Created
January 3, 2018 16:15
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JS Bin // source https://jsbin.com/waqaqep
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<meta name="viewport" content="width=device-width"> | |
<title>JS Bin</title> | |
</head> | |
<body> | |
<canvas id="mycanvas"></canvas> | |
<script id="jsbin-javascript"> | |
var width = 400, height = 300; | |
var canvas = document.getElementById("mycanvas") | |
canvas.width = width*2; | |
canvas.height = height*2; | |
var ctx = canvas.getContext("2d") | |
var x = 0; | |
var gameLoop = setInterval(() => { | |
if(x <= width) { | |
update(x) | |
} | |
x++ | |
}) | |
setTimeout(() => { | |
clearInterval(gameLoop) | |
}, 10000) | |
// for(var x = 0; x < width; x++) { | |
// update(x) | |
// } | |
function update(x) { | |
var t = map(x, 0, width, 0, 1); | |
var my = EasingFunctions().easeInOutCubic(t) | |
var y = map(my, 0, 1, 0, height) | |
//console.log(x, y) | |
ctx.clearRect(0, 0, canvas.width, canvas.height); | |
ctx.fillRect(x, y, 10, 10); | |
} | |
//from: https://stackoverflow.com/a/20910430/1481716 | |
function map(value, start1, stop1, start2, stop2) { | |
return start2 + (stop2 - start2) * ((value - start1) / (stop1 - start1)); | |
} | |
//from: https://gist.github.com/gre/1650294 | |
function EasingFunctions() { | |
return { | |
// no easing, no acceleration | |
linear: function (t) { return t; }, | |
// accelerating from zero velocity | |
easeInQuad: function (t) { return t*t; }, | |
// decelerating to zero velocity | |
easeOutQuad: function (t) { return t*(2-t); }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuad: function (t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t; }, | |
// accelerating from zero velocity | |
easeInCubic: function (t) { return t*t*t; }, | |
// decelerating to zero velocity | |
easeOutCubic: function (t) { return (--t)*t*t+1; }, | |
// acceleration until halfway, then deceleration | |
easeInOutCubic: function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1; }, | |
// accelerating from zero velocity | |
easeInQuart: function (t) { return t*t*t*t; }, | |
// decelerating to zero velocity | |
easeOutQuart: function (t) { return 1-(--t)*t*t*t; }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuart: function (t) { return t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t; }, | |
// accelerating from zero velocity | |
easeInQuint: function (t) { return t*t*t*t*t; }, | |
// decelerating to zero velocity | |
easeOutQuint: function (t) { return 1+(--t)*t*t*t*t; }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuint: function (t) { return t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t; } | |
} | |
} | |
</script> | |
<script id="jsbin-source-javascript" type="text/javascript">var width = 400, height = 300; | |
var canvas = document.getElementById("mycanvas") | |
canvas.width = width*2; | |
canvas.height = height*2; | |
var ctx = canvas.getContext("2d") | |
var x = 0; | |
var gameLoop = setInterval(() => { | |
if(x <= width) { | |
update(x) | |
} | |
x++ | |
}) | |
setTimeout(() => { | |
clearInterval(gameLoop) | |
}, 10000) | |
// for(var x = 0; x < width; x++) { | |
// update(x) | |
// } | |
function update(x) { | |
var t = map(x, 0, width, 0, 1); | |
var my = EasingFunctions().easeInOutCubic(t) | |
var y = map(my, 0, 1, 0, height) | |
//console.log(x, y) | |
ctx.clearRect(0, 0, canvas.width, canvas.height); | |
ctx.fillRect(x, y, 10, 10); | |
} | |
//from: https://stackoverflow.com/a/20910430/1481716 | |
function map(value, start1, stop1, start2, stop2) { | |
return start2 + (stop2 - start2) * ((value - start1) / (stop1 - start1)); | |
} | |
//from: https://gist.github.com/gre/1650294 | |
function EasingFunctions() { | |
return { | |
// no easing, no acceleration | |
linear: function (t) { return t; }, | |
// accelerating from zero velocity | |
easeInQuad: function (t) { return t*t; }, | |
// decelerating to zero velocity | |
easeOutQuad: function (t) { return t*(2-t); }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuad: function (t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t; }, | |
// accelerating from zero velocity | |
easeInCubic: function (t) { return t*t*t; }, | |
// decelerating to zero velocity | |
easeOutCubic: function (t) { return (--t)*t*t+1; }, | |
// acceleration until halfway, then deceleration | |
easeInOutCubic: function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1; }, | |
// accelerating from zero velocity | |
easeInQuart: function (t) { return t*t*t*t; }, | |
// decelerating to zero velocity | |
easeOutQuart: function (t) { return 1-(--t)*t*t*t; }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuart: function (t) { return t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t; }, | |
// accelerating from zero velocity | |
easeInQuint: function (t) { return t*t*t*t*t; }, | |
// decelerating to zero velocity | |
easeOutQuint: function (t) { return 1+(--t)*t*t*t*t; }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuint: function (t) { return t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t; } | |
} | |
}</script></body> | |
</html> |
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var width = 400, height = 300; | |
var canvas = document.getElementById("mycanvas") | |
canvas.width = width*2; | |
canvas.height = height*2; | |
var ctx = canvas.getContext("2d") | |
var x = 0; | |
var gameLoop = setInterval(() => { | |
if(x <= width) { | |
update(x) | |
} | |
x++ | |
}) | |
setTimeout(() => { | |
clearInterval(gameLoop) | |
}, 10000) | |
// for(var x = 0; x < width; x++) { | |
// update(x) | |
// } | |
function update(x) { | |
var t = map(x, 0, width, 0, 1); | |
var my = EasingFunctions().easeInOutCubic(t) | |
var y = map(my, 0, 1, 0, height) | |
//console.log(x, y) | |
ctx.clearRect(0, 0, canvas.width, canvas.height); | |
ctx.fillRect(x, y, 10, 10); | |
} | |
//from: https://stackoverflow.com/a/20910430/1481716 | |
function map(value, start1, stop1, start2, stop2) { | |
return start2 + (stop2 - start2) * ((value - start1) / (stop1 - start1)); | |
} | |
//from: https://gist.github.com/gre/1650294 | |
function EasingFunctions() { | |
return { | |
// no easing, no acceleration | |
linear: function (t) { return t; }, | |
// accelerating from zero velocity | |
easeInQuad: function (t) { return t*t; }, | |
// decelerating to zero velocity | |
easeOutQuad: function (t) { return t*(2-t); }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuad: function (t) { return t<.5 ? 2*t*t : -1+(4-2*t)*t; }, | |
// accelerating from zero velocity | |
easeInCubic: function (t) { return t*t*t; }, | |
// decelerating to zero velocity | |
easeOutCubic: function (t) { return (--t)*t*t+1; }, | |
// acceleration until halfway, then deceleration | |
easeInOutCubic: function (t) { return t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1; }, | |
// accelerating from zero velocity | |
easeInQuart: function (t) { return t*t*t*t; }, | |
// decelerating to zero velocity | |
easeOutQuart: function (t) { return 1-(--t)*t*t*t; }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuart: function (t) { return t<.5 ? 8*t*t*t*t : 1-8*(--t)*t*t*t; }, | |
// accelerating from zero velocity | |
easeInQuint: function (t) { return t*t*t*t*t; }, | |
// decelerating to zero velocity | |
easeOutQuint: function (t) { return 1+(--t)*t*t*t*t; }, | |
// acceleration until halfway, then deceleration | |
easeInOutQuint: function (t) { return t<.5 ? 16*t*t*t*t*t : 1+16*(--t)*t*t*t*t; } | |
} | |
} |
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