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BangleApps
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Merge branch 'master' of github.com:espruino/BangleApps

pull/461/head
Gordon Williams 2020-05-28 08:20:46 +01:00
parent 324c93de36 2d9475b59f
commit e1c6123063
3 changed files with 44 additions and 26 deletions
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2
apps.json
View File

@ -269,7 +269,7 @@
{ "id": "compass",
"name": "Compass",
"icon": "compass.png",
"version":"0.02",
"version":"0.03",
"description": "Simple compass that points North",
"tags": "tool,outdoors",
"storage": [

1
apps/compass/ChangeLog
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@ -1,2 +1,3 @@
0.01: New App!
0.02: Show text if uncalibrated
0.03: Eliminate flickering

65
apps/compass/compass.js
View File

@ -1,43 +1,60 @@
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);
var tg = Graphics.createArrayBuffer(120,20,1,{msb:true});
var timg = {
width:tg.getWidth(),
height:tg.getHeight(),
bpp:1,
buffer:tg.buffer
};
var ag = Graphics.createArrayBuffer(160,160,2,{msb:true});
var aimg = {
width:ag.getWidth(),
height:ag.getHeight(),
bpp:2,
buffer:ag.buffer,
palette:new Uint16Array([0,0x03FF,0xF800,0x001F])
};
ag.setColor(1);
ag.fillCircle(80,80,79,79);
ag.setColor(0);
ag.fillCircle(80,80,69,69);
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),
ag.setColor(c);
ag.fillPoly([
80+60*Math.sin(r), 80-60*Math.cos(r),
80+10*Math.sin(r+p), 80-10*Math.cos(r+p),
80+10*Math.sin(r-p), 80-10*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);
tg.clear();
tg.setFont("6x8",1);
tg.setColor(1);
if (isNaN(m.heading)) {
g.setFontAlign(-1,-1);
g.setFont("6x8",2);
g.drawString("Uncalibrated",50,12);
g.drawString("turn 360° around",25,26);
tg.setFontAlign(0,-1);
tg.setFont("6x8",1);
tg.drawString("Uncalibrated",60,4);
tg.drawString("turn 360° around",60,12);
}
else {
g.setFontAlign(0,0);
g.setFont("6x8",3);
g.drawString(Math.round(m.heading),120,12);
tg.setFontAlign(0,0);
tg.setFont("6x8",2);
tg.drawString(Math.round(m.heading),60,12);
}
g.setColor(0,0,0);
g.drawImage(timg,0,0,{scale:2});
ag.setColor(0);
arrow(oldHeading,0);
arrow(oldHeading+180,0);
arrow(m.heading,0xF800);
arrow(m.heading+180,0x001F);
arrow(m.heading,2);
arrow(m.heading+180,3);
g.drawImage(aimg,40,50);
oldHeading = m.heading;
});
Bangle.setCompassPower(1);