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| 1 | +<!doctype html> |
| 2 | +<html> |
| 3 | + <head> |
| 4 | + <meta charset="utf-8"> |
| 5 | + <title>Bobbing 1</title> |
| 6 | + <link rel="stylesheet" href="../include/style.css"> |
| 7 | + <style type="text/css"> |
| 8 | + #canvas { |
| 9 | + background: #fff; |
| 10 | + } |
| 11 | + </style> |
| 12 | + </head> |
| 13 | + <body> |
| 14 | + <header> |
| 15 | + Example from <a href="http://amzn.com/1430236655?tag=html5anim-20"><em>Foundation HTML5 Animation with JavaScript</em></a> |
| 16 | + </header> |
| 17 | + <canvas id="canvas" width="640" height="340"></canvas> |
| 18 | + |
| 19 | + <script type="module"> |
| 20 | + import {captureMouse, rectContainsPoint} from '../include/utils.js' |
| 21 | + import Ball from './classes/ball.js' |
| 22 | + import Box from './classes/box.js' |
| 23 | + |
| 24 | + window.onload = function () { |
| 25 | + const canvas = document.getElementById('canvas'), |
| 26 | + context = canvas.getContext('2d'), |
| 27 | + {width, height} = canvas, |
| 28 | + mouse = captureMouse(canvas); |
| 29 | + |
| 30 | + let centerBall = new Ball(), |
| 31 | + centerBox = new Box(80, 80, 'transparent'); |
| 32 | + |
| 33 | + centerBall.x = width / 2; |
| 34 | + centerBall.y = height / 2; |
| 35 | + centerBox.x = centerBall.x - 40; |
| 36 | + centerBox.y = centerBall.y - 40; |
| 37 | + |
| 38 | + let mouseBall = new Ball(), |
| 39 | + mouseBox = new Box(80, 80, 'transparent'); |
| 40 | + |
| 41 | + (function draw(){ |
| 42 | + window.requestAnimationFrame(draw); |
| 43 | + context.clearRect(0, 0, width, height); |
| 44 | + |
| 45 | + mouseBall.x = mouse.x; |
| 46 | + mouseBall.y = mouse.y; |
| 47 | + mouseBox.x = mouse.x - 40; |
| 48 | + mouseBox.y = mouse.y - 40; |
| 49 | + |
| 50 | + if (rectContainsPoint(centerBox, mouseBox)) { |
| 51 | + console.log('hit!') |
| 52 | + } else { |
| 53 | + console.log('not hit!') |
| 54 | + } |
| 55 | + |
| 56 | + centerBall.draw(context); |
| 57 | + centerBox.draw(context); |
| 58 | + mouseBall.draw(context); |
| 59 | + mouseBox.draw(context); |
| 60 | + }()) |
| 61 | + } |
| 62 | + </script> |
| 63 | + </body> |
| 64 | +</html> |
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