pxt-calliope/sim/state/misc.ts

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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)
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) {
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pxtcore.registerWithDal(id, evid, handler)
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}
export function raiseEvent(id: number, evid: number, mode: number) {
// TODO mode?
board().bus.queue(id, evid)
}
}
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namespace pxsim.pxtcore {
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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
}
}