131 lines
3.1 KiB
C++
131 lines
3.1 KiB
C++
#include "spirodisplay.h"
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// 3rdparty lib includes
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#include <randomutils.h>
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#include <esprandom.h>
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#include <tftinstance.h>
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#include <screenmanager.h>
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// local includes
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#include "displays/menus/demosmenu.h"
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void SpiroDisplay::initScreen()
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{
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Base::initScreen();
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espgui::tft.setRotation(3);
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}
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void SpiroDisplay::redraw()
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{
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Base::redraw();
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for (int j = 0; j < std::max(1, n); j++)
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{
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if (i == 0)
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{
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espgui::tft.fillScreen(TFT_BLACK);
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n = cpputils::randomNumber<uint8_t>(2, 23, espcpputils::esp_random_device{});
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r = cpputils::randomNumber<uint8_t>(20, 100, espcpputils::esp_random_device{});
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colour = 0; //rainbow();
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}
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if (i < (360 * n))
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{
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sx = std::cos((i / n - 90) * DEG2RAD);
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sy = std::sin((i / n - 90) * DEG2RAD);
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x0 = sx * (120 - r) + 159;
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yy0 = sy * (120 - r) + 119;
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sy = std::cos(((i % 360) - 90) * DEG2RAD);
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sx = std::sin(((i % 360) - 90) * DEG2RAD);
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x1 = sx * r + x0;
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yy1 = sy * r + yy0;
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espgui::tft.drawPixel(x1, yy1, rainbow(map(i%360,0,360,0,127))); //colour);
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}
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if (i == (360 * n))
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{
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r = cpputils::randomNumber<uint8_t>(20, 100, espcpputils::esp_random_device{});//r = r / random(2,4);
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}
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if (i >= (360 * n))
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{
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auto new_i = i - (360 * n);
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sx = std::cos((new_i / n - 90) * DEG2RAD);
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sy = std::sin((new_i / n - 90) * DEG2RAD);
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x0 = sx * (120 - r) + 159;
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yy0 = sy * (120 - r) + 119;
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sy = std::cos(((new_i % 360) - 90) * DEG2RAD);
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sx = std::sin(((new_i % 360) - 90) * DEG2RAD);
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x1 = sx * r + x0;
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yy1 = sy * r + yy0;
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espgui::tft.drawPixel(x1, yy1, rainbow(map(new_i%360,0,360,0,127))); //colour);
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}
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i++;
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if (i == 2* (360 * n))
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i = 0;
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}
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}
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void SpiroDisplay::stop()
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{
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Base::stop();
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espgui::tft.setRotation(0);
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}
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void SpiroDisplay::buttonPressed(espgui::Button button)
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{
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Base::buttonPressed(button);
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switch (button)
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{
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using espgui::Button;
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case Button::Left:
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case Button::Right:
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espgui::switchScreen<DemosMenu>();
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break;
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default:;
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}
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}
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unsigned int SpiroDisplay::rainbow(int value)
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{
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// Value is expected to be in range 0-127
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// The value is converted to a spectrum colour from 0 = blue through to red = blue
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//int value = random (128);
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byte red = 0; // Red is the top 5 bits of a 16 bit colour value
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byte green = 0;// Green is the middle 6 bits
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byte blue = 0; // Blue is the bottom 5 bits
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byte quadrant = value / 32;
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if (quadrant == 0) {
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blue = 31;
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green = 2 * (value % 32);
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red = 0;
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}
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if (quadrant == 1) {
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blue = 31 - (value % 32);
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green = 63;
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red = 0;
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}
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if (quadrant == 2) {
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blue = 0;
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green = 63;
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red = value % 32;
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}
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if (quadrant == 3) {
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blue = 0;
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green = 63 - 2 * (value % 32);
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red = 31;
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}
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return (red << 11) + (green << 5) + blue;
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}
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