mirror of https://github.com/sqfmi/Watchy.git
SQFMI
3 years ago
parent
6b958b31b0
commit
ee77c1febc
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// STARRY HORIZON for Watchy by SQFMI
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// Copyright 2021 Dan Delany dan.delany@gmail.com
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// Released under free MIT License : https://github.com/dandelany/watchy-faces/blob/main/LICENSE
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#include <Watchy.h> //include the Watchy library
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#include <Fonts/FreeSansBold9pt7b.h> //include any fonts you want to use
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#include "MadeSunflower39pt7b.h"
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#include "stars.h"
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#define STAR_COUNT 900
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const int horizonY = 150;
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const int planetR = 650;
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struct xyPoint {
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int x;
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int y;
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};
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//Star myStars[STAR_COUNT];
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void initStars() {
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// The random star field is loaded from PROGMEM - see stars.h
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// this is the function that was used to generate the stars in stars.h
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// it does not run normally but can be used to re-generate stars with different parameters
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// tweak as needed, call this function in init, open serial monitor, and paste the results into stars.h
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srand(5287); // randomSeed() is not stable on ESP32, use srand
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printf("const Star STARS[] PROGMEM = {\n");
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for(int i = 0; i < STAR_COUNT; i++) {
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int starX = (rand() % 260) - 30;
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int starY = (rand() % 260) - 30;
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int radius = 0;
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if (i > STAR_COUNT * 0.99) radius = 2;
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else if (i > STAR_COUNT * 0.80) radius = 1;
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printf(" { %d, %d, %d },\n", starX, starY, radius);
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// myStars[i] = { starX, starY, radius };
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}
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printf("};\n");
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}
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struct xyPoint rotatePointAround(int x, int y, int ox, int oy, double angle) {
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// rotate X,Y point around given origin point by a given angle
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// based on https://gist.github.com/LyleScott/e36e08bfb23b1f87af68c9051f985302#file-rotate_2d_point-py-L38
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double qx = (double)ox + (cos(angle) * (double)(x - ox)) + (sin(angle) * (double)(y - oy));
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double qy = (double)oy + (-sin(angle) * (double)(x - ox)) + (cos(angle) * (double)(y - oy));
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struct xyPoint newPoint;
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newPoint.x = (int)qx;
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newPoint.y = (int)qy;
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return newPoint;
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}
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class StarryHorizon : public Watchy {
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public:
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StarryHorizon() {
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// uncomment to re-generate stars
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// initStars();
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}
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void drawWatchFace(){
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display.fillScreen(GxEPD_BLACK);
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display.fillCircle(100, horizonY + planetR, planetR, GxEPD_WHITE);
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drawGrid();
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drawStars(STARS);
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drawTime();
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drawDate();
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}
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void drawGrid() {
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int prevY = horizonY;
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for(int i = 0; i < 40; i+= 1) {
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int y = prevY + int(abs(sin(double(i) / 10) * 10));
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if(y <= 200) {
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display.drawFastHLine(0, y, 200, GxEPD_BLACK);
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}
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prevY = y;
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}
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int vanishY = horizonY - 25;
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for (int x = -230; x < 430; x += 20) {
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display.drawLine(x, 200, 100, vanishY, GxEPD_BLACK);
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}
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}
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void drawStars(const Star stars[]) {
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// draw field of stars
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// rotate stars so that they make an entire revolution once per hour
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int minute = (int)currentTime.Minute;
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double minuteAngle = ((2.0 * M_PI) / 60.0) * (double)minute;
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// printf("Minute %d, angle %f\n", (int)currentTime.Minute, minuteAngle);
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for(int starI = 0; starI < STAR_COUNT; starI++) {
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int starX = stars[starI].x;
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int starY = stars[starI].y;
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int starR = stars[starI].r;
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struct xyPoint rotated = rotatePointAround(starX, starY, 100, 100, minuteAngle);
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if(rotated.x < 0 || rotated.y < 0 || rotated.x > 200 || rotated.y > horizonY) {
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continue;
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}
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if(starR == 0) {
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display.drawPixel(rotated.x, rotated.y, GxEPD_WHITE);
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} else {
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display.fillCircle(rotated.x, rotated.y, starR, GxEPD_WHITE);
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}
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}
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}
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void drawTime() {
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display.setFont(&MADE_Sunflower_PERSONAL_USE39pt7b);
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display.setTextColor(GxEPD_WHITE);
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display.setTextWrap(false);
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char* timeStr;
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asprintf(&timeStr, "%d:%02d", currentTime.Hour, currentTime.Minute);
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drawCenteredString(timeStr, 100, 115, false);
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free(timeStr);
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}
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void drawDate() {
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String monthStr = monthShortStr(currentTime.Month);
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String dayOfWeek = dayShortStr(currentTime.Wday);
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display.setFont(&FreeSansBold9pt7b);
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display.setTextColor(GxEPD_WHITE);
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display.setTextWrap(false);
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char* dateStr;
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asprintf(&dateStr, "%s %s %d", dayOfWeek, monthStr, currentTime.Day);
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drawCenteredString(dateStr, 100, 140, true);
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free(dateStr);
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}
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void drawCenteredString(const String &str, int x, int y, bool drawBg) {
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int16_t x1, y1;
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uint16_t w, h;
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display.getTextBounds(str, x, y, &x1, &y1, &w, &h);
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// printf("bounds: %d x %d y, %d x1 %d y1, %d w, %d h\n", 0, 100, x1, y1, w, h);
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display.setCursor(x - w / 2, y);
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if(drawBg) {
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int padY = 3;
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int padX = 10;
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display.fillRect(x - (w / 2 + padX), y - (h + padY), w + padX*2, h + padY*2, GxEPD_BLACK);
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}
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// uncomment to draw bounding box
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// display.drawRect(x - w / 2, y - h, w, h, GxEPD_WHITE);
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display.print(str);
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}
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};
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StarryHorizon face; //instantiate watchface
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void setup() {
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face.init(); //call init in setup
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}
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void loop() {
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// this should never run, Watchy deep sleeps after init();
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}
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// STARRY HORIZON for Watchy by SQFMI
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// Copyright 2021 Dan Delany dan.delany@gmail.com
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// Released under free MIT License : https://github.com/dandelany/watchy-faces/blob/main/LICENSE
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#include <Watchy.h> //include the Watchy library
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#include <Fonts/FreeSansBold9pt7b.h> //include any fonts you want to use
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#include "MadeSunflower39pt7b.h"
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#include "stars.h"
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#define STAR_COUNT 900
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const int horizonY = 150;
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const int planetR = 650;
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struct xyPoint {
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int x;
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int y;
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};
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//Star myStars[STAR_COUNT];
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void initStars() {
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// The random star field is loaded from PROGMEM - see stars.h
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// this is the function that was used to generate the stars in stars.h
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// it does not run normally but can be used to re-generate stars with different parameters
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// tweak as needed, call this function in init, open serial monitor, and paste the results into stars.h
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srand(5287); // randomSeed() is not stable on ESP32, use srand
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printf("const Star STARS[] PROGMEM = {\n");
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for(int i = 0; i < STAR_COUNT; i++) {
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int starX = (rand() % 260) - 30;
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int starY = (rand() % 260) - 30;
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int radius = 0;
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if (i > STAR_COUNT * 0.99) radius = 2;
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else if (i > STAR_COUNT * 0.80) radius = 1;
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printf(" { %d, %d, %d },\n", starX, starY, radius);
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// myStars[i] = { starX, starY, radius };
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}
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printf("};\n");
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}
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struct xyPoint rotatePointAround(int x, int y, int ox, int oy, double angle) {
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// rotate X,Y point around given origin point by a given angle
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// based on https://gist.github.com/LyleScott/e36e08bfb23b1f87af68c9051f985302#file-rotate_2d_point-py-L38
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double qx = (double)ox + (cos(angle) * (double)(x - ox)) + (sin(angle) * (double)(y - oy));
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double qy = (double)oy + (-sin(angle) * (double)(x - ox)) + (cos(angle) * (double)(y - oy));
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struct xyPoint newPoint;
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newPoint.x = (int)qx;
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newPoint.y = (int)qy;
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return newPoint;
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}
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class StarryHorizon : public Watchy {
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public:
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StarryHorizon() {
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// uncomment to re-generate stars
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// initStars();
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}
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void drawWatchFace(){
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display.fillScreen(GxEPD_BLACK);
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display.fillCircle(100, horizonY + planetR, planetR, GxEPD_WHITE);
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drawGrid();
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drawStars(STARS);
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drawTime();
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drawDate();
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}
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void drawGrid() {
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int prevY = horizonY;
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for(int i = 0; i < 40; i+= 1) {
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int y = prevY + int(abs(sin(double(i) / 10) * 10));
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if(y <= 200) {
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display.drawFastHLine(0, y, 200, GxEPD_BLACK);
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}
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prevY = y;
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}
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int vanishY = horizonY - 25;
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for (int x = -230; x < 430; x += 20) {
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display.drawLine(x, 200, 100, vanishY, GxEPD_BLACK);
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}
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}
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void drawStars(const Star stars[]) {
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// draw field of stars
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// rotate stars so that they make an entire revolution once per hour
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int minute = (int)currentTime.Minute;
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double minuteAngle = ((2.0 * M_PI) / 60.0) * (double)minute;
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// printf("Minute %d, angle %f\n", (int)currentTime.Minute, minuteAngle);
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for(int starI = 0; starI < STAR_COUNT; starI++) {
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int starX = stars[starI].x;
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int starY = stars[starI].y;
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int starR = stars[starI].r;
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struct xyPoint rotated = rotatePointAround(starX, starY, 100, 100, minuteAngle);
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if(rotated.x < 0 || rotated.y < 0 || rotated.x > 200 || rotated.y > horizonY) {
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continue;
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}
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if(starR == 0) {
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display.drawPixel(rotated.x, rotated.y, GxEPD_WHITE);
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} else {
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display.fillCircle(rotated.x, rotated.y, starR, GxEPD_WHITE);
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}
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}
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}
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void drawTime() {
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display.setFont(&MADE_Sunflower_PERSONAL_USE39pt7b);
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display.setTextColor(GxEPD_WHITE);
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display.setTextWrap(false);
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char* timeStr;
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asprintf(&timeStr, "%d:%02d", currentTime.Hour, currentTime.Minute);
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drawCenteredString(timeStr, 100, 115, false);
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free(timeStr);
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}
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void drawDate() {
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String monthStr = monthShortStr(currentTime.Month);
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String dayOfWeek = dayShortStr(currentTime.Wday);
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display.setFont(&FreeSansBold9pt7b);
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display.setTextColor(GxEPD_WHITE);
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display.setTextWrap(false);
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char* dateStr;
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asprintf(&dateStr, "%s %s %d", dayOfWeek, monthStr, currentTime.Day);
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drawCenteredString(dateStr, 100, 140, true);
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free(dateStr);
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}
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void drawCenteredString(const String &str, int x, int y, bool drawBg) {
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int16_t x1, y1;
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uint16_t w, h;
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display.getTextBounds(str, x, y, &x1, &y1, &w, &h);
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// printf("bounds: %d x %d y, %d x1 %d y1, %d w, %d h\n", 0, 100, x1, y1, w, h);
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display.setCursor(x - w / 2, y);
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if(drawBg) {
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int padY = 3;
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int padX = 10;
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display.fillRect(x - (w / 2 + padX), y - (h + padY), w + padX*2, h + padY*2, GxEPD_BLACK);
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}
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// uncomment to draw bounding box
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// display.drawRect(x - w / 2, y - h, w, h, GxEPD_WHITE);
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display.print(str);
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}
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};
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StarryHorizon face; //instantiate watchface
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void setup() {
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face.init(); //call init in setup
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}
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void loop() {
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// this should never run, Watchy deep sleeps after init();
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}
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