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Event superclass for Note and Sound

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This commit is contained in:
Miika Alonen
2023-08-21 18:46:07 +03:00
parent 0664625923
commit 6c93845a60
8 changed files with 278 additions and 147 deletions
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104
src/API.ts
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@ -1,4 +1,4 @@
import { Pitch, Chord, Rest, Event, cachedPattern } from "zifferjs";
import { Pitch, Chord, Rest, Event, cachedPattern, seededRandom } from "zifferjs";
import { MidiConnection } from "./IO/MidiConnection";
import { tryEvaluate } from "./Evaluator";
import { DrunkWalk } from "./Utils/Drunk";
@ -6,6 +6,7 @@ import { LRUCache } from "lru-cache";
import { scale } from "./Scales";
import { Editor } from "./main";
import { Sound } from "./Sound";
import { Note } from "./Note";
import {
samples,
initAudioOnFirstClick,
@ -68,6 +69,9 @@ export class UserAPI {
private variables: { [key: string]: any } = {};
private iterators: { [key: string]: any } = {};
private _drunk: DrunkWalk = new DrunkWalk(-100, 100, false);
public randomGen = Math.random;
public currentSeed: string|undefined = undefined;
public localSeeds = new Map<string, Function>();
MidiConnection: MidiConnection = new MidiConnection();
load: samples;
@ -105,6 +109,21 @@ export class UserAPI {
return this.app._mouseY;
};
public noteX = (): number => {
/**
* @returns The current x position scaled to 0-127 using screen width
*/
return Math.floor((this.app._mouseX / document.body.clientWidth) * 127);
};
public noteY = (): number => {
/**
* @returns The current y position scaled to 0-127 using screen height
*/
return Math.floor((this.app._mouseY / document.body.clientHeight) * 127);
};
// =============================================================
// Utility functions
// =============================================================
@ -179,9 +198,8 @@ export class UserAPI {
};
public note = (
note: number,
options: { [key: string]: number } = {}
): void => {
value: number = 60
): Note => {
/**
* Sends a MIDI note to the current MIDI output.
*
@ -189,10 +207,7 @@ export class UserAPI {
* @param options - an object containing options for that note
* { channel: 0, velocity: 100, duration: 0.5 }
*/
const channel = options.channel ? options.channel : 0;
const velocity = options.velocity ? options.velocity : 100;
const duration = options.duration ? options.duration : 0.5;
this.MidiConnection.sendMidiNote(note, channel, velocity, duration);
return new Note(value, this.app);
};
public sysex = (data: Array<number>): void => {
@ -261,27 +276,26 @@ export class UserAPI {
public zn = (
input: string,
options: { [key: string]: string | number } = {}
): Event => {
): Event|object => {
const pattern = cachedPattern(input, options);
//@ts-ignore
if (pattern.hasStarted()) {
const event = pattern.peek();
// Check if event is modified
const node = event!.modifiedEvent ? event!.modifiedEvent : event;
// Check if event is modified
const node = event.modifiedEvent ? event.modifiedEvent : event;
const channel = (options.channel ? options.channel : 0) as number;
const velocity = (options.velocity ? options.velocity : 100) as number;
const sustain = (options.sustain ? options.sustain : 0.5) as number;
if (node instanceof Pitch) {
if (node.bend) this.MidiConnection.sendPitchBend(node.bend, channel);
this.MidiConnection.sendMidiNote(
node.note!,
channel,
velocity,
sustain
);
if (node.bend) this.MidiConnection.sendPitchBend(8192, channel);
this.MidiConnection.sendMidiNote(
node.note!,
channel,
velocity,
sustain
);
if (node.bend) this.MidiConnection.sendPitchBend(8192, channel);
} else if (node instanceof Chord) {
node.pitches.forEach((pitch: Pitch) => {
if (pitch.bend)
@ -299,7 +313,7 @@ export class UserAPI {
}
// Remove old modified event
if (event!.modifiedEvent) event!.modifiedEvent = undefined;
if (event.modifiedEvent) event.modifiedEvent = undefined;
}
//@ts-ignore
return pattern.next();
@ -577,7 +591,7 @@ export class UserAPI {
*
* @param array - The array of values to pick from
*/
return array[Math.floor(Math.random() * array.length)];
return array[Math.floor(this.randomGen() * array.length)];
};
seqbeat = <T>(...array: T[]): T => {
@ -629,7 +643,7 @@ export class UserAPI {
* @param max - The maximum value of the random number
* @returns A random integer between min and max
*/
return Math.floor(Math.random() * (max - min + 1)) + min;
return Math.floor(this.randomGen() * (max - min + 1)) + min;
};
rand = (min: number, max: number): number => {
@ -640,11 +654,37 @@ export class UserAPI {
* @param max - The maximum value of the random number
* @returns A random float between min and max
*/
return Math.random() * (max - min) + min;
return this.randomGen() * (max - min) + min;
};
irand = this.randI
rI = this.randI;
r = this.rand;
seed = (seed: string | number): void => {
/**
* Seed the random numbers globally in UserAPI.
* @param seed - The seed to use
*/
if(typeof seed === "number") seed = seed.toString();
if(this.currentSeed!==seed) {
this.currentSeed = seed;
this.randomGen = seededRandom(seed);
}
}
localSeededRandom = (seed: string | number): Function => {
if(typeof seed === "number") seed = seed.toString();
if(this.localSeeds.has(seed)) return this.localSeeds.get(seed) as Function;
const newSeededRandom = seededRandom(seed)
this.localSeeds.set(seed,newSeededRandom);
return newSeededRandom;
}
clearLocalSeed = (seed: string | number | undefined = undefined): void => {
if(seed) this.localSeeds.delete(seed.toString());
this.localSeeds.clear();
}
// =============================================================
// Quantification functions
// =============================================================
@ -748,7 +788,7 @@ export class UserAPI {
*
* @returns True 10% of the time
*/
return Math.random() > 0.9;
return this.randomGen() > 0.9;
};
public sometimes = (): boolean => {
@ -757,7 +797,7 @@ export class UserAPI {
*
* @returns True 50% of the time
*/
return Math.random() > 0.5;
return this.randomGen() > 0.5;
};
public rarely = (): boolean => {
@ -766,7 +806,7 @@ export class UserAPI {
*
* @returns True 25% of the time
*/
return Math.random() > 0.75;
return this.randomGen() > 0.75;
};
public often = (): boolean => {
@ -775,7 +815,7 @@ export class UserAPI {
*
* @returns True 75% of the time
*/
return Math.random() > 0.25;
return this.randomGen() > 0.25;
};
public almostAlways = (): boolean => {
@ -784,7 +824,7 @@ export class UserAPI {
*
* @returns True 90% of the time
*/
return Math.random() > 0.1;
return this.randomGen() > 0.1;
};
public dice = (sides: number): number => {
@ -794,7 +834,7 @@ export class UserAPI {
* @param sides - The number of sides on the dice
* @returns The value of a dice roll with n sides
*/
return Math.floor(Math.random() * sides) + 1;
return Math.floor(this.randomGen() * sides) + 1;
};
// =============================================================
@ -920,7 +960,7 @@ export class UserAPI {
* @param p - The probability of returning true
* @returns True p% of the time
*/
return Math.random() * 100 < p;
return this.randomGen() * 100 < p;
};
toss = (): boolean => {
@ -934,7 +974,7 @@ export class UserAPI {
* @see almostAlways
* @see almostNever
*/
return Math.random() > 0.5;
return this.randomGen() > 0.5;
};
min = (...values: number[]): number => {
@ -1212,7 +1252,7 @@ export class UserAPI {
* @see sine
* @see noise
*/
return Math.random() * 2 - 1;
return this.randomGen() * 2 - 1;
};
// =============================================================