pimoroni-pico/examples/pico_unicorn/demo.cpp

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#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "pico/stdlib.h"
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#include "pico_unicorn.hpp"
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using namespace pimoroni;
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PicoUnicorn pico_unicorn;
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void from_hsv(float h, float s, float v, uint8_t &r, uint8_t &g, uint8_t &b) {
float i = floor(h * 6.0f);
float f = h * 6.0f - i;
v *= 255.0f;
uint8_t p = v * (1.0f - s);
uint8_t q = v * (1.0f - f * s);
uint8_t t = v * (1.0f - (1.0f - f) * s);
switch (int(i) % 6) {
case 0: r = v; g = t; b = p; break;
case 1: r = q; g = v; b = p; break;
case 2: r = p; g = v; b = t; break;
case 3: r = p; g = q; b = v; break;
case 4: r = t; g = p; b = v; break;
case 5: r = v; g = p; b = q; break;
}
}
int main() {
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pico_unicorn.init();
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bool a_pressed = false;
bool b_pressed = false;
bool x_pressed = false;
bool y_pressed = false;
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uint32_t i = 0;
while(true) {
i = i + 1;
if(pico_unicorn.is_pressed(pico_unicorn.A)) { a_pressed = true; }
if(pico_unicorn.is_pressed(pico_unicorn.B)) { b_pressed = true; }
if(pico_unicorn.is_pressed(pico_unicorn.X)) { x_pressed = true; }
if(pico_unicorn.is_pressed(pico_unicorn.Y)) { y_pressed = true; }
/*
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for(uint8_t y = 0; y < 7; y++) {
for(uint8_t x = 0; x < 16; x++) {
uint8_t r, g, b;
float h = float(x) / 63.0f + float(i) / 500.0f;
h = h - float(int(h));
float s = 1.0f;//(sin(float(i) / 200.0f) * 0.5f) + 0.5f;
float v = (float(y) / 8.0f) + 0.05f;
from_hsv(h, s, v, r, g, b);
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pico_unicorn.set_pixel(x, y, r, g, b);
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j = j + 1;
}
}*/
pico_unicorn.clear();
if(a_pressed & b_pressed & x_pressed & y_pressed) {
for(int y = 0; y < 7; y++) {
for(int x = 0; x < 16; x++) {
int v = (x + y + (i / 100)) % 2 == 0 ? 0 : 100;
pico_unicorn.set_pixel(x, y, v);
}
}
} else {
// button test phase
float pulse = fmod(float(i) / 20.0f, M_PI * 2.0f);
int v = int((sin(pulse) * 50.0f) + 50.0f);
if(a_pressed) {
}else{
pico_unicorn.set_pixel(0, 0, v);
pico_unicorn.set_pixel(0, 1, v);
pico_unicorn.set_pixel(1, 0, v);
pico_unicorn.set_pixel(1, 1, v);
pico_unicorn.set_pixel(1, 2, v / 2);
pico_unicorn.set_pixel(0, 2, v / 2);
pico_unicorn.set_pixel(2, 0, v / 2);
pico_unicorn.set_pixel(2, 1, v / 2);
}
if(b_pressed) {
}else{
pico_unicorn.set_pixel(0, 6, v);
pico_unicorn.set_pixel(0, 5, v);
pico_unicorn.set_pixel(1, 6, v);
pico_unicorn.set_pixel(1, 5, v);
pico_unicorn.set_pixel(1, 4, v / 2);
pico_unicorn.set_pixel(0, 4, v / 2);
pico_unicorn.set_pixel(2, 6, v / 2);
pico_unicorn.set_pixel(2, 5, v / 2);
}
if(x_pressed) {
}else{
pico_unicorn.set_pixel(15, 0, v);
pico_unicorn.set_pixel(15, 1, v);
pico_unicorn.set_pixel(14, 0, v);
pico_unicorn.set_pixel(14, 1, v);
pico_unicorn.set_pixel(14, 2, v / 2);
pico_unicorn.set_pixel(15, 2, v / 2);
pico_unicorn.set_pixel(13, 0, v / 2);
pico_unicorn.set_pixel(13, 1, v / 2);
}
if(y_pressed) {
}else{
pico_unicorn.set_pixel(15, 6, v);
pico_unicorn.set_pixel(15, 5, v);
pico_unicorn.set_pixel(14, 6, v);
pico_unicorn.set_pixel(14, 5, v);
pico_unicorn.set_pixel(14, 4, v / 2);
pico_unicorn.set_pixel(15, 4, v / 2);
pico_unicorn.set_pixel(13, 6, v / 2);
pico_unicorn.set_pixel(13, 5, v / 2);
}
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}
sleep_ms(10);
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}
printf("done\n");
return 0;
}