MouseLookCharacterMotionController

import { BaseCharacterMotionController } from './BaseCharacterMotionController.js';

export class MouseLookCharacterMotionController extends BaseCharacterMotionController {
  constructor({
    lookSensitivityX = 0.0022,
    lookSensitivityY = 0.0018,
    ...config
  }) {
    super(config);
    this.cfg.lookSensitivityX = lookSensitivityX;
    this.cfg.lookSensitivityY = lookSensitivityY;
  }

  // forward/backward: 0..1 moves along the local forward/backward directions.
  // strafeLeft/strafeRight: 0..1 moves along the local left/right directions.
  // mouseDeltaX/mouseDeltaY: rotate view yaw/pitch.
  planMovement({
    forward = 0,
    backward = 0,
    strafeLeft = 0,
    strafeRight = 0,
    sprint = false,
    crouch = false,
    jump = false,
    mouseDeltaX = 0,
    mouseDeltaY = 0,
    deltaSeconds = 1 / 60,
    commit = false,
  }) {

    const rightAxis = this.basis.controlSignal('left', strafeLeft) + this.basis.controlSignal('right', strafeRight);
    const forwardAxis = this.basis.controlSignal('backward', backward) + this.basis.controlSignal('forward', forward);
    const clockWiseSign = this.basis.controlSignal('clockWise', true);
    const nextYaw = this.yaw + clockWiseSign * mouseDeltaX * this.cfg.lookSensitivityX;
    const nextPitch = this.pitch + clockWiseSign * mouseDeltaY * this.cfg.lookSensitivityY;
    const inputLength = Math.hypot(rightAxis, forwardAxis);
    const inputScale = inputLength > 1 ? 1 / inputLength : 1;
    const moveFrame = this.basis.yawPitchRollFrame(nextYaw);
    const moveDirection = moveFrame.right
      .multiplyScalar(rightAxis * inputScale)
      .addScaledVector(moveFrame.forward, forwardAxis * inputScale);

    const intent = this._prepareLocomotion({
      moveDirection,
      sprint,
      crouch,
      jump,
      yaw: nextYaw,
      pitch: nextPitch,
      deltaSeconds,
    });

    if (commit) return this.commitMovement(intent);
    return intent;
  }
}