examples/tween-test/tween-test.cpp

#include <string>
#include <string.h>
#include <memory>
#include <cstdlib>

#include "tween-test.hpp"
#include "graphics/color.hpp"

using namespace blit;

const uint16_t screen_width = 320;
const uint16_t screen_height = 240;

blit::Tween tween_bounce;
blit::Tween tween_colour;

void init() {
  blit::set_screen_mode(blit::ScreenMode::hires);

  tween_bounce.init(tween_sine, 200.0f, 0.0f, 5000, -1);
  tween_bounce.start();

  tween_colour.init(tween_sine, 0.0f, 1.0f, 10000, -1);
  tween_colour.start();
}

int tick_count = 0;
void render(uint32_t time_ms) {
  char text_buffer[60];
  screen.pen = Pen(20, 30, 40);
  screen.clear();

  screen.pen = blit::hsv_to_rgba(tween_colour.value, 1.0f, 1.0f);
  screen.circle(Point(160, 20+tween_bounce.value), 20);

  screen.pen = Pen(255, 255, 255);
  sprintf(text_buffer, "Value: %f", tween_bounce.value);
  screen.text(text_buffer, minimal_font, Point(175, 35+tween_bounce.value));
}

void update(uint32_t time_ms) {
}