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Merge pull request #316 from Purple-Tentacle/master 

Compass 0.02 - show text if uncalibrated
pull/312/head
Gordon Williams 2020-04-17 15:52:11 +01:00 committed by GitHub
parent 9f4d9bcb85 1017090cbe
commit 745e4d38a9
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 46 additions and 35 deletions
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2
apps.json
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@ -235,7 +235,7 @@
{ "id": "compass",
"name": "Compass",
"icon": "compass.png",
"version":"0.01",
"version":"0.02",
"description": "Simple compass that points North",
"tags": "tool,outdoors",
"storage": [

2
apps/compass/ChangeLog Normal file
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@ -0,0 +1,2 @@
0.01: New App!
0.02: Show text if uncalibrated

77
apps/compass/compass.js
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@ -1,34 +1,43 @@
g.clear();
g.setColor(0,0.5,1);
g.fillCircle(120,130,80,80);
g.setColor(0,0,0);
g.fillCircle(120,130,70,70);
function arrow(r,c) {
r=r*Math.PI/180;
var p = Math.PI/2;
g.setColor(c);
g.fillPoly([
120+60*Math.sin(r), 130-60*Math.cos(r),
120+10*Math.sin(r+p), 130-10*Math.cos(r+p),
120+10*Math.sin(r+-p), 130-10*Math.cos(r-p),
]);
}
var oldHeading = 0;
Bangle.on('mag', function(m) {
if (!Bangle.isLCDOn()) return;
g.setFont("6x8",3);
g.setColor(0);
g.fillRect(70,0,170,24);
g.setColor(0xffff);
g.setFontAlign(0,0);
g.drawString(isNaN(m.heading)?"---":Math.round(m.heading),120,12);
g.setColor(0,0,0);
arrow(oldHeading,0);
arrow(oldHeading+180,0);
arrow(m.heading,0xF800);
arrow(m.heading+180,0x001F);
oldHeading = m.heading;
});
Bangle.setCompassPower(1);
g.clear();
g.setColor(0,0.5,1);
g.fillCircle(120,130,80,80);
g.setColor(0,0,0);
g.fillCircle(120,130,70,70);
function arrow(r,c) {
r=r*Math.PI/180;
var p = Math.PI/2;
g.setColor(c);
g.fillPoly([
120+60*Math.sin(r), 130-60*Math.cos(r),
120+10*Math.sin(r+p), 130-10*Math.cos(r+p),
120+10*Math.sin(r+-p), 130-10*Math.cos(r-p),
]);
}
var oldHeading = 0;
Bangle.on('mag', function(m) {
if (!Bangle.isLCDOn()) return;
g.setFont("6x8",3);
g.setColor(0);
g.fillRect(0,0,230,40);
g.setColor(0xffff);
if (isNaN(m.heading)) {
g.setFontAlign(-1,-1);
g.setFont("6x8",2);
g.drawString("Uncalibrated",50,12);
g.drawString("turn 360° around",25,26);
}
else {
g.setFontAlign(0,0);
g.setFont("6x8",3);
g.drawString(Math.round(m.heading),120,12);
}
g.setColor(0,0,0);
arrow(oldHeading,0);
arrow(oldHeading+180,0);
arrow(m.heading,0xF800);
arrow(m.heading+180,0x001F);
oldHeading = m.heading;
});
Bangle.setCompassPower(1);