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splits m:b simulator state

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darzu 2016-08-30 11:51:32 -07:00
parent a984778dfd
commit 89e899cc79
12 changed files with 1519 additions and 711 deletions
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711
sim/state.ts
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@ -1,711 +0,0 @@
namespace pxsim {
export interface RuntimeOptions {
theme: string;
}
export enum DisplayMode {
bw,
greyscale
}
export enum PinFlags {
Unused = 0,
Digital = 0x0001,
Analog = 0x0002,
Input = 0x0004,
Output = 0x0008,
Touch = 0x0010
}
export class Pin {
constructor(public id: number) { }
touched = false;
value = 0;
period = 0;
mode = PinFlags.Unused;
pitch = false;
pull = 0; // PullDown
isTouched(): boolean {
this.mode = PinFlags.Touch;
return this.touched;
}
}
export class Button {
constructor(public id: number) { }
pressed: boolean;
}
export class EventBus {
private queues: Map<EventQueue<number>> = {};
constructor(private runtime: Runtime) { }
listen(id: number, evid: number, handler: RefAction) {
let k = id + ":" + evid;
let queue = this.queues[k];
if (!queue) queue = this.queues[k] = new EventQueue<number>(this.runtime);
queue.handler = handler;
}
queue(id: number, evid: number, value: number = 0) {
let k = id + ":" + evid;
let queue = this.queues[k];
if (queue) queue.push(value);
}
}
export interface PacketBuffer {
data: number[] | string;
rssi?: number;
}
export class RadioDatagram {
datagram: PacketBuffer[] = [];
lastReceived: PacketBuffer = {
data: [0, 0, 0, 0],
rssi: -1
};
constructor(private runtime: Runtime) {
}
queue(packet: PacketBuffer) {
if (this.datagram.length < 4)
this.datagram.push(packet);
(<Board>runtime.board).bus.queue(DAL.MICROBIT_ID_RADIO, DAL.MICROBIT_RADIO_EVT_DATAGRAM);
}
send(buffer: number[] | string) {
if (buffer instanceof String) buffer = buffer.slice(0, 32);
else buffer = buffer.slice(0, 8);
Runtime.postMessage(<SimulatorRadioPacketMessage>{
type: "radiopacket",
data: buffer
})
}
recv(): PacketBuffer {
let r = this.datagram.shift();
if (!r) r = {
data: [0, 0, 0, 0],
rssi: -1
};
return this.lastReceived = r;
}
}
export class RadioBus {
// uint8_t radioDefaultGroup = MICROBIT_RADIO_DEFAULT_GROUP;
groupId = 0; // todo
power = 0;
transmitSerialNumber = false;
datagram: RadioDatagram;
constructor(private runtime: Runtime) {
this.datagram = new RadioDatagram(runtime);
}
setGroup(id: number) {
this.groupId = id & 0xff; // byte only
}
setTransmitPower(power: number) {
this.power = Math.max(0, Math.min(7, power));
}
setTransmitSerialNumber(sn: boolean) {
this.transmitSerialNumber = !!sn;
}
broadcast(msg: number) {
Runtime.postMessage(<SimulatorEventBusMessage>{
type: "eventbus",
id: DAL.MES_BROADCAST_GENERAL_ID,
eventid: msg,
power: this.power,
group: this.groupId
})
}
}
interface AccelerometerSample {
x: number;
y: number;
z: number;
}
interface ShakeHistory {
x: boolean;
y: boolean;
z: boolean;
count: number;
shaken: number;
timer: number;
}
/**
* Co-ordinate systems that can be used.
* RAW: Unaltered data. Data will be returned directly from the accelerometer.
*
* SIMPLE_CARTESIAN: Data will be returned based on an easy to understand alignment, consistent with the cartesian system taught in schools.
* When held upright, facing the user:
*
* /
* +--------------------+ z
* | |
* | ..... |
* | * ..... * |
* ^ | ..... |
* | | |
* y +--------------------+ x-->
*
*
* NORTH_EAST_DOWN: Data will be returned based on the industry convention of the North East Down (NED) system.
* When held upright, facing the user:
*
* z
* +--------------------+ /
* | |
* | ..... |
* | * ..... * |
* ^ | ..... |
* | | |
* x +--------------------+ y-->
*
*/
export enum MicroBitCoordinateSystem {
RAW,
SIMPLE_CARTESIAN,
NORTH_EAST_DOWN
}
export class Accelerometer {
private sigma: number = 0; // the number of ticks that the instantaneous gesture has been stable.
private lastGesture: number = 0; // the last, stable gesture recorded.
private currentGesture: number = 0 // the instantaneous, unfiltered gesture detected.
private sample: AccelerometerSample = { x: 0, y: 0, z: -1023 }
private shake: ShakeHistory = { x: false, y: false, z: false, count: 0, shaken: 0, timer: 0 }; // State information needed to detect shake events.
private pitch: number;
private roll: number;
private id: number;
public isActive = false;
public sampleRange = 2;
constructor(public runtime: Runtime) {
this.id = DAL.MICROBIT_ID_ACCELEROMETER;
}
public setSampleRange(range: number) {
this.activate();
this.sampleRange = Math.max(1, Math.min(8, range));
}
public activate() {
if (!this.isActive) {
this.isActive = true;
this.runtime.queueDisplayUpdate();
}
}
/**
* Reads the acceleration data from the accelerometer, and stores it in our buffer.
* This is called by the tick() member function, if the interrupt is set!
*/
public update(x: number, y: number, z: number) {
// read MSB values...
this.sample.x = Math.floor(x);
this.sample.y = Math.floor(y);
this.sample.z = Math.floor(z);
// Update gesture tracking
this.updateGesture();
// Indicate that a new sample is available
board().bus.queue(this.id, DAL.MICROBIT_ACCELEROMETER_EVT_DATA_UPDATE)
}
public instantaneousAccelerationSquared() {
// Use pythagoras theorem to determine the combined force acting on the device.
return this.sample.x * this.sample.x + this.sample.y * this.sample.y + this.sample.z * this.sample.z;
}
/**
* Service function. Determines the best guess posture of the device based on instantaneous data.
* This makes no use of historic data (except for shake), and forms this input to the filter implemented in updateGesture().
*
* @return A best guess of the current posture of the device, based on instantaneous data.
*/
private instantaneousPosture(): number {
let force = this.instantaneousAccelerationSquared();
let shakeDetected = false;
// Test for shake events.
// We detect a shake by measuring zero crossings in each axis. In other words, if we see a strong acceleration to the left followed by
// a string acceleration to the right, then we can infer a shake. Similarly, we can do this for each acxis (left/right, up/down, in/out).
//
// If we see enough zero crossings in succession (MICROBIT_ACCELEROMETER_SHAKE_COUNT_THRESHOLD), then we decide that the device
// has been shaken.
if ((this.getX() < -DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && this.shake.x) || (this.getX() > DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && !this.shake.x)) {
shakeDetected = true;
this.shake.x = !this.shake.x;
}
if ((this.getY() < -DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && this.shake.y) || (this.getY() > DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && !this.shake.y)) {
shakeDetected = true;
this.shake.y = !this.shake.y;
}
if ((this.getZ() < -DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && this.shake.z) || (this.getZ() > DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && !this.shake.z)) {
shakeDetected = true;
this.shake.z = !this.shake.z;
}
if (shakeDetected && this.shake.count < DAL.MICROBIT_ACCELEROMETER_SHAKE_COUNT_THRESHOLD && ++this.shake.count == DAL.MICROBIT_ACCELEROMETER_SHAKE_COUNT_THRESHOLD)
this.shake.shaken = 1;
if (++this.shake.timer >= DAL.MICROBIT_ACCELEROMETER_SHAKE_DAMPING) {
this.shake.timer = 0;
if (this.shake.count > 0) {
if (--this.shake.count == 0)
this.shake.shaken = 0;
}
}
if (this.shake.shaken)
return DAL.MICROBIT_ACCELEROMETER_EVT_SHAKE;
let sq = (n: number) => n * n
if (force < sq(DAL.MICROBIT_ACCELEROMETER_FREEFALL_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_FREEFALL;
if (force > sq(DAL.MICROBIT_ACCELEROMETER_3G_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_3G;
if (force > sq(DAL.MICROBIT_ACCELEROMETER_6G_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_6G;
if (force > sq(DAL.MICROBIT_ACCELEROMETER_8G_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_8G;
// Determine our posture.
if (this.getX() < (-1000 + DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_LEFT;
if (this.getX() > (1000 - DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_RIGHT;
if (this.getY() < (-1000 + DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_DOWN;
if (this.getY() > (1000 - DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_UP;
if (this.getZ() < (-1000 + DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_FACE_UP;
if (this.getZ() > (1000 - DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_FACE_DOWN;
return 0;
}
updateGesture() {
// Determine what it looks like we're doing based on the latest sample...
let g = this.instantaneousPosture();
// Perform some low pass filtering to reduce jitter from any detected effects
if (g == this.currentGesture) {
if (this.sigma < DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING)
this.sigma++;
}
else {
this.currentGesture = g;
this.sigma = 0;
}
// If we've reached threshold, update our record and raise the relevant event...
if (this.currentGesture != this.lastGesture && this.sigma >= DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING) {
this.lastGesture = this.currentGesture;
board().bus.queue(DAL.MICROBIT_ID_GESTURE, this.lastGesture);
}
}
/**
* Reads the X axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.
* @return The force measured in the X axis, in milli-g.
*
* Example:
* @code
* uBit.accelerometer.getX();
* uBit.accelerometer.getX(RAW);
* @endcode
*/
public getX(system: MicroBitCoordinateSystem = MicroBitCoordinateSystem.SIMPLE_CARTESIAN): number {
this.activate();
switch (system) {
case MicroBitCoordinateSystem.SIMPLE_CARTESIAN:
return -this.sample.x;
case MicroBitCoordinateSystem.NORTH_EAST_DOWN:
return this.sample.y;
//case MicroBitCoordinateSystem.SIMPLE_CARTESIAN.RAW:
default:
return this.sample.x;
}
}
/**
* Reads the Y axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.
* @return The force measured in the Y axis, in milli-g.
*
* Example:
* @code
* uBit.accelerometer.getY();
* uBit.accelerometer.getY(RAW);
* @endcode
*/
public getY(system: MicroBitCoordinateSystem = MicroBitCoordinateSystem.SIMPLE_CARTESIAN): number {
this.activate();
switch (system) {
case MicroBitCoordinateSystem.SIMPLE_CARTESIAN:
return -this.sample.y;
case MicroBitCoordinateSystem.NORTH_EAST_DOWN:
return -this.sample.x;
//case RAW:
default:
return this.sample.y;
}
}
/**
* Reads the Z axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.
* @return The force measured in the Z axis, in milli-g.
*
* Example:
* @code
* uBit.accelerometer.getZ();
* uBit.accelerometer.getZ(RAW);
* @endcode
*/
public getZ(system: MicroBitCoordinateSystem = MicroBitCoordinateSystem.SIMPLE_CARTESIAN): number {
this.activate();
switch (system) {
case MicroBitCoordinateSystem.NORTH_EAST_DOWN:
return -this.sample.z;
//case MicroBitCoordinateSystem.SIMPLE_CARTESIAN:
//case MicroBitCoordinateSystem.RAW:
default:
return this.sample.z;
}
}
/**
* Provides a rotation compensated pitch of the device, based on the latest update from the accelerometer.
* @return The pitch of the device, in degrees.
*
* Example:
* @code
* uBit.accelerometer.getPitch();
* @endcode
*/
public getPitch(): number {
this.activate();
return Math.floor((360 * this.getPitchRadians()) / (2 * Math.PI));
}
getPitchRadians(): number {
this.recalculatePitchRoll();
return this.pitch;
}
/**
* Provides a rotation compensated roll of the device, based on the latest update from the accelerometer.
* @return The roll of the device, in degrees.
*
* Example:
* @code
* uBit.accelerometer.getRoll();
* @endcode
*/
public getRoll(): number {
this.activate();
return Math.floor((360 * this.getRollRadians()) / (2 * Math.PI));
}
getRollRadians(): number {
this.recalculatePitchRoll();
return this.roll;
}
/**
* Recalculate roll and pitch values for the current sample.
* We only do this at most once per sample, as the necessary trigonemteric functions are rather
* heavyweight for a CPU without a floating point unit...
*/
recalculatePitchRoll() {
let x = this.getX(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let y = this.getY(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let z = this.getZ(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
this.roll = Math.atan2(y, z);
this.pitch = Math.atan(-x / (y * Math.sin(this.roll) + z * Math.cos(this.roll)));
}
}
export class Board extends BaseBoard {
id: string;
// the bus
bus: EventBus;
radio: RadioBus;
// display
image = createInternalImage(5);
brigthness = 255;
displayMode = DisplayMode.bw;
font: Image = createFont();
// buttons
usesButtonAB: boolean = false;
buttons: Button[];
// pins
pins: Pin[];
// serial
serialIn: string[] = [];
// sensors
accelerometer: Accelerometer;
// gestures
useShake = false;
usesHeading = false;
heading = 90;
usesTemperature = false;
temperature = 21;
usesLightLevel = false;
lightLevel = 128;
animationQ: AnimationQueue;
constructor() {
super()
this.id = "b" + Math_.random(2147483647);
this.animationQ = new AnimationQueue(runtime);
this.bus = new EventBus(runtime);
this.radio = new RadioBus(runtime);
this.accelerometer = new Accelerometer(runtime);
this.buttons = [
new Button(DAL.MICROBIT_ID_BUTTON_A),
new Button(DAL.MICROBIT_ID_BUTTON_B),
new Button(DAL.MICROBIT_ID_BUTTON_AB)
];
this.pins = [
new Pin(DAL.MICROBIT_ID_IO_P0),
new Pin(DAL.MICROBIT_ID_IO_P1),
new Pin(DAL.MICROBIT_ID_IO_P2),
new Pin(DAL.MICROBIT_ID_IO_P3),
new Pin(DAL.MICROBIT_ID_IO_P4),
new Pin(DAL.MICROBIT_ID_IO_P5),
new Pin(DAL.MICROBIT_ID_IO_P6),
new Pin(DAL.MICROBIT_ID_IO_P7),
new Pin(DAL.MICROBIT_ID_IO_P8),
new Pin(DAL.MICROBIT_ID_IO_P9),
new Pin(DAL.MICROBIT_ID_IO_P10),
new Pin(DAL.MICROBIT_ID_IO_P11),
new Pin(DAL.MICROBIT_ID_IO_P12),
new Pin(DAL.MICROBIT_ID_IO_P13),
new Pin(DAL.MICROBIT_ID_IO_P14),
new Pin(DAL.MICROBIT_ID_IO_P15),
new Pin(DAL.MICROBIT_ID_IO_P16),
null,
null,
new Pin(DAL.MICROBIT_ID_IO_P19),
new Pin(DAL.MICROBIT_ID_IO_P20)
];
}
initAsync(msg: SimulatorRunMessage): Promise<void> {
let options = (msg.options || {}) as RuntimeOptions;
let theme: micro_bit.IBoardTheme;
switch (options.theme) {
case 'blue': theme = micro_bit.themes[0]; break;
case 'yellow': theme = micro_bit.themes[1]; break;
case 'green': theme = micro_bit.themes[2]; break;
case 'red': theme = micro_bit.themes[3]; break;
default: theme = pxsim.micro_bit.randomTheme();
}
let view = new pxsim.micro_bit.MicrobitBoardSvg({
theme: theme,
runtime: runtime
})
document.body.innerHTML = ""; // clear children
document.body.appendChild(view.element);
return Promise.resolve();
}
receiveMessage(msg: SimulatorMessage) {
if (!runtime || runtime.dead) return;
switch (msg.type || "") {
case "eventbus":
let ev = <SimulatorEventBusMessage>msg;
this.bus.queue(ev.id, ev.eventid, ev.value);
break;
case "serial":
this.serialIn.push((<SimulatorSerialMessage>msg).data || "");
break;
case "radiopacket":
let packet = <SimulatorRadioPacketMessage>msg;
this.radio.datagram.queue({ data: packet.data, rssi: packet.rssi || 0 })
break;
}
}
readSerial() {
let v = this.serialIn.shift() || "";
return v;
}
kill() {
super.kill();
AudioContextManager.stop();
}
serialOutBuffer: string = "";
writeSerial(s: string) {
for (let i = 0; i < s.length; ++i) {
let c = s[i];
this.serialOutBuffer += c;
if (c == "\n") {
Runtime.postMessage(<SimulatorSerialMessage>{
type: "serial",
data: this.serialOutBuffer,
id: runtime.id,
sim: true
})
this.serialOutBuffer = ""
break;
}
}
}
}
export class Image extends RefObject {
public static height: number = 5;
public width: number;
public data: number[];
constructor(width: number, data: number[]) {
super()
this.width = width;
this.data = data;
}
public print() {
console.log(`Image id:${this.id} refs:${this.refcnt} size:${this.width}x${Image.height}`)
}
public get(x: number, y: number): number {
if (x < 0 || x >= this.width || y < 0 || y >= 5) return 0;
return this.data[y * this.width + x];
}
public set(x: number, y: number, v: number) {
if (x < 0 || x >= this.width || y < 0 || y >= 5) return;
this.data[y * this.width + x] = Math.max(0, Math.min(255, v));
}
public copyTo(xSrcIndex: number, length: number, target: Image, xTargetIndex: number): void {
for (let x = 0; x < length; x++) {
for (let y = 0; y < 5; y++) {
let value = this.get(xSrcIndex + x, y);
target.set(xTargetIndex + x, y, value);
}
}
}
public shiftLeft(cols: number) {
for (let x = 0; x < this.width; ++x)
for (let y = 0; y < 5; ++y)
this.set(x, y, x < this.width - cols ? this.get(x + cols, y) : 0);
}
public shiftRight(cols: number) {
for (let x = this.width - 1; x <= 0; --x)
for (let y = 0; y < 5; ++y)
this.set(x, y, x > cols ? this.get(x - cols, y) : 0);
}
public clear(): void {
for (let i = 0; i < this.data.length; ++i)
this.data[i] = 0;
}
}
export function createInternalImage(width: number): Image {
let img = createImage(width)
pxsim.noLeakTracking(img)
return img
}
export function createImage(width: number): Image {
return new Image(width, new Array(width * 5));
}
export function createImageFromBuffer(data: number[]): Image {
return new Image(data.length / 5, data);
}
export function createImageFromString(text: string): Image {
let font = board().font;
let w = font.width;
let sprite = createInternalImage(6 * text.length - 1);
let k = 0;
for (let i = 0; i < text.length; i++) {
let charCode = text.charCodeAt(i);
let charStart = (charCode - 32) * 5;
if (charStart < 0 || charStart + 5 > w) {
charCode = " ".charCodeAt(0);
charStart = (charCode - 32) * 5;
}
font.copyTo(charStart, 5, sprite, k);
k = k + 5;
if (i < text.length - 1) {
k = k + 1;
}
}
return sprite;
}
export function createFont(): Image {
const data = [0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x8, 0x8, 0x0, 0x8, 0xa, 0x4a, 0x40, 0x0, 0x0, 0xa, 0x5f, 0xea, 0x5f, 0xea, 0xe, 0xd9, 0x2e, 0xd3, 0x6e, 0x19, 0x32, 0x44, 0x89, 0x33, 0xc, 0x92, 0x4c, 0x92, 0x4d, 0x8, 0x8, 0x0, 0x0, 0x0, 0x4, 0x88, 0x8, 0x8, 0x4, 0x8, 0x4, 0x84, 0x84, 0x88, 0x0, 0xa, 0x44, 0x8a, 0x40, 0x0, 0x4, 0x8e, 0xc4, 0x80, 0x0, 0x0, 0x0, 0x4, 0x88, 0x0, 0x0, 0xe, 0xc0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x1, 0x22, 0x44, 0x88, 0x10, 0xc, 0x92, 0x52, 0x52, 0x4c, 0x4, 0x8c, 0x84, 0x84, 0x8e, 0x1c, 0x82, 0x4c, 0x90, 0x1e, 0x1e, 0xc2, 0x44, 0x92, 0x4c, 0x6, 0xca, 0x52, 0x5f, 0xe2, 0x1f, 0xf0, 0x1e, 0xc1, 0x3e, 0x2, 0x44, 0x8e, 0xd1, 0x2e, 0x1f, 0xe2, 0x44, 0x88, 0x10, 0xe, 0xd1, 0x2e, 0xd1, 0x2e, 0xe, 0xd1, 0x2e, 0xc4, 0x88, 0x0, 0x8, 0x0, 0x8, 0x0, 0x0, 0x4, 0x80, 0x4, 0x88, 0x2, 0x44, 0x88, 0x4, 0x82, 0x0, 0xe, 0xc0, 0xe, 0xc0, 0x8, 0x4, 0x82, 0x44, 0x88, 0xe, 0xd1, 0x26, 0xc0, 0x4, 0xe, 0xd1, 0x35, 0xb3, 0x6c, 0xc, 0x92, 0x5e, 0xd2, 0x52, 0x1c, 0x92, 0x5c, 0x92, 0x5c, 0xe, 0xd0, 0x10, 0x10, 0xe, 0x1c, 0x92, 0x52, 0x52, 0x5c, 0x1e, 0xd0, 0x1c, 0x90, 0x1e, 0x1e, 0xd0, 0x1c, 0x90, 0x10, 0xe, 0xd0, 0x13, 0x71, 0x2e, 0x12, 0x52, 0x5e, 0xd2, 0x52, 0x1c, 0x88, 0x8, 0x8, 0x1c, 0x1f, 0xe2, 0x42, 0x52, 0x4c, 0x12, 0x54, 0x98, 0x14, 0x92, 0x10, 0x10, 0x10, 0x10, 0x1e, 0x11, 0x3b, 0x75, 0xb1, 0x31, 0x11, 0x39, 0x35, 0xb3, 0x71, 0xc, 0x92, 0x52, 0x52, 0x4c, 0x1c, 0x92, 0x5c, 0x90, 0x10, 0xc, 0x92, 0x52, 0x4c, 0x86, 0x1c, 0x92, 0x5c, 0x92, 0x51, 0xe, 0xd0, 0xc, 0x82, 0x5c, 0x1f, 0xe4, 0x84, 0x84, 0x84, 0x12, 0x52, 0x52, 0x52, 0x4c, 0x11, 0x31, 0x31, 0x2a, 0x44, 0x11, 0x31, 0x35, 0xbb, 0x71, 0x12, 0x52, 0x4c, 0x92, 0x52, 0x11, 0x2a, 0x44, 0x84, 0x84, 0x1e, 0xc4, 0x88, 0x10, 0x1e, 0xe, 0xc8, 0x8, 0x8, 0xe, 0x10, 0x8, 0x4, 0x82, 0x41, 0xe, 0xc2, 0x42, 0x42, 0x4e, 0x4, 0x8a, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f, 0x8, 0x4, 0x80, 0x0, 0x0, 0x0, 0xe, 0xd2, 0x52, 0x4f, 0x10, 0x10, 0x1c, 0x92, 0x5c, 0x0, 0xe, 0xd0, 0x10, 0xe, 0x2, 0x42, 0x4e, 0xd2, 0x4e, 0xc, 0x92, 0x5c, 0x90, 0xe, 0x6, 0xc8, 0x1c, 0x88, 0x8, 0xe, 0xd2, 0x4e, 0xc2, 0x4c, 0x10, 0x10, 0x1c, 0x92, 0x52, 0x8, 0x0, 0x8, 0x8, 0x8, 0x2, 0x40, 0x2, 0x42, 0x4c, 0x10, 0x14, 0x98, 0x14, 0x92, 0x8, 0x8, 0x8, 0x8, 0x6, 0x0, 0x1b, 0x75, 0xb1, 0x31, 0x0, 0x1c, 0x92, 0x52, 0x52, 0x0, 0xc, 0x92, 0x52, 0x4c, 0x0, 0x1c, 0x92, 0x5c, 0x90, 0x0, 0xe, 0xd2, 0x4e, 0xc2, 0x0, 0xe, 0xd0, 0x10, 0x10, 0x0, 0x6, 0xc8, 0x4, 0x98, 0x8, 0x8, 0xe, 0xc8, 0x7, 0x0, 0x12, 0x52, 0x52, 0x4f, 0x0, 0x11, 0x31, 0x2a, 0x44, 0x0, 0x11, 0x31, 0x35, 0xbb, 0x0, 0x12, 0x4c, 0x8c, 0x92, 0x0, 0x11, 0x2a, 0x44, 0x98, 0x0, 0x1e, 0xc4, 0x88, 0x1e, 0x6, 0xc4, 0x8c, 0x84, 0x86, 0x8, 0x8, 0x8, 0x8, 0x8, 0x18, 0x8, 0xc, 0x88, 0x18, 0x0, 0x0, 0xc, 0x83, 0x60];
let nb = data.length;
let n = nb / 5;
let font = createInternalImage(nb);
for (let c = 0; c < n; c++) {
for (let row = 0; row < 5; row++) {
let char = data[c * 5 + row];
for (let col = 0; col < 5; col++) {
if ((char & (1 << col)) != 0)
font.set((c * 5 + 4) - col, row, 255);
}
}
}
return font;
}
}

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namespace pxsim.input {
export function onGesture(gesture: number, handler: RefAction) {
let b = board().accelerometerState;
b.accelerometer.activate();
if (gesture == 11 && !b.useShake) { // SAKE
b.useShake = true;
runtime.queueDisplayUpdate();
}
pxt.registerWithDal(DAL.MICROBIT_ID_GESTURE, gesture, handler);
}
export function acceleration(dimension: number): number {
let b = board().accelerometerState;
let acc = b.accelerometer;
acc.activate();
switch (dimension) {
case 0: return acc.getX();
case 1: return acc.getY();
case 2: return acc.getZ();
default: return Math.floor(Math.sqrt(acc.instantaneousAccelerationSquared()));
}
}
export function rotation(kind: number): number {
let b = board().accelerometerState;
let acc = b.accelerometer;
acc.activate();
let x = acc.getX(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let y = acc.getX(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let z = acc.getX(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let roll = Math.atan2(y, z);
let pitch = Math.atan(-x / (y * Math.sin(roll) + z * Math.cos(roll)));
let r = 0;
switch (kind) {
case 0: r = pitch; break;
case 1: r = roll; break;
}
return Math.floor(r / Math.PI * 180);
}
export function setAccelerometerRange(range: number) {
let b = board().accelerometerState;
b.accelerometer.setSampleRange(range);
}
}
namespace pxsim {
interface AccelerometerSample {
x: number;
y: number;
z: number;
}
interface ShakeHistory {
x: boolean;
y: boolean;
z: boolean;
count: number;
shaken: number;
timer: number;
}
/**
* Co-ordinate systems that can be used.
* RAW: Unaltered data. Data will be returned directly from the accelerometer.
*
* SIMPLE_CARTESIAN: Data will be returned based on an easy to understand alignment, consistent with the cartesian system taught in schools.
* When held upright, facing the user:
*
* /
* +--------------------+ z
* | |
* | ..... |
* | * ..... * |
* ^ | ..... |
* | | |
* y +--------------------+ x-->
*
*
* NORTH_EAST_DOWN: Data will be returned based on the industry convention of the North East Down (NED) system.
* When held upright, facing the user:
*
* z
* +--------------------+ /
* | |
* | ..... |
* | * ..... * |
* ^ | ..... |
* | | |
* x +--------------------+ y-->
*
*/
export enum MicroBitCoordinateSystem {
RAW,
SIMPLE_CARTESIAN,
NORTH_EAST_DOWN
}
export class Accelerometer {
private sigma: number = 0; // the number of ticks that the instantaneous gesture has been stable.
private lastGesture: number = 0; // the last, stable gesture recorded.
private currentGesture: number = 0 // the instantaneous, unfiltered gesture detected.
private sample: AccelerometerSample = { x: 0, y: 0, z: -1023 }
private shake: ShakeHistory = { x: false, y: false, z: false, count: 0, shaken: 0, timer: 0 }; // State information needed to detect shake events.
private pitch: number;
private roll: number;
private id: number;
public isActive = false;
public sampleRange = 2;
constructor(public runtime: Runtime) {
this.id = DAL.MICROBIT_ID_ACCELEROMETER;
}
public setSampleRange(range: number) {
this.activate();
this.sampleRange = Math.max(1, Math.min(8, range));
}
public activate() {
if (!this.isActive) {
this.isActive = true;
this.runtime.queueDisplayUpdate();
}
}
/**
* Reads the acceleration data from the accelerometer, and stores it in our buffer.
* This is called by the tick() member function, if the interrupt is set!
*/
public update(x: number, y: number, z: number) {
// read MSB values...
this.sample.x = Math.floor(x);
this.sample.y = Math.floor(y);
this.sample.z = Math.floor(z);
// Update gesture tracking
this.updateGesture();
// Indicate that a new sample is available
board().bus.queue(this.id, DAL.MICROBIT_ACCELEROMETER_EVT_DATA_UPDATE)
}
public instantaneousAccelerationSquared() {
// Use pythagoras theorem to determine the combined force acting on the device.
return this.sample.x * this.sample.x + this.sample.y * this.sample.y + this.sample.z * this.sample.z;
}
/**
* Service function. Determines the best guess posture of the device based on instantaneous data.
* This makes no use of historic data (except for shake), and forms this input to the filter implemented in updateGesture().
*
* @return A best guess of the current posture of the device, based on instantaneous data.
*/
private instantaneousPosture(): number {
let force = this.instantaneousAccelerationSquared();
let shakeDetected = false;
// Test for shake events.
// We detect a shake by measuring zero crossings in each axis. In other words, if we see a strong acceleration to the left followed by
// a string acceleration to the right, then we can infer a shake. Similarly, we can do this for each acxis (left/right, up/down, in/out).
//
// If we see enough zero crossings in succession (MICROBIT_ACCELEROMETER_SHAKE_COUNT_THRESHOLD), then we decide that the device
// has been shaken.
if ((this.getX() < -DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && this.shake.x) || (this.getX() > DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && !this.shake.x)) {
shakeDetected = true;
this.shake.x = !this.shake.x;
}
if ((this.getY() < -DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && this.shake.y) || (this.getY() > DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && !this.shake.y)) {
shakeDetected = true;
this.shake.y = !this.shake.y;
}
if ((this.getZ() < -DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && this.shake.z) || (this.getZ() > DAL.MICROBIT_ACCELEROMETER_SHAKE_TOLERANCE && !this.shake.z)) {
shakeDetected = true;
this.shake.z = !this.shake.z;
}
if (shakeDetected && this.shake.count < DAL.MICROBIT_ACCELEROMETER_SHAKE_COUNT_THRESHOLD && ++this.shake.count == DAL.MICROBIT_ACCELEROMETER_SHAKE_COUNT_THRESHOLD)
this.shake.shaken = 1;
if (++this.shake.timer >= DAL.MICROBIT_ACCELEROMETER_SHAKE_DAMPING) {
this.shake.timer = 0;
if (this.shake.count > 0) {
if (--this.shake.count == 0)
this.shake.shaken = 0;
}
}
if (this.shake.shaken)
return DAL.MICROBIT_ACCELEROMETER_EVT_SHAKE;
let sq = (n: number) => n * n
if (force < sq(DAL.MICROBIT_ACCELEROMETER_FREEFALL_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_FREEFALL;
if (force > sq(DAL.MICROBIT_ACCELEROMETER_3G_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_3G;
if (force > sq(DAL.MICROBIT_ACCELEROMETER_6G_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_6G;
if (force > sq(DAL.MICROBIT_ACCELEROMETER_8G_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_8G;
// Determine our posture.
if (this.getX() < (-1000 + DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_LEFT;
if (this.getX() > (1000 - DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_RIGHT;
if (this.getY() < (-1000 + DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_DOWN;
if (this.getY() > (1000 - DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_TILT_UP;
if (this.getZ() < (-1000 + DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_FACE_UP;
if (this.getZ() > (1000 - DAL.MICROBIT_ACCELEROMETER_TILT_TOLERANCE))
return DAL.MICROBIT_ACCELEROMETER_EVT_FACE_DOWN;
return 0;
}
updateGesture() {
// Determine what it looks like we're doing based on the latest sample...
let g = this.instantaneousPosture();
// Perform some low pass filtering to reduce jitter from any detected effects
if (g == this.currentGesture) {
if (this.sigma < DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING)
this.sigma++;
}
else {
this.currentGesture = g;
this.sigma = 0;
}
// If we've reached threshold, update our record and raise the relevant event...
if (this.currentGesture != this.lastGesture && this.sigma >= DAL.MICROBIT_ACCELEROMETER_GESTURE_DAMPING) {
this.lastGesture = this.currentGesture;
board().bus.queue(DAL.MICROBIT_ID_GESTURE, this.lastGesture);
}
}
/**
* Reads the X axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.
* @return The force measured in the X axis, in milli-g.
*
* Example:
* @code
* uBit.accelerometer.getX();
* uBit.accelerometer.getX(RAW);
* @endcode
*/
public getX(system: MicroBitCoordinateSystem = MicroBitCoordinateSystem.SIMPLE_CARTESIAN): number {
this.activate();
switch (system) {
case MicroBitCoordinateSystem.SIMPLE_CARTESIAN:
return -this.sample.x;
case MicroBitCoordinateSystem.NORTH_EAST_DOWN:
return this.sample.y;
//case MicroBitCoordinateSystem.SIMPLE_CARTESIAN.RAW:
default:
return this.sample.x;
}
}
/**
* Reads the Y axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.
* @return The force measured in the Y axis, in milli-g.
*
* Example:
* @code
* uBit.accelerometer.getY();
* uBit.accelerometer.getY(RAW);
* @endcode
*/
public getY(system: MicroBitCoordinateSystem = MicroBitCoordinateSystem.SIMPLE_CARTESIAN): number {
this.activate();
switch (system) {
case MicroBitCoordinateSystem.SIMPLE_CARTESIAN:
return -this.sample.y;
case MicroBitCoordinateSystem.NORTH_EAST_DOWN:
return -this.sample.x;
//case RAW:
default:
return this.sample.y;
}
}
/**
* Reads the Z axis value of the latest update from the accelerometer.
* @param system The coordinate system to use. By default, a simple cartesian system is provided.
* @return The force measured in the Z axis, in milli-g.
*
* Example:
* @code
* uBit.accelerometer.getZ();
* uBit.accelerometer.getZ(RAW);
* @endcode
*/
public getZ(system: MicroBitCoordinateSystem = MicroBitCoordinateSystem.SIMPLE_CARTESIAN): number {
this.activate();
switch (system) {
case MicroBitCoordinateSystem.NORTH_EAST_DOWN:
return -this.sample.z;
//case MicroBitCoordinateSystem.SIMPLE_CARTESIAN:
//case MicroBitCoordinateSystem.RAW:
default:
return this.sample.z;
}
}
/**
* Provides a rotation compensated pitch of the device, based on the latest update from the accelerometer.
* @return The pitch of the device, in degrees.
*
* Example:
* @code
* uBit.accelerometer.getPitch();
* @endcode
*/
public getPitch(): number {
this.activate();
return Math.floor((360 * this.getPitchRadians()) / (2 * Math.PI));
}
getPitchRadians(): number {
this.recalculatePitchRoll();
return this.pitch;
}
/**
* Provides a rotation compensated roll of the device, based on the latest update from the accelerometer.
* @return The roll of the device, in degrees.
*
* Example:
* @code
* uBit.accelerometer.getRoll();
* @endcode
*/
public getRoll(): number {
this.activate();
return Math.floor((360 * this.getRollRadians()) / (2 * Math.PI));
}
getRollRadians(): number {
this.recalculatePitchRoll();
return this.roll;
}
/**
* Recalculate roll and pitch values for the current sample.
* We only do this at most once per sample, as the necessary trigonemteric functions are rather
* heavyweight for a CPU without a floating point unit...
*/
recalculatePitchRoll() {
let x = this.getX(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let y = this.getY(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
let z = this.getZ(MicroBitCoordinateSystem.NORTH_EAST_DOWN);
this.roll = Math.atan2(y, z);
this.pitch = Math.atan(-x / (y * Math.sin(this.roll) + z * Math.cos(this.roll)));
}
}
export class AccelerometerState {
accelerometer: Accelerometer;
useShake = false;
constructor(runtime: Runtime) {
this.accelerometer = new Accelerometer(runtime);
}
}
}

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namespace pxsim.input {
export function onButtonPressed(button: number, handler: RefAction): void {
let b = board().buttonPairState;
if (button == DAL.MICROBIT_ID_BUTTON_AB && !b.usesButtonAB) {
b.usesButtonAB = true;
runtime.queueDisplayUpdate();
}
pxt.registerWithDal(button, DAL.MICROBIT_BUTTON_EVT_CLICK, handler);
}
export function buttonIsPressed(button: number): boolean {
let b = board().buttonPairState;
if (button == DAL.MICROBIT_ID_BUTTON_AB && !b.usesButtonAB) {
b.usesButtonAB = true;
runtime.queueDisplayUpdate();
}
if (button == DAL.MICROBIT_ID_BUTTON_A) return b.aBtn.pressed;
if (button == DAL.MICROBIT_ID_BUTTON_B) return b.bBtn.pressed;
return b.abBtn.pressed || (b.aBtn.pressed && b.bBtn.pressed);
}
}
namespace pxsim {
export class Button {
constructor(public id: number) { }
pressed: boolean;
}
export class ButtonPairState {
usesButtonAB: boolean = false;
aBtn: Button;
bBtn: Button;
abBtn: Button;
constructor() {
this.aBtn = new Button(DAL.MICROBIT_ID_BUTTON_A);
this.bBtn = new Button(DAL.MICROBIT_ID_BUTTON_B);
this.abBtn = new Button(DAL.MICROBIT_ID_BUTTON_AB);
}
}
}

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namespace pxsim.input {
export function compassHeading(): number {
let b = board().compassState;
if (!b.usesHeading) {
b.usesHeading = true;
runtime.queueDisplayUpdate();
}
return b.heading;
}
export function magneticForce(): number {
// TODO
return 0;
}
}
namespace pxsim {
export class CompassState {
usesHeading = false;
heading = 90;
}
}

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namespace pxsim.input {
export function onPinPressed(pinId: number, handler: RefAction) {
let pin = getPin(pinId);
if (!pin) return;
pin.isTouched();
pxt.registerWithDal(pin.id, DAL.MICROBIT_BUTTON_EVT_CLICK, handler);
}
export function onPinReleased(pinId: number, handler: RefAction) {
let pin = getPin(pinId);
if (!pin) return;
pin.isTouched();
pxt.registerWithDal(pin.id, DAL.MICROBIT_BUTTON_EVT_UP, handler);
}
export function pinIsPressed(pinId: number): boolean {
let pin = getPin(pinId);
if (!pin) return false;
return pin.isTouched();
}
}
namespace pxsim {
export function getPin(id: number) {
return board().edgeConnectorState.getPin(id);
}
export enum PinFlags {
Unused = 0,
Digital = 0x0001,
Analog = 0x0002,
Input = 0x0004,
Output = 0x0008,
Touch = 0x0010
}
export class Pin {
constructor(public id: number) { }
touched = false;
value = 0;
period = 0;
mode = PinFlags.Unused;
pitch = false;
pull = 0; // PullDown
isTouched(): boolean {
this.mode = PinFlags.Touch;
return this.touched;
}
}
export class EdgeConnectorState {
pins: Pin[];
constructor() {
this.pins = [
new Pin(DAL.MICROBIT_ID_IO_P0),
new Pin(DAL.MICROBIT_ID_IO_P1),
new Pin(DAL.MICROBIT_ID_IO_P2),
new Pin(DAL.MICROBIT_ID_IO_P3),
new Pin(DAL.MICROBIT_ID_IO_P4),
new Pin(DAL.MICROBIT_ID_IO_P5),
new Pin(DAL.MICROBIT_ID_IO_P6),
new Pin(DAL.MICROBIT_ID_IO_P7),
new Pin(DAL.MICROBIT_ID_IO_P8),
new Pin(DAL.MICROBIT_ID_IO_P9),
new Pin(DAL.MICROBIT_ID_IO_P10),
new Pin(DAL.MICROBIT_ID_IO_P11),
new Pin(DAL.MICROBIT_ID_IO_P12),
new Pin(DAL.MICROBIT_ID_IO_P13),
new Pin(DAL.MICROBIT_ID_IO_P14),
new Pin(DAL.MICROBIT_ID_IO_P15),
new Pin(DAL.MICROBIT_ID_IO_P16),
null,
null,
new Pin(DAL.MICROBIT_ID_IO_P19),
new Pin(DAL.MICROBIT_ID_IO_P20)
];
}
public getPin(id: number) {
return this.pins.filter(p => p && p.id == id)[0] || null
}
}
}
namespace pxsim.pins {
export function digitalReadPin(pinId: number): number {
let pin = getPin(pinId);
if (!pin) return;
pin.mode = PinFlags.Digital | PinFlags.Input;
return pin.value > 100 ? 1 : 0;
}
export function digitalWritePin(pinId: number, value: number) {
let pin = getPin(pinId);
if (!pin) return;
pin.mode = PinFlags.Digital | PinFlags.Output;
pin.value = value > 0 ? 1023 : 0;
runtime.queueDisplayUpdate();
}
export function setPull(pinId: number, pull: number) {
let pin = getPin(pinId);
if (!pin) return;
pin.pull = pull;
}
export function analogReadPin(pinId: number): number {
let pin = getPin(pinId);
if (!pin) return;
pin.mode = PinFlags.Analog | PinFlags.Input;
return pin.value || 0;
}
export function analogWritePin(pinId: number, value: number) {
let pin = getPin(pinId);
if (!pin) return;
pin.mode = PinFlags.Analog | PinFlags.Output;
pin.value = value ? 1 : 0;
runtime.queueDisplayUpdate();
}
export function analogSetPeriod(pinId: number, micros: number) {
let pin = getPin(pinId);
if (!pin) return;
pin.mode = PinFlags.Analog | PinFlags.Output;
pin.period = micros;
runtime.queueDisplayUpdate();
}
export function servoWritePin(pinId: number, value: number) {
analogSetPeriod(pinId, 20000);
// TODO
}
export function servoSetPulse(pinId: number, micros: number) {
let pin = getPin(pinId);
if (!pin) return;
// TODO
}
export function analogSetPitchPin(pinId: number) {
let pin = getPin(pinId);
if (!pin) return;
board().edgeConnectorState.pins.filter(p => !!p).forEach(p => p.pitch = false);
pin.pitch = true;
}
export function analogPitch(frequency: number, ms: number) {
// update analog output
let pins = board().edgeConnectorState.pins;
let pin = pins.filter(pin => !!pin && pin.pitch)[0] || pins[0];
pin.mode = PinFlags.Analog | PinFlags.Output;
if (frequency <= 0) {
pin.value = 0;
pin.period = 0;
} else {
pin.value = 512;
pin.period = 1000000 / frequency;
}
runtime.queueDisplayUpdate();
let cb = getResume();
AudioContextManager.tone(frequency, 1);
if (ms <= 0) cb();
else {
setTimeout(() => {
AudioContextManager.stop();
pin.value = 0;
pin.period = 0;
pin.mode = PinFlags.Unused;
runtime.queueDisplayUpdate();
cb()
}, ms);
}
}
}

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namespace pxsim {
export enum DisplayMode {
bw,
greyscale
}
export class LedMatrixState {
image = createInternalImage(5);
brigthness = 255;
displayMode = DisplayMode.bw;
font: Image = createFont();
animationQ: AnimationQueue;
constructor(runtime: Runtime) {
this.animationQ = new AnimationQueue(runtime);
}
}
export class Image extends RefObject {
public static height: number = 5;
public width: number;
public data: number[];
constructor(width: number, data: number[]) {
super();
this.width = width;
this.data = data;
}
public print() {
console.log(`Image id:${this.id} refs:${this.refcnt} size:${this.width}x${Image.height}`)
}
public get(x: number, y: number): number {
if (x < 0 || x >= this.width || y < 0 || y >= 5) return 0;
return this.data[y * this.width + x];
}
public set(x: number, y: number, v: number) {
if (x < 0 || x >= this.width || y < 0 || y >= 5) return;
this.data[y * this.width + x] = Math.max(0, Math.min(255, v));
}
public copyTo(xSrcIndex: number, length: number, target: Image, xTargetIndex: number): void {
for (let x = 0; x < length; x++) {
for (let y = 0; y < 5; y++) {
let value = this.get(xSrcIndex + x, y);
target.set(xTargetIndex + x, y, value);
}
}
}
public shiftLeft(cols: number) {
for (let x = 0; x < this.width; ++x)
for (let y = 0; y < 5; ++y)
this.set(x, y, x < this.width - cols ? this.get(x + cols, y) : 0);
}
public shiftRight(cols: number) {
for (let x = this.width - 1; x <= 0; --x)
for (let y = 0; y < 5; ++y)
this.set(x, y, x > cols ? this.get(x - cols, y) : 0);
}
public clear(): void {
for (let i = 0; i < this.data.length; ++i)
this.data[i] = 0;
}
}
export function createInternalImage(width: number): Image {
let img = createImage(width)
pxsim.noLeakTracking(img)
return img
}
export function createImage(width: number): Image {
return new Image(width, new Array(width * 5));
}
export function createImageFromBuffer(data: number[]): Image {
return new Image(data.length / 5, data);
}
export function createImageFromString(text: string): Image {
let font = board().ledMatrixState.font;
let w = font.width;
let sprite = createInternalImage(6 * text.length - 1);
let k = 0;
for (let i = 0; i < text.length; i++) {
let charCode = text.charCodeAt(i);
let charStart = (charCode - 32) * 5;
if (charStart < 0 || charStart + 5 > w) {
charCode = " ".charCodeAt(0);
charStart = (charCode - 32) * 5;
}
font.copyTo(charStart, 5, sprite, k);
k = k + 5;
if (i < text.length - 1) {
k = k + 1;
}
}
return sprite;
}
export function createFont(): Image {
const data = [0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x8, 0x8, 0x0, 0x8, 0xa, 0x4a, 0x40, 0x0, 0x0, 0xa, 0x5f, 0xea, 0x5f, 0xea, 0xe, 0xd9, 0x2e, 0xd3, 0x6e, 0x19, 0x32, 0x44, 0x89, 0x33, 0xc, 0x92, 0x4c, 0x92, 0x4d, 0x8, 0x8, 0x0, 0x0, 0x0, 0x4, 0x88, 0x8, 0x8, 0x4, 0x8, 0x4, 0x84, 0x84, 0x88, 0x0, 0xa, 0x44, 0x8a, 0x40, 0x0, 0x4, 0x8e, 0xc4, 0x80, 0x0, 0x0, 0x0, 0x4, 0x88, 0x0, 0x0, 0xe, 0xc0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x1, 0x22, 0x44, 0x88, 0x10, 0xc, 0x92, 0x52, 0x52, 0x4c, 0x4, 0x8c, 0x84, 0x84, 0x8e, 0x1c, 0x82, 0x4c, 0x90, 0x1e, 0x1e, 0xc2, 0x44, 0x92, 0x4c, 0x6, 0xca, 0x52, 0x5f, 0xe2, 0x1f, 0xf0, 0x1e, 0xc1, 0x3e, 0x2, 0x44, 0x8e, 0xd1, 0x2e, 0x1f, 0xe2, 0x44, 0x88, 0x10, 0xe, 0xd1, 0x2e, 0xd1, 0x2e, 0xe, 0xd1, 0x2e, 0xc4, 0x88, 0x0, 0x8, 0x0, 0x8, 0x0, 0x0, 0x4, 0x80, 0x4, 0x88, 0x2, 0x44, 0x88, 0x4, 0x82, 0x0, 0xe, 0xc0, 0xe, 0xc0, 0x8, 0x4, 0x82, 0x44, 0x88, 0xe, 0xd1, 0x26, 0xc0, 0x4, 0xe, 0xd1, 0x35, 0xb3, 0x6c, 0xc, 0x92, 0x5e, 0xd2, 0x52, 0x1c, 0x92, 0x5c, 0x92, 0x5c, 0xe, 0xd0, 0x10, 0x10, 0xe, 0x1c, 0x92, 0x52, 0x52, 0x5c, 0x1e, 0xd0, 0x1c, 0x90, 0x1e, 0x1e, 0xd0, 0x1c, 0x90, 0x10, 0xe, 0xd0, 0x13, 0x71, 0x2e, 0x12, 0x52, 0x5e, 0xd2, 0x52, 0x1c, 0x88, 0x8, 0x8, 0x1c, 0x1f, 0xe2, 0x42, 0x52, 0x4c, 0x12, 0x54, 0x98, 0x14, 0x92, 0x10, 0x10, 0x10, 0x10, 0x1e, 0x11, 0x3b, 0x75, 0xb1, 0x31, 0x11, 0x39, 0x35, 0xb3, 0x71, 0xc, 0x92, 0x52, 0x52, 0x4c, 0x1c, 0x92, 0x5c, 0x90, 0x10, 0xc, 0x92, 0x52, 0x4c, 0x86, 0x1c, 0x92, 0x5c, 0x92, 0x51, 0xe, 0xd0, 0xc, 0x82, 0x5c, 0x1f, 0xe4, 0x84, 0x84, 0x84, 0x12, 0x52, 0x52, 0x52, 0x4c, 0x11, 0x31, 0x31, 0x2a, 0x44, 0x11, 0x31, 0x35, 0xbb, 0x71, 0x12, 0x52, 0x4c, 0x92, 0x52, 0x11, 0x2a, 0x44, 0x84, 0x84, 0x1e, 0xc4, 0x88, 0x10, 0x1e, 0xe, 0xc8, 0x8, 0x8, 0xe, 0x10, 0x8, 0x4, 0x82, 0x41, 0xe, 0xc2, 0x42, 0x42, 0x4e, 0x4, 0x8a, 0x40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1f, 0x8, 0x4, 0x80, 0x0, 0x0, 0x0, 0xe, 0xd2, 0x52, 0x4f, 0x10, 0x10, 0x1c, 0x92, 0x5c, 0x0, 0xe, 0xd0, 0x10, 0xe, 0x2, 0x42, 0x4e, 0xd2, 0x4e, 0xc, 0x92, 0x5c, 0x90, 0xe, 0x6, 0xc8, 0x1c, 0x88, 0x8, 0xe, 0xd2, 0x4e, 0xc2, 0x4c, 0x10, 0x10, 0x1c, 0x92, 0x52, 0x8, 0x0, 0x8, 0x8, 0x8, 0x2, 0x40, 0x2, 0x42, 0x4c, 0x10, 0x14, 0x98, 0x14, 0x92, 0x8, 0x8, 0x8, 0x8, 0x6, 0x0, 0x1b, 0x75, 0xb1, 0x31, 0x0, 0x1c, 0x92, 0x52, 0x52, 0x0, 0xc, 0x92, 0x52, 0x4c, 0x0, 0x1c, 0x92, 0x5c, 0x90, 0x0, 0xe, 0xd2, 0x4e, 0xc2, 0x0, 0xe, 0xd0, 0x10, 0x10, 0x0, 0x6, 0xc8, 0x4, 0x98, 0x8, 0x8, 0xe, 0xc8, 0x7, 0x0, 0x12, 0x52, 0x52, 0x4f, 0x0, 0x11, 0x31, 0x2a, 0x44, 0x0, 0x11, 0x31, 0x35, 0xbb, 0x0, 0x12, 0x4c, 0x8c, 0x92, 0x0, 0x11, 0x2a, 0x44, 0x98, 0x0, 0x1e, 0xc4, 0x88, 0x1e, 0x6, 0xc4, 0x8c, 0x84, 0x86, 0x8, 0x8, 0x8, 0x8, 0x8, 0x18, 0x8, 0xc, 0x88, 0x18, 0x0, 0x0, 0xc, 0x83, 0x60];
let nb = data.length;
let n = nb / 5;
let font = createInternalImage(nb);
for (let c = 0; c < n; c++) {
for (let row = 0; row < 5; row++) {
let char = data[c * 5 + row];
for (let col = 0; col < 5; col++) {
if ((char & (1 << col)) != 0)
font.set((c * 5 + 4) - col, row, 255);
}
}
}
return font;
}
export interface AnimationOptions {
interval: number;
// false means last frame
frame: () => boolean;
whenDone?: (cancelled: boolean) => void;
}
export class AnimationQueue {
private queue: AnimationOptions[] = [];
private process: () => void;
constructor(private runtime: Runtime) {
this.process = () => {
let top = this.queue[0]
if (!top) return
if (this.runtime.dead) return
runtime = this.runtime
let res = top.frame()
runtime.queueDisplayUpdate()
runtime.maybeUpdateDisplay()
if (res === false) {
this.queue.shift();
// if there is already something in the queue, start processing
if (this.queue[0])
setTimeout(this.process, this.queue[0].interval)
// this may push additional stuff
top.whenDone(false);
} else {
setTimeout(this.process, top.interval)
}
}
}
public cancelAll() {
let q = this.queue
this.queue = []
for (let a of q) {
a.whenDone(true)
}
}
public cancelCurrent() {
let top = this.queue[0]
if (top) {
this.queue.shift();
top.whenDone(true);
}
}
public enqueue(anim: AnimationOptions) {
if (!anim.whenDone) anim.whenDone = () => { };
this.queue.push(anim)
// we start processing when the queue goes from 0 to 1
if (this.queue.length == 1)
this.process()
}
public executeAsync(anim: AnimationOptions) {
U.assert(!anim.whenDone)
return new Promise<boolean>((resolve, reject) => {
anim.whenDone = resolve
this.enqueue(anim)
})
}
}
}
namespace pxsim.images {
export function createImage(img: Image) {
return img
}
export function createBigImage(img: Image) {
return img
}
}
namespace pxsim.ImageMethods {
export function showImage(leds: Image, offset: number) {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
leds.copyTo(offset, 5, board().ledMatrixState.image, 0)
runtime.queueDisplayUpdate()
}
export function plotImage(leds: Image, offset: number): void {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
leds.copyTo(offset, 5, board().ledMatrixState.image, 0)
runtime.queueDisplayUpdate()
}
export function height(leds: Image): number {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
return Image.height;
}
export function width(leds: Image): number {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
return leds.width;
}
export function plotFrame(leds: Image, frame: number) {
ImageMethods.plotImage(leds, frame * Image.height);
}
export function showFrame(leds: Image, frame: number) {
ImageMethods.showImage(leds, frame * Image.height);
}
export function pixel(leds: Image, x: number, y: number): number {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
return leds.get(x, y);
}
export function setPixel(leds: Image, x: number, y: number, v: number) {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
leds.set(x, y, v);
}
export function clear(leds: Image) {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
leds.clear();
}
export function setPixelBrightness(i: Image, x: number, y: number, b: number) {
if (!i) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
i.set(x, y, b);
}
export function pixelBrightness(i: Image, x: number, y: number): number {
if (!i) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
return i.get(x, y);
}
export function scrollImage(leds: Image, stride: number, interval: number): void {
if (!leds) panic(PanicCode.MICROBIT_NULL_DEREFERENCE);
if (stride == 0) stride = 1;
let cb = getResume();
let off = stride > 0 ? 0 : leds.width - 1;
let display = board().ledMatrixState.image;
board().ledMatrixState.animationQ.enqueue({
interval: interval,
frame: () => {
//TODO: support right to left.
if (off >= leds.width || off < 0) return false;
stride > 0 ? display.shiftLeft(stride) : display.shiftRight(-stride);
let c = Math.min(stride, leds.width - off);
leds.copyTo(off, c, display, 5 - stride)
off += stride;
return true;
},
whenDone: cb
})
}
}
namespace pxsim.basic {
export function showNumber(x: number, interval: number) {
if (interval < 0) return;
let leds = createImageFromString(x.toString());
if (x < 0 || x >= 10) ImageMethods.scrollImage(leds, 1, interval);
else showLeds(leds, interval * 5);
}
export function showString(s: string, interval: number) {
if (interval < 0) return;
if (s.length == 0) {
clearScreen();
pause(interval * 5);
} else {
if (s.length == 1) showLeds(createImageFromString(s + " "), interval * 5)
else ImageMethods.scrollImage(createImageFromString(s + " "), 1, interval);
}
}
export function showLeds(leds: Image, delay: number): void {
showAnimation(leds, delay);
}
export function clearScreen() {
board().ledMatrixState.image.clear();
runtime.queueDisplayUpdate()
}
export function showAnimation(leds: Image, interval: number): void {
ImageMethods.scrollImage(leds, 5, interval);
}
export function plotLeds(leds: Image): void {
ImageMethods.plotImage(leds, 0);
}
}
namespace pxsim.led {
export function plot(x: number, y: number) {
board().ledMatrixState.image.set(x, y, 255);
runtime.queueDisplayUpdate()
}
export function unplot(x: number, y: number) {
board().ledMatrixState.image.set(x, y, 0);
runtime.queueDisplayUpdate()
}
export function point(x: number, y: number): boolean {
return !!board().ledMatrixState.image.get(x, y);
}
export function brightness(): number {
return board().ledMatrixState.brigthness;
}
export function setBrightness(value: number): void {
board().ledMatrixState.brigthness = value;
runtime.queueDisplayUpdate()
}
export function stopAnimation(): void {
board().ledMatrixState.animationQ.cancelAll();
}
export function setDisplayMode(mode: DisplayMode): void {
board().ledMatrixState.displayMode = mode;
runtime.queueDisplayUpdate()
}
export function screenshot(): Image {
let img = createImage(5)
board().ledMatrixState.image.copyTo(0, 5, img, 0);
return img;
}
}

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namespace pxsim {
export class LightSensorState {
usesLightLevel = false;
lightLevel = 128;
}
}
namespace pxsim.input {
export function lightLevel(): number {
let b = board().lightSensorState;
if (!b.usesLightLevel) {
b.usesLightLevel = true;
runtime.queueDisplayUpdate();
}
return b.lightLevel;
}
}

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namespace pxsim {
/**
* Error codes used in the micro:bit runtime.
*/
export enum PanicCode {
// PANIC Codes. These are not return codes, but are terminal conditions.
// These induce a panic operation, where all code stops executing, and a panic state is
// entered where the panic code is diplayed.
// Out out memory error. Heap storage was requested, but is not available.
MICROBIT_OOM = 20,
// Corruption detected in the micro:bit heap space
MICROBIT_HEAP_ERROR = 30,
// Dereference of a NULL pointer through the ManagedType class,
MICROBIT_NULL_DEREFERENCE = 40,
};
export function panic(code: number) {
console.log("PANIC:", code)
led.setBrightness(255);
let img = board().ledMatrixState.image;
img.clear();
img.set(0, 4, 255);
img.set(1, 3, 255);
img.set(2, 3, 255);
img.set(3, 3, 255);
img.set(4, 4, 255);
img.set(0, 0, 255);
img.set(1, 0, 255);
img.set(0, 1, 255);
img.set(1, 1, 255);
img.set(3, 0, 255);
img.set(4, 0, 255);
img.set(3, 1, 255);
img.set(4, 1, 255);
runtime.updateDisplay();
throw new Error("PANIC " + code)
}
export namespace AudioContextManager {
let _context: any; // AudioContext
let _vco: any; // OscillatorNode;
let _vca: any; // GainNode;
function context(): any {
if (!_context) _context = freshContext();
return _context;
}
function freshContext(): any {
(<any>window).AudioContext = (<any>window).AudioContext || (<any>window).webkitAudioContext;
if ((<any>window).AudioContext) {
try {
// this call my crash.
// SyntaxError: audio resources unavailable for AudioContext construction
return new (<any>window).AudioContext();
} catch (e) { }
}
return undefined;
}
export function stop() {
if (_vca) _vca.gain.value = 0;
}
export function tone(frequency: number, gain: number) {
if (frequency <= 0) return;
let ctx = context();
if (!ctx) return;
gain = Math.max(0, Math.min(1, gain));
if (!_vco) {
try {
_vco = ctx.createOscillator();
_vca = ctx.createGain();
_vco.connect(_vca);
_vca.connect(ctx.destination);
_vca.gain.value = gain;
_vco.start(0);
} catch (e) {
_vco = undefined;
_vca = undefined;
return;
}
}
_vco.frequency.value = frequency;
_vca.gain.value = gain;
}
}
export interface RuntimeOptions {
theme: string;
}
export class EventBus {
private queues: Map<EventQueue<number>> = {};
constructor(private runtime: Runtime) { }
listen(id: number, evid: number, handler: RefAction) {
let k = id + ":" + evid;
let queue = this.queues[k];
if (!queue) queue = this.queues[k] = new EventQueue<number>(this.runtime);
queue.handler = handler;
}
queue(id: number, evid: number, value: number = 0) {
let k = id + ":" + evid;
let queue = this.queues[k];
if (queue) queue.push(value);
}
}
}
namespace pxsim.basic {
export var pause = thread.pause;
export var forever = thread.forever;
}
namespace pxsim.control {
export var inBackground = thread.runInBackground;
export function reset() {
U.userError("reset not implemented in simulator yet")
}
export function waitMicros(micros: number) {
// TODO
}
export function deviceName(): string {
let b = board();
return b && b.id
? b.id.slice(0, 4)
: "abcd";
}
export function deviceSerialNumber(): number {
let b = board();
return parseInt(b && b.id
? b.id.slice(1)
: "42");
}
export function onEvent(id: number, evid: number, handler: RefAction) {
pxt.registerWithDal(id, evid, handler)
}
export function raiseEvent(id: number, evid: number, mode: number) {
// TODO mode?
board().bus.queue(id, evid)
}
}
namespace pxsim.pxt {
export function registerWithDal(id: number, evid: number, handler: RefAction) {
board().bus.listen(id, evid, handler);
}
}
namespace pxsim.input {
export function runningTime(): number {
return runtime.runningTime();
}
export function calibrate() {
}
}
namespace pxsim.pins {
export function onPulsed(name: number, pulse: number, body: RefAction) {
}
export function pulseDuration(): number {
return 0;
}
export function createBuffer(sz: number) {
return pxsim.BufferMethods.createBuffer(sz)
}
export function pulseIn(name: number, value: number, maxDuration: number): number {
let pin = getPin(name);
if (!pin) return 0;
return 5000;
}
export function spiWrite(value: number): number {
// TODO
return 0;
}
export function i2cReadBuffer(address: number, size: number, repeat?: boolean): RefBuffer {
// fake reading zeros
return createBuffer(size)
}
export function i2cWriteBuffer(address: number, buf: RefBuffer, repeat?: boolean): void {
// fake - noop
}
}
namespace pxsim.bluetooth {
export function startIOPinService(): void {
// TODO
}
export function startLEDService(): void {
// TODO
}
export function startTemperatureService(): void {
// TODO
}
export function startMagnetometerService(): void {
// TODO
}
export function startAccelerometerService(): void {
// TODO
}
export function startButtonService(): void {
// TODO
}
}

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namespace pxsim {
export function sendBufferAsm(buffer: Buffer, pin: DigitalPin) {
let b = board();
if (b) {
let np = b.neopixelState;
if (np) {
np.updateBuffer(buffer, pin);
runtime.queueDisplayUpdate();
}
}
}
}
namespace pxsim {
export enum NeoPixelMode {RGB, RGBW};
export type RGBW = [number, number, number, number];
function readNeoPixelBuffer(inBuffer: Uint8Array[], outColors: RGBW[], mode: NeoPixelMode) {
let buf = inBuffer;
let stride = mode === NeoPixelMode.RGBW ? 4 : 3;
let pixelCount = Math.floor(buf.length / stride);
for (let i = 0; i < pixelCount; i++) {
// NOTE: for whatever reason, NeoPixels pack GRB not RGB
let r = buf[i * stride + 1] as any as number
let g = buf[i * stride + 0] as any as number
let b = buf[i * stride + 2] as any as number
let w = 0;
if (stride === 4)
w = buf[i * stride + 3] as any as number
outColors[i] = [r, g, b, w]
}
}
export class NeoPixelState {
private buffers: {[pin: number]: Uint8Array[]} = {};
private colors: {[pin: number]: RGBW[]} = {};
private dirty: {[pin: number]: boolean} = {};
public updateBuffer(buffer: Buffer, pin: DigitalPin) {
//update buffers
let buf = <Uint8Array[]>(<any>buffer).data;
this.buffers[pin] = buf;
this.dirty[pin] = true;
}
public getColors(pin: number, mode: NeoPixelMode): RGBW[] {
let outColors = this.colors[pin] || (this.colors[pin] = []);
if (this.dirty[pin]) {
let buf = this.buffers[pin] || (this.buffers[pin] = []);
readNeoPixelBuffer(buf, outColors, mode);
this.dirty[pin] = false;
}
return outColors;
}
}
}

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namespace pxsim {
export interface PacketBuffer {
data: number[] | string;
rssi?: number;
}
export class RadioDatagram {
datagram: PacketBuffer[] = [];
lastReceived: PacketBuffer = {
data: [0, 0, 0, 0],
rssi: -1
};
constructor(private runtime: Runtime) {
}
queue(packet: PacketBuffer) {
if (this.datagram.length < 4) {
this.datagram.push(packet);
}
(<DalBoard>runtime.board).bus.queue(DAL.MICROBIT_ID_RADIO, DAL.MICROBIT_RADIO_EVT_DATAGRAM);
}
send(buffer: number[] | string) {
if (buffer instanceof String) buffer = buffer.slice(0, 32);
else buffer = buffer.slice(0, 8);
Runtime.postMessage(<SimulatorRadioPacketMessage>{
type: "radiopacket",
data: buffer
})
}
recv(): PacketBuffer {
let r = this.datagram.shift();
if (!r) r = {
data: [0, 0, 0, 0],
rssi: -1
};
return this.lastReceived = r;
}
}
export class RadioBus {
// uint8_t radioDefaultGroup = MICROBIT_RADIO_DEFAULT_GROUP;
groupId = 0; // todo
power = 0;
transmitSerialNumber = false;
datagram: RadioDatagram;
constructor(private runtime: Runtime) {
this.datagram = new RadioDatagram(runtime);
}
setGroup(id: number) {
this.groupId = id & 0xff; // byte only
}
setTransmitPower(power: number) {
this.power = Math.max(0, Math.min(7, power));
}
setTransmitSerialNumber(sn: boolean) {
this.transmitSerialNumber = !!sn;
}
broadcast(msg: number) {
Runtime.postMessage(<SimulatorEventBusMessage>{
type: "eventbus",
id: DAL.MES_BROADCAST_GENERAL_ID,
eventid: msg,
power: this.power,
group: this.groupId
})
}
}
export class RadioState {
bus: RadioBus;
constructor(runtime: Runtime) {
this.bus = new RadioBus(runtime);
}
public recievePacket(packet: SimulatorRadioPacketMessage) {
this.bus.datagram.queue({ data: packet.data, rssi: packet.rssi || 0 })
}
}
}
namespace pxsim.radio {
export function broadcastMessage(msg: number): void {
board().radioState.bus.broadcast(msg);
}
export function onBroadcastMessageReceived(msg: number, handler: RefAction): void {
pxt.registerWithDal(DAL.MES_BROADCAST_GENERAL_ID, msg, handler);
}
export function setGroup(id: number): void {
board().radioState.bus.setGroup(id);
}
export function setTransmitPower(power: number): void {
board().radioState.bus.setTransmitPower(power);
}
export function setTransmitSerialNumber(transmit: boolean): void {
board().radioState.bus.setTransmitSerialNumber(transmit);
}
export function sendNumber(value: number): void {
board().radioState.bus.datagram.send([value]);
}
export function sendString(msg: string): void {
board().radioState.bus.datagram.send(msg);
}
export function writeValueToSerial(): void {
let b = board();
let v = b.radioState.bus.datagram.recv().data[0];
b.writeSerial(`{v:${v}}`);
}
export function sendValue(name: string, value: number) {
board().radioState.bus.datagram.send([value]);
}
export function receiveNumber(): number {
let buffer = board().radioState.bus.datagram.recv().data;
if (buffer instanceof Array) return buffer[0];
return 0;
}
export function receiveString(): string {
let buffer = board().radioState.bus.datagram.recv().data;
if (typeof buffer === "string") return <string>buffer;
return "";
}
export function receivedNumberAt(index: number): number {
let buffer = board().radioState.bus.datagram.recv().data;
if (buffer instanceof Array) return buffer[index] || 0;
return 0;
}
export function receivedSignalStrength(): number {
return board().radioState.bus.datagram.lastReceived.rssi;
}
export function onDataReceived(handler: RefAction): void {
pxt.registerWithDal(DAL.MICROBIT_ID_RADIO, DAL.MICROBIT_RADIO_EVT_DATAGRAM, handler);
radio.receiveNumber();
}
}

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namespace pxsim {
export class SerialState {
serialIn: string[] = [];
public recieveData(data: string) {
this.serialIn.push();
}
readSerial() {
let v = this.serialIn.shift() || "";
return v;
}
serialOutBuffer: string = "";
writeSerial(s: string) {
for (let i = 0; i < s.length; ++i) {
let c = s[i];
this.serialOutBuffer += c;
if (c == "\n") {
Runtime.postMessage(<SimulatorSerialMessage>{
type: "serial",
data: this.serialOutBuffer,
id: runtime.id
})
this.serialOutBuffer = ""
break;
}
}
}
}
}
namespace pxsim.serial {
export function writeString(s: string) {
board().writeSerial(s);
}
export function readString(): string {
return board().serialState.readSerial();
}
export function readLine(): string {
return board().serialState.readSerial();
}
export function onDataReceived(delimiters: string, handler: RefAction) {
let b = board();
b.bus.listen(DAL.MICROBIT_ID_SERIAL, DAL.MICROBIT_SERIAL_EVT_DELIM_MATCH, handler);
}
export function redirect(tx: number, rx: number, rate: number) {
// TODO?
}
}

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namespace pxsim {
export class ThermometerState {
usesTemperature = false;
temperature = 21;
}
}
namespace pxsim.input {
export function temperature(): number {
let b = board();
if (!b.thermometerState.usesTemperature) {
b.thermometerState.usesTemperature = true;
runtime.queueDisplayUpdate();
}
return b.thermometerState.temperature;
}
}