Finished targetPreview
Reverted back to react logic instead of scss logic and improved performance by partially showing the preview icon instead of letting it follow the mouse directly.
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4 changed files with 149 additions and 105 deletions
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@ -1,12 +1,23 @@
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import { faBurst, faCrosshairs, faXmark } from '@fortawesome/free-solid-svg-icons';
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import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
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import { CSSProperties, useState } from 'react';
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import { CSSProperties, useEffect, useState } from 'react';
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import { TargetPreviewType } from './interfaces';
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import './styles/App.scss';
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function App() {
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const [target, setTarget] = useState({
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event: false,
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show: false,
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x: 0,
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y: 0
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})
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const [targetPreview, setTargetPreview] = useState<TargetPreviewType>({
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newX: 0,
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newY: 0,
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shouldShow: false,
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appearOK: false,
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eventReady: true,
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show: false,
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x: 0,
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y: 0
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})
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@ -43,38 +54,101 @@ function App() {
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<div key={i} className='hit-svg' style={{'--x': obj.x, '--y': obj.y} as CSSProperties}>
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<FontAwesomeIcon icon={faBurst} />
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</div>);
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const corner = (x: number, y: number, count: number) => {switch (true) {
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case x === 0 && y === 0:
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return 'left-top-corner';
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case x === count+1 && y === 0:
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return 'right-top-corner';
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case x === 0 && y === count+1:
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return 'left-bottom-corner';
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case x === count+1 && y === count+1:
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return 'right-bottom-corner';
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default:
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return '';
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}};
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const border = (x: number, y: number, count: number) => {switch (true) {
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case x === 0:
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return 'left';
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case y === 0:
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return 'top';
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case x === count+1:
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return 'right';
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case y === count+1:
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return 'bottom';
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default:
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return '';
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}};
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for (let y = 0; y < count+2; y++) {
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for (let x = 0; x < count+2; x++) {
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const corner = [
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x === 0 && y === 0 ? 'left-top-corner' : '',
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x === count+1 && y === 0 ? 'right-top-corner' : '',
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x === 0 && y === count+1 ? 'left-bottom-corner' : '',
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x === count+1 && y === count+1 ? 'right-bottom-corner' : ''
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].filter(s => s);
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const border = [
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x === 0 ? 'left' : '',
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y === 0 ? 'top' : '',
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x === count+1 ? 'right' : '',
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y === count+1 ? 'bottom' : ''
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].filter(s => s);
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const borderType = corner.length ? corner[0] : border[0];
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const action = x > 0 && x < count+1 && y > 0 && y < count+1;
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const classNames = [
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'border-tile',
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borderType ? `edge ${borderType}` : '',
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action ? 'action' : ''
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].join(' ')
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const cornerReslt = corner(x, y, count);
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const borderType = cornerReslt ? cornerReslt : border(x, y, count);
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const isGameTile = x > 0 && x < count+1 && y > 0 && y < count+1;
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const classNames = ['border-tile'];
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if (borderType)
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classNames.push('edge', borderType);
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if (isGameTile)
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classNames.push('game-tile');
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borderTiles.push(
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<div
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key={y*(count+2)+x}
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className={classNames}
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className={classNames.join(' ')}
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style={{'--x': (x + 1), '--y': (y + 1)} as CSSProperties}
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onClick={action ? () => setTarget({ event: true, x, y }) : () => {}}
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onClick={() => {
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if (isGameTile)
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setTarget({ show: true, x, y });
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}}
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onMouseEnter={() => setTargetPreview(e => ({...e, newX: x, newY: y, shouldShow: isGameTile}))}
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></div>
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)
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}
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}
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// handle visibility and position change of targetPreview
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useEffect(() => {
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const {newX, newY, shouldShow, appearOK, eventReady, show, x, y} = targetPreview;
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const positionChange = !(x === newX && y === newY);
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// if not ready or no new position
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if (!eventReady || !positionChange)
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return;
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if (show) {
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// hide preview to change position when hidden
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setTargetPreview(e => ({...e, appearOK: false, eventReady: false, show: false}));
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} else if (shouldShow && appearOK) {
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// BUT only appear again if it's supposed to (in case the mouse left over the edge) and ()
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setTargetPreview(e => ({...e, appearOK: false, eventReady: false, show: true, x: newX, y: newY}));
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}
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}, [targetPreview])
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// enable targetPreview event again after 200 mil. sec.
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useEffect(() => {
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if (targetPreview.eventReady)
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return;
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const autoTimeout = setTimeout(() => {
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setTargetPreview(e => ({...e, eventReady: true}));
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}, 200);
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// or abort if state has changed early
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return () => {
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clearTimeout(autoTimeout);
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}
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}, [targetPreview.eventReady]);
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// approve targetPreview new position after 200 mil. sec.
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useEffect(() => {
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// early return to start cooldown only when about to show up
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if (!targetPreview.shouldShow)
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return;
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const autoTimeout = setTimeout(() => {
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setTargetPreview(e => ({...e, appearOK: true}));
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}, 350);
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// or abort if movement is repeated early
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return () => {
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clearTimeout(autoTimeout);
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}
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}, [targetPreview.shouldShow, targetPreview.newX, targetPreview.newY]);
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for (let i = 1; i <= 6; i++) {
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shipElems.push(
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@ -103,10 +177,10 @@ function App() {
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{/* <img className='fog-left' src={`/fog/fog2.png`} alt={`fog1.png`} />
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<img className='fog-right' src={`/fog/fog2.png`} alt={`fog1.png`} />
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<img className='fog-middle' src={`/fog/fog4.png`} alt={`fog4.png`} /> */}
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<div className={`hit-svg target ${target.event ? 'show' : ''}`} style={{'--x': target.x+1, '--y': target.y+1} as CSSProperties}>
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<div className={`hit-svg target ${target.show ? 'show' : ''}`} style={{'--x': target.x+1, '--y': target.y+1} as CSSProperties}>
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<FontAwesomeIcon icon={faCrosshairs} />
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</div>
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<div className={`hit-svg target-preview`}>
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<div className={`hit-svg target-preview ${targetPreview.show && (target.x !== targetPreview.x || target.y !== targetPreview.y) ? 'show' : ''}`} style={{'--x': targetPreview.x+1, '--y': targetPreview.y+1} as CSSProperties}>
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<FontAwesomeIcon icon={faCrosshairs} />
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</div>
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</div>
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10
frontend/src/interfaces.ts
Normal file
10
frontend/src/interfaces.ts
Normal file
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@ -0,0 +1,10 @@
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export interface TargetPreviewType {
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newX: number,
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newY: number,
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shouldShow: boolean,
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appearOK: boolean,
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eventReady: boolean,
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show: boolean,
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x: number,
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y: number
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}
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@ -36,7 +36,7 @@
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#game-frame {
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// border: 1px solid orange;
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position: relative;
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// position: relative;
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$height: 945px;
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$width: $height;
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height: $height;
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@ -63,73 +63,7 @@
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&.edge {
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border: 1px solid gray;
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}
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&.left-top-corner {
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-webkit-mask-image: -webkit-gradient(linear, right bottom,
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left top, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.right-top-corner {
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-webkit-mask-image: -webkit-gradient(linear, left bottom,
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right top, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.left-bottom-corner {
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-webkit-mask-image: -webkit-gradient(linear, right top,
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left bottom, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.right-bottom-corner {
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-webkit-mask-image: -webkit-gradient(linear, left top,
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right bottom, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.left {
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-webkit-mask-image: -webkit-gradient(linear, right top,
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left top, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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&.right {
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-webkit-mask-image: -webkit-gradient(linear, left top,
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right top, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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&.top {
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-webkit-mask-image: -webkit-gradient(linear, left bottom,
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left top, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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&.bottom {
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-webkit-mask-image: -webkit-gradient(linear, left top,
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left bottom, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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$point-size: 1;
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$count: 12;
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$grid-elem-width: $count + 2;
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$warst: $count + 1.5;
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$one: calc($height / $warst);
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$elements-in-grid: $grid-elem-width * $grid-elem-width;
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// Inspired by https://stackoverflow.com/questions/35990505/get-position-of-mouse-pointer-in-css-without-javascript
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@for $i from 1 through $elements-in-grid {
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&:nth-child(#{$i}) {
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&:hover {
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&:not(.edge) ~ .target-preview {
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opacity: 1;
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}
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& ~ .target-preview {
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$row: ceil(calc($i / $grid-elem-width));
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top: (
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($row - 2)
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* $one
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+ ($one * 0.75)
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);
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left: (
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($i
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- (($row - 1) * $grid-elem-width)
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- 2)
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* $one
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+ ($one * 0.75)
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);
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}
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}
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}
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}
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@include gradient-edge;
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}
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> :not(.border) {
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box-sizing: border-box;
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@ -212,24 +146,15 @@
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&.target {
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color: red;
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opacity: 0;
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&.show {
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opacity: 1;
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}
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}
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&.target-preview {
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color: orange;
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opacity: 0;
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position: absolute;
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@include transition(.2s);
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$count: 12;
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height: calc($height / ($count + 1.5));
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width: calc($height / ($count + 1.5));
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&.show {
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opacity: 1;
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}
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}
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&.show {
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opacity: 1;
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}
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}
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.r2 {
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@ -16,3 +16,38 @@
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opacity: 1;
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}
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}
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@mixin gradient-edge {
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&.left-top-corner {
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-webkit-mask-image: -webkit-gradient(linear, right bottom,
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left top, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.right-top-corner {
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-webkit-mask-image: -webkit-gradient(linear, left bottom,
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right top, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.left-bottom-corner {
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-webkit-mask-image: -webkit-gradient(linear, right top,
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left bottom, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.right-bottom-corner {
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-webkit-mask-image: -webkit-gradient(linear, left top,
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right bottom, color-stop(0, rgba(0,0,0,1)), color-stop(0.5, rgba(0,0,0,0)));
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}
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&.left {
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-webkit-mask-image: -webkit-gradient(linear, right top,
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left top, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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&.right {
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-webkit-mask-image: -webkit-gradient(linear, left top,
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right top, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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&.top {
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-webkit-mask-image: -webkit-gradient(linear, left bottom,
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left top, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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&.bottom {
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-webkit-mask-image: -webkit-gradient(linear, left top,
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left bottom, from(rgba(0,0,0,1)), to(rgba(0,0,0,0)));
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}
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}
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