Updated impact engine lib from 1.20 to 1.22

.gitignore

@@ -1 +1,2 @@
 design/design-layout.psd
+.DS_Store

dev/lib/impact/animation.js

@@ -50,7 +50,7 @@ ig.Animation = ig.Class.extend({
 	
 	
 	rewind: function() {
-		this.timer.reset();
+		this.timer.set();
 		this.loopCount = 0;
 		this.tile = this.sequence[0];
 		return this;

dev/lib/impact/background-map.js

@@ -48,6 +48,10 @@ ig.BackgroundMap = ig.Map.extend({
 		var totalWidth = this.width * this.tilesize * ig.system.scale,
 			totalHeight = this.height * this.tilesize * ig.system.scale;
 		
+		// If this layer is smaller than the chunkSize, adjust the chunkSize
+		// accordingly, so we don't have as much overdraw
+		this.chunkSize = Math.min( Math.max(totalWidth, totalHeight), this.chunkSize );
+			
 		var chunkCols = Math.ceil(totalWidth / this.chunkSize),
 			chunkRows = Math.ceil(totalHeight / this.chunkSize);
 		
@@ -133,8 +137,11 @@ ig.BackgroundMap = ig.Map.extend({
 			
 			
 		if( this.repeat ) {
-			dx %= this.width * this.tilesize * ig.system.scale;
-			dy %= this.height * this.tilesize * ig.system.scale;
+			var w = this.width * this.tilesize * ig.system.scale;
+			dx = (dx%w + w) % w;
+
+			var h = this.height * this.tilesize * ig.system.scale;
+			dy = (dy%h + h) % h;
 		}
 		
 		var minChunkX = Math.max( Math.floor(dx / this.chunkSize), 0 ),
@@ -168,18 +175,18 @@ ig.BackgroundMap = ig.Map.extend({
 					ig.system.context.strokeRect( x, y, this.chunkSize, this.chunkSize );
 				}
 				
-				// If we repeat in X and this chunks width wasn't the full chunk size
+				// If we repeat in X and this chunk's width wasn't the full chunk size
 				// and the screen is not already filled, we need to draw anohter chunk
 				// AND nudge it to be flush with the last chunk
 				if( this.repeat && chunk.width < this.chunkSize && x + chunk.width < ig.system.realWidth ) {
-					nudgeX = this.chunkSize - chunk.width;
+					nudgeX += this.chunkSize - chunk.width;
 					maxChunkX++;
 				}
 			}
 			
 			// Same as above, but for Y
 			if( this.repeat && chunk.height < this.chunkSize && y + chunk.height < ig.system.realHeight	) {
-				nudgeY = this.chunkSize - chunk.height;
+				nudgeY += this.chunkSize - chunk.height;
 				maxChunkY++;
 			}
 		}
@@ -209,9 +216,7 @@ ig.BackgroundMap = ig.Map.extend({
 			// Repeat Y?
 			if( tileY >= this.height || tileY < 0 ) {
 				if( !this.repeat ) { continue; }
-				tileY = tileY > 0
-					? tileY % this.height
-					: ((tileY+1) % this.height) + this.height - 1;
+				tileY = (tileY%this.height + this.height) % this.height;
 			}
 			
 			for( var mapX = -1, pxX = pxMinX; pxX < pxMaxX; mapX++, pxX += this.tilesize ) {
@@ -220,9 +225,7 @@ ig.BackgroundMap = ig.Map.extend({
 				// Repeat X?
 				if( tileX >= this.width || tileX < 0 ) {
 					if( !this.repeat ) { continue; }
-					tileX = tileX > 0
-						? tileX % this.width
-						: ((tileX+1) % this.width) + this.width - 1;
+					tileX = (tileX%this.width + this.width) % this.width;
 				}
 				
 				// Draw!

dev/lib/impact/debug/menu.js

@@ -39,7 +39,7 @@ ig.Debug = ig.Class.extend({
 		var style = ig.$new('link');
 		style.rel = 'stylesheet';
 		style.type = 'text/css';
-		style.href = 'lib/impact/debug/debug.css';
+		style.href = ig.prefix + 'lib/impact/debug/debug.css';
 		ig.$('body')[0].appendChild( style );
 
 		// Create the Debug Container

dev/lib/impact/font.js

@@ -121,21 +121,16 @@ ig.Font = ig.Image.extend({
 		this.widthMap = [];
 		this.indices = [];
 		
-		var canvas = ig.$new('canvas');
-		canvas.width = image.width;
-		canvas.height = image.height;
-		var ctx = canvas.getContext('2d');
-		ctx.drawImage( image, 0, 0 );
-		var px = ctx.getImageData(0, image.height-1, image.width, 1);
+		var px = ig.getImagePixels( image, 0, image.height-1, image.width, 1 );
 		
 		var currentChar = 0;
 		var currentWidth = 0;
 		for( var x = 0; x < image.width; x++ ) {
 			var index = x * 4 + 3; // alpha component of this pixel
-			if( px.data[index] != 0 ) {
+			if( px.data[index] > 127 ) {
 				currentWidth++;
 			}
-			else if( px.data[index] == 0 && currentWidth ) {
+			else if( px.data[index] < 128 && currentWidth ) {
 				this.widthMap.push( currentWidth );
 				this.indices.push( x-currentWidth );
 				currentChar++;

dev/lib/impact/image.js

@@ -86,16 +86,11 @@ ig.Image = ig.Class.extend({
 		// and copied into another offscreen canvas with the new size. 
 		// The scaled offscreen canvas becomes the image (data) of this object.
 		
+		var origPixels = ig.getImagePixels( this.data, 0, 0, this.width, this.height );
+		
 		var widthScaled = this.width * scale;
 		var heightScaled = this.height * scale;
 
-		var orig = ig.$new('canvas');
-		orig.width = this.width;
-		orig.height = this.height;
-		var origCtx = orig.getContext('2d');
-		origCtx.drawImage( this.data, 0, 0, this.width, this.height, 0, 0, this.width, this.height );
-		var origPixels = origCtx.getImageData(0, 0, this.width, this.height);
-		
 		var scaled = ig.$new('canvas');
 		scaled.width = widthScaled;
 		scaled.height = heightScaled;

dev/lib/impact/impact.js

@@ -1,6 +1,6 @@
 
 // -----------------------------------------------------------------------------
-// Impact Game Engine 1.20
+// Impact Game Engine 1.22
 // http://impactjs.com/
 // -----------------------------------------------------------------------------
 
@@ -56,14 +56,26 @@ Array.prototype.random = function() {
 	return this[ Math.floor(Math.random() * this.length) ];
 };
 
-Function.prototype.bind = Function.prototype.bind || function(bind) {
-	var self = this;
-	return function(){
-		var args = Array.prototype.slice.call(arguments);
-		return self.apply(bind || null, args);
-	};
-};
+Function.prototype.bind = Function.prototype.bind || function (oThis) {
+	if( typeof this !== "function" ) {
+		throw new TypeError("Function.prototype.bind - what is trying to be bound is not callable");
+	}
 
+	var aArgs = Array.prototype.slice.call(arguments, 1),
+		fToBind = this,
+		fNOP = function () {},
+		fBound = function () {
+			return fToBind.apply(
+				(this instanceof fNOP && oThis ? this : oThis),
+				aArgs.concat(Array.prototype.slice.call(arguments))
+			);
+		};
+
+	fNOP.prototype = this.prototype;
+	fBound.prototype = new fNOP();
+
+	return fBound;
+};
 
 
 // -----------------------------------------------------------------------------
@@ -72,7 +84,7 @@ Function.prototype.bind = Function.prototype.bind || function(bind) {
 window.ig = {
 	game: null,
 	debug: null,
-	version: '1.20',
+	version: '1.22',
 	global: window,
 	modules: {},
 	resources: [],
@@ -164,6 +176,55 @@ window.ig = {
 		return values;
 	},
 
+	// Ah, yes. I love vendor prefixes. So much fun!
+	setVendorAttribute: function( el, attr, val ) {
+		var uc = attr.charAt(0).toUpperCase() + attr.substr(1);
+		el[attr] = el['ms'+uc] = el['moz'+uc] = el['webkit'+uc] = el['o'+uc] = val;
+	},
+
+
+	getVendorAttribute: function( el, attr ) {
+		var uc = attr.charAt(0).toUpperCase() + attr.substr(1);
+		return el[attr] || el['ms'+uc] || el['moz'+uc] || el['webkit'+uc] || el['o'+uc];
+	},
+
+
+	normalizeVendorAttribute: function( el, attr ) {
+		var prefixedVal = ig.getVendorAttribute( el, attr );
+		if( !el[attr] && prefixedVal ) {
+			el[attr] = prefixedVal;
+		}
+	},
+
+
+	// This function normalizes getImageData to extract the real, actual
+	// pixels from an image. The naive method recently failed on retina
+	// devices with a backgingStoreRatio != 1
+	getImagePixels: function( image, x, y, width, height ) {
+		var canvas = ig.$new('canvas');
+		canvas.width = image.width;
+		canvas.height = image.height;
+		var ctx = canvas.getContext('2d');
+		
+		// Try to draw pixels as accurately as possible
+		ig.System.SCALE.CRISP(canvas, ctx);
+
+		var ratio = ig.getVendorAttribute( ctx, 'backingStorePixelRatio' ) || 1;
+		ig.normalizeVendorAttribute( ctx, 'getImageDataHD' );
+
+		var realWidth = image.width / ratio,
+			realHeight = image.height / ratio;
+
+		canvas.width = Math.ceil( realWidth );
+		canvas.height = Math.ceil( realHeight );
+
+		ctx.drawImage( image, 0, 0, realWidth, realHeight );
+		
+		return (ratio === 1)
+			? ctx.getImageData( x, y, width, height )
+			: ctx.getImageDataHD( x, y, width, height );
+	},
+
 	
 	module: function( name ) {
 		if( ig._current ) {
@@ -324,8 +385,10 @@ window.ig = {
 		ig.ua.iPhone4 = (ig.ua.iPhone && ig.ua.pixelRatio == 2);
 		ig.ua.iPad = /iPad/i.test(navigator.userAgent);
 		ig.ua.android = /android/i.test(navigator.userAgent);
+		ig.ua.winPhone = /Windows Phone/i.test(navigator.userAgent);
 		ig.ua.iOS = ig.ua.iPhone || ig.ua.iPad;
-		ig.ua.mobile = ig.ua.iOS || ig.ua.android;
+		ig.ua.mobile = ig.ua.iOS || ig.ua.android || ig.ua.winPhone;
+		ig.ua.touchDevice = (('ontouchstart' in window) || (window.navigator.msMaxTouchPoints));
 	},
 	
 	
@@ -355,13 +418,8 @@ window.ig = {
 // Provide ig.setAnimation and ig.clearAnimation as a compatible way to use
 // requestAnimationFrame if available or setInterval otherwise
 
-// Find vendor prefix, if any
-var vendors = ['ms', 'moz', 'webkit', 'o'];
-for( var i = 0; i < vendors.length && !window.requestAnimationFrame; i++ ) {
-	window.requestAnimationFrame = window[vendors[i]+'RequestAnimationFrame'];
-}
-
 // Use requestAnimationFrame if available
+ig.normalizeVendorAttribute( window, 'requestAnimationFrame' );
 if( window.requestAnimationFrame ) {
 	var next = 1,
 		anims = {};
@@ -481,13 +539,19 @@ window.ig.Class.extend = function(prop) {
 	}
 	
 	Class.prototype = prototype;
-	Class.constructor = Class;
+	Class.prototype.constructor = Class;
 	Class.extend = window.ig.Class.extend;
 	Class.inject = inject;
 	
 	return Class;
 };
 
+// Merge the ImpactMixin - if present - into the 'ig' namespace. This gives other
+// code the chance to modify 'ig' before it's doing any work.
+if( window.ImpactMixin ) {
+	ig.merge(ig, window.ImpactMixin);
+}
+
 })(window);
 
 

dev/lib/impact/input.js

@@ -125,9 +125,18 @@ ig.Input = ig.Class.extend({
 		ig.system.canvas.addEventListener('mouseup', this.keyup.bind(this), false );
 		ig.system.canvas.addEventListener('mousemove', this.mousemove.bind(this), false );
 		
+		if( ig.ua.touchDevice ) {
+			// Standard
 			ig.system.canvas.addEventListener('touchstart', this.keydown.bind(this), false );
 			ig.system.canvas.addEventListener('touchend', this.keyup.bind(this), false );
 			ig.system.canvas.addEventListener('touchmove', this.mousemove.bind(this), false );
+			
+			// MS
+			ig.system.canvas.addEventListener('MSPointerDown', this.keydown.bind(this), false );
+			ig.system.canvas.addEventListener('MSPointerUp', this.keyup.bind(this), false );
+			ig.system.canvas.addEventListener('MSPointerMove', this.mousemove.bind(this), false );
+			ig.system.canvas.style.msTouchAction = 'none';
+		}
 	},
 
 	
@@ -160,22 +169,17 @@ ig.Input = ig.Class.extend({
 	
 	
 	mousemove: function( event ) {		
-		var el = ig.system.canvas;
+		var internalWidth = parseInt(ig.system.canvas.offsetWidth) || ig.system.realWidth;
+		var scale = ig.system.scale * (internalWidth / ig.system.realWidth);
+		
 		var pos = {left: 0, top: 0};
-		while( el != null ) {
-			pos.left += el.offsetLeft;
-			pos.top += el.offsetTop;
-			el = el.offsetParent;
-		}
-		var tx = event.pageX;
-		var ty = event.pageY;
-		if( event.touches ) {
-			tx = event.touches[0].clientX;
-			ty = event.touches[0].clientY;
+		if( ig.system.canvas.getBoundingClientRect ) {
+			pos = ig.system.canvas.getBoundingClientRect();
 		}
 		
-		this.mouse.x = (tx - pos.left) / ig.system.scale;
-		this.mouse.y = (ty - pos.top) / ig.system.scale;
+		var ev = event.touches ? event.touches[0] : event;
+		this.mouse.x = (ev.clientX - pos.left) / scale;
+		this.mouse.y = (ev.clientY - pos.top) / scale;
 	},
 	
 	
@@ -188,7 +192,8 @@ ig.Input = ig.Class.extend({
 	
 	
 	keydown: function( event ) {
-		if( event.target.type == 'text' ) { return; }
+		var tag = event.target.tagName;
+		if( tag == 'INPUT' || tag == 'TEXTAREA' ) { return; }
 		
 		var code = event.type == 'keydown' 
 			? event.keyCode 
@@ -212,7 +217,8 @@ ig.Input = ig.Class.extend({
 	
 	
 	keyup: function( event ) {
-		if( event.target.type == 'text' ) { return; }
+		var tag = event.target.tagName;
+		if( tag == 'INPUT' || tag == 'TEXTAREA' ) { return; }
 		
 		var code = event.type == 'keyup' 
 			? event.keyCode 
@@ -243,13 +249,10 @@ ig.Input = ig.Class.extend({
 		var element = ig.$( selector );
 		
 		var that = this;
-		element.addEventListener('touchstart', function(ev) {
-			that.touchStart( ev, action );
-		}, false);
-		
-		element.addEventListener('touchend', function(ev) {
-			that.touchEnd( ev, action );
-		}, false);
+		element.addEventListener('touchstart', function(ev) {that.touchStart( ev, action );}, false);
+		element.addEventListener('touchend', function(ev) {that.touchEnd( ev, action );}, false);
+		element.addEventListener('MSPointerDown', function(ev) {that.touchStart( ev, action );}, false);
+		element.addEventListener('MSPointerUp', function(ev) {that.touchEnd( ev, action );}, false);
 	},
 	
 	

dev/lib/impact/sound.js

@@ -9,6 +9,12 @@ ig.SoundManager = ig.Class.extend({
 	format: null,
 	
 	init: function() {
+		// Quick sanity check if the Browser supports the Audio tag
+		if( !ig.Sound.enabled || !window.Audio ) {
+			ig.Sound.enabled = false;
+			return;
+		}
+		
 		// Probe sound formats and determine the file extension to load
 		var probe = new Audio();
 		for( var i = 0; i < ig.Sound.use.length; i++ ) {

dev/lib/impact/system.js

@@ -34,6 +34,13 @@ ig.System = ig.Class.extend({
 		this.context = this.canvas.getContext('2d');
 		
 		this.getDrawPos = ig.System.drawMode;
+
+		// Automatically switch to crisp scaling when using a scale
+		// other than 1
+		if( this.scale != 1 ) {
+			ig.System.scaleMode = ig.System.SCALE.CRISP;
+		}
+		ig.System.scaleMode( this.canvas, this.context );
 	},
 	
 	
@@ -108,7 +115,7 @@ ig.System = ig.Class.extend({
 	},
 	
 	
-	getDrawPos: null, // Set through constructor
+	getDrawPos: null // Set through constructor
 });
 
 ig.System.DRAW = {
@@ -118,4 +125,21 @@ ig.System.DRAW = {
 };
 ig.System.drawMode = ig.System.DRAW.SMOOTH;
 
+ig.System.SCALE = {
+	CRISP: function( canvas, context ) {
+		ig.setVendorAttribute( context, 'imageSmoothingEnabled', false );
+		canvas.style.imageRendering = '-moz-crisp-edges';
+		canvas.style.imageRendering = '-o-crisp-edges';
+		canvas.style.imageRendering = '-webkit-optimize-contrast';
+		canvas.style.imageRendering = 'crisp-edges';
+		canvas.style.msInterpolationMode = 'nearest-neighbor'; // No effect on Canvas :/
+	},
+	SMOOTH: function( canvas, context ) {
+		ig.setVendorAttribute( context, 'imageSmoothingEnabled', true );
+		canvas.style.imageRendering = '';
+		canvas.style.msInterpolationMode = '';
+	}
+};
+ig.System.scaleMode = ig.System.SCALE.SMOOTH;
+
 });

dev/lib/impact/timer.js

@@ -58,7 +58,7 @@ ig.Timer = ig.Class.extend({
 });
 
 ig.Timer._last = 0;
-ig.Timer.time = 0;
+ig.Timer.time = Number.MIN_VALUE;
 ig.Timer.timeScale = 1;
 ig.Timer.maxStep = 0.05;
 

dev/lib/weltmeister/config.js

@@ -44,8 +44,8 @@ wm.config = {
 	
 	'view': {
 		'zoom': 1,
-		'zoomMax': 1,
-		'zoomMin': 1,
+		'zoomMax': 4,
+		'zoomMin': 0.125,
 		'grid': false
 	},
 	

dev/lib/weltmeister/edit-entities.js

@@ -147,17 +147,33 @@ wm.EditEntities = ig.Class.extend({
 	selectEntityAt: function( x, y ) {
 		this.selector.pos = { x: x, y: y };
 		
+		// Find all possible selections
+		var possibleSelections = [];
 		for( var i = 0; i < this.entities.length; i++ ) {
-			var ent = this.entities[i];
-			if( ent.touches(this.selector) ) {
-				this.selector.offset = {x: (x - ent.pos.x + ent.offset.x), y: (y - ent.pos.y + ent.offset.y)};
+			if( this.entities[i].touches(this.selector) ) {
+				possibleSelections.push( this.entities[i] );
+			}
+		}
+		
+		// Nothing found? Early out.
+		if( !possibleSelections.length ) {
+			this.selectEntity( null );
+			return false;
+		}
+		
+		// Find the 'next' selection
+		var selectedIndex = possibleSelections.indexOf(this.selectedEntity);
+		var nextSelection = (selectedIndex + 1) % possibleSelections.length;
+		var ent = possibleSelections[nextSelection];
+		
+		// Select it!
+		this.selector.offset = {
+			x: (x - ent.pos.x + ent.offset.x),
+			y: (y - ent.pos.y + ent.offset.y)
+		};
 		this.selectEntity( ent );
 		this.wasSelectedOnScaleBorder = this.isOnScaleBorder( ent, this.selector );
 		return ent;
-			}
-		}
-		this.selectEntity( null );
-		return false;
 	},
 	
 	

dev/lib/weltmeister/entities.js

@@ -35,7 +35,9 @@ var req = $.ajax({
 		var moduleNames = [];
 		var modules = {};
 		for( var i = 0; i < files.length; i++ ) {
-			var name = files[i].replace(/^lib\/|\.js$/g,'').replace(/\//g, '.');
+			var name = files[i]
+				.replace(new RegExp("^"+ig.lib+"|\\.js$", "g"), '')
+				.replace(/\//g, '.');
 			moduleNames.push( name );
 			modules[name] = files[i];
 		}

dev/lib/weltmeister/evented-input.js

@@ -15,7 +15,8 @@ wm.EventedInput = ig.Input.extend({
 	
 	
 	keydown: function( event ) {
-		if( event.target.type == 'text' ) { return; }
+		var tag = event.target.tagName;
+		if( tag == 'INPUT' || tag == 'TEXTAREA' ) { return; }
 		
 		var code = event.type == 'keydown' 
 			? event.keyCode 
@@ -35,7 +36,9 @@ wm.EventedInput = ig.Input.extend({
 	
 	
 	keyup: function( event ) {
-		if( event.target.type == 'text' ) { return; }
+		var tag = event.target.tagName;
+		if( tag == 'INPUT' || tag == 'TEXTAREA' ) { return; }
+		
 		var code = event.type == 'keyup' 
 			? event.keyCode 
 			: (event.button == 2 ? ig.KEY.MOUSE2 : ig.KEY.MOUSE1);

dev/lib/weltmeister/weltmeister.js

@@ -114,6 +114,11 @@ wm.Weltmeister = ig.Class.extend({
 			$('input#toggleSidebar').toggleClass('active');
 		});
 		
+		// Always unfocus current input field when clicking the canvas
+		$('#canvas').mousedown(function(){
+			$('input:focus').blur();
+		});
+		
 		
 		this.undo = new wm.Undo( wm.config.undoLevels );
 		

dev/tools/bake.bat

@@ -8,14 +8,16 @@ SET GAME=lib/game/main.js
 SET OUTPUT_FILE=game.min.js
 
 
-:: Change CWD to Impact's base dir and bake!
+:: Change CWD to Impact's base dir
 cd ../
-php tools/bake.php %IMPACT_LIBRARY% %GAME% %OUTPUT_FILE%
 
 
+:: Bake!
+php tools/bake.php %IMPACT_LIBRARY% %GAME% %OUTPUT_FILE%
+
 :: If you dont have the php.exe in your PATH uncomment the
 :: following line and point it to your php.exe
 
-::c:/php/php.exe bake.php %IMPACT_LIBRARY% %GAME% %OUTPUT_FILE%
+::c:/php/php.exe tools/bake.php %IMPACT_LIBRARY% %GAME% %OUTPUT_FILE%
 
 pause