datenspuren: rm derbug.js

content/static/datenspuren/2013/script/derbug.js

@@ -1,128 +0,0 @@
-var MOUSE_TIMEOUT = 1000;
-var mouseTimeout;
-
-$('body').mousemove(function() {
-    hideAll();
-
-    if (mouseTimeout)
-	clearTimeout(mouseTimeout);
-    mouseTimeout = setTimeout(onMouseTimeout, MOUSE_TIMEOUT);
-});
-
-function onMouseTimeout() {
-    canSpawn();
-}
-
-
-var MAX_BUGS = 5;
-var bugs = [];
-var SPAWN_INTERVAL = 2000;
-var spawnInterval;
-function canSpawn() {
-    if (!spawnInterval)
-	spawnInterval = setInterval(spawn, SPAWN_INTERVAL);
-}
-
-function spawn() {
-    bugs = bugs.filter(function(bug) {
-	return !bug.shouldHide;
-    });
-    /*console.log("spawn", bugs.length, "/", MAX_BUGS);*/
-    if (bugs.length >= MAX_BUGS)
-	return;
-
-    bugs.push(new Bug());
-}
-
-function hideAll() {
-    if (spawnInterval) {
-	clearInterval(spawnInterval);
-	spawnInterval = null;
-	hideAll();
-    }
-
-    for(var i = 0; i < bugs.length; i++) {
-	bugs[i].shouldHide = true;
-    }
-    bugs = [];
-}
-
-function Bug() {
-    this.alpha = 0;
-    this.rotation = 0;
-    this.x = $('body').scrollLeft() + Math.floor(window.innerWidth * Math.random());
-    this.y = $('body').scrollTop() + Math.floor(window.innerHeight * Math.random());
-    this.selectTarget();
-
-    this.el = $('<img src="images/derbug.png">');
-    this.el.css({ position: 'absolute',
-		  width: "28px",
-		  height: "28px"
-		});
-    $('body').append(this.el);
-    /*console.log("new bug", this, this.x, this.y);*/
-
-    this.think();
-}
-Bug.prototype = {
-    update: function() {
-	this.el.css({ left: Math.floor(this.x) + "px",
-		      top: Math.floor(this.y) + "px",
-		      opacity: this.alpha,
-		      transform: "rotate(" + this.rotation + "rad)",
-		      '-webkitTransform': "rotate(" + this.rotation + "rad)",
-		      '-mozTransform': "rotate(" + this.rotation + "rad)"
-		    });
-    },
-    selectTarget: function() {
-	this.targetRotation = 2 * Math.PI * (Math.random() - 0.5);
-	this.targetSteps = 5 + Math.ceil(10 * Math.random());
-    },
-    think: function() {
-	if (this.shouldHide && this.alpha > 0) {
-	    /* fading out */
-	    this.alpha -= 0.1;
-	} else if (this.shouldHide) {
-	    this.el.remove();
-	    /* destroy
-	     * HACK: Avoid nextTick() */
-	    return;
-	} else if (this.alpha < 1) {
-	    /* fading in */
-	    this.alpha += 0.1;
-	}
-
-	var dr = this.targetRotation - this.rotation;
-	if (Math.abs(dr) > 1) {
-	    this.rotation += Math.random() * dr / 10;
-	}
-	if (this.targetSteps > 0) {
-	    this.targetSteps--;
-	    this.x += Math.sin(this.rotation);
-	    this.y -= Math.cos(this.rotation);
-
-	    /* Emergency suicide: */
-	    if (this.x < 16 ||
-		this.x > $('body').innerWidth() - 16 ||
-		this.y < 16 ||
-		this.y > $('body').innerHeight() - 16) {
-		this.shouldHide = true;
-	    }
-	} else {
-	    this.selectTarget();
-	}
-
-	this.update();
-	nextTick(this.think.bind(this));
-    }
-};
-
-var nextTick =
-    window.requestAnimationFrame ||
-    window.webkitRequestAnimationFrame ||
-    window.mozRequestAnimationFrame ||
-    window.msRequestAnimationFrame ||
-    window.oRequestAnimationFrame ||
-    function(f) {
-	window.setTimeout(f, 40);
-    };

xsl/datenspuren/xhtml5.xsl

@@ -258,9 +258,6 @@
       <script type="application/javascript" src="script/play-resources.js" defer="defer">
 	<xsl:text> </xsl:text>
       </script>
-      <script type="application/javascript" src="script/derbug.js" defer="defer">
-	<xsl:text> </xsl:text>
-      </script>
     </head>
   </xsl:template>