {
				return false;
			};
		};
		if(typeof(decorLayer[3]) !== "undefined") {
			if(!(validateHexColorArray(decorLayer[3]))) {
				return false;
			};
		};
		return true;
	};

	function validateDecorStructure(decorArraysArray) {
		if(!(decorArraysArray instanceof Array)) {
			return false;
		};
		if(decorArraysArray.length == 0) {
			return false;
		};
		var decorIsValid = 1;
		for(var i in decorArraysArray) {
			decorIsValid *= validateSingleDecorLayer(decorArraysArray[i]);
		};
		return !!decorIsValid;
	};

	function funniPrompt(argument=null,alertOutput=true,alertError=true) {
		argument === null ? inputText = prompt("Enter command") : inputText = argument;
		// replace spaces with underscores
		if(["",null].includes(inputText)) {
			console.log("Prompt canceled");
			return false;
		};
		//console.log(inputText);
		if(inputText.includes("|")) {
			var commands = inputText.split("|");
			var results = []; results.length = commands.length;
			for(var cmdi in commands) {
				commands[cmdi] = commands[cmdi].trim();
				try {
					results[cmdi] = funniPrompt(commands[cmdi]);
				} catch(error) {
					results[cmdi] = error;
				};
			};
			console.log(results);
			return results;
		};
		inputAsArray = inputText.split(" ");
		var firstItem = inputAsArray[0];
		
		switch(firstItem.toLowerCase()) {
			case "set":
				if(inputAsArray.length < 4) {
					alertIfError(alertError,"Usage: set [property] [element] [value] <type>\nDon't include framing characters []<>.\nThe element can be \"all\" to set the property for every pixel.\nNote: Strings can't have spaces because spaces are the separator used in the parsing split().\nArguments in [brackets] are required and ones in <angle brackets> are optional.");
					return false;
				};
				var property = inputAsArray[1];
				//console.log("Property gotten: " + property);
				var inputElement = inputAsArray[2];
				//console.log("Element gotten: " + inputElement);
				var value = inputAsArray[3];
				//console.log("Value gotten: " + value);
				var type = null; //dummy type for [value]-based assumption
				if(inputAsArray.length >= 5) {
					type = inputAsArray[4];
				};
				//console.log("Type gotten: " + type);
				
				if(type === null) {
					type = null; //catch null type
				} else if(numberSynonyms.includes(type.toLowerCase())) {
					type = "number";
				} else if(booleanSynonyms.includes(type.toLowerCase())) {
					type = "boolean";
				} else if(stringSynonyms.includes(type.toLowerCase())) {
					type = "string";
				} else if(arraySynonyms.includes(type.toLowerCase())) {
					type = "array";
				} else if(objectSynonyms.includes(type.toLowerCase())) {
					type = "object";
				};

				var typeWhitelist = [null,"string","number","boolean","array","object"];
				if(!typeWhitelist.includes(type)) {
					alertIfError(alertError,"Unrecognized type: \"" + type + "\".");
					return false;
				};
				
				if(type === null) {
					if(defaultStringTypeValues.includes(property)) {
						type = "string";
					} else if(defaultNumberTypeValues.includes(property)) {
						type = "number";
					} else if(defaultBooleanTypeValues.includes(property)) {
						type = "boolean";
					} else if(defaultArrayTypeValues.includes(property)) {
						type = "array";
					} else {
						alertIfError(alertError,"Type could not be assumed from property. Please specify the type as a fourth argument.");
						return false;
					}
				}
				
				if(type === "number") {
					value = parseFloat(value);
					if(isNaN(value)) {
						alertIfError(alertError,"Value is not a number!");
						return false;
					};
				} else if(type === "boolean") {
					if(synonymsOfTrue.includes(value.toLowerCase())) {
						value = true;
					} else if(synonymsOfFalse.includes(value.toLowerCase())) {
						value = false;
					} else {
						alertIfError(alertError,"Unrecognized boolean value: " + value + ".");
						return false;
					}
				} else if(type === "object") {
					try {
						value = JSON.parse(value);
					} catch (error) {
						alertIfError(alertError,"JSON is invalid! Note that it requires quotes around keys as well as those curly {} parentheses.");
						return false;
					};
				} else if(type === "array") {
					array = value.split(",");
					for(i = 0; i < array.length; i++) {
						if(array[i].startsWith("s")) { //String
							array[i] = array[i].substring(1);
						} else if(array[i].startsWith("n")) { //Number
							array[i] = array[i].substring(1);
							if(isNaN(parseFloat(array[i]))) {
								alert(array[i] + " is not a number!");
								return false;
							};
							array[i] = parseFloat(array[i]);
						} else if(array[i].startsWith("o")) { //Object
							array[i] = array[i].substring(1);
							try {
								array[i] = JSON.parse(array[i]);
							} catch (error) {
								alert(array[i] + " is not valid JSON!");
								return false;
							};
						} else if(array[i].startsWith("b")) { //Boolean
							array[i] = array[i].substring(1);
							if(synonymsOfTrue.includes(array[i].toLowerCase())) {
								array[i] = true;
							} else if(synonymsOfFalse.includes(array[i].toLowerCase())) {
								array[i] = false;
							} else {
								alert("Unrecognized boolean value: " + array[i] + ".");
								return false;
							};
						} else {
							alert(array[i] + ' must start with "s" for a string, "n" for a number, "o" for an object, or "b" for a boolean.');
							return false;
						};
					};
					value = array;
				}
				//The values start out as strings when split from the array, so string is kind of the default form.
				
				//Special validation
				
				if(property === "element") {
					var originalInput = value; //for error display
					value = mostSimilarElement(value);
					if(!elements[value]) {
						alertIfError(alertError,"Element " + originalInput + " does not exist!");
						return false;
					}
				};
				if(property === "x") {
					if(!Number.isSafeInteger(value)) {
						alertIfError(alertError,"X cannot be a decimal! And what are you doing trying to set position values anyway?");
						return false;
					}
				};
				if(property === "color") {
					if(!value.startsWith("rgb(")) { //if not RGB
						if(value.startsWith("hsl(")) { //if HSL
							if(!(value.split(",")[1].endsWith('%')) || !(value.split(",")[2].endsWith('%)'))) { //if missing percent symbols
								alertIfError(alertError,colorInvalidError);
								return false;
							};
						} else { //if not RGB and not HSL
							alertIfError(alertError,colorInvalidError);
							return false;
						};
					}
					if(value.split(",").length !== 3) { //if too short or long
						alertIfError(alertError,colorInvalidError);
						return false;
					}
					if(value.startsWith("rgb(")) { //if RGB
						var checkedColorObject = rgbStringToUnvalidatedObject(value); //RGB NaN checking
						if(isNaN(checkedColorObject.r) || isNaN(checkedColorObject.g) || isNaN(checkedColorObject.b)) {
							//console.log(checkedColorObject);
							alertIfError(alertError,"One or more color values are invalid!");
							return false;
						};
					} else if(value.startsWith("hsl(")) { //if HSL
						var checkedColorObject = hslStringToUnvalidatedObject(value); //HSL NaN checking
						if(isNaN(checkedColorObject.h) || isNaN(checkedColorObject.s) || isNaN(checkedColorObject.l)) {
							//console.log(checkedColorObject);
							alertIfError(alertError,"One or more color values are invalid!");
							return false;
						};
					} else { //if neither
						alertIfError(alertError,colorInvalidError);
						return false;
					};
				};
				
				//Actual setting code;
				var setCount = 0;
				for (var i = 1; i < width; i++) {
					for (var j = 1; j < height; j++) {
						if (!isEmpty(i,j)) {
							//console.log("Pixel (" + i + "," + j + ") exists")
							if(pixelMap[i][j].element === inputElement || inputElement === "all") {
								//console.log("Element is a match: " + inputElement + ", " + pixelMap[i][j].element)
								pixelMap[i][j][property] = value;
								if(property == "temp") { pixelTempCheck(pixelMap[i][j]) };
								setCount++;
							};
						};
					};
				};
				inputElement === "all" ? alertIfOutput(alertOutput,`Set ${property} of ${setCount} pixels to ${value}.`) : alertIfOutput(alertOutput,`Set ${property} of ${setCount} ${inputElement} pixels to ${value}.`)
				return true;
			case "test":
				alertIfOutput(alertOutput,"pong");
				console.log("qwertyuiopasdfghjklzxcvbnm");
				return true;
			case "setdimensions":
				if(inputAsArray.length < 3) {
					alertIfError(alertError,commandHelpObject.setdimensions);
					return false;
				};

				var argWidth = inputAsArray[1];

				var argHeight = inputAsArray[2];

				var argPixelSize = inputAsArray[3];
				
				if(argWidth == undefined) {
					alertIfError(alertError,commandHelpObject.setdimensions);
					return false;
				} else {
					argWidth = parseInt(argWidth);
					if(isNaN(argWidth)) {
						alert("Error: width was NaN");
						console.error("setdimensions: supplied width was NaN");
						return false;
					} else {
						if(argWidth < 1) {
							alert("Width must be greater than 0");
							console.error("setdimensions: supplied width was zero or negative");
							return false;
						};
					};
				};
				
				if(argHeight == undefined) {
					alertIfError(alertError,commandHelpObject.setdimensions);
					return false;
				} else {
					argHeight = parseInt(argHeight);
					if(isNaN(argHeight)) {
						alert("Error: height was NaN");
						console.error("setdimensions: supplied height was NaN");
						return false;
					} else {
						if(argHeight < 1) {
							alert("Height must be greater than 0");
							console.error("setdimensions: supplied height was zero or negative");
							return false;
						};
					};
				};
				
				if(argPixelSize == undefined) {
					argPixelSize = null;
				} else {
					argPixelSize = parseFloat(argPixelSize);
					if(isNaN(argPixelSize)) {
						argPixelSize = null;
						alert("pixelSize was NaN, ignoring");
						console.log("setdimensions: supplied pixelSize was NaN");
					} else {
						if(argPixelSize <= 0) {
							alert("Pixel size was non-positive, ignoring");
							console.error("setdimensions: supplied pixel size was zero or negative");
							argPixelSize = null;
						};
					};
				};
				
				width = argWidth + 1;
				
				height = argHeight + 1;
				
				if(typeof(argPixelSize) === "number" && argPixelSize !== null && !isNaN(argPixelSize)) {
					if(argPixelSize > 0) {
						pixelSize = argPixelSize;
					};
				};

				clearAll();

				return true;
			case "pixelsize":
				if(inputAsArray.length < 1) { //?
					alertIfError(alertError,commandHelpObject.setpixelsize);
					return false;
				};

				var argPixelSize = inputAsArray[1];
				
				if(argPixelSize == undefined) {
					argPixelSize = null;
				} else {
					argPixelSize = parseFloat(argPixelSize);
					if(isNaN(argPixelSize)) {
						alert("Error: size was NaN");
						console.error("setpixelsize: supplied pixel size was NaN");
						return false;
					};
				};
				
				if(typeof(argPixelSize) === "number" && argPixelSize !== null && !isNaN(argPixelSize)) {
					if(argPixelSize <= 0) {
						alert("Pixel size must be greater than 0");
						console.error("setpixelsize: supplied pixel size was zero or negative");
						return false;
					} else {
						pixelSize = argPixelSize;
					};
				} else {
					alert(pixelSize);
				};

				return pixelSize;
			case "dimensions":
				if(inputAsArray.length < 1) { //?
					alertIfError(alertError,commandHelpObject.dimensions);
					return false;
				};

alert(`width: ${width}
height: ${height}
(Usable area is 1 pixel less in both dimensions)`);

				return [width,height];
			case "fill":
				if(inputAsArray.length < 3) {
					alertIfError(alertError,commandHelpObject.fill);
					return false;
				};
				
				var doOverwrite = inputAsArray[1];
				
				var elementList = inputAsArray.slice(2);
				//console.log(elementList);
				
				for(i = 0; i < elementList.length; i++) {
					var elementInConsideration = elementList[i]
					var originalElement = elementInConsideration; //also for error display
					elementInConsideration = mostSimilarElement(elementInConsideration);
					if(!elements[elementInConsideration]) {
						alertIfError(alertError,"Element " + originalElement + " does not exist!");
						return false;
					}
					elementList[i] = elementInConsideration;
				};
				//console.log(elementList);
				
				if(synonymsOfTrue.includes(doOverwrite.toLowerCase())) {
					doOverwrite = true;
				} else if(synonymsOfFalse.includes(doOverwrite.toLowerCase())) {
					doOverwrite = false;
				} else {
					alertIfError(alertError,"Unrecognized boolean value: " + doOverwrite + "\n Note that for this command, the boolean value goes first.");
					return false;
				}
				//console.log(doOverwrite);
				//console.log(elementList);
				
				//Fill code
				var fillCount = 0;
				for (var i = 1; i < width; i++) {
					for (var j = 1; j < height; j++) {
						var randomElement = elementList[Math.floor(Math.random() * elementList.length)];
						if(doOverwrite) {
							if(!isEmpty(i,j,true)) { deletePixel(i,j) };
						};
						if (isEmpty(i,j,false)) {
							createPixel(randomElement,i,j);
							fillCount++;
						};
					};
				};
				alertIfOutput(alertOutput,`Placed ${fillCount} pixels`);
				return fillCount;
			case "randomfill":
				if(inputAsArray.length < 1) { //somehow?
					alertIfError(alertError,"Usage: randomfill <overwrite (should be a bool) (default: true)>\nDon't include framing characters []<>.\nArguments in <angle brackets> are optional.");
					return false;
				};
				
				var doOverwrite = null;
				
				if(inputAsArray.length > 1) {
					var doOverwrite = inputAsArray[1];
					if(synonymsOfTrue.includes(doOverwrite.toLowerCase())) {
						doOverwrite = true;
					} else if(synonymsOfFalse.includes(doOverwrite.toLowerCase())) {
						doOverwrite = false;
					} else {
						alertIfError(alertError,"Unrecognized boolean value: " + value);
						return false;
					};
				} else {
					doOverwrite = true;
				};
				
				var elementList = randomChoices;
				
				//Fill code
				var fillCount = 0;
				for (var i = 1; i < width; i++) {
					for (var j = 1; j < height; j++) {
						var randomElement = elementList[Math.floor(Math.random() * elementList.length)];
						if(doOverwrite) {
							if(!isEmpty(i,j,true)) { deletePixel(i,j) };
						};
						if (isEmpty(i,j,false)) {
							createPixel(randomElement,i,j);
							fillCount++;
						};
					};
				};
				alertIfOutput(alertOutput,`Placed ${fillCount} random pixels`);
				return fillCount;
			case "count":
				if(inputAsArray.length < 2) {
					alertIfError(alertError,"Usage: count [element]\nDon't include framing characters []<>.\nNote: The element name can't have a space in it because spaces are the separator used in the parsing split().\nArguments in [brackets] are required.");
					return false;
				};
				var inputElement = inputAsArray[1];
				//console.log("Element gotten: " + inputElement);

				var originalInput = inputElement; //for error display
				inputElement = mostSimilarElement(inputElement);
				//console.log("Element gotten: " + inputElement);
				if(typeof(elements[inputElement]) === "undefined") {
					alertIfError(alertError,"Element " + originalInput + " does not exist!");
					return false;
				}
				
				//Actual counting code;
				var count = 0;
				for (var i = 1; i < width; i++) {
					for (var j = 1; j < height; j++) {
						if (!isEmpty(i,j)) {
							//console.log("Pixel (" + i + "," + j + ") exists")
							if(pixelMap[i][j].element === inputElement) {
								//console.log("Element is a match: " + inputElement + ", " + pixelMap[i][j].element)
								count++;
							};
						};
					};
				};
				alertIfOutput(alertOutput,`There are ${count} pixels of ${inputElement}`);
				return count;
			case "countall":
				var listObject = {};

				//Listing code;
				for (var i = 1; i < width; i++) {
					for (var j = 1; j < height; j++) {
						if (!isEmpty(i,j)) {
							var pixel = pixelMap[i][j];
							var element = pixel.element;
							if(!listObject[pixel.element]) {
								listObject[pixel.element] = 1;
							} else {
								listObject[pixel.element]++;
							}
						};
					};
				};
				
				var formattedList = "";
				var zelements = Object.keys(listObject);
				for(k = 0; k < zelements.length; k++) {
					var elementName = zelements[k];
					var elementCount = listObject[elementName];
					formattedList += `${elementName}: ${elementCount}\n`;
				};
				
				alertIfOutput(alertOutput,"Elements counts logged to console");
				console.log(formattedList);
				return listObject;
			case "wg":
			case "worldgen":
				if(inputAsArray.length < 1) {
					alertIfError(alertError,commandHelpObject.worldgen);
					return false;
				};

				var action = inputAsArray[1];
				if(!action) {
					alertIfOutput(`Current worldgen setting: ${settings.worldgen}`);
					return settings.worldgen;
				};
				
				var worldgenTypesList = Object.keys(worldgentypes).concat(["off"]);
				if(["list","lst","ls","l"].includes(action)) {
					alertIfOutput(alertOutput,worldgenTypesList.join(",  "));
					console.log(worldgenTypesList.map(x => "   " + x).join("\n"));
					return worldgenTypesList;
				} else {
					var targetPreset = inputAsArray[2];
					if(!targetPreset) {
						alertIfError(alertError,commandHelpObject.worldgen);
						return false;
					};
					if(!(worldgenTypesList.includes(targetPreset))) {
						alertIfError(alertError,`No such preset ${targetPreset}!`);
						return false;
					};
					if(["select","sel","pick","set","s"].includes(action)) {
						settings.worldgen = targetPreset;
						alertIfOutput(alertOutput,`Worldgen setting set to ${targetPreset}`);
						return true;
					} else if(["generate","gen","make","worldgen","wg","g","w","world","run","do","world"].includes(action)) {
						bareClear();
						if(targetPreset == "off") {
							alertIfOutput(alertOutput,`Cleared world`);
						} else {
							console.log(targetPreset,worldgentypes[targetPreset].complexity);
							worldGen(worldgentypes[targetPreset]);
							alertIfOutput(alertOutput,`Generated preset ${targetPreset}`);
						};
						return true;
					} else {
						alertIfError(alertError,commandHelpObject.worldgen);
						return false;
					};
				};
				return true;
			case "dwg":
			case "defineworldgen":
				if(inputAsArray.length < 3) {
					alertIfError(commandHelpObject.defineworldgen);
					alertIfError(commandHelpObject.defineworldgen2);
					return false;
				};
				var presetName = inputAsArray[1];
				//overwrite confirm below

				var newPreset = {};

				var layers = stringToLayers(inputAsArray[2]);
				if(!validateLayersStructure(layers)) {
					alertIfError(alertError,"Layers definition is invalid or malformed!");
					return false;
				};
				newPreset.layers = layers;

				var baseHeight = inputAsArray[3];
				if(typeof(baseHeight) !== "undefined") {
					if(promptInputNullishes.includes(baseHeight)) {
						baseHeight = "0.5";
					};
					baseHeight = parseFloat(baseHeight);
					if(isNaN(baseHeight)) {
						alertIfError(alertError,"Invalid baseHeight!");
						return false;
					};
					newPreset.baseHeight = baseHeight;
				};

				var heightVariance = inputAsArray[4];
				if(typeof(heightVariance) !== "undefined") {
					if(promptInputNullishes.includes(heightVariance)) {
						heightVariance = "0.5";
					};
					heightVariance = parseFloat(heightVariance);
					if(isNaN(heightVariance)) {
						alertIfError(alertError,"Invalid heightVariance!");
						return false;
					};
					newPreset.heightVariance = heightVariance;
				};

				var complexity = inputAsArray[5];
				if(typeof(complexity) !== "undefined") {
					if(promptInputNullishes.includes(complexity)) {
						complexity = "20";
					};
					complexity = parseFloat(complexity);
					if(isNaN(complexity)) {
						alertIfError(alertError,"Invalid complexity!");
						return false;
					};
					newPreset.complexity = complexity;
				};

				var temperature = inputAsArray[6];
				if(typeof(temperature) !== "undefined") {
					if(promptInputNullishes.includes(temperature.toLowerCase())) {
						temperature = null;
					} else {
						temperature = parseFloat(temperature);
						if(isNaN(temperature)) {
							alertIfError(alertError,"Invalid temperature!");
							return false;
						};
						newPreset.temperature = temperature;
					};
				};

				var decor = inputAsArray[7];
				if(typeof(decor) !== "undefined") {
					decor = stringToDecor(decor);
					if(!validateDecorStructure(decor)) {
						alertIfError(alertError,"Decor definition is invalid or malformed!");
						return false;
					};
					newPreset.decor = decor;
				};

				if(worldgentypes[presetName]) {
					var doOverwrite = confirm(`Overwrite worldgen preset ${presetName}?`);
					if(!doOverwrite) {
						alertIfError(alertError,"defineworldgen canceled");
						return false;
					};
				};
				worldgentypes[presetName] = newPreset;
				settings.worldgen = presetName;
				rebuildWorldgenList();
				
				alertIfOutput(alertOutput,
`Defined worldgen preset ${presetName}.
Make sure to save your command in a file if you want to add this preset again.`
);
				console.log(inputText);
				return [presetName,newPreset];
			case "stars":
				var starDensity = inputAsArray[1];
				
				var seed = inputAsArray[2]; //〜カクセイ〜

				if(starDensity == undefined) {
					starDensity = 0.001
				} else {
					starDensity = parseFloat(starDensity);
					if(isNaN(starDensity)) {
						alert("starDensity was NaN, defaulting to 0.001");
						starDensity = 0.001;
					};
				};
				
				var stringSeed = false;
				var seedString = null;
				
				if(seed === undefined) {
					seed = Math.random();
					stringSeed = false;
				} else {
					if(isNaN(parseFloat(seed))) {
						stringSeed = true;
						seedString = seed;
						seed = cyrb128(seed)[2];
					} else {
						stringSeed = false;
						seed = parseFloat(seed);
					};
				};
				
				lastStarSeed = stringSeed ? seedString : seed;
				//console.log(stringSeed);
				//console.log(lastStarSeed);
				var randomFunction = mulberry32(seed);
				
				if(!enabledMods.includes("mods/code_library.js")) {
					alert("'stars' command requires 'code_library.js' mod!");
					return false;
				} else {
					clearAll();
					for(j = 1; j < height; j++) {
						for(i = 1; i < width; i++) {
							if(randomFunction() < starDensity) {
								if(isEmpty(i,j,false)) {
									var value = randomFunction() ** 4;

									if(value < 0.3) {
										createPixelReturn("sun",i,j).temp = seededRandBetween(1800,3300,randomFunction);
									} else if(value < 0.55) {
										createPixelReturn("sun",i,j).temp = seededRandBetween(3300,5500,randomFunction);
									} else if(value < 0.70) {
										createPixelReturn("sun",i,j).temp = seededRandBetween(5500,8000,randomFunction);
									} else if(value < 0.8) {
										createPixelReturn("sun",i,j).temp = seededRandBetween(8000,13000,randomFunction);
									} else if(value < 0.85) {
										createPixelReturn("sun",i,j).temp = seededRandBetween(13000,35000,randomFunction);
									} else if(value < 0.88) {
										createPixelReturn("sun",i,j).temp = seededRandBetween(35000,90000,randomFunction);
									} else { //other stuff
										var value2 = randomFunction();
										if(value2 < 0.5) { //giant stars
											var value3 = randomFunction();
											if(value3 < 0.6) { //favor red giants
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(3,4,randomFunction));
												var randTemp = seededRandBetween(1800,3300,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											} else if(value3 < 0.9) { //blue giants are rarer
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(2,3,randomFunction));
												var randTemp = seededRandBetween(20000,80000,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											} else { //yellows are even rarer
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(2,3,randomFunction));
												var randTemp = seededRandBetween(6000,11000,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											};
										} else if(value2 < 0.6) { //supergiants
											var value3 = randomFunction();
											if(value3 < 0.6) {
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(6,8,randomFunction));
												var randTemp = seededRandBetween(1700,3200,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											} else if(value3 < 0.9) {
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(5,7,randomFunction));
												var randTemp = seededRandBetween(19000,83000,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											} else {
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(5,6,randomFunction));
												var randTemp = seededRandBetween(5500,10500,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											};
										} else if(value2 < 0.65) { //hypergiants
											var value3 = randomFunction();
											if(value3 < 0.6) {
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(9,12,randomFunction));
												var randTemp = seededRandBetween(1600,3100,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											} else if(value3 < 0.94) {
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(8,11,randomFunction));
												var randTemp = seededRandBetween(18000,84000,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											} else {
												var sunPixels = fillCircleReturn("sun",i,j,seededRandBetween(8,11,randomFunction));
												var randTemp = seededRandBetween(5000,10000,randomFunction);
												for(pixel in sunPixels) {
													sunPixels[pixel].temp = randTemp;
												};
											};
										} else if(value2 < 0.8) { //white dwarfs/neutron stars
											if(randomFunction() < 0.8) { //favor white dwarfs
												createPixelReturn("sun",i,j).temp = seededRandBetween(100000,300000,randomFunction);
											} else {
												if(!elements.neutron_star) {
													createPixelReturn("sun",i,j).temp = seededRandBetween(100000,300000,randomFunction);
												} else {
													createPixelReturn("neutron_star",i,j).temp = seededRandBetween(2000000,10000000,randomFunction);
												};
											};
										} else { //brown dwarfs
											createPixelReturn("sun",i,j).temp = seededRandBetween(100,800,randomFunction);
										};
									};
								};
							};
						};
					};
				};
				return true;
				break;
			case "kakusei":
			case "starseed":
				if(!enabledMods.includes("mods/code_library.js")) {
					alert("'starseed' command requires 'code_library.js' mod!");
					return false;
				};
				alertIfOutput(alertOutput,lastStarSeed);
				console.log(lastStarSeed);
				return lastStarSeed;
			case "help":
				var commandsWithoutDwg2 = Object.keys(commandHelpObject).filter(function(cmdName) { return cmdName !== "defineworldgen2" });
				if(inputAsArray.length < 1) { //somehow
					alertIfError(alertError,"Usage: help <command>\nDon't include framing characters []<>.\nArguments in <angle brackets> are optional.");
					return false;
				};
				if(inputAsArray.length < 2) {
					alertOutput ? alertIfOutput(alertOutput,"Commands: " + commandsWithoutDwg2.join("\n")) : console.log("Commands: " + commandsWithoutDwg2.join(", "));
				} else {
					var command = inputAsArray[1];

					if(typeof(commandHelpObject[command]) === "undefined" || command == "defineworldgen2") {
						alertIfError(alertError,"Cound not find help for " + command + ".");
						return false;
					} else {
						if(command == "defineworldgen") {
							if(alertOutput) {
								alert(commandHelpObject.defineworldgen);
								alert(commandHelpObject.defineworldgen2);
							} else {
								console.log(commandHelpObject.defineworldgen + "\n" + commandHelpObject.defineworldgen2);
							};
						} else {
							if(alertOutput) {
								alert(commandHelpObject[command]);
							} else {
								console.log(commandHelpObject[command]);
							};
						};
						return true;
					};
				};
				return true;
			default:
				alertIfError(alertError,`Command ${firstItem} not found!`);
				return false;
		};
	};

	document.addEventListener("keydown", function(e) { //prop prompt listener
		// , = propPrompt()
		if ([1,3].includes(shiftDown) && e.keyCode == 49) { //either shift + 1
			funniPrompt();
		};
	});

	elements.funni_prompt = {
		color: ["#000000","#00ff00","#000000","#00ff00","#000000","#00ff00","#000000","#00ff00","#000000","#00ff00"],
		behavior: behaviors.SELFDELETE,
		desc: "<span style='color:#FF00FF;' onClick=funniPrompt()>Click here or press Shift+1 to open the command prompt.</span>",
		category:"special",
	};
} else {
	alert(`The ${variablesMod} mod is required and has been automatically inserted (reload for this to take effect).`)
	enabledMods.splice(enabledMods.indexOf(modName),0,variablesMod)
	localStorage.setItem("enabledMods", JSON.stringify(enabledMods));
};