void Update()
{
// Camera angle adjustment by right mouse drag
var mp = float3(Input.mousePosition).xy;
var d_mp = (float2)(mp - _prevMousePos);
if (Input.GetMouseButton(1))
{
var d_angle = d_mp.yx * float2(-1, 1) * 0.002f;
_cameraAngles.xy = clamp(_cameraAngles.xy + d_angle, -1, 1);
}
_prevMousePos = mp;
// Camera pivot rotation
var pivot = transform.parent;
var target = EulerZXY(_cameraAngles);
pivot.localRotation = ExpTween.Step(pivot.localRotation, target, 12);
// Mouse wheel (camera distance)
var d_dist = Input.mouseScrollDelta.y * -0.8f;
_cameraDistance = Mathf.Max(1, _cameraDistance + d_dist);
var z = transform.localPosition.z;
z = ExpTween.Step(z, -_cameraDistance, 12);
transform.localPosition = new Vector3(0, 0, z);
}
void Update()
{
if (_dragFrom == null || _dragTo == null)
{
return;
}
var delta = RotationBetween((float3)_dragFrom, (float3)_dragTo);
var target = mul(delta, _rotateFrom);
transform.localRotation = ExpTween.Step(transform.localRotation, target, 12);
}
void Update()
{
// Camera pivot rotation
var pivot = transform.parent;
var target = EulerZXY(_cameraAngles);
pivot.localRotation = ExpTween.Step(pivot.localRotation, target, 12);
// Mouse wheel (camera distance)
var d_dist = Input.mouseScrollDelta.y * -0.8f;
_cameraDistance = Mathf.Max(1, _cameraDistance + d_dist);
var z = transform.localPosition.z;
z = ExpTween.Step(z, -_cameraDistance, 12);
transform.localPosition = new Vector3(0, 0, z);
}
void Update()
{
// Update the drag-to point while pressing the left button down.
if (Input.GetMouseButton(0))
{
_dragTo = MouseRayCast() ?? _dragTo;
}
// Update the drag-from point on a left button down.
if (Input.GetMouseButtonDown(0))
{
_dragFrom = _dragTo;
_rotateFrom = transform.localRotation;
}
// Globe pivot rotation
if (_dragFrom != null && _dragTo != null)
{
var delta = RotationBetween((float3)_dragFrom, (float3)_dragTo);
var target = mul(delta, _rotateFrom);
transform.localRotation = ExpTween.Step(transform.localRotation, target, 12);
}
}