Ball follows mouse with delay canvas
0
So I am kinda beginner here and decided to try and learn working with canvas a little bit. I followed some tutorials and managed to make a 'ball' to follow my mouse. And it works. However there is a delay. When i move my mouse the 'balls' follows my mouse but with delay. It is always late a little bit. So my question is... Is this is how it is supposed to be (that how canvas work and there is no way around it)m or I am doing something wrong.
Here is my javascript code:
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function (event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();
My HTML:
<body>
<canvas></canvas>
<script src="javascript.js"></script>
</body>
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>Any help would be greatly appreciated.
P.S. Updated as requested. This is my entire code.
javascript html5-canvas
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
add a comment |
0
So I am kinda beginner here and decided to try and learn working with canvas a little bit. I followed some tutorials and managed to make a 'ball' to follow my mouse. And it works. However there is a delay. When i move my mouse the 'balls' follows my mouse but with delay. It is always late a little bit. So my question is... Is this is how it is supposed to be (that how canvas work and there is no way around it)m or I am doing something wrong.
Here is my javascript code:
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function (event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();
My HTML:
<body>
<canvas></canvas>
<script src="javascript.js"></script>
</body>
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>Any help would be greatly appreciated.
P.S. Updated as requested. This is my entire code.
javascript html5-canvas
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
Please post a complete, working example that demonstrates the problem.
– ggorlen
Nov 23 '18 at 4:19
1
Have you see this answer?
– Starfight
Nov 23 '18 at 10:44
1
Displaying the mouse position will always be one frame behind, there is nothing you can do to change that. You can however hide the mouseelement.style.cursor = "none"when you drag an object and that removes the perceptual appearance of the delay.
– Blindman67
Nov 23 '18 at 11:05
Ok my man, thanks for the response.
– Happy Coconut
Nov 23 '18 at 11:11
add a comment |
0
0
0
So I am kinda beginner here and decided to try and learn working with canvas a little bit. I followed some tutorials and managed to make a 'ball' to follow my mouse. And it works. However there is a delay. When i move my mouse the 'balls' follows my mouse but with delay. It is always late a little bit. So my question is... Is this is how it is supposed to be (that how canvas work and there is no way around it)m or I am doing something wrong.
Here is my javascript code:
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function (event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();
My HTML:
<body>
<canvas></canvas>
<script src="javascript.js"></script>
</body>
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>Any help would be greatly appreciated.
P.S. Updated as requested. This is my entire code.
javascript html5-canvas
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
So I am kinda beginner here and decided to try and learn working with canvas a little bit. I followed some tutorials and managed to make a 'ball' to follow my mouse. And it works. However there is a delay. When i move my mouse the 'balls' follows my mouse but with delay. It is always late a little bit. So my question is... Is this is how it is supposed to be (that how canvas work and there is no way around it)m or I am doing something wrong.
Here is my javascript code:
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function (event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();
My HTML:
<body>
<canvas></canvas>
<script src="javascript.js"></script>
</body>
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>Any help would be greatly appreciated.
P.S. Updated as requested. This is my entire code.
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.width = innerWidth;
canvas.height = innerHeight;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>javascript html5-canvas
javascript html5-canvas
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
edited Nov 23 '18 at 4:47
Tamil Selvan C
14.5k93659
14.5k93659
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
asked Nov 23 '18 at 4:15
Happy CoconutHappy Coconut
2391416
2391416
Please post a complete, working example that demonstrates the problem.
– ggorlen
Nov 23 '18 at 4:19
1
Have you see this answer?
– Starfight
Nov 23 '18 at 10:44
1
Displaying the mouse position will always be one frame behind, there is nothing you can do to change that. You can however hide the mouseelement.style.cursor = "none"when you drag an object and that removes the perceptual appearance of the delay.
– Blindman67
Nov 23 '18 at 11:05
Ok my man, thanks for the response.
– Happy Coconut
Nov 23 '18 at 11:11
add a comment |
Please post a complete, working example that demonstrates the problem.
– ggorlen
Nov 23 '18 at 4:19
1
Have you see this answer?
– Starfight
Nov 23 '18 at 10:44
1
Displaying the mouse position will always be one frame behind, there is nothing you can do to change that. You can however hide the mouseelement.style.cursor = "none"when you drag an object and that removes the perceptual appearance of the delay.
– Blindman67
Nov 23 '18 at 11:05
Ok my man, thanks for the response.
– Happy Coconut
Nov 23 '18 at 11:11
Please post a complete, working example that demonstrates the problem.
– ggorlen
Nov 23 '18 at 4:19
Please post a complete, working example that demonstrates the problem.
– ggorlen
Nov 23 '18 at 4:19
1
1
Have you see this answer?
– Starfight
Nov 23 '18 at 10:44
Have you see this answer?
– Starfight
Nov 23 '18 at 10:44
1
1
Displaying the mouse position will always be one frame behind, there is nothing you can do to change that. You can however hide the mouse
element.style.cursor = "none" when you drag an object and that removes the perceptual appearance of the delay.– Blindman67
Nov 23 '18 at 11:05
Displaying the mouse position will always be one frame behind, there is nothing you can do to change that. You can however hide the mouse
element.style.cursor = "none" when you drag an object and that removes the perceptual appearance of the delay.– Blindman67
Nov 23 '18 at 11:05
Ok my man, thanks for the response.
– Happy Coconut
Nov 23 '18 at 11:11
Ok my man, thanks for the response.
– Happy Coconut
Nov 23 '18 at 11:11
add a comment |
1 Answer
1
active
oldest
votes
1
The best you can do is remove the perceptual delay, which is only apparent because you have the mouse and the moving object visible at the same time. The delay is very small and without the cursor people just don't notice.
The example just hides the mouse when it is over the canvas.
Note that you should only hide the cursor is you have something else to represent the mouse position.
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
The best you can do is remove the perceptual delay, which is only apparent because you have the mouse and the moving object visible at the same time. The delay is very small and without the cursor people just don't notice.
The example just hides the mouse when it is over the canvas.
Note that you should only hide the cursor is you have something else to represent the mouse position.
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
add a comment |
1
The best you can do is remove the perceptual delay, which is only apparent because you have the mouse and the moving object visible at the same time. The delay is very small and without the cursor people just don't notice.
The example just hides the mouse when it is over the canvas.
Note that you should only hide the cursor is you have something else to represent the mouse position.
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
add a comment |
1
1
1
The best you can do is remove the perceptual delay, which is only apparent because you have the mouse and the moving object visible at the same time. The delay is very small and without the cursor people just don't notice.
The example just hides the mouse when it is over the canvas.
Note that you should only hide the cursor is you have something else to represent the mouse position.
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
The best you can do is remove the perceptual delay, which is only apparent because you have the mouse and the moving object visible at the same time. The delay is very small and without the cursor people just don't notice.
The example just hides the mouse when it is over the canvas.
Note that you should only hide the cursor is you have something else to represent the mouse position.
let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>let canvas = document.querySelector('canvas');
let c = canvas.getContext('2d');
canvas.style.cursor = "none";
canvas.width = innerWidth-40;
canvas.height = innerHeight-40;
let mouse = {
x: innerWidth / 2,
y: innerHeight / 2
};
addEventListener('mousemove', function(event) {
mouse.x = event.clientX;
mouse.y = event.clientY;
})
function Ball(x, y, radius, color) {
this.x = x;
this.y = y;
this.radius = radius;
this.color = color;
this.update = function() {
// eventualy some other code here...
this.draw();
};
this.draw = function() {
c.beginPath();
c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, false);
c.fillStyle = this.color;
c.fill();
c.closePath();
};
};
let ball;
function init() {
ball = new Ball(mouse.x, mouse.y, 30, 'red');
};
function animate() {
requestAnimationFrame(animate);
c.clearRect(0, 0, canvas.width, canvas.height);
ball.x = mouse.x;
ball.y = mouse.y;
ball.update();
};
init();
animate();<canvas></canvas>answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
answered Nov 23 '18 at 11:11
Blindman67Blindman67
27.1k52764
27.1k52764
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Please post a complete, working example that demonstrates the problem.
– ggorlen
Nov 23 '18 at 4:19
1
Have you see this answer?
– Starfight
Nov 23 '18 at 10:44
1
Displaying the mouse position will always be one frame behind, there is nothing you can do to change that. You can however hide the mouse
element.style.cursor = "none"when you drag an object and that removes the perceptual appearance of the delay.– Blindman67
Nov 23 '18 at 11:05
Ok my man, thanks for the response.
– Happy Coconut
Nov 23 '18 at 11:11