mirror of https://github.com/espruino/BangleApps
88 lines
2.9 KiB
JavaScript
88 lines
2.9 KiB
JavaScript
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// clear screen and draw widgets
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g.clear();
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Bangle.loadWidgets();
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Bangle.drawWidgets();
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var statusRect = {x: Bangle.appRect.x, y: Bangle.appRect.y, w: Bangle.appRect.w, h: 32};
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var settingsRect = {x: Bangle.appRect.x, y: Bangle.appRect.y2 - 16, w: Bangle.appRect.w, h: 16};
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var hrmRect = {x: Bangle.appRect.x, y: statusRect.y + statusRect.h, w: Bangle.appRect.w, h: Bangle.appRect.h - statusRect.h - settingsRect.h};
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var isPaused = false;
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var settings = Object.assign({
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minBpm: 120,
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maxBpm: 160,
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minConfidence: 60,
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minBuzzIntervalSeconds: 5,
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tooLowBuzzDurationMillis: 200,
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tooHighBuzzDurationMillis: 1000,
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}, require('Storage').readJSON("heartzone.settings.json", true) || {});
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// draw current settings at the bottom
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g.setFont6x15(1).setFontAlign(0, -1, 0);
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g.drawString(settings.minBpm + "<BPM<" + settings.maxBpm + ", >=" + settings.minConfidence + "% conf.", settingsRect.x + (settingsRect.w / 2), settingsRect.y + 4);
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function drawStatus(status) { // draw status bar at the top
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g.setBgColor(g.theme.bg).setColor(g.theme.fg);
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g.clearRect(statusRect);
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g.setFontVector(statusRect.h - 4).setFontAlign(0, -1, 0);
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g.drawString(status, statusRect.x + (statusRect.w / 2), statusRect.y + 2);
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}
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function drawHRM(hrmInfo) { // draw HRM info display
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g.setBgColor(hrmInfo.confidence > settings.minConfidence ? '#fff' : '#f00').setColor(hrmInfo.confidence > settings.minConfidence ? '#000' : '#fff');
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g.setFontAlign(-1, -1, 0);
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g.clearRect(hrmRect);
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var px = hrmRect.x + 10, py = hrmRect.y + 10;
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g.setFontVector((hrmRect.h / 2) - 20);
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g.drawString(hrmInfo.bpm, px, py);
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g.setFontVector(16);
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g.drawString('BPM', px + g.stringWidth(hrmInfo.bpm.toString()) + 32, py);
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py += hrmRect.h / 2;
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g.setFontVector((hrmRect.h / 2) - 20);
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g.drawString(hrmInfo.confidence, px, py);
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g.setFontVector(16);
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g.drawString('% conf.', px + g.stringWidth(hrmInfo.confidence.toString()) + 32, py);
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}
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drawHRM({bpm: '?', confidence: '?'});
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drawStatus('RUNNING');
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var lastBuzz = getTime();
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Bangle.on('HRM', function(hrmInfo) {
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if (!isPaused) {
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var currentTime;
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if (hrmInfo.confidence > settings.minConfidence) {
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if (hrmInfo.bpm < settings.minBpm) {
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currentTime = getTime();
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if (currentTime - lastBuzz > settings.minBuzzIntervalSeconds) {
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lastBuzz = currentTime;
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Bangle.buzz(settings.tooLowBuzzDurationMillis);
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}
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} else if (hrmInfo.bpm > settings.maxBpm) {
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currentTime = getTime();
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if (currentTime - lastBuzz > minBuzzIntervalSeconds) {
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lastBuzz = currentTime;
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Bangle.buzz(settings.tooHighBuzzDurationMillis);
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}
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}
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}
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}
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drawHRM(hrmInfo);
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});
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Bangle.setUI('updown', function(action) {
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if (action == -1) { // up
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isPaused = false;
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drawStatus("RUNNING");
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} else if (action == 1) { // down
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isPaused = true;
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drawStatus("PAUSED");
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}
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});
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setWatch(function() { Bangle.setHRMPower(false, "heartzone"); load(); }, BTN1);
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Bangle.setHRMPower(true, "heartzone");
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