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vino.js
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vino.js
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/* Author: dixonary
* Text adventure engine version 0.1
*/
var engine = {};
var game = {};
canvas = null;
/* Variables */
game.FPS = 60; //Hz
game.EnterExitTime = 300; //ms
engine.ResourcesFolder = "resources";
engine.ImageExtension = ".png";
engine.AudioExtension = ".mp3";
engine.loggingMode = "console";
engine.standardLoggingMode = "none";
game.font="24px sans-serif";
game.scaleFactor = 1;
game.intendedHeight = 1000;
game.fastscroll = false;
game.musicRelVolume = 0.3;
game.audioVolume = 0.75;
data = {};
engine.regex = {
anyCommand : /^\s*\[.*]\s*&?\s*$/,
label : /^\s*::\s*([a-z0-9_-]+)\s*$/i,
goto : /^\s*->\s*([a-z0-9_-]+)\s*$/i,
option : /^\s*\?\s*(.+)\s*->\s*([a-z0-9_-]+)\s*(&?)\s*$/i,
longcode : /^\s*```\s*$/,
code : /^\s*`(.*)`\s*$/,
speech : /^\s*([^:]*)\s*:\s*(.*)\s*$/
};
engine.reset = function() {
engine.currentLine = 0;
engine.gotos = [];
engine.labels = [];
};
/* Internal functions */
engine.log = function (x) {
switch(engine.loggingMode) {
case "console":
console.log(x);
break;
case "none":
break;
case "preload":
if(game.preloader != null)
game.preloader.log(x);
break;
}
}
engine.loadStory = function(storyURL) {
game.preloader = new gen.Preloader();
game.preloader.progress = 0.5;
engine.loggingMode = "preload";
engine.log("downloading story...");
$.get({ url: storyURL, success: engine.onLoaded })
}
engine.onLoaded = function(data, textStatus) {
console.info("Story loaded.");
engine.rawStory = data;
engine.compile(data);
$("#story").html(engine.rawStory.replace("\n","<br>"));
}
// The list of commands which will be compiled.
engine.commands = {
enter: {
args: ["ident", "group", "ident", "ident", "dir?"],
onParse: (res) => {
engine.charsEnter.push(res[2]);
engine.preloads.push(engine.getURL("stance",res[2],res[4]));
engine.preloads.push(engine.getURL("expression",res[2],res[5]));
}
},
exit: {
args: ["ident", "dir?"],
onParse: (res) => {
engine.charsLeave.push(res[2]);
}
},
stance: {
args: ["ident", "ident"],
onParse: (res) => {
engine.preloads.push(engine.getURL("stance",res[2],res[3]));
}
},
expression: {
args: ["ident", "ident"],
onParse: (res) => {
engine.preloads.push(engine.getURL("expression",res[2],res[3]));
}
},
move: {
args: ["ident", "group"]
},
wait: {
args: ["int"],
allowSkip: false
},
pause: {
args: ["int"]
},
scene: {
args: ["ident","int?"],
onParse: (res) => {
engine.preloads.push(engine.getURL("scene",res[2]));
}
},
sound: {
args: ["ident"],
onParse: (res) => {
engine.preloads.push(engine.getURL("sound",res[2]));
}
},
music: {
args: ["ident"],
onParse: (res) => {
engine.preloads.push(engine.getURL("music",res[2]));
}
},
textbox: {
args: ["toggle"]
}
};
engine.compile = function(data) {
// HELPER FUNCTIONS FOR COMPILATION
//
function isCommand(line) {
return l.match(engine.regex.anyCommand);
}
// Match against arbitrary [ blah ] commands
function parseCommand(line, command, fields) {
var fieldTypes = [];
fieldTypes["dir"] = "(left|right|spot)";
fieldTypes["ident"] = "([a-z0-9]+)";
fieldTypes["group"] = "(left|right|center)";
fieldTypes["int"] = "([0-9]+)";
fieldTypes["string"] = "([^\s]*)";
fieldTypes["toggle"] = "(hide|show|toggle|clear)";
var str = "^";
str += "\\s*\\[\\s*(" + command + ")\\s*";
for(var i=0; i<fields.length; i++) {
var reg = fields[i];
// make optional parameters
if(fields[i][fields[i].length-1] == "?") {
reg = fieldTypes[reg.substr(0,reg.length-1)] + "?";
}
else {
reg = fieldTypes[reg];
}
str += "\\s*" + reg;
}
str += "\\s*\\]\\s*(&)?\\s*";
str += "$";
return line.match(new RegExp(str,"i"));
}
function constructCommand(match) {
var res = "engine." + match[1] + "(";
var pos=2;
while(pos < match.length) {
if(match[pos] == "&" || !match[pos]) {
pos++;
continue;
}
if(pos != 2) {
res += ",";
}
res += "\"" + match[pos] + "\"";
pos++;
}
res += ")"
if(match[--pos] == "&") {
if(engine.commands[match[1]].allowSkip == null || engine.commands[match[1]].allowSkip !== false) {
res += "; engine.advance();";
}
else {
console.warn("The command on line " + (i+1) +
" ends in & but skip is not allowed on this command.\nThe skip will be ignored.");
}
}
return res.toLowerCase();
}
// convert to lines array
data = data.split("\n");
engine.labels = [];
engine.charsEnter = [];
engine.charsLeave = [];
engine.preloads = [];
// convert lines to javascript commands!
for(i=0; i<data.length; i++) {
l = data[i];
var res; // used to store results
// empty lines
if(l == "") {
data[i] = "engine.advance()";
}
// comments
else if(l[0] == "#") {
data[i] = "engine.advance();"
}
// note line numbers of labels!
else if(res=l.match(engine.regex.label)) {
data[i] = "engine.label(\""+res[1]+"\")";
engine.labels[res[1]] = i;
}
// Goto statement
else if(res=l.match(engine.regex.goto)) {
data[i] = "engine.goto(\""+res[1]+"\")";
engine.gotos[i] = res[1];
}
// Option statement
else if(res=l.match(engine.regex.option)) {
var str = "engine.option(";
str += "{text:\""+res[1]+"\",label:\""+res[2]+"\"});";
if(res[3] == "&")
str += "engine.advance();";
data[i] = str;
engine.gotos[i] = res[2];
}
else if(isCommand(l)) {
var found=false;
for(comm in engine.commands) {
var c = engine.commands[comm];
if(res=parseCommand(l, comm, c.args)) {
data[i] = constructCommand(res);
if(c.onParse) c.onParse(res);
found=true;
break;
}
}
if(found) continue;
engine.warn("Malformed command: line " + (i+1) + ": " + l);
engine.warn("This line will be ignored.");
data[i] = "engine.advance()";
}
// Long code
else if(res=l.match(engine.regex.longcode)) {
data[i] = "";
for(var j=i+1; j<data.length;j++) {
if(data[j].match(engine.regex.longcode)) {
data[j]="engine.advance();";
break;
}
data[i] += data[j]+"\n";
data[j]="engine.advance();";
}
data[i] += ";engine.advance();";
i=j;
}
// Code
else if(res=l.match(engine.regex.code)) {
data[i] = res[1] + ";engine.advance();";
}
// Speech
else if(res=l.match(engine.regex.speech)) {
txt = res[2];
res[2] = res[2].replace(/\$([a-z0-9_]+)/gi,"\"+$1+\"");
data[i] = "engine.say(\""+res[1]+"\",\""+res[2]+"\")";
}
else {
engine.warn("Malformed line: line " + (i+1) + ": " + l);
engine.warn("This line will be ignored.");
data[i] = "engine.advance()";
}
}
// Check labels match with goto's
unmatchedGotos = engine.gotos.filter(g=>engine.labels[g] == null);
var strRep = unmatchedGotos.reduce(
(a,b)=>a+"\n\""+b+"\" on line " +engine.gotos.indexOf(b), "")
if(unmatchedGotos.length>0)
engine.warn("The following goto statements do not have a corresponding label: "
+ strRep);
unmatchedLeaves = engine.charsLeave.filter(g=>engine.charsEnter.indexOf(g) == -1);
if(unmatchedLeaves.length>0)
engine.warn("The following characters leave but do not enter: "
+ unmatchedLeaves);
//Preload other Resources:
engine.preloads.push(engine.getURL("image","textbox"));
engine.preloads.push(engine.getURL("image","charbox"));
engine.preloads.push(engine.getURL("image","optionbox"));
//engine.log(engine.preloads);
//Get character data for every character
engine.characters = [];
// Remove duplicate entries
engine.charsEnter = engine.charsEnter.filter((i,p)=>engine.charsEnter.indexOf(i) == p);
engine.preloads = engine.preloads.filter((i,p)=>engine.preloads.indexOf(i) == p);
engine.remainingChars = engine.charsEnter.length;
engine.remainingResources = engine.preloads.length;
for(var i=0;i<engine.charsEnter.length; i++) {
$.ajax({
dataType:"json",
url:engine.getURL("chardata",engine.charsEnter[i]),
success:engine.loadCharacterData.bind(null,engine.charsEnter[i])});
}
for(var i=0; i<engine.preloads.length; i++) {
var url = engine.preloads[i];
/*
$.ajax({
url:url,
success:engine.loadResource.bind(null,url)});
*/
if(url.substr(-4) == engine.ImageExtension) {
k = new Image();
k.onload = engine.loadResource.bind(null,url);
}
else if(url.substr(-4) == engine.AudioExtension) {
k = new Audio();
$(k).on("loadeddata",engine.loadResource.bind(null,url));
}
k.src = url;
}
engine.story = data;
}
engine.getURL = function(type,...details) {
var resString = engine.ResourcesFolder+"/";
details = details.map(s=>s.toLowerCase());
switch(type) {
case "chardata":
resString += "characters/"+details[0]+"/info.json";
break;
case "scene":
resString += "scenes/"+details[0]+engine.ImageExtension;
break;
case "expression":
case "stance":
resString += "characters/"+details[0]+"/"+details[1]+engine.ImageExtension;
break;
case "image":
resString += details[0]+engine.ImageExtension;
break;
case "sound":
resString += "sounds/"+details[0]+engine.AudioExtension;
break;
case "music":
resString += "music/"+details[0]+engine.AudioExtension;
break;
case "other":
resString += details[0];
break;
}
return resString;
}
// start once ALL characters have their data loaded.
engine.loadCharacterData = function(id,data) {
engine.characters[id] = data;
engine.remainingChars--;
engine.log("Loaded character info: \""+id+"\"");
game.preloader.progress1 = 1-(engine.remainingChars
/ (engine.charsEnter.length));
if(engine.remainingResources+engine.remainingChars == 0)
engine.donePreloading();
}
engine.loadResource = function(url) {
engine.remainingResources--;
game.preloader.progress2 = 1-((engine.remainingResources+engine.remainingChars)
/ (engine.preloads.length+engine.charsEnter.length));
engine.log("Loaded resource \""+url+"\"");
if(engine.remainingResources+engine.remainingChars == 0)
engine.donePreloading();
}
engine.donePreloading = function() {
game.preloader = null;
engine.loggingMode = engine.standardLoggingMode;
engine.play();
}
/* Story driving functions */
engine.play = function() {
try {
eval.apply(this,[engine.story[engine.currentLine]]);
}
catch(e) {
console.error("An error occurred on line " + engine.currentLine + ":");
console.error(e);
}
}
engine.option = function(option) {
game.readyToAdvance = false;
if(game.options == null) {
game.options = new gen.Options();
game.options.fadeIn();
}
game.options.addOption(option);
engine.log("OPTION "+game.options.options.length+": "+option.text+" -> " + option.label);
}
engine.advance = function() {
var prev = engine.currentLine;
engine.currentLine = Math.min(engine.currentLine+1, engine.story.length-1);
engine.readyToAdvance = true;
if(prev != engine.currentLine)
engine.play();
}
engine.goto = function(label) {
engine.log("Going to \""+label+"\"");
engine.currentLine = engine.labels[label];
engine.play();
}
engine.label = function(label) {
engine.log("Hit label \""+label+"\"; continuing");
engine.advance();
}
engine.say = function(c, text) {
engine.log(c+": " + text);
game.say(c,text);
}
engine.enter = function(c, loc, stance, expr, dir) {
dir = dir || (loc=="center"?"right":loc);
engine.log(c+" enters and moves to " + loc + ", faces " + dir + ". they seem " + expr + " and are standing " + stance + ".");
new gen.Character(c,loc,stance,expr,dir);
}
engine.exit = function(c, dir) {
dir = dir || "right";
engine.log(c + " leaves to the " + dir+".");
game.findChar(c).exit(dir);
}
engine.stance = function(c,stance) {
engine.log(c+" is now standing " + stance+".");
game.findChar(c).setStance(stance);
}
engine.expression = function(c,expression) {
engine.log(c+" now looks " + expression+".");
game.findChar(c).setExpression(expression);
}
engine.move = function(c, loc) {
game.findChar(c).setLocation(loc);
}
engine.wait = function(time) {
engine.readyToAdvance = false;
setTimeout(engine.advance,time);
}
engine.pause = function(time) {
engine.readyToAdvance = false;
if(time != 0)
setTimeout(()=>engine.readyToAdvance=true,time);
}
engine.scene = function(name,speed) {
game.changeScene(name,speed);
}
engine.sound = function(name) {
game.sound(name);
}
engine.music = function(name) {
game.music(name);
}
engine.textbox = function(doWhat) {
switch(doWhat) {
case "show" : game.text.targetAlpha=game.text.maxAlpha;break;
case "hide" : game.text.targetAlpha=0; break;
case "toggle": game.text.targetAlpha=game.text.maxAlpha-game.text.targetAlpha;break;
case "clear" : engine.say("","");
}
}
/* Helper functions */
engine.warn = function(str) {
console.warn(str);
}
engine.error = function(str) {
throw "StoryCompilationError:\n" + str + "\nExecution is unable to continue.";
}
engine.onclick = function(event) {
if(game.options != null) {
game.options.onClick();
return;
}
if(game.text.remText.length != 0) {
game.text.more();
}
else if(engine.readyToAdvance) {
engine.advance();
}
}
engine.mousePos = function(event) {
canvas_x = event.pageX-game.target.offset().left;
canvas_y = event.pageY-game.target.offset().top;
if(game.options != null) {
game.options.mousePos(canvas_x,canvas_y);
}
}
// Set the div that the game should be drawn into.
// This will also set the width and height.
game.setTarget = function(id) {
game.target = $("#"+id);
game.WIDTH = game.target.width();
game.HEIGHT = game.target.height();
game.scaleFactor = game.target.height()/game.intendedHeight;
var canvasElement = $("<canvas width='"+game.WIDTH+"' height='"
+game.HEIGHT+"' style='width:100%;height:100%;'></canvas>");
canvasElement.appendTo(game.target);
canvas = canvasElement.get(0).getContext("2d");
canvasElement.get(0).addEventListener("mousedown", engine.onclick, false);
canvasElement.get(0).addEventListener("mousemove", engine.mousePos, false);
canvas.font = game.font;
canvas.imageSmoothingEnabled = true;
game.reset();
}
// Get a character by name on screen.
// Will return the leftmost one if there are multiple with the same name.
game.findChar = function(c) {
var gs = ["left","center","right"];
for(var i=0; i<gs.length; i++) {
for(var x=0; x<game.groups[gs[i]].length; x++) {
if(game.groups[gs[i]][x].name == c) return game.groups[gs[i]][x];;
}
}
}
game.reset = function() {
if(game.interval) clearInterval(game.interval);
game.interval = setInterval(game.tick, 1000/game.FPS);
game.characters = [];
game.images = [];
game.backgrounds = [];
if(canvas) canvas.clearRect(0,0,game.WIDTH,game.HEIGHT);
game.groups = [];
game.groups.left = new gen.Group(game.WIDTH/4, game.WIDTH/3);
game.groups.center = new gen.Group(game.WIDTH/2, game.WIDTH/3);
game.groups.right = new gen.Group(game.WIDTH/4*3, game.WIDTH/3);
game.text = new gen.Textfield();
}
game.tick = function() {
if(game.lastUpdate == null) {
game.lastUpdate = (new Date()).getTime();
}
else {
game.tickTime = ((new Date()).getTime() - game.lastUpdate)/1000;
game.lastUpdate = (new Date()).getTime();
}
game.update();
game.draw();
}
game.update = function() {
for(i=0; i<game.backgrounds.length;i++) {
game.backgrounds[i].update();
}
var gs = ["left","center","right"];
for(var i=0; i<gs.length; i++) {
game.groups[gs[i]].update();
}
if(game.options != null) {
game.options.update();
}
game.text.update();
}
game.music = function(name) {
var mus = new Audio();
mus.src = engine.getURL("music",name);
mus.play();
var musInFade = setInterval(function() {
arguments.callee.count=arguments.callee.count+1||1;
var vol = game.musicRelVolume * game.audioVolume;
mus.volume = Math.min(vol,mus.volume+0.05);
if(mus.volume == vol || arguments.callee.count>20) {
clearInterval(musInFade);
}
},100);
var oldMus = game.currentMusic;
if(game.currentMusic != undefined) {
var musOutFade = setInterval(function() {
oldMus.volume = Math.max(0,oldMus.volume-0.05);
if(oldMus.volume == 0 ) {
clearInterval(musOutFade);
}
},100);
}
mus.loop = true;
mus.volume = 0;
game.currentMusic = mus;
}
game.sound = function(name) {
var snd = new Audio();
snd.src = engine.getURL("sound",name);
snd.volume = game.audioVolume;
snd.play();
}
game.draw = function() {
if(!canvas) return;
//canvas.clearRect(0,0,game.WIDTH,game.HEIGHT);
for(i=game.backgrounds.length-1; i>=0;i--) {
game.backgrounds[i].draw();
}
var gs = ["left","center","right"];
for(var i=0; i<gs.length; i++) {
game.groups[gs[i]].draw();
}
if(game.options != null) {
game.options.draw();
}
if(game.preloader != null) {
game.preloader.draw();
}
game.text.draw();
}
game.say = function(char, text) {
game.text.type(char,text);
}
game.changeScene = function(name,val) {
for(var i=0; i<game.backgrounds.length; i++) {
game.backgrounds[i].fadeOut();
}
var newBG = gen.Background(name);
game.backgrounds.push(newBG);
if(!game.currentBG) {
game.currentBG = newBG;
newBG.fadeIn();
}
if(val != null) {
newBG.fadeSpeed = 1000/val/game.FPS;
for(var i=0; i<game.backgrounds.length; i++) {
game.backgrounds[i].fadeSpeed = 1000/val/game.FPS;
}
}
}
/* Objct generators */
gen = {};
gen.Preloader = function() {
var pr = {};
pr.barW = game.WIDTH/3*2;
pr.barH = game.HEIGHT/16;
pr.barY = game.HEIGHT/6;
pr.logY = game.HEIGHT/3;
pr.logWidth = game.WIDTH/3*2;
pr.textHeight = 20;
pr.hintingColor = "hotpink";
pr.bgColor = "#111";
pr.fgColor = "white";
pr.showLogs = true;
pr.margin = 5;
pr.logs = [];
pr.maxLogs = Math.floor((game.HEIGHT-pr.logY)/pr.textHeight)-1;
pr.progress1 = 0;
pr.progress2 = 0;
pr.draw = function() {
var prev_fs = canvas.fillStyle;
var prev_ss = canvas.strokeStyle;
canvas.fillStyle = pr.fgColor;
canvas.strokeStyle = pr.fgColor;
canvas.strokeRect(game.WIDTH/2-pr.barW/2, pr.barY-pr.barH/2,
pr.barW, pr.barH);
canvas.fillRect(game.WIDTH/2-pr.barW/2+pr.margin, pr.barY-pr.barH/2+pr.margin,
pr.progress1*(pr.barW-pr.margin*2), (pr.barH-pr.margin*2));
canvas.fillStyle = pr.hintingColor;
canvas.fillRect(game.WIDTH/2-pr.barW/2+pr.margin, pr.barY-pr.barH/2+pr.margin,
pr.progress2*(pr.barW-pr.margin*2), (pr.barH-pr.margin*2));
if(pr.showLogs) {
canvas.strokeRect(game.WIDTH/2-pr.logWidth/2, pr.logY,
pr.logWidth, game.HEIGHT);
canvas.fillStyle = pr.bgColor;
canvas.fillRect(game.WIDTH/2-pr.logWidth/2+pr.margin, pr.logY+pr.margin,
pr.logWidth-pr.margin*2, game.HEIGHT-pr.logY);
canvas.fillStyle = pr.fgColor;;
canvas.font = "16px monospace";
var line=0;
for(var i=0; i<pr.logs.length; i++) {
var rem = pr.logs[i];
while(rem != "") {
var chars;
for(chars=0; canvas.measureText(rem.substr(0,chars)).width<pr.logWidth
&& chars<=rem.length;chars++){
}
canvas.fillText(rem.substr(0,chars)
,game.WIDTH/2-pr.logWidth/2+pr.margin*2,pr.logY+pr.textHeight*(line+1)+pr.margin);
rem = rem.substr(chars);
line++;
}
}
}
canvas.font = game.font;
canvas.fillStyle = prev_fs;
canvas.strokeStyle = prev_ss;
}
pr.log = function(x) {
pr.logs.push(x.toString());
if(pr.logs.length > pr.maxLogs) {
pr.logs.splice(0,1);
}
}
return pr;
}
gen.Group = function(position,width) {
var gr = [];
gr.position = position;
gr.width = width;
gr.addCharacter = function(char) {
if(char.x > gr.position)
gr.push(char);
else
gr.splice(0,0,char);
gr.recalc();
}
gr.remCharacter = function(char) {
gr.splice(gr.indexOf(char),1);
gr.recalc();
}
gr.recalc = function() {
for(var i=0; i<gr.length; i++) {
gr[i].targetX = ((i*2+1) / (gr.length*2)-0.5)*gr.width+gr.position
- gr[i].width*gr[i].scaleFactor/2;
}
}
gr.update = function() {
for(var i=0; i<gr.length; i++) {
gr[i].update();
}
}
gr.draw = function() {
for(var i=0; i<gr.length; i++) {
gr[i].draw();
}
}
return gr;
}
gen.Textfield = function() {
var tf = {};
tf.currentLine = 0;
tf.currentText = [];
tf.remText = [];
tf.full = false;
tf.height = 210;
tf.width = game.WIDTH;
tf.y = game.HEIGHT - tf.height;
tf.x = 0;
tf.textHeight = 30;
tf.char = "";
tf.ticker = 0;
tf.ticksPerChar= 1;
tf.alpha = 0;
tf.maxAlpha = 0.8;
tf.fadeSpeed = 2/game.FPS;
tf.margin = 10;
tf.charBoxH = tf.textHeight|0;
tf.textBoxImg = new Image();
tf.textBoxImg.src=engine.getURL("image","textbox");
tf.charBoxImg = new Image();
tf.charBoxImg.src=engine.getURL("image","charbox");
tf.renderCanvas = document.createElement("canvas");
tf.renderCanvas.width = tf.width;
tf.renderCanvas.height=tf.height+tf.charBoxH;
tf.rerender = function() {
var can = tf.renderCanvas.getContext("2d");
can.clearRect(0,0,tf.renderCanvas.width,tf.renderCanvas.height);
can.font = game.font;
can.drawImage(tf.textBoxImg, 0,0,tf.textBoxImg.naturalWidth,tf.textBoxImg.naturalHeight,
0,tf.charBoxH,tf.width,tf.height);
for(var i=0; i<=tf.currentLine; i++) {
if(tf.currentText[i] == undefined) break;
can.fillText(tf.currentText[i], tf.margin, tf.charBoxH + (i+1)*tf.textHeight+tf.margin);
}
if(tf.char.match(/[^\s]/)){
can.drawImage(tf.charBoxImg, 0,0,tf.charBoxImg.naturalWidth,tf.charBoxImg.naturalHeight,
30,1,can.measureText(tf.char).width+tf.margin*2,tf.charBoxH);
can.fillText(tf.char, 30+tf.margin, tf.charBoxH-3);
}
}
tf.update = function() {
//fade out
if(tf.alpha > tf.targetAlpha) {
tf.alpha -= tf.fadeSpeed;
if(tf.alpha < tf.targetAlpha)
tf.alpha = tf.targetAlpha;
}
// fade in
else if(tf.alpha < tf.targetAlpha) {
tf.alpha += tf.fadeSpeed;
if(tf.alpha > tf.targetAlpha)
tf.alpha = tf.targetAlpha;
}
if(tf.remText.length==0) return;
if(!tf.full) {
tf.ticker = (tf.ticker+1)%tf.ticksPerChar;
if(tf.ticker == 0) {
if(game.fastscroll) {
tf.writeAll();
}
else {
tf.typeCharacter();
}
}
}
}
tf.typeCharacter = function(rerender) {
if(rerender === undefined) rerender = true;
var i=0;
if(tf.remText.length == 0) return;
while(tf.remText[0] == "") {
tf.remText.splice(0,1);
tf.currentLine++;
if(tf.currentLine >= Math.floor(tf.height/tf.textHeight)-1) {
tf.full = true;
engine.log(tf.remText);
return;
}
tf.currentText[tf.currentLine] = "";
}
if(tf.remText.length == 0) {
engine.readyToAdvance=true;
return;
}
tf.currentText[tf.currentLine] += tf.remText[0].substr(0,1);
if(rerender) tf.rerender();
tf.remText[0] = tf.remText[0].substr(1);
}
tf.draw = function() {
canvas.globalAlpha = tf.alpha;
canvas.drawImage(tf.renderCanvas,tf.x,tf.y-tf.charBoxH);
canvas.globalAlpha = 1;
}
tf.type = function(char, text) {
tf.currentLine = 0;
tf.full = false;
tf.setChar(char);
tf.currentText = [""];
tf.remText = [];
text = text.split("\n");
text = text.map(t=>t.split(" "));
var rtCount=0;
// automate word wrap
for(var i=0; i<text.length; i++) {
tf.remText[rtCount] = "";
for(var j=0; j<text[i].length; j++) {
if(tf.remText[rtCount] != "") tf.remText[rtCount] += " ";
if(canvas.measureText(tf.remText[rtCount]+text[i][j]).width > tf.width-tf.margin*2) {
rtCount++;
tf.remText[rtCount] = "";
}
tf.remText[rtCount] = tf.remText[rtCount] + text[i][j];
}
rtCount++;
}
tf.rerender();
}
// Engine asks for more. Print all, or change to next page.
tf.more = function() {
if(!tf.full) {
tf.writeAll();
}
else {
tf.currentLine = 0;
tf.currentText = [""];
tf.full = false;
tf.rerender();
}
}