62 lines
1 KiB
JavaScript
62 lines
1 KiB
JavaScript
let ball = {
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x: 0,
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y: 100,
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xs: 0,
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ys: 0,
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radius: 25
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}
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function setup(){
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createCanvas(400, 400);
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background(140, 40, 40);
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}
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function draw(){
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ball.xs += 0.01;
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ball.ys += 0.04;
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ball.x += ball.xs;
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ball.y += ball.ys;
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//leftwall
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if (ball.x < ball.radius){
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ball.x = ball.radius;
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ball.xs = abs(ball.xs);
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console.warn("left");
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}
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//topwall
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if(ball.y < ball.radius){
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ball.y = ball.radius;
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ball.ys = abs(ball.ys)
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console.warn("top");
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}
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//rightwall
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if(ball.x > 400 - ball.radius){
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ball.x = 400 - ball.radius;
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ball.xs = 0 - abs(ball.xs);
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console.warn("right");
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}
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//bottomwall
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if(ball.y > 400 - ball.radius){
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ball.y = 400 - ball.radius;
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ball.ys = 0 - abs(ball.ys);
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console.warn("bottom");
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}
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drawball(ball.x, ball.y);
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}
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function drawball(x, y){
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const shadowlen = 0;
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const diameter = 50;
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stroke(70, 0, 0);
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//shadow
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fill(70, 20, 20);
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ellipse(x + shadowlen, y + shadowlen, diameter, diameter);
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//Main ball
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fill(240, 240, 255);
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ellipse(x, y, diameter, diameter);
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}
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