enjine.min.js

var Enjine={GameCanvas:function(){this.BackBufferContext2D=this.BackBuffer=this.Context2D=this.Canvas=null}};
Enjine.GameCanvas.prototype={Initialize:function(a,b,c){this.Canvas=document.getElementById(a);this.Context2D=this.Canvas.getContext("2d");this.BackBuffer=document.createElement("canvas");this.BackBuffer.width=b;this.BackBuffer.height=c;this.BackBufferContext2D=this.BackBuffer.getContext("2d")},BeginDraw:function(){this.BackBufferContext2D.clearRect(0,0,this.BackBuffer.width,this.BackBuffer.height);this.Context2D.clearRect(0,0,this.Canvas.width,this.Canvas.height)},EndDraw:function(){this.Context2D.drawImage(this.BackBuffer,
0,0,this.BackBuffer.width,this.BackBuffer.height,0,0,this.Canvas.width,this.Canvas.height)}};Enjine.Keys={A:65,B:66,C:67,D:68,E:69,F:70,G:71,H:72,I:73,J:74,K:75,L:76,M:77,N:78,O:79,P:80,Q:81,R:82,S:83,T:84,U:85,V:86,W:87,X:88,Y:89,Z:80,Left:37,Up:38,Right:39,Down:40};
Enjine.KeyboardInput={Pressed:[],Initialize:function(){var a=this;document.onkeydown=function(b){a.KeyDownEvent(b)};document.onkeyup=function(b){a.KeyUpEvent(b)}},IsKeyDown:function(a){if(this.Pressed[a]!=null)return this.Pressed[a];return!1},KeyDownEvent:function(a){this.Pressed[a.keyCode]=!0;this.PreventScrolling(a)},KeyUpEvent:function(a){this.Pressed[a.keyCode]=!1;this.PreventScrolling(a)},PreventScrolling:function(a){a.keyCode>=37&&a.keyCode<=40&&a.preventDefault()}};
Enjine.Resources={Images:{},Sounds:{},Destroy:function(){delete this.Images;delete this.Sounds;return this},AddImage:function(a,b){var c=new Image;this.Images[a]=c;c.src=b;return this},AddImages:function(a){for(var b=0;b<a.length;b++){var c=new Image;this.Images[a[b].name]=c;c.src=a[b].src}return this},ClearImages:function(){delete this.Images;this.Images={};return this},RemoveImage:function(a){delete this.Images[a];return this},AddSound:function(a,b,c){this.Sounds[a]=[];this.Sounds[a].index=0;c||
(c=3);for(var d=0;d<c;d++)this.Sounds[a][d]=new Audio(b);return this},ClearSounds:function(){delete this.Sounds;this.Sounds={};return this},RemoveSound:function(a){delete this.Sounds[a];return this},PlaySound:function(a,b){if(this.Sounds[a].index>=this.Sounds[a].length)this.Sounds[a].index=0;b&&this.Sounds[a][this.Sounds[a].index].addEventListener("ended",this.LoopCallback,!1);this.Sounds[a][this.Sounds[a].index++].play();return this.Sounds[a].index},PauseChannel:function(a,b){this.Sounds[a][b].paused||
this.Sounds[a][b].pause();return this},PauseSound:function(a){for(var b=0;b<this.Sounds[a].length;b++)this.Sounds[a][b].paused||this.Sounds[a][b].pause();return this},ResetChannel:function(a,b){this.Sounds[a][b].currentTime=0;this.StopLoop(a,b);return this},ResetSound:function(a){for(var b=0;b<this.Sounds[a].length;b++)this.Sounds[a].currentTime=0,this.StopLoop(a,b);return this},StopLoop:function(a,b){this.Sounds[a][b].removeEventListener("ended",this.LoopCallback,!1)},LoopCallback:function(){this.currentTime=
-1;this.play()}};Enjine.Drawable=function(){this.ZOrder=0};Enjine.Drawable.prototype={Draw:function(){}};Enjine.GameStateContext=function(a){this.State=null;if(a!=null)this.State=a,this.State.Enter()};Enjine.GameStateContext.prototype={ChangeState:function(a){this.State!=null&&this.State.Exit();this.State=a;this.State.Enter()},Update:function(a){this.State.CheckForChange(this);this.State.Update(a)},Draw:function(a){this.State.Draw(a)}};Enjine.GameState=function(){};
Enjine.GameState.prototype={Enter:function(){},Exit:function(){},Update:function(){},Draw:function(){},CheckForChange:function(){}};Enjine.GameTimer=function(){this.FramesPerSecond=1E3/30;this.LastTime=0;this.UpdateObject=this.IntervalFunc=null};
Enjine.GameTimer.prototype={Start:function(){this.LastTime=(new Date).getTime();var a=this;this.IntervalFunc=setInterval(function(){a.Tick()},this.FramesPerSecond)},Tick:function(){if(this.UpdateObject!=null){var a=(new Date).getTime(),b=(a-this.LastTime)/1E3;this.LastTime=a;this.UpdateObject.Update(b)}},Stop:function(){clearInterval(this.IntervalFunc)}};Enjine.Camera=function(){this.Y=this.X=0};Enjine.DrawableManager=function(){this.Unsorted=!0;this.Objects=[]};
Enjine.DrawableManager.prototype={Add:function(a){this.Objects.push(a);this.Unsorted=!0},AddRange:function(a){this.Objects=this.Objects.concat(a);this.Unsorted=!0},Clear:function(){this.Objects.splice(0,this.Objects.length)},Contains:function(a){for(var b=this.Objects.length;b--;)if(this.Objects[b]===a)return!0;return!1},Remove:function(a){this.Objects.splice(this.Objects.indexOf(a),1)},RemoveAt:function(a){this.Objects.splice(a,1)},RemoveRange:function(a,b){this.Objects.splice(a,b)},RemoveList:function(a){for(var b=
0,c=0,c=0;c<a.length;)for(b=0;b<this.Objects.length;b++)if(this.Objects[b]===a[c]){this.Objects.splice(b,1);a.splice(c,1);c--;break}},Update:function(a){for(var b=0,b=0;b<this.Objects.length;b++)this.Objects[b].Update&&this.Objects[b].Update(a)},Draw:function(a,b){if(this.Unsorted)this.Unsorted=!1,this.Objects.sort(function(a,b){return a.ZOrder-b.ZOrder});for(var c=0,c=0;c<this.Objects.length;c++)this.Objects[c].Draw&&this.Objects[c].Draw(a,b)}};
Enjine.Sprite=function(){this.Y=this.X=0;this.Image=null};Enjine.Sprite.prototype=new Enjine.Drawable;Enjine.Sprite.prototype.Draw=function(a,b){a.drawImage(this.Image,this.X-b.X,this.Y-b.Y)};Enjine.SpriteFont=function(a,b,c,d,e){this.Image=b;this.Letters=e;this.LetterWidth=c;this.LetterHeight=d;this.Strings=a};Enjine.SpriteFont.prototype=new Enjine.Drawable;
Enjine.SpriteFont.prototype.Draw=function(a){for(var b=0;b<this.Strings.length;b++)for(var c=this.Strings[b],d=0;d<c.String.length;d++){var e=c.String.charCodeAt(d);a.drawImage(this.Image,this.Letters[e].X,this.Letters[e].Y,this.LetterWidth,this.LetterHeight,c.X+this.LetterWidth*(d+1),c.Y,this.LetterWidth,this.LetterHeight)}};Enjine.FrameSprite=function(){this.FrameHeight=this.FrameWidth=this.FrameY=this.FrameX=0};Enjine.FrameSprite.prototype=new Enjine.Sprite;
Enjine.FrameSprite.prototype.Draw=function(a,b){a.drawImage(this.Image,this.FrameX,this.FrameY,this.FrameWidth,this.FrameHeight,this.X-b.X,this.Y-b.Y,this.FrameWidth,this.FrameHeight)};Enjine.AnimationSequence=function(a,b,c,d){this.StartRow=a;this.StartColumn=b;this.EndRow=c;this.EndColumn=d;this.SingleFrame=!1;if(this.StartRow==this.EndRow&&this.StartColumn==this.EndColumn)this.SingleFrame=!0};
Enjine.AnimatedSprite=function(){this.LastElapsed=0;this.FramesPerSecond=0.05;this.CurrentSequence=null;this.Looping=this.Playing=!1;this.Columns=this.Rows=0;this.Sequences={}};Enjine.AnimatedSprite.prototype=new Enjine.FrameSprite;
Enjine.AnimatedSprite.prototype.Update=function(a){if(!this.CurrentSequence.SingleFrame&&this.Playing&&(this.LastElapsed-=a,!(this.LastElapsed>0))){this.LastElapsed=this.FramesPerSecond;this.FrameX+=this.FrameWidth;if(this.FrameX>this.Image.width-this.FrameWidth&&(this.FrameX=0,this.FrameY+=this.FrameHeight,this.FrameY>this.Image.height-this.FrameHeight))this.FrameY=0;a=!1;this.FrameX>this.CurrentSequence.EndColumn*this.FrameWidth&&this.FrameY==this.CurrentSequence.EndRow*this.FrameHeight?a=!0:this.FrameX==
0&&this.FrameY>this.CurrentSequence.EndRow*this.FrameHeight&&(a=!0);if(a)this.Looping?(this.FrameX=this.CurrentSequence.StartColumn*this.FrameWidth,this.FrameY=this.CurrentSequence.StartRow*this.FrameHeight):this.Playing=!1}};Enjine.AnimatedSprite.prototype.PlaySequence=function(a,b){this.Playing=!0;this.Looping=b;this.CurrentSequence=this.Sequences["seq_"+a];this.FrameX=this.CurrentSequence.StartColumn*this.FrameWidth;this.FrameY=this.CurrentSequence.StartRow*this.FrameHeight};
Enjine.AnimatedSprite.prototype.StopLooping=function(){this.Looping=!1};Enjine.AnimatedSprite.prototype.StopPlaying=function(){this.Playing=!1};Enjine.AnimatedSprite.prototype.SetFrameWidth=function(a){this.FrameWidth=a;this.Rows=this.Image.width/this.FrameWidth};Enjine.AnimatedSprite.prototype.SetFrameHeight=function(a){this.FrameHeight=a;this.Columns=this.Image.height/this.FrameHeight};Enjine.AnimatedSprite.prototype.SetColumnCount=function(a){this.FrameWidth=this.Image.width/a;this.Columns=a};
Enjine.AnimatedSprite.prototype.SetRowCount=function(a){this.FrameHeight=this.Image.height/a;this.Rows=a};Enjine.AnimatedSprite.prototype.AddExistingSequence=function(a,b){this.Sequences["seq_"+a]=b};Enjine.AnimatedSprite.prototype.AddNewSequence=function(a,b,c,d,e){this.Sequences["seq_"+a]=new Enjine.AnimationSequence(b,c,d,e)};Enjine.AnimatedSprite.prototype.DeleteSequence=function(a){this.Sequences["seq_"+a]!=null&&delete this.Sequences["seq_"+a]};
Enjine.AnimatedSprite.prototype.ClearSequences=function(){delete this.Sequences;this.Sequences={}};Enjine.Collideable=function(a,b,c,d){this.Base=a;this.X=a.X;this.Y=a.Y;this.Width=b;this.Height=c;this.CollisionEvent=d!=null?d:function(){}};Enjine.Collideable.prototype={Update:function(){this.X=this.Base.X;this.Y=this.Base.Y},CheckCollision:function(a){!(this.Y+this.Height<a.Y)&&!(this.Y>a.Y+a.Height)&&!(this.X+this.Width<a.X)&&!(this.X>a.X+a.Width)&&(this.CollisionEvent(a),a.CollisionEvent(this))}};
Enjine.Application=function(){this.stateContext=this.timer=this.canvas=null};Enjine.Application.prototype={Update:function(a){this.stateContext.Update(a);this.canvas.BeginDraw();this.stateContext.Draw(this.canvas.BackBufferContext2D);this.canvas.EndDraw()},Initialize:function(a,b,c){this.canvas=new Enjine.GameCanvas;this.timer=new Enjine.GameTimer;Enjine.KeyboardInput.Initialize();this.canvas.Initialize("canvas",b,c);this.timer.UpdateObject=this;this.stateContext=new Enjine.GameStateContext(a);this.timer.Start()}};