pt/docs/start.html at master · jacobmbr/pt · GitHub

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<!DOCTYPE html>
<html>
<head>
    <title>Pt - getting started</title>
    <script type="text/javascript" src="../dist/pt.min.js"></script>

</head>
<body>

    <div id="pt" style="width: 500px; height: 500px;"></div>

    <script type="text/javascript">

        (function() {

            var space = new CanvasSpace( "hello", "#f1f1f1" ).display( "#pt" );
            var form = new Form( space );

            var dot = new Circle( 250, 250 ).setRadius( 50 );
            var another = new Circle( 100, 100 ).setRadius( 50 );

            var bot = {
                animate: function ( time, fs, context ) {
                    form.fill( "#999" ).text( new Point( 20, 20 ), "frame rate is " + (1000 / fs) );

                    form.fill( "#5AF" ).stroke( false );
                    dot.setRadius( Math.abs( 500 - time % 1000 ) / 50 + 50 );
                    form.circle( dot );

                    form.fill( false ).stroke( "#fc0", 5 );
                    form.circle( another );

                    var hits = another.intersectCircle( dot );

                    if (hits.length > 0) {
                        form.stroke( "#fff" ).fill( "#0C9" );
                        form.line( new Line( hits[0] ).to( hits[1] ) );
                        form.points( hits, 5, true );
                    }
                },

                onMouseAction: function ( type, x, y, evt ) {
                    if (type == "move") {
                        another.set( x, y )
                    }
                }
            };

            space.add( bot );
            space.bindMouse();
            space.play();

        })();
    </script>


</body>
</html>