SOS Game Cursor Tutorial

In the online woooorrrrllllddd, non-mobile platforms have a whole “hover” woooorrrrllllddd forsaken by the mobile platforms. In that woooorrrrllllddd you can “decorate” or personalize your cursor, that “character” (or perhaps more if you involve SVG_+XML protocol cursor customized definitions) which follows your mouse position around the screen.

The event “onmouseover” is called that once on a detection of that hovering concerning an HTML element you are interested in. Event “onmouseover” is not called again until a re-entry happens (and an “onmouseout” event happens as the mouse leaves the environs of your element having previously caused an “onmouseover” event to be called).

If the position remains of interest during that time between an “onmouseover” and an “onmouseout” event be of interest, as it is for us, today, retweaking our recent SOS Game (last talked about with SOS Game Primer Tutorial) functionality, we need to start taking an interest in that element’s “onmousemove” event, called by the system every time the mouse moves within the realms of your HTML element of interest.

Our SOS Game differentiates an “S” user play, from a user “O” play via whether the click (and now hover) positioning is at the top and bottom of the relevant table cell element respectively, decorated by a linear gradient helping background image, with the hovering, as well.

Can the event logic be quick enough? We’ll let you judge for yourself. Probably your impatient players will occasionally fall foul of this hovering advice, but for the main part, we found it helped explain how the game works, having these SVG defined “S” and “O” SVG text cursor customizations happen for our non-mobile SOS Game players out there.

Javascript wise, we fleshed out the (previously not fleshed out) function sback as below, in a way that made it compatible to calls from “onmousemove” events as well as the “onmouseover” events it had already been deployed for …

… to make this “ever so mild” makeover of our SOS Game happen involving a changed sos_game.html for interested parties.

Previous relevant SOS Game Primer Tutorial is shown below.

SOS Game Primer Tutorial

Even though it took too long to get to yesterday’s Word Find Game Viewport Tutorial‘s Word Find Game’s level of satisfaction, for us, it was always going to be worth it, because when you overengineer it can mean cloning off that into another useful web application is a “paring down” exercise, more than anything, and this is infinitely easier than “a reinvention of the wheel” scenario, especially where it comes to “cross platform” game usage “user experience” issues.

The fun bit of such an approach, in thinking about what we end up with today is the thought that a …

Word Find Game … could be cloned or morphed into a …
SOS Game

… we remember from our days at high school, in less than a day. The memory of the SOS Game did not extend to the detail, and so we thank How to Play – SOS for reminders about the status of diagonality, while up versus down and forwards versus backwards concerns were a bit “per se” regarding “SOS”!

It was the confluence of one “onclick” type event to cover, regarding span elements set out in a grid initialized to a non-breaking space ( ie.   ) …

fill in contents as “S”
fill in contents as “O”

… that set us to determining for the span “cell” click, was it positioned …

in the top half means “S” … or …
in the bottom half means “O”

? This had us converging on changes to the “clicks” mode onclick event Javascript logic …

… which on non-mobile platforms compliments the CSS styling …

… quite nicely, in a colour coded sense, in the “how we got there” sos_game.html SOS Game you can also try below …

Previous relevant Word Find Game Aesthetics Tutorial is shown below.

Word Find Game Aesthetics Tutorial

CSS styling keeps getting better for webpages, with extended functionality, as proven when CSS3 came to being. Two styling features we find quite impactive are …

CSS animation … and …
CSS linear gradients

… we use, respectively, regarding …

“selection” textarea and “click” div of span elements … helping create a colour coded border “glow” 3D effect …
<style> /* Thanks to https://www.w3schools.com/howto/tryit.asp?filename=tryhow_css_glowing_text */ @-webkit-keyframes glow { from { box-shadow: 0 0 3px #fff, 0 0 5px #fff, 0 0 37px #e60073, 0 0 9px #e60073, 0 0 11px #e60073, 0 0 13px #e60073, 0 0 15px #e60073; } to { box-shadow: 0 0 24px #fff, 0 0 6px #ff4da6, 0 0 8px #ff4da6, 0 0 10px #ff4da6, 0 0 12px #ff4da6, 0 0 14px #ff4da6, 0 0 16px #ff4da6; } } @-webkit-keyframes wglow { from { box-shadow: 0 0 3px #fff, 0 0 5px #fff, 0 0 37px #7300e6, 0 0 9px #7300e6, 0 0 11px #7300e6, 0 0 13px #7300e6, 0 0 15px #7300e6; } to { box-shadow: 0 0 24px #fff, 0 0 6px #ff4da6, 0 0 8px #a64dff, 0 0 10px #a64dff, 0 0 12px #a64dff, 0 0 14px #a64dff, 0 0 16px #a64dff; } } textarea { font-family: Courier New; font-size: 20px; opacity: 0.9; z-index: 9; padding: 0 0 0 0; margin: 0 0 0 0; text-shadow: -1px 1px 1px #952dff; -webkit-animation: glow 1s linear infinite alternate; -moz-animation: glow 1s linear infinite alternate; animation: glow 1s linear infinite alternate; } #wunderlay { font-family: Courier New; font-size: 20px; opacity: 0.3; z-index: 11; padding: 0 0 0 0; margin: 0 0 0 0; -webkit-animation: glow 1s linear infinite alternate; -moz-animation: glow 1s linear infinite alternate; animation: glow 1s linear infinite alternate; } </style>
… that is dynamically changed to “wglow” (and font-family Courier) should the user select “click” mode of interactive entry
background-image CSS property linear gradient background to dropdown and textbox element effect …
<style> /* Thanks to https://medium.com/thirty-9/3-tips-for-using-subtle-css-gradients-f5691e453602 */ body { background-image: linear-gradient(to right bottom, #ffffff, #fcfafc, #f9f6f8, #f8f1f3, #f6ecec); } #names { background-image: linear-gradient(to right bottom, #eeeeee, #ebe9eb, #e8e5e7, #e7e0e2, #e5dbdb); } select { background-image: linear-gradient(to right bottom, white, yellow, pink, silver, lightgray); } </style>

And so, improving on yesterday’s Word Find Game Mobile Tutorial we have in our changed word_find_game.html Word Find Game you can also try, yes, yet again, below.

Previous relevant Word Find Game Mobile Tutorial is shown below.

Word Find Game Mobile Tutorial

Yesterday’s Word Find Game Personalization Tutorial, and the Word Find Game from versions before all had an unwieldy relationship with mobile platforms. The …

selection, via Selection API, using HTML textarea, suits non-mobile well … but we think today’s newly coded for …
click, via HTML span element onclick logics, work better on mobile platforms

… and so we’ve coded for a new dropdown to offer both modus operandi as options, with new “click” modus operandi Javascript …

… in our changed word_find_game.html Word Find Game you can also try, yes, again, below.

Previous relevant Word Find Game Personalization Tutorial is shown below.

Word Find Game Personalization Tutorial

Yesterday’s Word Find Game Modes of Use Tutorial gave us the means by which we could have multiple players in our “Finding the Word” game, as a number. But many users prefer “names” to “numbers”. And so …

we start asking for an optional (comma separated) user name list … that if used …
starts looking for Notifications API functionality to keep the players informed about proceedings … and …
if underlying Navigator API navigator.platform points at an underlying macOS operating system, also offer the user the chance to turn notification wording to audio commentary, as well

… as per Javascript …

… showing two different uses of two different invisible HTML iframe elements …

<iframe id=notif style='display:none;' src=></iframe> <iframe id=sayif name=sayif style='display:none;' src=></iframe>

… in our changed word_find_game.html Word Find Game you can also try, yet again, below.

Previous relevant Word Find Game Modes of Use Tutorial is shown below.

Word Find Game Modes of Use Tutorial

Online games often feature …

degree of difficulty
number of player(s)

… modes of use that the user(s) can control. And so, with this in mind, to improve on yesterday’s Word Find Game Underlay Tutorial we’ve set out providing ways the users can control these two concepts via two new dropdowns …

<h1>Word Find Game <select onchange="restart(this);"><option value="hard">Hard</option><option value="easy">Easy</option><option value="easier">Easier</option><option value="easiest">Easiest</option></select> <span id=curbit>for</span> <select id=numsel onchange='nparrange(this);'><option value=1>1 player</option><option value=2>2 players</option><option value=3>3 players</option><option value=4>4 players</option><option value=5>5 players</option></select></h1>

… along with a span element showing the current player number all within that topmost h1 element, and helped out by two new dropdown (ie. select element) onchange event Javascript logics …

… to help encourage some optional collaboration aspects to our changed word_find_game.html Word Find Game you can also try, again, below.

Previous relevant Word Find Game Underlay Tutorial is shown below.

Word Find Game Underlay Tutorial

If you are a regular reader at this blog, you will know we discuss the CSS styling idea of …

overlay … much more than …
underlay

… but there is essentially only the difference in the control of “z-index” (and maybe “opacity”) property different about the concepts, and to deploy to improve on for the start we made with yesterday’s Word Find Game Primer Tutorial.

“Underlay” usefulness, to us, goes like this …

what you “underlay” … for us within the new CSS styling …
<style> textarea { font-family: Courier New; font-size: 20px; opacity: 0.9; z-index: 9; padding: 0 0 0 0; margin: 0 0 0 0; } #underlay { font-family: Courier New; font-size: 20px; opacity: 0.3; z-index: 1; padding: 0 0 0 0; margin: 0 0 0 0; } div.underlay { font-family: Courier New; font-size: 20px; opacity: 0.3; z-index: 2; padding: 0 0 0 0; margin: 0 0 0 0; } </style>
… regimen …
has nothing to do with interactive entry, which should be more in your “overlay” thinking, else the user is stumped … but …
can help with dynamically enhanced markup jobs that value add to the aesthetics of the webpage

… specifically showing the user “where they’ve been” amongst the “sea of letters” of our changed word_find_game.html Word Find Game you can also try below.

Previous relevant Word Find Game Primer Tutorial is shown below.

Word Find Game Primer Tutorial

Today’s “Word Find Game” gets its inspirations from two sources …

remembering those word find games you might find in the Sunday newspapers … and as a coding basis …
textarea and Selection API user interface you can prepare for by reading yesterday’s Selection API and Clipboard API Tutorial

Today we just do the “proof of concept” first draft word_find_game.html, because the Selection API highlighting really suits …

horizontal forwards
horizontal backwards

… word finding in the game, but we also want to allow for …

vertical down
vertical up
diagonal right down
diagonal right up
diagonal left down
diagonal left up

… which can be handled, but in a pretty kludgy way …

… just relying on Selection API text highlighting in an HTML textarea element. Other ideas to improve await for follow up versions!

Previous relevant Selection API and Clipboard API Tutorial is shown below.

Selection API and Clipboard API Tutorial

There’s the …

clipboard, the “cut and copy and paste ideas”, for text, as we showed you with Clipboard API Image Tutorial and Clipboard API Primer Tutorial … but there’s also the bit before you reach the clipboard using the …
text selection (ie. the bit of text you highlight using your mouse or touchpad) … accessible, today, via our introduction to the Selection API

… using HTML changed code …

… supported by new Javascript event interventional code …

var origemailurl='mailto:?subject=My%20Selection%20...&body='; var origsmsurl='sms:&body=My%20Selection%20...'; var smsee=''; // addEventListener version document.addEventListener('selectionchange', () => { document.getElementById('emailsms').style.display='table-cell'; document.getElementById('mytao').title=document.getSelection().toString(); aemailurl=origemailurl + encodeURIComponent(document.getSelection().toString()); document.getElementById('aemail').href=aemailurl; asmsurl=origsmsurl + encodeURIComponent(String.fromCharCode(10) + document.getSelection().toString()); document.getElementById('asms').href=asmsurl; console.log(document.getSelection().toString()); }); // addEventListener version document.addEventListener('selectstart', () => { document.getElementById('mytao').title=''; aemailurl=origemailurl; asmsurl=origsmsurl; console.log('Selection started'); });

… to be able to share your highlighted text snippets via email or SMS in the changed clipboard_api_test.html Selection API usage web application you can also try below.

Previous relevant Clipboard API Image Tutorial is shown below.

Clipboard API Image Tutorial

Yes, yesterday’s Clipboard API Primer Tutorial‘s Clipboard API usages just involved …

text based data … and today we turn our attention to …
image based data

… to extend the functionality and interest of our changed clipboard_api_test.htm proof of concept
text and image clipboard using webpage.

It’s lucky for us that there are so many good resources out there to help, one link of real interest, for us, being this excellent link, thanks, getting us to use this new Javascript function …

async function pasteImage() { //event.stopPropagation(); try { const permission = await navigator.permissions.query({ name: 'clipboard-read' }); if (permission.state === 'denied') { throw new Error('Not allowed to read clipboard.'); } const clipboardContents = await navigator.clipboard.read(); for (const item of clipboardContents) { if (!item.types.includes('image/png')) { throw new Error('Clipboard contains non-image data.'); } const blob = await item.getType('image/png'); imgz = new Image(); anothercell(); imgz.onload = () => { destinationImage.style.width='' + imgz.width + 'px'; destinationImage.style.height='' + imgz.height + 'px'; prevw=eval('' + ('' + cnv.style.width).replace('px','')); prevh=eval('' + ('' + cnv.style.height).replace('px','')); console.log('canvas width becomes ' + eval('' + cnv.width) + ' + ' + eval('' + imgz.width) + ' = ' + '' + eval(eval('' + cnv.width) + eval('' + imgz.width)) + 'px'); cnv.style.width='' + eval(eval('' + ('' + cnv.style.width).replace('px','')) + eval('' + imgz.width)) + 'px'; cnv.style.height='' + eval(eval('' + ('' + cnv.style.height).replace('px','')) + eval('' + imgz.height)) + 'px'; cnv.width='' + ('' + cnv.style.width).replace('px','') + 'px'; cnv.height='' + ('' + cnv.style.height).replace('px','') + 'px'; if (mmode == 'mbefore' || 1 == 1) { ctx.drawImage(imgz, prevw, prevh); if (wo) { wo.close(); wo=null; } cnv.style.display='block'; //wo=window.open('','_blank','top=50,left=50,height=600,width=600'); //wo.document.write(cnv.toDataURL('image/png')); } }; imgz.src = URL.createObjectURL(blob); destinationImage.src = URL.createObjectURL(blob); //cnv.style.backgroundRepeat=(('' + cnv.style.backgroundRepeat) + ',no-repeat').replace(/^\,/g,''); //if (('' + cnv.style.background + ' ').trim() != '') { document.getElementById('mysummary').innerHTML='Conglomerated Images below ...'; } cnv.style.background=(('' + cnv.style.background) + ',url(' + destinationImage.src + ') no-repeat').replace(/^\,/g,''); //document.querySelector(".editor").style.display='block'; //destinationImage.style.display='none'; setTimeout(anothercellz, 6000); } } catch (error) { console.error(error.message); } }

… to achieve a lot of this image data use of the Clipboard API functionality.

Previous relevant Clipboard API Primer Tutorial is shown below.

Clipboard API Primer Tutorial

Here’s another day of testing a Javascript API today, which has that “desktop feel”, that being the Clipboard API …

The Clipboard API provides the ability to respond to clipboard commands (cut, copy, and paste) as well as to asynchronously read from and write to the system clipboard.

… our clipboard_api_test.html proof of concept version offering “text clipboard data” functionality from the text based clipboard into an HTML textarea element via …

append
prepend
at cursor

… modes of use, you can also try below (or get a sneak peak at tomorrow’s ideas) …

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