@babylonjs/core
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JavaScript
/** This file must only contain pure code and pure imports */
import { VirtualJoystick } from "../../Misc/virtualJoystick.js";
import { CameraInputTypes } from "../../Cameras/cameraInputsManager.js";
import { Matrix, TmpVectors, Vector3 } from "../../Maths/math.vector.pure.js";
import { FreeCameraInputsManager } from "../../Cameras/freeCameraInputsManager.pure.js";
/**
* Manage the Virtual Joystick inputs to control the movement of a free camera.
* @see https://doc.babylonjs.com/features/featuresDeepDive/cameras/customizingCameraInputs
*/
export class FreeCameraVirtualJoystickInput {
/**
* Gets the left stick of the virtual joystick.
* @returns The virtual Joystick
*/
getLeftJoystick() {
return this._leftjoystick;
}
/**
* Gets the right stick of the virtual joystick.
* @returns The virtual Joystick
*/
getRightJoystick() {
return this._rightjoystick;
}
/**
* Update the current camera state depending on the inputs that have been used this frame.
* This is a dynamically created lambda to avoid the performance penalty of looping for inputs in the render loop.
*/
checkInputs() {
if (this._leftjoystick) {
const camera = this.camera;
const speed = camera._computeLocalCameraSpeed() * 50;
const cameraTransform = TmpVectors.Matrix[0];
const deltaPosition = TmpVectors.Vector3[0];
const transformedDeltaPosition = TmpVectors.Vector3[1];
Matrix.RotationYawPitchRollToRef(camera.rotation.y, camera.rotation.x, 0, cameraTransform);
deltaPosition.copyFromFloats(this._leftjoystick.deltaPosition.x * speed, this._leftjoystick.deltaPosition.y * speed, this._leftjoystick.deltaPosition.z * speed);
Vector3.TransformCoordinatesToRef(deltaPosition, cameraTransform, transformedDeltaPosition);
camera.cameraDirection.addInPlace(transformedDeltaPosition);
camera.cameraRotation.addInPlaceFromFloats(this._rightjoystick.deltaPosition.x, this._rightjoystick.deltaPosition.y);
if (!this._leftjoystick.pressed) {
this._leftjoystick.deltaPosition.scaleInPlace(0.9);
}
if (!this._rightjoystick.pressed) {
this._rightjoystick.deltaPosition.scaleInPlace(0.9);
}
}
}
/**
* Attach the input controls to a specific dom element to get the input from.
*/
attachControl() {
this._leftjoystick = new VirtualJoystick(true);
this._leftjoystick.setAxisForUpDown(2 /* JoystickAxis.Z */);
this._leftjoystick.setAxisForLeftRight(0 /* JoystickAxis.X */);
this._leftjoystick.setJoystickSensibility(0.15);
this._rightjoystick = new VirtualJoystick(false);
this._rightjoystick.setAxisForUpDown(0 /* JoystickAxis.X */);
this._rightjoystick.setAxisForLeftRight(1 /* JoystickAxis.Y */);
this._rightjoystick.reverseUpDown = true;
this._rightjoystick.setJoystickSensibility(0.05);
this._rightjoystick.setJoystickColor("yellow");
}
/**
* Detach the current controls from the specified dom element.
*/
detachControl() {
this._leftjoystick.releaseCanvas();
this._rightjoystick.releaseCanvas();
}
/**
* Gets the class name of the current input.
* @returns the class name
*/
getClassName() {
return "FreeCameraVirtualJoystickInput";
}
/**
* Get the friendly name associated with the input class.
* @returns the input friendly name
*/
getSimpleName() {
return "virtualJoystick";
}
}
CameraInputTypes["FreeCameraVirtualJoystickInput"] = FreeCameraVirtualJoystickInput;
let _Registered = false;
/**
* Register side effects for freeCameraVirtualJoystickInput.
* Safe to call multiple times; only the first call has an effect.
*/
export function RegisterFreeCameraVirtualJoystickInput() {
if (_Registered) {
return;
}
_Registered = true;
/**
* Add virtual joystick input support to the input manager.
* @returns the current input manager
*/
FreeCameraInputsManager.prototype.addVirtualJoystick = function () {
this.add(new FreeCameraVirtualJoystickInput());
return this;
};
}
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