Create app.js

apps/tinyVario/app.js

@@ -0,0 +1,77 @@
+Bangle.setBarometerPower(true, "tinyVario");
+Bangle.setGPSPower(true, "tinyVario");
+
+require("Font8x16").add(Graphics);
+
+var intTime=10;
+var altH = [];
+var fAlt=0;
+var roc;
+var gs;
+var lastPressure = Date.now();
+var flying=false;
+var takeoffTime, flyingTime;
+
+
+Bangle.on('pressure', function(e) {
+  if ((fAlt)==0) fAlt=e.altitude;
+  fAlt=fAlt+(e.altitude-fAlt)*0.1;
+});
+
+Bangle.on('GPS', function(fix) {
+  gs=fix.speed;
+});
+          
+/*setWatch(function() {
+  
+}, (process.env.HWVERSION==2) ? BTN1 : BTN2, {repeat:true});*/
+
+setInterval(function () { 
+  altH.push(fAlt);
+  if (altH.length>=intTime) altH.shift();
+}, 1000);
+
+setInterval(function() {
+  if ((!flying) && ((roc>1) || (roc<-1) || (gs>10))) { //take-off detected
+    takeoffTime=Date().getTime();
+    flying=true;
+    flyingTime=0;
+  } 
+  if (flying) {
+    flyingTime=Date().getTime()-takeoffTime;
+    ftString=(flyingTime / 3600000).toFixed(0)+":"+(flyingTime / 60000 % 60).toFixed(0).padStart(2,'0');
+  }
+  
+  roc=(altH[altH.length-1]-altH[0])/intTime;
+  var timeStr = require("locale").time(Date(),1);
+  
+  g.reset();
+  g.clear();
+  g.setFont("8x16",4).setFontAlign(1,-1).drawString((fAlt).toFixed(0)+"m", g.getWidth(), 0);
+  //gs=100;
+  if (!isNaN(gs)) {
+    g.setFont("8x16",3).setFontAlign(1,-1).drawString(gs.toFixed(0), g.getWidth()-20, 14*7);
+    g.setFont("8x16",1).setFontAlign(-1,1).drawString("km", g.getWidth()-20, 14*8.5);
+    g.setFont("8x16",1).setFontAlign(-1,-1).drawString("h", g.getWidth()-20, 14*8.5);
+  }
+  g.setColor(0.5,0.5,0.5);
+  g.drawLine(0,14*4,g.getWidth(),14*4);
+  g.drawLine(0,14*7,g.getWidth(),14*7);
+  g.drawLine(0,14*10,g.getWidth(),14*10);
+  g.drawLine(g.getWidth()/2,14*10,g.getWidth()/2,g.getHeight()-1);
+
+  g.setColor(1,1,1);
+  if (flying) {
+    g.setFont("8x16",2).setFontAlign(0,-1).drawString(ftString, g.getWidth()*0.75, 14*10+4);
+  }
+  g.setFont("8x16",2).setFontAlign(0,-1).drawString(timeStr, g.getWidth()/4, 14*10+4);
+  if (roc>0.1) g.setColor(0,1,0);
+  if (roc<-1) g.setColor(1,0,0);
+  
+  g.setFont("8x16",3).setFontAlign(1,-1).drawString(roc.toFixed(1), g.getWidth()-20, 58);
+  g.setFont("8x16",2).setFontAlign(-1,-1).drawString("m", g.getWidth()-20, 51);
+  g.setFont("8x16",2).setFontAlign(-1,-1).drawString("s", g.getWidth()-20, 71);
+  g.drawLine(g.getWidth()-20,77,g.getWidth()-8,77);
+  g.drawLine(g.getWidth()-20,14*8.5-1,g.getWidth()-8,14*8.5-1);
+
+}, 250);