Add touch overlay
This commit is contained in:
Varun Patil
parent
c4342bdb54
commit
ca7f72dfc0
158
extra/shell.html
158
extra/shell.html
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@ -3,6 +3,7 @@
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<head>
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<meta charset="utf-8">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no">
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<script src="js/localforage.min.js"></script>
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<script src="gameasync/mapping.js"></script>
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@ -26,7 +27,10 @@
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border: 0px none;
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background-color: black;
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height: 100%;
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max-height: 100vh;
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max-width: 100vw;
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}
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#spinner {
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position: fixed;
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bottom: 40px;
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@ -90,6 +94,45 @@
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padding: 3px 10px;
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border-top-right-radius: 5px;
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}
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#dpad, #apad {
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position: fixed;
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bottom: 0; left: 0;
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height: 30vh; max-height: 30vw;
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width: 30vh; max-width: 30vw;
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transform: translate(55%, -5%);
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}
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#apad {
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right: 0; left: unset;
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transform: unset;
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width: 15vh; max-width: 15vw;
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}
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#dpad *, #apad * {
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position: absolute;
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height: 15vh; max-height: 15vw;
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width: 15vh; max-width: 15vw;
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background-color: gray;
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opacity: 0.3;
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}
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#apad * {
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border-radius: 50%;
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}
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#d-up { transform: translateY(-100%); }
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#d-left { transform: translateX(-100%); }
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#d-down { transform: translateY(100%); }
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#d-right { transform: translateX(100%); }
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#ap-b { transform: translate(-130%, 90%); }
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#ap-c { transform: translate(-15%, -25%); }
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#ap-a {
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height: 7vh; max-height: 7vw;
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width: 7vh; max-width: 7vw;
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top: 50%;
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transform: translate(25%, 25%);
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}
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</style>
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</head>
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<body>
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@ -100,6 +143,20 @@
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<div id="progress">Loading ...</div>
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<canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1 width="640" height="480"></canvas>
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<div id="dpad">
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<div id="d-up"></div>
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<div id="d-right"></div>
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<div id="d-down"></div>
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<div id="d-left"></div>
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<div id="d-pl"></div>
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</div>
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<div id="apad">
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<div id="ap-c"></div>
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<div id="ap-b"></div>
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<div id="ap-a"></div>
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</div>
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</div>
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<div onclick="fullscreen()" id="fullscreen">
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@ -201,6 +258,7 @@
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function fullscreen() {
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document.getElementById('main').requestFullscreen();
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screen.orientation.lock("landscape")
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}
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window.onerror = function() {
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@ -291,6 +349,106 @@
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document.body.appendChild(s);
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});
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}, 500);
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function simulateKeyEvent(eventType, keyCode, charCode) {
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var e = document.createEventObject ? document.createEventObject() : document.createEvent("Events");
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if (e.initEvent) e.initEvent(eventType, true, true);
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e.keyCode = keyCode;
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e.which = keyCode;
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e.charCode = charCode;
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// Dispatch directly to Emscripten's html5.h API (use this if page uses emscripten/html5.h event handling):
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if (typeof JSEvents !== 'undefined' && JSEvents.eventHandlers && JSEvents.eventHandlers.length > 0) {
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for(var i = 0; i < JSEvents.eventHandlers.length; ++i) {
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if ((JSEvents.eventHandlers[i].target == Module['canvas'] || JSEvents.eventHandlers[i].target == window)
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&& JSEvents.eventHandlers[i].eventTypeString == eventType) {
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JSEvents.eventHandlers[i].handlerFunc(e);
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}
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}
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} else {
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// Dispatch to browser for real (use this if page uses SDL or something else for event handling):
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Module['canvas'].dispatchEvent ? Module['canvas'].dispatchEvent(e) : Module['canvas'].fireEvent("on" + eventType, e);
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}
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}
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// Mappings
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const keyMap = {};
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const keysDown = {};
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/** Add virtual key binding */
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function bindKey(elem, key) {
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keyMap[elem] = key;
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const ne = document.getElementById(elem);
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ne.addEventListener('touchstart', function(e) {
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e.preventDefault();
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simulateKeyEvent('keydown', key);
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keysDown[e.target.id] = elem;
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});
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ne.addEventListener('touchend', function(e) {
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e.preventDefault();
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if (keysDown[e.target.id] && keyMap[keysDown[e.target.id]]) {
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simulateKeyEvent('keyup', keyMap[keysDown[e.target.id]]);
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}
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keysDown[e.target.id] = 0;
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});
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ne.addEventListener('touchmove', function(event) {
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const myLocation = event.changedTouches[0];
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const realTarget = document.elementFromPoint(myLocation.clientX, myLocation.clientY).id;
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const origTarget = keysDown[myLocation.target.id];
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if (origTarget !== realTarget) {
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if (origTarget) {
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simulateKeyEvent('keyup', keyMap[origTarget]);
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keysDown[myLocation.target.id] = 0;
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}
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if (keyMap[realTarget]) {
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simulateKeyEvent('keydown', keyMap[realTarget]);
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keysDown[myLocation.target.id] = realTarget;
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}
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}
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});
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}
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function is_touch_device() {
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try {
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document.createEvent("TouchEvent");
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return true;
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} catch (e) {
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return false;
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}
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}
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if (!is_touch_device()) {
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document.getElementById('dpad').style.display = 'none';
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document.getElementById('apad').style.display = 'none';
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}
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// Add all bindings
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bindKey('d-up', 38);
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bindKey('d-right', 39);
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bindKey('d-down', 40);
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bindKey('d-left', 37);
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bindKey('ap-c', 67);
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bindKey('ap-b', 88);
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bindKey('ap-a', 90);
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const resize = function() {
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const el = document.getElementById('canvas');
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if (window.innerHeight > window.innerWidth) {
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el.style.height = 'unset';
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el.style.width = '100%';
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} else {
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el.style.width = 'unset';
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el.style.height = '100%';
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}
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}
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window.addEventListener('resize', resize);
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resize();
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</script>
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<!-- {{{ SCRIPT }}} -->
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