forked from FOSS/BangleApps
75 lines
1.8 KiB
JavaScript
75 lines
1.8 KiB
JavaScript
var storage = require('Storage');
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const settings = storage.readJSON('setting.json',1) || { HID: false };
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var sendInProgress = false; // Only send one message at a time, do not flood
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const sendHid = function (x, y, btn1, btn2, btn3, btn4, btn5, cb) {
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try {
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const buttons = (btn5<<4) | (btn4<<3) | (btn3<<2) | (btn2<<1) | (btn1<<0);
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if (!sendInProgress) {
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sendInProgress = true;
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NRF.sendHIDReport([buttons, x, y], () => {
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sendInProgress = false;
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if (cb) cb();
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});
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}
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} catch(e) {
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print(e);
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}
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};
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function drawApp() {
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g.clear();
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g.setFont("6x8",2);
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g.setFontAlign(0,0);
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g.drawString("Joystick", 120, 120);
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const d = g.getWidth() - 18;
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function c(a) {
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return {
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width: 8,
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height: a.length,
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bpp: 1,
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buffer: (new Uint8Array(a)).buffer
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};
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}
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g.drawImage(c([16,56,124,254,16,16,16,16]),d,40);
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g.drawImage(c([16,16,16,16,254,124,56,16]),d,194);
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g.drawImage(c([0,8,12,14,255,14,12,8]),d,116);
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}
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function update() {
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const btn1 = BTN1.read();
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const btn2 = BTN2.read();
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const btn3 = BTN3.read();
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const btn4 = BTN4.read();
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const btn5 = BTN5.read();
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const acc = Bangle.getAccel();
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var x = acc.x*-127;
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var y = acc.y*-127;
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// check limits
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if (x > 127) x = 127;
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else if (x < -127) x = -127;
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if (y > 127) y = 127;
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else if (y < -127) y = -127;
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sendHid(x & 0xff, y & 0xff, btn1, btn2, btn3, btn4, btn5);
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}
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if (settings.HID === "joy") {
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drawApp();
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setInterval(update, 100); // 10 Hz
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} else {
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E.showPrompt("Enable HID?",{title:"HID disabled"}).then(function(enable) {
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if (enable) {
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settings.HID = "joy";
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storage.write('setting.json', settings);
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setTimeout(load, 1000, "hidjoystick.app.js");
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} else {
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setTimeout(load, 1000);
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}
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});
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}
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