1// Copyright 2020 Google LLC.
2// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3#include "tools/fiddle/examples.h"
4REG_FIDDLE_ANIMATED(Octopus_Generator_Animated, 256, 256, false, 0, 4) {
5void paintOctopus(int x, int y, int size_base, SkColor color, SkCanvas* canvas) {
6    SkPaint paint;
7    paint.setAntiAlias(true);
8    paint.setColor(color);
9    int radius = 3*size_base;
10    canvas->drawCircle(x, y, radius, paint);
11    for (int leg = 0; leg < 8; ++leg) {
12      canvas->drawCircle(x - radius + (2*radius/7.5*leg),
13                         y + radius - pow(abs(4-leg), 2), size_base/2 + 2, paint);
14    }
15    paint.setColor(SkColorSetRGB(std::min(255u, SkColorGetR(color) + 20),
16                                 std::min(255u, SkColorGetG(color) + 20),
17                                 std::min(255u, SkColorGetB(color) + 20)));
18    canvas->drawCircle(x-size_base, y+size_base, size_base/2, paint);
19    canvas->drawCircle(x+size_base, y+size_base, size_base/2, paint);
20}
21
22void draw(SkCanvas* canvas) {
23    SkRandom rand;
24
25    for (int i = 0; i < 400; ++i) {
26      float x = rand.nextRangeScalar(0, 256);
27      float y = rand.nextRangeScalar(0, 256);
28      float s = rand.nextRangeScalar(6, 12);
29      SkColor c = rand.nextU() | SkColorSetARGB(255, 0, 0, 0);
30      float radius = rand.nextRangeScalar(0, 40);
31      float angle = (rand.nextRangeScalar(0, 1) + frame) * 6.28319;
32      x += radius * cos(angle);
33      y += radius * sin(angle);
34      paintOctopus(x, y, s, c, canvas);
35    }
36}
37}  // END FIDDLE
38