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render ears and use chance

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This commit is contained in:
Jeffrey Sun 2016-12-15 14:21:30 -08:00
parent 4a64a2f57f
commit 4448a59dd0
3 changed files with 49 additions and 12 deletions
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39
server.js
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@ -38,12 +38,45 @@ var renderFox = function (canvas, opts) {
var width = opts.canvas.width;
var height = opts.canvas.height;
var ctx = canvas.getContext('2d');
ctx.beginPath();
drawEllipseByCenter(ctx, width/2, height/2, opts.head.width, opts.head.height);
// draw head
renderHead(ctx, opts.head);
// draw ears
renderEars(ctx, opts.ears);
// draw cheeks
// draw eyes
// draw nose
// draw mouth
};
function renderHead(ctx, opts) {
ctx.save();
ctx.translate(ctx.canvas.width/2, ctx.canvas.height/2);
ctx.rotate(Math.PI / 4);
drawEllipseByCenter(ctx, 0, 0, opts.width, opts.height);
ctx.restore();
}
function renderEars(ctx, opts) {
var offset = {
x: ctx.canvas.width/2,
y: ctx.canvas.height/2
}
ctx.save();
ctx.translate(offset.x, offset.y);
ctx.rotate(-opts.left.angle);
drawEllipseByCenter(ctx, opts.left.x - offset.x, opts.left.y - offset.y, opts.left.width, opts.left.height);
ctx.restore();
ctx.save();
ctx.translate(offset.x, offset.y);
ctx.rotate(-opts.right.angle);
drawEllipseByCenter(ctx, opts.right.x - offset.x, opts.right.y - offset.y, opts.right.width, opts.right.height);
ctx.restore();
}
function drawEllipseByCenter(ctx, cx, cy, w, h) {
console.log("ellipse coords", cx, cy, w, h);
drawEllipse(ctx, cx - w/2.0, cy - h/2.0, w, h);
}
@ -102,7 +135,7 @@ app.get('/', function(req, res) {
var canvas = new Canvas(width, height);
var ctx = canvas.getContext('2d');
var fox = Fox(width, height);
console.log(fox);
console.log("fox", fox);
renderFox(canvas, fox);
var img = new Buffer(canvas.toDataURL(), 'base64');
var fileName = "fox" + Math.floor(Math.random() * 10000) + ".png";