Astro Classes

2015-08-14 21:06:23 +08:00
parent d3f924adf3
commit 0a25f87965
157 changed files with 11676 additions and 2 deletions
--- a/botanjs/src/Astro/Mechanism/CharacterCloud.js
+++ b/botanjs/src/Astro/Mechanism/CharacterCloud.js
@@ -0,0 +1,77 @@
+(function(){
+	var ns = __namespace( "Astro.Mechanism.CharacterCloud" );
+
+	/** @type {Dandelion} */
+	var Dand = __import( "Dandelion" );
+
+	var CharacterCloud = {};
+
+	// Character cloud creates a cloud of character with randomized properties
+	var create = function( ch, char_class, size, cloudRange, charSize )
+	{
+		var cloudMap = Dand.wrapc( "characterCloud" )
+			, charElmt
+			, rx, ry, rs
+			, cs = charSize || 15
+			, l_l = cloudRange.lowerLimit
+			// vertical range
+			, vr = cloudRange.upperLimit - l_l
+			, lf_l = cloudRange.leftLimit
+			// horizontal range
+			, hr = cloudRange.rightLimit
+
+			, charStack = ( ch instanceof Array );
+		;
+
+
+		// The loop is CPU intensive
+		// we need to focus on reducing the CPU usage
+		if( charStack )
+		{
+			var l = ch.length;
+			for(var i = 0; i < size; i ++)
+			{
+				rx = String( lf_l + Math.random()*hr ) + "%";
+				ry = String( l_l + Math.random()*vr ) + "%";
+				rs = Math.random()*cs;
+				charElmt = Dand.wrap('span', null, char_class, ch[Math.floor(Math.random()*l)]);
+
+				var cE_style = charElmt.style;
+
+				cE_style.position = "absolute";
+				cE_style.left = rx;
+				cE_style.top = ry;
+				// cE_style.opacity = Math.random() + "";
+				cE_style.fontSize = rs + "em";
+				cE_style.marginTop = marginLeft = String( -0.5*rs ) + "em";
+
+				cloudMap.appendChild(charElmt);
+			}
+		}
+		else
+		{
+			for(var i = 0; i < size; i ++)
+			{
+				rx = String(lf_l + Math.random()*hr) + "%";
+				ry = String(l_l + Math.random()*vr) + "%";
+				rs = Math.random()*15;
+				charElmt = Dand.wrap('span', null, char_class, ch);
+
+				var cE_style = charElmt.style;
+
+				cE_style.position = "absolute";
+				cE_style.left = rx;
+				cE_style.top = ry;
+				// cE_style.opacity = String(Math.random());
+				cE_style.fontSize = String(rs) + "em";
+				cE_style.marginTop = marginLeft = String( -0.5*rs ) + "em";
+
+				cloudMap.appendChild( charElmt );
+			}
+		}
+		
+		return cloudMap;
+	};
+
+	ns[ NS_EXPORT ]( EX_FUNC, "create", create );
+})();