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+ Added ThrottleVisualize mode. #35

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+ Added ThrottleVisualize mode. #35

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6 changes: 5 additions & 1 deletion src/Config.js
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Original file line number Diff line number Diff line change
Expand Up @@ -210,6 +210,10 @@ module.exports = {
* {Number} Amount of frequencies in a world. It uses with say/listen commands
*/
worldFrequency : 10,
/**
* {Number} Number of milliseconds between two screen refreshes. Used only when ThrottleVisualize mode is enabled.
*/
THROTTLE_VISUALIZE_DELAY : 5000,
/**
* {Boolean} Turns on\off usage of IndexedDB for storing organisms population
* @constant
Expand Down Expand Up @@ -253,4 +257,4 @@ module.exports = {
* Plugins. Extends irma core by additional functionality
*/
plugins : ['Decay']
};
};
80 changes: 60 additions & 20 deletions src/irma/Canvas.js
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Original file line number Diff line number Diff line change
Expand Up @@ -9,23 +9,26 @@ const Config = require('./../Config');

class Canvas {
constructor() {
this._width = Config.WORLD_WIDTH;
this._height = Config.WORLD_HEIGHT;
this._canvasEl = this._createCanvas();
this._headerEl = this._createHeader();
this._ctx = this._canvasEl.getContext('2d');
this._imgData = this._ctx.createImageData(this._width, this._height);
this._data = this._imgData.data;
this._animate = this._onAnimate.bind(this);
this._visualize = true;
this._panZoom = null;
this._zoomObserver = null;
this._fullEl = this._createFullScreenBtn();
this._visualizeEl = this._createVisualizeBtn();
this._xDataOffs = 0;
this._yDataOffs = 0;
this._visibleWidth = Config.WORLD_WIDTH;
this._visibleHeight = Config.WORLD_HEIGHT;
this._width = Config.WORLD_WIDTH;
this._height = Config.WORLD_HEIGHT;
this._canvasEl = this._createCanvas();
this._headerEl = this._createHeader();
this._ctx = this._canvasEl.getContext('2d');
this._imgData = this._ctx.createImageData(this._width, this._height);
this._data = this._imgData.data;
this._animate = this._onAnimate.bind(this);
this._visualize = true;
this._panZoom = null;
this._zoomObserver = null;
this._fullEl = this._createFullScreenBtn();
this._visualizeEl = this._createVisualizeBtn();
this._throttledVisualizeEl = this._createThrottledVisualizeBtn();
this._xDataOffs = 0;
this._yDataOffs = 0;
this._visibleWidth = Config.WORLD_WIDTH;
this._visibleHeight = Config.WORLD_HEIGHT;
this._throttledVisualize = false;
this._throttledVisualizeCancel = null;

this._prepareDom();
this._initPanZoomLib();
Expand All @@ -41,11 +44,13 @@ class Canvas {
parentNode.removeChild(this._canvasEl);
parentNode.removeChild(this._fullEl);
parentNode.removeChild(this._visualizeEl);
parentNode.removeChild(this._throttledVisualizeEl);
parentNode.removeChild(this._headerEl);
this._headerEl = null;
this._canvasEl = null;
this._fullEl = null;
this._visualizeEl = null;
this._throttledVisualizeEl = null;
this._ctx = null;
this._imgData = null;
this._data = null;
Expand Down Expand Up @@ -176,6 +181,27 @@ class Canvas {
return el;
}

_createThrottledVisualizeBtn() {
const el = document.body.appendChild(Helper.setStyles('DIV', {
position : 'absolute',
width : '20px',
height : '20px',
top : '7px',
left : '60px',
border : '1px #FFEB3B solid',
backgroundSize : '8px 8px',
borderRadius : '6px',
background : 'radial-gradient(#F44336 15%, transparent 16%) 0 0, radial-gradient(#F44336 15%, transparent 16%) 4px 4px, radial-gradient(rgba(255,255,253,.1) 15%, transparent 20%) 0 1px, radial-gradient(rgba(255,255,255,.1) 15%, transparent 20%) 8px 8px',
backgroundColor: '#000',
cursor : 'pointer'
}));

el.title = 'throttled visualize (Ctrl-T)';
el.onclick = this._onThrottledVizualize.bind(this);

return el;
}

_onFullscreen() {
this._panZoom.zoomAbs(0, 0, 1.0);
this._panZoom.moveTo(0, 0);
Expand All @@ -189,12 +215,26 @@ class Canvas {
this._onAnimate();
}

_onThrottledVizualize(enableThrottling) {
this._throttledVisualize = typeof(enableThrottling) == 'boolean' ? enableThrottling : !this._throttledVisualize;
this._throttledVisualizeEl.style.backgroundColor = this._throttledVisualize ? '#FFEB3B' : '#000';
if (!this._throttledVisualize && this._throttledVisualizeCancel) {
clearTimeout(this._throttledVisualizeCancel);
this._throttledVisualizeCancel = null;
}
this._onAnimate();
}

_onAnimate() {
if (!this._panZoom) {return}
this._ctx.putImageData(this._imgData, 0, 0, this._xDataOffs, this._yDataOffs, this._visibleWidth, this._visibleHeight);

if (this._visualize === true) {
window.requestAnimationFrame(this._animate);
if (this._visualize === true && this._throttledVisualize === true) {
this._throttledVisualizeCancel = setTimeout(() => {
window.requestAnimationFrame(this._animate);
}, Config.THROTTLE_VISUALIZE_DELAY)
} else if (this._visualize === true) {
window.requestAnimationFrame(this._animate)
}
}

Expand Down Expand Up @@ -310,4 +350,4 @@ class Canvas {
}
}

module.exports = Canvas;
module.exports = Canvas;