1 line
4.6 KiB
JavaScript
1 line
4.6 KiB
JavaScript
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let thumbStickThreshHold=.75,buttonStates=[{padIndex:0,key:"GamepadA",keyCode:195},{padIndex:1,key:"GamepadB",keyCode:196},{padIndex:2,key:"GamepadX",keyCode:197},{padIndex:3,key:"GamepadY",keyCode:198},{padIndex:4,key:"GamepadLeftShoulder",keyCode:200},{padIndex:5,key:"GamepadRightShoulder",keyCode:199},{padIndex:6,key:"GamepadLeftTrigger",keyCode:201},{padIndex:7,key:"GamepadRightTrigger",keyCode:202},{padIndex:8,key:"GamepadView",keyCode:208},{padIndex:9,key:"GamepadMenu",keyCode:207},{padIndex:10,key:"GamepadLeftThumbstickButton",keyCode:209},{padIndex:11,key:"GamepadRightThumbstickButton",keyCode:210},{padIndex:12,key:"GamepadDPadUp",keyCode:203},{padIndex:13,key:"GamepadDPadDown",keyCode:204},{padIndex:14,key:"GamepadDPadLeft",keyCode:205},{padIndex:15,key:"GamepadDPadRight",keyCode:206}],axisStates=[{axis:0,key:"GamepadLeftThumbstickLeft",keyCode:214},{axis:0,key:"GamepadLeftThumbstickRight",keyCode:213},{axis:1,key:"GamepadLeftThumbstickUp",keyCode:211},{axis:1,key:"GamepadLeftThumbstickDown",keyCode:212},{axis:2,key:"GamepadRightThumbstickLeft",keyCode:218},{axis:2,key:"GamepadRightThumbstickRight",keyCode:217},{axis:3,key:"GamepadRightThumbstickUp",keyCode:215},{axis:3,key:"GamepadRightThumbstickDown",keyCode:216}],allControls=[],isLooping=!1,repeatIntervalId=null;function allowInput(){var doc=document;return"hidden"!==doc.visibilityState&&!!doc.hasFocus()}function stopRepeatInterval(){repeatIntervalId&&(clearInterval(repeatIntervalId),repeatIntervalId=null)}function startRepeatInterval(){stopRepeatInterval(),repeatIntervalId=window.setInterval(onRepeatInterval,100)}function onRepeatInterval(){let downButton=allControls.find(e=>e.pressed);downButton&&1<allControls.filter(e=>e.pressed).length&&(downButton=null),allowInput()?downButton?raiseEvent("keydown",downButton.key,downButton.keyCode,!0):stopRepeatInterval():(stopRepeatInterval(),clearAll())}function raiseEvent(name,key,keyCode,repeat){if(allowInput()||"keyup"===name){let event=document.createEvent("Event"),element=(event.initEvent(name,!0,!0),event.key=key,event.keyCode=keyCode,null!=repeat&&(event.repeat=repeat),document.activeElement||document.body);setTimeout(()=>element.dispatchEvent(event))}}function getGamepads(){try{return navigator.getGamepads()||[]}catch(err){return console.log("Error getting gamepads: "+err),[]}}function fireKeyUpEvents(){for(let i=0;i<allControls.length;i++){var button=allControls[i];button.pressed&&!button.newPressedState&&(button.pressed=!1,raiseEvent("keyup",button.key,button.keyCode,!1))}}function fireKeyDownEvents(){for(let i=0;i<allControls.length;i++){var button=allControls[i];!button.pressed&&button.newPressedState&&(button.pressed=!0,raiseEvent("keydown",button.key,button.keyCode,!1))}}function processStateChanges(){allControls.some(e=>e.pressed||e.newPressedState)&&!allowInput()?clearAll():((allControls.find(e=>!e.pressed&&e.newPressedState)?(fireKeyUpEvents(),fireKeyDownEvents(),startRepeatInterval):fireKeyUpEvents)(),allControls.some(e=>e.pressed!==e.newPressedState)&&console.error("gamepadtokey.processStateChanges: Logic error!"))}function clearAll(){allControls.forEach(e=>e.newPressedState=!1),fireKeyUpEvents()}function runInputLoop(){var gamepads=getGamepads();let gamepad=null;for(let i=0,length=gamepads.length;i<length;i++)if(gamepads[i]){gamepad=gamepads[i];break}if(gamepad){if(!(gamepad.timestamp&&gamepad._lastTimestamp===gamepad.timestamp||!gamepad.timestamp&&gamepad._lastTimestamp&&Date.now()-gamepad._lastTimestamp<100)){gamepad._lastTimestamp=gamepad.timestamp||Date.now();var buttons=gamepad.buttons;for(let j=0;j<buttons.length&&j<buttonStates.length;j++)buttonStates[j].newPressedState=buttons[j].pressed;var axes=gamepad.axes;for(let j=0;j<axes.length&&j<4;j++)axisStates[2*j].newPressedState=axes[j]<-thumbStickThreshHold,axisStates[2*j+1].newPressedState=axes[j]>thumbStickThreshHold;allControls.some(e=>e.pressed!==e.newPressedState)&&processStateChanges()}requestAnimationFrame(runInputLoop)}else clearAll(),console.log("exiting gamepad input loop"),isLooping=!1}buttonStates.forEach(e=>allControls.push(e)),ax
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