pimoroni-pico/examples/pico_display/pico_display_demo.cpp

109 wiersze
2.8 KiB
C++

#include <string.h>
#include <math.h>
#include <vector>
#include <cstdlib>
#include "pico_display.hpp"
#include "drivers/st7789/st7789.hpp"
#include "libraries/pico_graphics/pico_graphics.hpp"
#include "rgbled.hpp"
using namespace pimoroni;
ST7789 st7789(PicoDisplay::WIDTH, PicoDisplay::HEIGHT, ROTATE_0, false, get_spi_pins(BG_SPI_FRONT));
PicoGraphics_PenRGB332 graphics(st7789.width, st7789.height, nullptr);
RGBLED led(PicoDisplay::LED_R, PicoDisplay::LED_G, PicoDisplay::LED_B);
int main() {
st7789.set_backlight(100);
struct pt {
float x;
float y;
uint8_t r;
float dx;
float dy;
uint16_t pen;
};
std::vector<pt> shapes;
for(int i = 0; i < 100; i++) {
pt shape;
shape.x = rand() % 240;
shape.y = rand() % 135;
shape.r = (rand() % 10) + 3;
shape.dx = float(rand() % 255) / 128.0f;
shape.dy = float(rand() % 255) / 128.0f;
shape.pen = graphics.create_pen(rand() % 255, rand() % 255, rand() % 255);
shapes.push_back(shape);
}
uint32_t i = 0;
Pen BG = graphics.create_pen(120, 40, 60);
Pen YELLOW = graphics.create_pen(255, 255, 0);
Pen TEAL = graphics.create_pen(0, 255, 255);
Pen WHITE = graphics.create_pen(255, 255, 255);
while(true) {
graphics.set_pen(BG);
graphics.clear();
for(auto &shape : shapes) {
shape.x += shape.dx;
shape.y += shape.dy;
if(shape.x < 0) shape.dx *= -1;
if(shape.x >= graphics.bounds.w) shape.dx *= -1;
if(shape.y < 0) shape.dy *= -1;
if(shape.y >= graphics.bounds.h) shape.dy *= -1;
graphics.set_pen(shape.pen);
graphics.circle(Point(shape.x, shape.y), shape.r);
}
float led_step = fmod(i / 20.0f, M_PI * 2.0f);
int r = (sin(led_step) * 32.0f) + 32.0f;
led.set_rgb(r, r / 1.2f, r);
std::vector<Point> poly;
poly.push_back(Point(30, 30));
poly.push_back(Point(50, 35));
poly.push_back(Point(70, 25));
poly.push_back(Point(80, 65));
poly.push_back(Point(50, 85));
poly.push_back(Point(30, 45));
graphics.set_pen(YELLOW);
//pico_display.pixel(Point(0, 0));
graphics.polygon(poly);
graphics.set_pen(TEAL);
graphics.triangle(Point(50, 50), Point(130, 80), Point(80, 110));
graphics.set_pen(WHITE);
graphics.line(Point(50, 50), Point(120, 80));
graphics.line(Point(20, 20), Point(120, 20));
graphics.line(Point(20, 20), Point(20, 120));
for(int r = 0; r < 30; r++) {
for(int j = 0; j < 10; j++) {
float rads = ((M_PI * 2) / 30.0f) * float(r);
rads += (float(i) / 100.0f);
rads += (float(j) / 100.0f);
float cx = sin(rads) * 300.0f;
float cy = cos(rads) * 300.0f;
graphics.line(Point(120, 67), Point(cx + 120, cy + 67));
}
}
// update screen
st7789.update(&graphics);
sleep_ms(1000 / 60);
i++;
}
return 0;
}