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js/index.js

@@ -0,0 +1,47 @@
+window.addEventListener('load', eventWindowLoaded, false);
+
+function eventWindowLoaded () {
+  canvasApp(); 
+}
+function canvasSupport (e) {
+  
+	  return !!e.getContext;
+
+}
+function canvasApp () {
+  var canvas = document.getElementById('myCanvas');
+
+  if (!canvasSupport(myCanvas)) {
+	  return; 
+	}
+  
+  var ctx = canvas.getContext('2d');
+  var w = canvas.width = window.innerWidth;
+	var h = canvas.height = window.innerHeight;
+	var yPositions = Array(300).join(0).split('');
+  
+  function runMatrix() {
+	  if (typeof Game_Interval != 'undefined') clearInterval(Game_interval);
+		Game_Interval = setInterval(drawScreen, 33);
+	}
+
+  function drawScreen () {
+    ctx.fillStyle = 'rgba(0,0,0,.05)';
+		ctx.fillRect(0, 0, w, h);
+		ctx.fillStyle = '#0f0';
+		ctx.font = '10px Nasalization';
+		yPositions.map(function(y, index){
+		  text = String.fromCharCode(1e2 + Math.random() * 33);
+			x = (index * 10) + 10;
+			ctx.fillText(text, x, y);
+			if (y > 100 + Math.random() * 1e4) {
+			  yPositions[index] = 0;
+			} else {
+			  yPositions[index] = y + 10;
+			}
+		})
+  }
+  
+  runMatrix();
+ 
+}