skia2/docs/examples/Octopus_Generator_Animated.cpp
Hal Canary 2cd5d43f02 [minor] docs/examples: cleanup
Change-Id: I2dfec6de7c3ccd3f6b8ed63a9235c527fc648a1e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/264647
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
2020-01-16 17:47:15 +00:00

38 lines
1.5 KiB
C++

// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
REG_FIDDLE_ANIMATED(Octopus_Generator_Animated, 256, 256, false, 0, 4) {
void paintOctopus(int x, int y, int size_base, SkColor color, SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(color);
int radius = 3*size_base;
canvas->drawCircle(x, y, radius, paint);
for (int leg = 0; leg < 8; ++leg) {
canvas->drawCircle(x - radius + (2*radius/7.5*leg),
y + radius - pow(abs(4-leg), 2), size_base/2 + 2, paint);
}
paint.setColor(SkColorSetRGB(SkTMin(255u, SkColorGetR(color) + 20),
SkTMin(255u, SkColorGetG(color) + 20),
SkTMin(255u, SkColorGetB(color) + 20)));
canvas->drawCircle(x-size_base, y+size_base, size_base/2, paint);
canvas->drawCircle(x+size_base, y+size_base, size_base/2, paint);
}
void draw(SkCanvas* canvas) {
SkRandom rand;
for (int i = 0; i < 400; ++i) {
float x = rand.nextRangeScalar(0, 256);
float y = rand.nextRangeScalar(0, 256);
float s = rand.nextRangeScalar(6, 12);
SkColor c = rand.nextU() | SkColorSetARGB(255, 0, 0, 0);
float radius = rand.nextRangeScalar(0, 40);
float angle = (rand.nextRangeScalar(0, 1) + frame) * 6.28319;
x += radius * cos(angle);
y += radius * sin(angle);
paintOctopus(x, y, s, c, canvas);
}
}
} // END FIDDLE