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vncanvas-0.2.js
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///////////////////////////////////////////////////////////////////////////////
// Visual Novel JAVASCRIPT for HTML5 CANVAS by [lo'ner] //
// Author: oclabbao@yahoo.com, oclabbao@gmail.com //
// Based on: //
// Construct2 - HTML5 game creator (www.scirra.com) //
// js-vine.js by J. David Eisenberg //
// enchant.js by Ubiquitous Entertainment Inc. //
// Ren'Py Python VN engine (www.renpy.org) //
// Requires: //
// CanvasText by Pere Monfort Pàmies (www.pmphp.net, www.canvastext.com)//
// - modded to support \n and hover in text //
// [Optional] JQuery by John Resig (jquery.com) //
// Rationale: //
// A generic engine, whether event or messaging based, is a bit bloated //
// for visual novel use. Not only are visual novels notoriously heavy //
// on resources (images, media) which engines try to preload at start, //
// they also do not require most of the features offered by these //
// engines. Hence, this is an attempt to create an engine suitable for //
// web-based visual novels, leaving story-tellers with just the task of //
// story telling. Of course, this is not limited to visual novels, but //
// can also be used for ad promotions, PPT-like presentations, etc. //
// Oh, did I mention that it's cross-platform on an HTML5-capable //
// browser, absolutely malware/adware/spyware free (go ahead, inspect //
// the code. bet you can't do that on a flash or server-side script), //
// can be used online/offline and, on top of that, FREE. //
///////////////////////////////////////////////////////////////////////////////
/******************************************************************************
Copyright © 2012 by OCLabbao a.k.a [lo'ner]
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
/******************************************************************************
Revision history:
Version 0.2 Althea
03.06.12 - Added 'z_order' for actor
- Setting a variable to null deletes it
- Support persistent user variable
- Support multiple named 'checkpoints'
03.04.12 - Added screen actions 'shake, 'snap'
03.01.12 - Added speech 'balloon' in actor
- Added arrays in user variables
02.28.12 - Added 'voice' dub in-sync with dialog
- Added 'nowait' argument to effects
02.27.12 - Expand user variables for more active use
- Several bugfixes
02.24.12 - Recode 'cform' (to be plugin-ready)
- Bugfix on user variable checkpoint save
02.21.12 - Improved memory handling (avoid leaks ?)
- Modify Vector2d class
02.13.12 - Recode 'atmosphere' (to be plugin-ready)
02.12.12 - Recode effects (to be plugin-ready)
02.10.12 - Recode 'box', script, stage and 'button'
- Added 'preload'
- Selectable 'video-on-canvas' or 'video-element'
02.09.12 - Added vector2d class (in anticipation of some future features)
- Optimized 'particles' for performance
- Recode 'scene', 'overlay'
- Recode 'actor'
02.06.12 - Recode 'user variables'
- Recode 'audio', 'video'
- Recode 'form'
- Bug fix for iOS user inputs
02.05.12 - Recode for "cleaner" encapsulation thru functional inheritance
- Recode 'atmosphere'
Version 0.1 Preview
02.02.12 - Added atmosphere 'snow', 'rain' direction
01.31.12 - Updated cutscene/movie to play in canvas
- Optimized method encapsulation
01.28.12 - Bugfix for non-modal dialog while checkpoint loading
- Bugfix for cross-browser compatibility (re:image constructor)
- Added timer cform element
- Added animated picture cform element
01.25.12 - Added macro for custom javascript
01.12.12 - Updated scene and overlay to accept HTML color
- Updated button (cform) to accept HTML color
- Optimized memory footprint (a bit)
01.11.12 - Added word filter
- Added URL jump
- Simplified atmosphere, added cloud and beam
01.09.12 - Added themes
- Forms can be instantiated in-game
01.06.12 - Implemented text effects
01.04.12 - Bug fix: avatar, checkpoint
- Implemented additional actor effects
- Implemented additional overlay effects
- Implemented additional background effects
12.30.11 - Simplified 'audio'
12.29.11 - Added configuration file (just the basics)
12.28.11 - Added a subset of HTML forms
12.26.11 - Simplified 'set' and 'jump'
12.25.11 - Added actor avatar
- Updated checkpoint saves to include avatar and forms
12.24.11 - Added video for intros, cutscenes, endings
- Updated demo and docs
12.21.11 - Added canvas forms (buttons only... so far)
12.20.11 - Added basic saves using checkpoint
- Completed initial demo
12.08.11 - Added overlay and atmosphere basics
12.06.11 - Added actor basics
12.05.11 - Added script box, flow control using jump
12.01.11 - Basics for background image, music/sounds, flow control using wait
11.27.11 - File creation
******************************************************************************/
///////////////////////////////////////////////////////////////////////////////
// Generic/helper methods
///////////////////////////////////////////////////////////////////////////////
var Helper = {
// Function for adding an event listener
_registry: null,
initialise: function() {
if (this._registry == null) {
this._registry = [];
Helper.addEvent(window, 'unload', this.cleanUp);
}
},
cleanUp: function() {
for (var i = 0; i < Helper._registry.length; i++) {
with (Helper._registry[i]) {
if (obj.removeEventListener)
obj.removeEventListener(evType, fn, useCapture);
else if (obj.detachEvent)
obj.detachEvent("on" + evType, fn);
}
}
Helper._registry = null;
},
addEvent: function (obj, evType, fn, useCapture) {
this.initialise();
if (typeof obj == 'string')
obj = document.getElementById(obj);
if ((obj == null) || (fn == null))
return false;
if (obj.addEventListener) {
obj.addEventListener(evType, fn, useCapture);
this._registry.push({obj: obj, evType: evType, fn: fn, useCapture: useCapture});
return true;
}
if (obj.attachEvent) {
var r = obj.attachEvent("on" + evType, fn);
if (r) this._registry.push({obj: obj, evType: evType, fn: fn, useCapture: false});
return r;
}
return false;
},
// Function for including external javascript files
includeJs: function (jsFilePath) {
var js = document.createElement("script");
js.type = "text/javascript";
js.src = jsFilePath;
//document.getElementsByTagName('head')[0].appendChild(js);
document.body.appendChild(js);
js = null;
},
// Function to check support for localStorage
supportsLocalStorage: function () {
try {
return 'localStorage' in window && window['localStorage'] !== null;
} catch(e){
return false;
}
},
// Helper function to search for user variable
findVar: function (id) {
if (Stage.variables[id] != null)
return Stage.variables[id].Value();
return null;
},
// Helper function to obtain value from stage or config variables
getValue: function (id) {
var ret = Helper.findVar(id);
if (ret != null) return ret;
return (Config[id]);
},
// Helper function to set value to stage or config variables
setValue: function (id, value) {
var ret = Helper.findVar(id);
if (ret != null)
Stage.variables[id].Set(value, false);
else {
Config[id] = value;
// a configuration variable has changed, reflect it back
Helper.configUpdate(id);
Stage.redraw = true;
}
},
// Helper function to update game config
configUpdate: function (id) {
switch(id) {
case "activeTheme":
// formstyle
if (Config.activeTheme.formFontStyle) {
Stage.formStyle.splice(0, Stage.formStyle.length);
var subs = Helper.parseFontString(Config.activeTheme.formFontStyle);
if (subs.length >= 4) {
Stage.formStyle.push(subs.slice(0,3).join(' '));
Stage.formStyle.push(subs.slice(3).join(' '));
}
else
Stage.formStyle.push(param);
}
// tooltips are automatically updated
// script box
if (Config.activeTheme.boxFontStyle) {
var subs = Helper.parseFontString(Config.activeTheme.boxFontStyle);
if (subs.length > 0) Stage.layers[4][0].fontWeight = subs[0];
if (subs.length > 1) {
Stage.layers[4][0].fontSize = subs[1];
Stage.layers[4][0].lineHeight = parseInt(subs[1]) + 4;
}
if (subs.length > 2) Stage.layers[4][0].fontFamily = subs[2].replace(/['|"]/g,'');
if (subs.length > 3) Stage.layers[4][0].fontColor = subs[3];
}
if (Config.activeTheme.boxTagStyle) {
var subs = Helper.parseFontString(Config.activeTheme.boxTagStyle);
if (subs.length > 0) Stage.layers[4][0].tagWeight = subs[0];
if (subs.length > 1) Stage.layers[4][0].tagSize = subs[1];
if (subs.length > 2) Stage.layers[4][0].tagFamily = subs[2].replace(/['|"]/g,'');
if (subs.length > 3) Stage.layers[4][0].tagColor = subs[3];
}
if (Config.activeTheme.boxDimStyle) {
var subs = Config.activeTheme.boxDimStyle.split(' ');
Stage.layers[4][0].dimStyle.splice(0,Stage.layers[4][0].dimStyle.length);
for (var idx in subs)
Stage.layers[4][0].dimStyle.push(subs[idx]);
}
if (Config.activeTheme.boxImageStyle)
Stage.layers[4][0].src = Config.activeTheme.boxImageStyle;
else
Stage.layers[4][0].src = null;
// balloon styling
Stage.layers[4][0].balloonStyle.splice(0,Stage.layers[4][0].balloonStyle.length);
if (Config.activeTheme.balloonStrokeStyle)
Stage.layers[4][0].balloonStyle.push(Config.activeTheme.balloonStrokeStyle);
else
Stage.layers[4][0].balloonStyle.push('transparent');
if (Config.activeTheme.balloonFillStyle) {
var subs = Config.activeTheme.balloonFillStyle.split(' ');
for (var idx in subs)
Stage.layers[4][0].balloonStyle.push(subs[idx]);
}
// configure CanvasText
Stage.layers[4][0].canvasText.config({
canvas: Stage.layers[4][0].context.canvas,
context: Stage.layers[4][0].context,
fontFamily: Stage.layers[4][0].fontFamily,
fontSize: Stage.layers[4][0].fontSize,
fontWeight: Stage.layers[4][0].fontWeight,
fontColor: Stage.layers[4][0].fontColor,
lineHeight: Stage.layers[4][0].lineHeight
});
Stage.layers[4][0].canvasText.defineClass("menu", {
fontFamily: Stage.layers[4][0].fontFamily,
fontSize: Stage.layers[4][0].fontSize,
fontWeight: Stage.layers[4][0].fontWeight,
fontColor: Stage.layers[4][0].fontColor,
fontStyle: "italic"
});
break;
case "volumeAudio":
if (typeof Config.volumeAudio == 'string') {
var volume = parseFloat(Config.volumeAudio);
if (isNaN(volume)) volume = 1.0;
Config.volumeAudio = volume;
}
for (var idx in Stage.sounds) {
for (var entry in Stage.sounds[idx]) {
if ((!Stage.sounds[idx][entry].isPaused) && (!Stage.sounds[idx][entry].isStopping))
Stage.sounds[idx][entry].audio.volume = Config.volumeAudio;
}
}
break;
case "volumeVideo":
if (typeof Config.volumeVideo == 'string') {
var volume = parseFloat(Config.volumeVideo);
if (isNaN(volume)) volume = 1.0;
Config.volumeVideo = volume;
}
for (var idx in Stage.videos) {
if (!Stage.videos[idx].isStopping) {
this.videos[idx].movie.volume = Config.volumeVideo;
}
}
break;
}
},
// Helper function to parse string arguments
parseArg: function (arg) {
var ret = Helper.findVar(arg);
if (ret != null) return ret;
ret = parseFloat(arg)
if (isNaN(ret)) {
if (arg.search(/(true|false)/g) != -1)
return (arg == 'true');
else
return arg;
}
else
return ret;
},
// Helper function to parse font string
parseFontString: function (s) {
var splitText = s.split(' ');
// combine as needed
var subs = new Array();
var combine = false;
var tempText = '';
for (var i in splitText) {
if (splitText[i].search(/['|"]/g)!=-1) {
if (combine == false) {
combine = true;
tempText = splitText[i];
}
else {
combine = false;
tempText += " " + splitText[i];
subs.push(tempText);
}
}
else {
if (combine == true)
tempText += " " + splitText[i];
else
subs.push(splitText[i]);
}
}
return subs;
},
// Helper function to check for image file
checkIfImage: function(src) {
// crude way of checking if src is an image
src = Helper.parseArg(src);
return (/jpg|jpeg|bmp|png|gif|svg/i.test(src));
},
// Helper function to check for audio file
checkIfAudio: function(src) {
src = Helper.parseArg(src);
return (/mp3|m4a|ogg|oga|wav|webma/i.test(src));
},
// Helper function to check for video file
checkIfVideo: function(src) {
src = Helper.parseArg(src);
return (/mp4|m4v|ogg|ogv|webm|webmv/i.test(src));
},
// Helper function to process audio
processAudio: function (obj, src, param) {
var mimeType = {"wav": 'audio/wav',
"ogg": 'audio/ogg;codecs="vorbis"',
"oga": 'audio/ogg;codecs="vorbis"',
"mp3": 'audio/mpeg',
"m4a": 'audio/mp4;codecs="mp4a.40.2"',
"webma": 'audio/webm; codecs="vorbis"',};
var index = -1;
src = Helper.parseArg(src);
for (var i in obj) {
if (obj[i].src.search(src) != -1) {
index = i;
break;
}
}
if (index != -1) {
switch (param.action) {
case "stop":
obj[index].Stop(false);
break;
case "pause":
obj[index].Pause();
break;
case "rewind":
obj[index].Rewind();
break;
case "remove":
if (param.bgs || param.se) {
obj[index].Stop(true);
obj[index].audio = null;
obj.splice(index, 1);
}
break;
case "play":
default:
obj[index].Play(false);
break;
}
}
else {
var s = new Sounds();
s.src = null;
var soundformat = (param.format) ? param.format : Config.audioFormat;
for (var i in soundformat) {
if (s.audio.canPlayType(mimeType[soundformat[i]]) != '') {
s.src = src + '.' + soundformat[i];
break;
}
}
if (s.src != null) {
if ((param.bgm) || (param.voice)){
while (obj.length > 0) {
var old = obj.shift();
old.Stop(true);
old.audio = null;
}
}
if ((param.se) || (param.voice))
s.repeat = (param.repeat > 0) ? param.repeat : 0;
else
s.repeat = -1;
s.delay = (param.delay > 0) ? param.delay : 0;
obj.push(s);
}
s = null;
}
},
// Helper function to process actor
processActor: function (chr, param) {
if (param.sprite) {
if (typeof param.sprite == 'string') {
for (var i in chr.sprites) {
if (chr.sprites[i] == param.sprite) {
if (chr.visible) {
chr.prevSprite = chr.activeSprite;
chr.alpha = 0;
}
chr.activeSprite = i;
break;
}
}
}
else {
if (chr.visible && (chr.activeSprite > -1)) {
chr.prevSprite = chr.activeSprite;
chr.alpha = 0;
}
chr.AddSprite(param.sprite[0], param.sprite[1], param.sprite[2]);
}
}
if (param.avatar) chr.AddAvatar(param.avatar);
if (param.position) {
var subs = param.position.split(' ');
for (var i in subs) {
if (subs[i].search(/(left|right|center|auto)/g) != -1) {
chr.posMode = subs[i];
if (subs[i] == 'left') {
chr.pos.vx = (Stage.canvas.width/4)>>0;
chr.target_pos.vx = chr.pos.vx;
}
if (subs[i] == 'right') {
chr.pos.vx = (Stage.canvas.width*3/4)>>0;
chr.target_pos.vx = chr.pos.vx;
}
if (subs[i] == 'center') {
chr.pos.vx = (Stage.canvas.width/2)>>0;
chr.target_pos.vx = chr.pos.vx;
}
}
}
}
var suffix;
if ((param.show == false) ||
(param.remove == 'actor') ||
(chr.sprites[chr.activeSprite].id == param.remove))
suffix = '_out';
else
suffix = '_in';
if (param.effect) {
var effect = param.effect;
chr.wait = true;
if (param.effect.indexOf('nowait')!=-1) {
chr.wait = false;
effect = param.effect.replace('nowait','');
}
var fxarr = effect.split(' ');
chr.effects = fxarr[0] + suffix;
chr.prevFx = fxarr[0];
if (fxarr.length > 1) chr.fxparam = fxarr.slice(1);
if (TransEffects[fxarr[0]]['_init'])
TransEffects[fxarr[0]]['_init'](chr, chr.fxparam);
}
else {
chr.wait = true;
chr.effects = chr.prevFx + suffix;
}
if (param.remove) {
if (param.remove == 'actor')
chr.pendingRemoval = true;
else
chr.RemoveSprite(param.remove);
}
if (param.time != null)
chr.transTime = (param.time>0) ? param.time : 0.1;
if ((param.say) || (param.balloon)) {
var cont = Helper.checkCurrentSpeaker(chr.nick, param.append);
if (!param.balloon)
Stage.layers[4][0].text = Helper.addTagToDialog(chr.nick, chr.color, param.say, cont);
else
Stage.layers[4][0].text = Helper.addTagToDialog(null, null, param.balloon, false);
Stage.layers[4][0].avatar = (chr.avatar != null) ? chr.avatar : null;
Stage.layers[4][0].alpha = 1;
Stage.layers[4][0].effects = "none";
Stage.layers[4][0].scrollOffsetY = 0;
Stage.layers[4][0].visible = true;
Stage.layers[4][0].changed = true;
Stage.layers[4][0].balloon = (param.balloon) ? param.id : null;
if (param.voice)
Helper.processAudio (Stage.sounds[3], param.voice, {voice:param.voice});
}
},
// Helper function to process backdrop
processBackdrop: function (obj, type, param) {
var nextid = 0;
if (obj.length > 0) {
// background/overlay layer has more than one element
// to conserve memory, maintain only the previous and the incoming backdrop
while (obj.length > 1) {
var object = obj.shift();
object.image = null;
object = null;
}
if (!param.src && (param.show != false)) {
// show the previous overlay
if (param.effect) {
var effect = param.effect;
obj[0].wait = true;
if (param.effect.indexOf('nowait')!=-1) {
obj[0].wait = false;
effect = param.effect.replace('nowait','');
}
var fxarr = effect.split(' ');
obj[0].effects = fxarr[0] + '_in';
if (fxarr.length>1) obj[0].fxparam = fxarr.slice(1);
if (TransEffects[fxarr[0]]['_init'])
TransEffects[fxarr[0]]['_init'](obj[0], obj[0].fxparam);
}
else {
obj[0].effects = '_in';
obj[0].wait = true;
}
obj[0].drawn = false;
obj[0].update = false;
return;
}
// do a reverse effect on the previous backdrop
obj[0].effects = '_out';
if (param.effect) {
var effect = param.effect;
obj[0].wait = true;
if (param.effect.indexOf('nowait')!=-1) {
obj[0].wait = false;
effect = param.effect.replace('nowait','');
}
var fxarr = effect.split(' ');
obj[0].effects = fxarr[0] + '_out';
if (fxarr.length>1) obj[0].fxparam = fxarr.slice(1);
if (TransEffects[fxarr[0]]['_init'])
TransEffects[fxarr[0]]['_init'](obj[0], obj[0].fxparam);
}
obj[0].drawn = false;
obj[0].update = false;
nextid = parseInt(obj[0].context.canvas.id.substr(2))+1;
if ((!param.src) && (param.show == false)) {
return;
}
}
// add the new backdrop
var bd = new Backdrop();
bd.type = type;
var objects = new Array();
if (param.objects) {
// assumes multiples of 3
for (var i=0; i<param.objects.length; i+=3) {
var item = {src:'', x:0, y:0};
item.src = param.objects[i];
item.x = param.objects[i+1];
item.y = param.objects[i+2];
objects.push(item);
}
}
bd.Create('bd' + nextid, param.src, (objects.length > 0) ? objects : null);
if (param.effect) {
if (param.effect.indexOf('nowait')!=-1) {
bd.wait = false;
param.effect = param.effect.replace('nowait','');
}
var fxarr = param.effect.split(' ');
bd.effects = fxarr[0] + '_in';
if (fxarr.length > 1)
bd.fxparam = fxarr.slice(1);
else {
if (type == 'scene')
bd.fxparam = (Stage.layers[0].length > 0);
else
bd.fxparam = (Stage.layers[2].length > 0);
}
if (TransEffects[fxarr[0]]['_init'])
TransEffects[fxarr[0]]['_init'](bd, bd.fxparam);
}
else
bd.effects = '_in';
if (param.time != null)
bd.transTime = (param.time>0) ? param.time : 0.1;
if (param.offset) {
if (typeof (param.offset) == "string")
bd.scroll = (param.offset == 'scroll') ? true : false;
else {
bd.scroll = false;
bd.offset = new Vector2d(param.offset[0],param.offset[1]);
}
}
else {
bd.scroll = false;
bd.offset = new Vector2d(0,0);
}
obj.push(bd);
bd = null;
},
// Helper function to process effects
processEffects: function (obj, elapsed) {
if (obj.effects.indexOf('done')!=-1) {
obj.drawn = true;
return;
}
var fxarr = obj.effects.split('_');
if (fxarr[0] == '') fxarr[0] = 'none';
if (fxarr.length == 1) fxarr.push('in');
obj.target_alpha = 1.0;
TransEffects[fxarr[0]]['_'+fxarr[1]](obj, elapsed);
},
// Helper function to draw visual elements
drawElements: function(obj, order) {
if (!obj.visible) return false;
Stage.context.save();
Stage.context.translate(obj.pos.vx - obj.scale * obj.origin.vx + obj.offset.vx,
obj.pos.vy - obj.scale * obj.origin.vy + obj.offset.vy);
Stage.context.scale(obj.scale, obj.scale);
Stage.context.drawImage(obj.context.canvas,
Stage.AddDepth(order/10, Stage.canvas.width/2 - Stage.coord.vx) +
Stage.shake * Stage.transTime * Math.sin(Stage.transTime*10*Math.PI),
Stage.AddDepth(order/10, Stage.canvas.height/2 - Stage.coord.vy)/2,
obj.context.canvas.width,
obj.context.canvas.height);
Stage.context.restore();
return (Stage.transTime>0);
},
// Helper to interpolate object position
interpolatePosition: function(obj) {
if (Stage.transTime <= 0) {
obj.pos.copy(obj.target_pos);
obj.startpos = null;
}
else {
if ((obj.startpos == undefined) || (obj.startpos == null))
obj.startpos = new Vector2d(obj.pos.vx, obj.pos.vy);
obj.pos.lerp(obj.target_pos, obj.startpos, Stage.transTime/obj.transTime);
}
},
// Helper function to get current speaker
checkCurrentSpeaker: function(name, append) {
var current_speaker = '';
var startIdx = Stage.layers[4][0].text.indexOf(Stage.layers[4][0].tagFamily+";\'>");
var endIdx = Stage.layers[4][0].text.indexOf("</style><br/>");
if ((startIdx != -1) && (endIdx != -1)) {
current_speaker = Stage.layers[4][0].text.substr(startIdx+Stage.layers[4][0].tagFamily.length+3,
endIdx-startIdx-Stage.layers[4][0].tagFamily.length-3);
}
//return current_speaker;
var same_window = false;
if ((current_speaker != name) || (append == false)) {
Stage.layers[4][0].cont = false;
same_window = false;
}
else if (append == true) {
Stage.layers[4][0].cont = true;
same_window = true;
}
else { // whatever value including undefined
same_window = Stage.layers[4][0].cont;
}
return same_window;
},
// Helper function to add name tag, if any, to dialog
addTagToDialog: function(tag, tagcolor, text, append) {
var dialog = '';
if (tag != null) {
dialog = "<style=\'font-weight:" + Stage.layers[4][0].tagWeight +
";color:" + tagcolor +
";font-size:" + Stage.layers[4][0].tagSize +
";font-family:" + Stage.layers[4][0].tagFamily +
";\'>" + tag + "</style><br/>";
}
if (append) {
// strip speaker name here if present
var index = Stage.layers[4][0].text.indexOf("</style><br/>");
if (index!=-1)
dialog += Stage.layers[4][0].text.slice(index+13);
else
dialog += Stage.layers[4][0].text;
dialog += '\n';
}
if (text != null) {
var match = text.match(/#([^#|\s]+)#/g);
for (var i in match)
text = text.replace(match[i],Helper.parseArg(match[i].replace(/#/g,'')));
dialog += Helper.parseArg(text).toString().replace(/\n/g,"<br/>");
}
return Helper.filterBadWords(dialog);
},
// Helper function to show tooltip on forms
showTooltip: function(tip) {
Stage.context.save();
Stage.context.fillStyle = Config.activeTheme.formTipColor;
Stage.context.shadowColor = 'black';
Stage.context.shadowBlur = 2;
var subs = Helper.parseFontString(Config.activeTheme.formTipStyle);
Stage.context.font = subs.slice(0,3).join(' ');
var w = Stage.context.measureText(tip).width;
var h = parseInt(subs[1]);
var x = Math.min(Stage.coord.vx, Stage.canvas.width - w - 5);
var y = Math.min(Stage.coord.vy, Stage.canvas.height - 2*h - 5);
Stage.context.fillRect(x-5, y-5+h, w+10, h+10);
//Stage.context.strokeRect(x-5, y-5+h, w+10, h+10);
Stage.context.shadowBlur = 0;
Stage.context.fillStyle = subs.slice(3).join(' ');
Stage.context.textBaseline = 'top';
Stage.context.fillText(tip, x, y + h);
Stage.context.restore();
},
// Helper function to filter words, if enabled
filterBadWords: function (str) {
if (Config.gameMatureFilter) {
var pattern = "/(^|\\n?|\\s*)("+Config.gameBadWords.join('|')+")($|\\n?|\\s*)/img";
return str.replace(eval(pattern), Config.gameAltWord);
}
else
return str;
},
// Helper function to display readable time
convertTime: function (val) {
var sec = val % 60;
var min = (val - sec) / 60;
min %= 60;
var hr = (val - sec - 60*min) / 3600;
if (hr > 0)
return (hr.toString() + ':' + ((min<10)?'0':'') + min.toString() + ':' + ((sec<10)?'0':'') + sec.toString());
else
return (min.toString() + ':' + ((sec<10)?'0':'') + sec.toString());
},
createBalloon: function (ctx, x, y, w, h, r, ptr) {
if (w < 2 * r) r = w / 2;
if (h < 2 * r) r = h / 2;
ctx.beginPath();
ctx.moveTo(r, y);
ctx.moveTo(x+r, y);
ctx.lineTo(x+w/4-y/2,y);
if (ptr) ctx.lineTo(x+w/4,0);
ctx.lineTo(x+w/4+y/2,y);
ctx.lineTo(x+w*3/4-y/2,y);
if (!ptr) ctx.lineTo(x+w*3/4,0);
ctx.lineTo(x+w*3/4+y/2,y);
ctx.lineTo(w-r, y);
ctx.quadraticCurveTo(w, y, w, y+r);
ctx.lineTo(w, h-r);
ctx.quadraticCurveTo(w, h, w-r, h);
ctx.lineTo(x+r, h);
ctx.quadraticCurveTo(x, h, x, h-r);
ctx.lineTo(x, y+r);
ctx.quadraticCurveTo(x, y, x+r, y);
// Opera doesn't render arcTo correctly, so used quadratic instead
/*ctx.arcTo(w, y, w, h, r);
ctx.arcTo(w, h, x, h, r);
ctx.arcTo(x, h, x, y, r);
ctx.arcTo(x, y, w, y, r); */
ctx.closePath();
}
}
// Function to determine optimal animation frame
window.requestAnimFrame = (function(callback){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback){
window.setTimeout(callback, 1000 / 60);
};
})();
// Helper function on window resize
window.onresize = (function(){
if (!Config.movieOnCanvas) {
for (var idx in Stage.videos) {
var x = Stage.canvas.offsetLeft + (1-Config.movieSize)/2 * Stage.canvas.width;
var y = Stage.canvas.offsetTop + (1-Config.movieSize)/2 * Stage.canvas.height;
Stage.videos[idx].movie.setAttribute('style', 'position:absolute; left:'+x+'px; top:'+y+'px');
}
}
for (var i=0; i<document.forms.length; i++) {
var x = Stage.canvas.offsetLeft;
var y = Stage.canvas.offsetTop;
document.forms[i].setAttribute('style', 'position:absolute; left:'+x+'px; top:'+y+'px;');
}
});
///////////////////////////////////////////////////////////////////////////////
// Effects class
///////////////////////////////////////////////////////////////////////////////
var TransEffects = {
// effect completed
done: {
_in: function(obj, elapsed) {
obj.drawn = true;
}
},
// default/no effect
none: {
_in: function(obj, elapsed) {
obj.Reset(false);
obj.alpha = 1.0;
obj.effects = 'done';
obj.drawn = true;
},
_out: function(obj, elapsed) {
obj.alpha = 0.0;
obj.effects = 'done';
obj.drawn = true;
obj.redraw = true;
obj.visible = false;
}
},
// fade effect
fade: {
_init: function(obj, param) {
if ((obj.effects.indexOf('_in')!=-1) && (param==true))
obj.alpha = -1;
},
_in: function(obj, elapsed) {
obj.Reset(false);
if (obj.alpha >= obj.target_alpha) {
obj.effects = 'done';
obj.drawn = true;
}
else {
obj.alpha += elapsed/(obj.transTime * 1000);
}
if (!obj.wait) obj.drawn = true;
},
_out: function(obj, elapsed) {
if (obj.alpha <= 0.0) {
obj.effects = 'done';
obj.drawn = true;
obj.visible = false;
}
else {
obj.alpha -= elapsed/(obj.transTime * 1000);
}
obj.redraw = true;
if (!obj.wait) obj.drawn = true;
}
},
// ghost effect
ghost: {
_init: function(obj, param) {
obj.target_alpha = 0.5;
},
_in: function(obj, elapsed) {
TransEffects.fade._in(obj, elapsed);
},
_out: function(obj, elapsed) {
TransEffects.fade._out(obj, elapsed);
}
},
// dissolve effect
dissolve: {
_in: function(obj, elapsed) {
TransEffects.fade._in(obj, elapsed);
},
_out: function(obj, elapsed) {
TransEffects.fade._out(obj, elapsed);
}
},
// scale effect
scale: {
_init: function(obj, param) {
obj.size = Helper.parseArg(param[0]);//parseFloat(param[0]);
obj.fxparam = obj.size;
},
_in: function(obj, elapsed) {
obj.Reset(false);
obj.alpha = 1.0;
if (!obj.wait) obj.drawn = true;
if (Math.abs(1-obj.scale/obj.fxparam) <= 0.01) {
obj.effects = 'done';
obj.drawn = true;
}
else
obj.scale *= Math.exp(Math.log(obj.fxparam/obj.scale)*elapsed/(obj.transTime * 1000));
},
_out: function(obj, elapsed) {
if (obj.type == 'scene')
TransEffects.none._in(obj, elapsed);
else
TransEffects.none._out(obj, elapsed);
}
},
// rotate effect
rotate: {
_init: function(obj, param) {
obj.fxparam = Helper.parseArg(param[0]);//parseFloat(param[0]);
obj.orientation += obj.fxparam;
obj.orientation %= 360;
},
_in: function(obj, elapsed) {
obj.Reset(false);
obj.alpha = 1.0;
if (!obj.wait) obj.drawn = true;
if (Math.abs(obj.accum_rotation - obj.fxparam) <= 0.1) {
obj.effects = 'done';
obj.rotation = 0;
obj.accum_rotation = 0;
obj.drawn = true;
}
else {
obj.rotation = (obj.fxparam - obj.accum_rotation)* elapsed/(obj.transTime * 1000);
obj.accum_rotation += obj.rotation;
}
},
_out: function(obj, elapsed) {
if (obj.type == 'scene')
TransEffects.none._in(obj, elapsed);
else
TransEffects.none._out(obj, elapsed);
}
},
// translate effect
translate: {
_init: function(obj, param) {
if (param && (param.length>1)) {
obj.target_pos.vx += Helper.parseArg(param[0]);//parseFloat(param[0]);
obj.target_pos.vy += Helper.parseArg(param[1]);//parseFloat(param[1]);
}
},
_in: function(obj, elapsed) {
obj.Reset(false);
obj.alpha = 1.0;
if (!obj.wait) obj.drawn = true;
Helper.interpolatePosition(obj);
if (Stage.transTime <=0) {
obj.effects = 'done';
obj.drawn = true;
}
},
_out: function(obj, elapsed) {
if (obj.type == 'scene')
TransEffects.none._in(obj, elapsed);
else
TransEffects.none._out(obj, elapsed);
},
},
// movement effects
left: {
_init: function(obj, param) {
if (obj.effects.indexOf('_in')!=-1)
obj.pos.vx = -obj.context.canvas.width;
else
obj.target_pos.vx = -obj.context.canvas.width;
},
_in: function(obj, elapsed) {
obj.Reset(false);
obj.alpha = 1.0;
if (!obj.wait) obj.drawn = true;
Helper.interpolatePosition(obj);
if (Stage.transTime <=0) {
obj.effects = 'done';
obj.drawn = true;
}
},
_out: function(obj, elapsed) {
if (obj.type == 'scene') {
TransEffects.none._in(obj, elapsed);
}
else {
obj.redraw = true;
if (!obj.wait) obj.drawn = true;