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Update to es2015 canst's in the Fox class and renderer.

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This commit is contained in:
lucaswadedavis 2016-12-22 11:40:48 -08:00
parent 478ed6b5f7
commit 7e175341fe
2 changed files with 34 additions and 35 deletions
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31
js/render-fox.js
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@ -1,7 +1,7 @@
var renderFox = function (canvas, opts) {
var width = opts.canvas.width;
var height = opts.canvas.height;
var ctx = canvas.getContext('2d');
const renderFox = function (canvas, opts) {
const width = opts.canvas.width;
const height = opts.canvas.height;
const ctx = canvas.getContext('2d');
ctx.fillStyle = opts.canvas.color;
ctx.fillRect(0, 0, width, height);
@ -15,8 +15,8 @@ var renderFox = function (canvas, opts) {
};
function shift_canvas(ctx, w, h, dx, dy) {
var topImage = ctx.getImageData(0, 0, w, h);
var bottomImage = ctx.getImageData(0, h - dy, w, h);
const topImage = ctx.getImageData(0, 0, w, h);
const bottomImage = ctx.getImageData(0, h - dy, w, h);
ctx.clearRect(0, 0, w, h);
ctx.putImageData(bottomImage, 0, 0);
@ -34,7 +34,7 @@ function renderHead(ctx, opts) {
}
function renderEars(ctx, opts) {
var offset = {
const offset = {
x: ctx.canvas.width/2,
y: ctx.canvas.height/2
}
@ -123,14 +123,13 @@ function drawEllipseByCenter(ctx, cx, cy, w, h, color, fillColor, kappa) {
drawEllipse(ctx, cx - w/2.0, cy - h/2.0, w, h, color, fillColor, kappa);
}
function drawEllipse(ctx, x, y, w, h, color, fillColor, kappa) {
var kappa = kappa || 0.3,
ox = (w / 2) * kappa, // control point offset horizontal
oy = (h / 2) * kappa, // control point offset vertical
xe = x + w, // x-end
ye = y + h, // y-end
xm = x + w / 2, // x-middle
ym = y + h / 2; // y-middle
function drawEllipse(ctx, x, y, w, h, color, fillColor, kappa=0.3) {
const ox = (w / 2) * kappa; // control point offset horizontal
const oy = (h / 2) * kappa; // control point offset vertical
const xe = x + w; // x-end
const ye = y + h; // y-end
const xm = x + w / 2; // x-middle
const ym = y + h / 2; // y-middle
if (color) {
ctx.strokeStyle = color;
@ -141,7 +140,7 @@ function drawEllipse(ctx, x, y, w, h, color, fillColor, kappa) {
ctx.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
ctx.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
ctx.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
var fillColor = fillColor || color;
fillColor = fillColor || color;
if (fillColor) {
ctx.fillStyle = fillColor;
ctx.fill();