53 lines
894 B
JavaScript
53 lines
894 B
JavaScript
let ball;
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function setup()
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{
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createCanvas(900, 600);
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ball = new Ball();
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}
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function draw()
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{
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background(0);
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ball.run();
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}
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class Ball
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{
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constructor()
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{
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this.velocity = new createVector(0, 0);
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this.location = new createVector(0, height/2);
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this.acceleration = new createVector(0.03, 0);
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this.maxVelocity = 10;
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}
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run()
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{
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this.draw();
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this.move();
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this.edges();
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}
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draw()
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{
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fill(125);
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ellipse(this.location.x, this.location.y, 40, 40);
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}
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move()
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{
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this.velocity.add(this.acceleration);
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this.velocity.limit(this.maxVelocity);
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this.location.add(this.velocity);
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}
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edges()
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{
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if (this.location.x < 0) this.location.x = width;
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else if (this.location.x > width) this.location.x = 0;
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else if (this.location.y < 0) this.location.y = height;
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else if (this.location.y > height) this.location.y = 0;
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}
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}
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