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1 | - | var circles = []; |
1 | + | var circles = []; |
2 | - | |
2 | + | |
3 | - | function setup() { |
3 | + | function setup() { |
4 | - | createCanvas(400, 400); |
4 | + | createCanvas(400, 400); |
5 | - | var count = 0; |
5 | + | var count = 0; |
6 | - | while (count < 20) { |
6 | + | while (count < 20) { |
7 | - | circles.push({ |
7 | + | circles.push({ |
8 | - | x: random(width), |
8 | + | x: random(width), |
9 | - | y: height, |
9 | + | y: height, |
10 | - | vx: 0, |
10 | + | vx: 0, |
11 | - | vy: random(4), |
11 | + | vy: random(4), |
12 | - | r: random(4,10), |
12 | + | r: random(4,10), |
13 | - | h: random(360) |
13 | + | h: random(360) |
14 | - | }); |
14 | + | }); |
15 | - | count = count + 1; |
15 | + | count = count + 1; |
16 | - | } |
16 | + | } |
17 | } | |
18 | - | |
18 | + | |
19 | - | function mouseDragged() { |
19 | + | function mouseDragged() { |
20 | - | circles.push({ |
20 | + | circles.push({ |
21 | - | x: mouseX, |
21 | + | x: mouseX, |
22 | - | y: mouseY, |
22 | + | y: mouseY, |
23 | - | vx: 0, |
23 | + | vx: 0, |
24 | - | vy: -random(4), |
24 | + | vy: -random(4), |
25 | - | r: random(4,10), |
25 | + | r: random(4,10), |
26 | - | h: random(360) |
26 | + | h: random(360) |
27 | - | }); |
27 | + | }); |
28 | } | |
29 | - | |
29 | + | |
30 | - | function draw() { |
30 | + | function draw() { |
31 | - | background(255); |
31 | + | background(255); |
32 | - | noStroke(); |
32 | + | noStroke(); |
33 | - | |
33 | + | |
34 | - | circles.forEach(paint); |
34 | + | circles.forEach(paint); |
35 | - | circles.forEach(move); |
35 | + | circles.forEach(move); |
36 | - | circles.forEach(bounce); |
36 | + | circles.forEach(bounce); |
37 | } | |
38 | - | |
38 | + | |
39 | - | function isClickedOn(circle) { |
39 | + | function isClickedOn(circle) { |
40 | - | if (dist(mouseX, mouseY, circle.x, circle.y) < circle.r) { |
40 | + | if (dist(mouseX, mouseY, circle.x, circle.y) < circle.r) { |
41 | - | circle.r = 0; |
41 | + | circle.r = 0; |
42 | - | } |
42 | + | } |
43 | } | |
44 | - | |
44 | + | |
45 | - | function mousePressed() { |
45 | + | function mousePressed() { |
46 | - | circles.forEach(isClickedOn); |
46 | + | circles.forEach(isClickedOn); |
47 | } | |
48 | - | |
48 | + | |
49 | - | function paint(circle) { |
49 | + | function paint(circle) { |
50 | - | colorMode(HSB); |
50 | + | colorMode(HSB); |
51 | - | fill(circle.h, 100, 100); |
51 | + | fill(circle.h, 100, 100); |
52 | - | ellipse(circle.x, circle.y, circle.r*2, circle.r*2); |
52 | + | ellipse(circle.x, circle.y, circle.r*2, circle.r*2); |
53 | } | |
54 | - | |
54 | + | |
55 | - | function move(circle) { |
55 | + | function move(circle) { |
56 | - | circle.x += random(-2, 2); // vibration |
56 | + | circle.x += random(-2, 2); // vibration |
57 | - | circle.x += circle.vx; // circle.x = circle.x + circle.vx |
57 | + | circle.x += circle.vx; // circle.x = circle.x + circle.vx |
58 | - | circle.y += circle.vy; |
58 | + | circle.y += circle.vy; |
59 | } | |
60 | - | |
60 | + | |
61 | - | function bounce(circle) { |
61 | + | function bounce(circle) { |
62 | - | if (circle.x > width || circle.x < 0) { |
62 | + | if (circle.x > width || circle.x < 0) { |
63 | - | circle.vx = - circle.vx; |
63 | + | circle.vx = - circle.vx; |
64 | - | } |
64 | + | } |
65 | - | if (circle.y > height || circle.y < 0) { |
65 | + | if (circle.y > height || circle.y < 0) { |
66 | - | circle.vy = - circle.vy; |
66 | + | circle.vy = - circle.vy; |
67 | - | } |
67 | + | } |
68 | } |