@doegis/core/views/2d/input/handlers/GamepadNavigation.js

DOE GIS API

import t from"../../../../core/Handles.js";import{watch as i,initial as e}from"../../../../core/reactiveUtils.js";import{addFrameTask as a}from"../../../../core/scheduling.js";import{translateBy as s,scaleAndRotateBy as n}from"../../viewpointUtils.js";import{InputHandler as r}from"../../../input/InputHandler.js";import{resetTransformation as o,extractTransformation as h,isZeroTransformation as l}from"../../../navigation/gamepadAndKeyboardUtils.js";class d extends r{constructor(i){super(!0),this._view=i,this._frameTask=null,this._watchHandles=new t,this._currentDevice=null,this._transformation={translation:[0,0,0],heading:0,tilt:0,zoom:0},this._handle=this.registerIncoming("gamepad",(t=>this._handleGamePadEvent(t))),this._handle.pause()}onInstall(t){super.onInstall(t),this._watchHandles.add([i((()=>this._view.navigation.gamepad?.enabled),(t=>{t?(this._handle.resume(),this._frameTask||(this._frameTask=a({update:t=>this._frameUpdate(t.deltaTime)}))):(this._handle.pause(),this._frameTask&&(this._frameTask.remove(),this._frameTask=null))}),e)])}onUninstall(){this._watchHandles.removeAll(),this._frameTask&&(this._frameTask.remove(),this._frameTask=null),super.onUninstall()}_handleGamePadEvent(t){const i=this._view.navigation.gamepad.device;i&&t.data.device!==i||this._currentDevice&&this._currentDevice!==t.data.device||("end"===t.data.action?(this._currentDevice=null,o(this._transformation)):(this._currentDevice=t.data.device,h(t.data,this._view.navigation.gamepad,this._transformation)))}_frameUpdate(t){const i=this._transformation;if(l(i))return;const e=this._view.viewpoint.clone(),a=this._view.navigation.gamepad.velocityFactor,r=_*a*t;s(e,e,[i.translation[0]*r,-i.translation[1]*r]);const o=1+i.translation[2]*c*t,h=this._view.constraints.rotationEnabled?-i.heading*m*t:0,d=this._view.size,v=[d[0]/2,d[1]];n(e,e,o,h,v,d);const p=this._view.constraints.constrain(e,this._view.viewpoint);this._view.viewpoint=p}}const m=.06,_=.7,c=6e-4;export{d as GamepadNavigation};