just another inlet to tributary

config.json

{"editor_editor":{"coffee":false,"vim":false,"emacs":false,"width":600,"height":300,"hide":false}}

inlet.js

var speed = 5;
var x = 250;


function circle(ctx, y){
  ctx.fillStyle = "rgba( 255, 255, 255,"+ 0.22+")";
  ctx.beginPath();
  ctx.arc(tributary.sw/2,(tributary.sh/2)+y[0],51,0,Math.PI*2, true);
  ctx.closePath();
  ctx.fill();
}

tributary.init = function(ctx) {
};
tributary.run = function(ctx,t) {

  ctx.fillStyle = "#911B1B";
  ctx.fillRect(0,0,tributary.sw, tributary.sh);  	
  ctx.strokeStyle = "#B9A4A4";
  ctx.strokeRect (1,1,tributary.sw-2,tributary.sh-2); 
  console.log(t);
    var tt = Math.cos(t)/2;
    
    var p;    
  	p = [tt*100, tt]; 
    circle(ctx,p);
//    tributary.clear(); //helper function to clear the canvas 
};