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fixed polygon function

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Michael Yang 2014-05-17 11:55:58 -04:00
parent 23f3331311
commit f8cf88beaf
2 changed files with 18 additions and 11 deletions
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2
index.html
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@ -7,8 +7,8 @@
<center>
<canvas id="canvas" style='border: 1px black solid;' width='1000' height='1000'></canvas>
</center>
<script src="math.js"></script>
<script src="entities.js"></script>
<script src="main.js"></script>
<script src="math.js"></script>
</body>
</html>

27
main.js
View file

@ -5,7 +5,7 @@ window.requestAnimFrame = (function(){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
function( callback ){
function( callback ) {
window.setTimeout(callback, 1000 / 60);
};
})();
@ -18,24 +18,31 @@ window.requestAnimFrame = (function(){
Render();
function drawClock(x, y, sides, sideLength, theta) {
function drawPolygon(x, y, sides, radius, theta) {
ctx.beginPath();
ctx.moveTo(0, sideLength);
ctx.moveTo(x, y + radius);
var oldX = 0;
var oldY = radius;
for (var i = 0; i < sides; i++) {
var coords = rotatePoint(x, y, 60);
ctx.lineTo(coords.x, coords.y);
ctx.moveTo(coords.x, coords.y);
var coords = rotatePoint(oldX, oldY, 360 / sides);
ctx.lineTo(coords.x + x, coords.y + y);
ctx.moveTo(coords.x + x, coords.y + y);
oldX = coords.x;
oldY = coords.y;
// console.log(coords);
}
ctx.closePath();
ctx.fill();
ctx.stroke();
}
function Render() {
ctx.clearRect(0, 0, canvas.width, canvas.height);
blocks.forEach(function(o){
o.draw();
});
// blocks.forEach(function(o){
// o.draw();
// });
drawPolygon(100, 100, 6, 100, 0);
requestAnimFrame(Render);
}
// function Block(lane, color, time) {