A Pen by Attractive Chaos on CodePen.
Created
June 21, 2021 19:39
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Bouncing ball
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| <script src="https://cdnjs.cloudflare.com/ajax/libs/processing.js/1.6.6/processing.min.js"></script> | |
| <script type="application/processing"> | |
| float posx, posy, r, d = 10, vx, vy, sx, sy; | |
| void setup() { | |
| size(800, 600); | |
| posx = width / 2, posy = height / 2, r = d/2; | |
| vx = vy = 0, sx = sy = 0.1; | |
| } | |
| void draw() { | |
| background(255); | |
| if (keyPressed && key == CODED) { | |
| if (keyCode == LEFT) vx -= sx; | |
| else if (keyCode == RIGHT) vx += sx; | |
| } | |
| if (mousePressed && mouseButton == LEFT) { | |
| background(255); | |
| posx = mouseX, posy = mouseY, vx = vy = 0; | |
| } else { | |
| vy += sy; | |
| posx += vx, posy += vy; | |
| if (posy + r >= height) posy = height - r, vy = -vy; | |
| if (posx - r < 0) posx = r, vx = -vx; | |
| if (posx + r >= width) posx = width - r, vx = -vx; | |
| } | |
| ellipse(posx, posy, d, d); | |
| } | |
| </script> | |
| <canvas></canvas> |
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