HoshinoKoji/psychojs
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added coherence support. shape of dots changed to circles.

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This commit is contained in:
lightest 2024-03-22 23:16:18 +00:00
parent ce639a11f0
commit 3ebd48eb70
2 changed files with 35 additions and 14 deletions
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9
src/test_experiment.js
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@ -6,7 +6,7 @@
// import { core, data, sound, util, visual } from "../out/psychojs-2024.1.0.js";
import { core, data, sound, util, visual } from "./index.js";
// import {StimInspector} from 'https://run.pavlovia.org/lgtst/stiminspector/StimInspector.js';
import {StimInspector} from 'https://run.pavlovia.org/lgtst/stiminspector/StimInspector.js';
// import {StimInspector} from '../stiminspector/StimInspector.js';
// import {PsyexpReader} from '../psyexpreader/PsyexpReader.js';
const { PsychoJS } = core;
@ -38,7 +38,7 @@ psychoJS.openWindow({
waitBlanking: true
});
// new StimInspector(psychoJS.window, { core, data, sound, util, visual });
new StimInspector(psychoJS.window, { core, data, sound, util, visual });
// schedule the experiment:
// psychoJS.schedule(psychoJS.gui.DlgFromDict({
@ -136,11 +136,11 @@ async function experimentInit() {
// tex: 'sin',
// mask: undefined,
// ori: 0,
// size: [256, 512],
// size: [512, 512],
// pos: [0, 0],
// units: "pix",
// depth: 0
// })
// }),
new visual.DotStim({
win : psychoJS.window,
name: 'dots',
@ -150,6 +150,7 @@ async function experimentInit() {
pos: [0, 0],
units: "pix",
depth: 0,
dotSize: 10,
dotLife: 0,
speed: 0.5,
fieldShape: "circle"

40
src/visual/DotStim.js
View File

@ -129,6 +129,7 @@ export class DotStim extends VisualStim
this._size_px = util.to_px(this.size, this.units, this.win);
this._dotsLife = new Float32Array(nDots);
this._dotsDir = new Float32Array(nDots);
// TODO: DEBUG.
// const s = new PIXI.Sprite(PIXI.Texture.WHITE);
@ -176,17 +177,25 @@ export class DotStim extends VisualStim
let i;
let dot;
let dotConfig;
const coherentDots = Math.round(this._coherence * this._nDots);
for (i = 0; i < this._nDots; i ++)
{
dot = new PIXI.Sprite(PIXI.Texture.WHITE);
// TODO: ensure this is an optimal way to do this.
dot = new PIXI.Graphics();
dot.beginFill(0xffffff);
dot.arc(0, 0, this._dotSize * 0.5, 0, Math.PI * 2);
dot.endFill();
dotConfig = this._configureDot();
dot.x = dotConfig.position.x;
dot.y = dotConfig.position.y;
dot.width = this._dotSize;
dot.height = this._dotSize;
this._pixi.addChild(dot);
this._dotsLife[ i ] = dotConfig.lifetime;
this._dotsDir[ i ] = this._dir;
if (i > coherentDots)
{
this._dotsDir[ i ] = Math.random() * 360;
}
}
}
@ -212,8 +221,8 @@ export class DotStim extends VisualStim
// Move dots.
if (this._noiseDots === "direction")
{
const x = Math.cos(this._dir * Math.PI / 180);
const y = Math.sin(this._dir * Math.PI / 180);
const x = Math.cos(this._dotsDir[ i ] * Math.PI / 180);
const y = Math.sin(this._dotsDir[ i ] * Math.PI / 180);
// TODO: ensure this is adequate conversion of speed.
const speed_px = util.to_px([ this._speed, this._speed ], this.units, this.win)[ 0 ];
@ -450,6 +459,12 @@ export class DotStim extends VisualStim
}
}
setCoherence(c = 1, log = false)
{
const coherence = Math.max(0, Math.min(1, c));
this._setAttribute("coherence", coherence, log);
}
/**
* Update the stimulus, if necessary.
*
@ -460,12 +475,17 @@ export class DotStim extends VisualStim
// Always update dots.
this._updateDots();
if (!this._needPixiUpdate)
{
return;
}
// if (!this._needUpdate)
// {
// return;
// }
this._needPixiUpdate = false;
// this._needUpdate = false;
// if (this._needPixiUpdate)
// {
// this._needPixiUpdate = false;
// }
this._pixi.zIndex = -this._depth;
this.opacity = this._opacity;