private bool GetAllEntitySelectedByVirtualCamera(ref List <SpacecraftEntity> targetList)
{
MainCameraComponent mainCam = CameraManager.GetInstance().GetMainCamereComponent();
SkillSystemGrow skillGrow = m_PlayerSkillProxy.GetCurrentWeaponSkill().GetSkillGrow();
float range = skillGrow.Range * SceneController.SPACE_ACCURACY_TO_CLIENT;
// 粗略的拾取.
// 拾取锥体视为一个相机, 把技能射程视为远裁剪面. 根据FOV取远裁剪面的大小, 投射这个大小的Box, 获取所有拾取到的Entity
{
// 所有粗略裁剪的物体 = Physics.BoxCastAll(投射开始点, 盒子边长, 相机方向, SkillLayer)
float halfBoxVerticalSideLength = range * Mathf.Tan(m_ReticleHorizontalFOVParam / m_ReticleAspect * 0.5f * Mathf.Deg2Rad);
float halfBoxHorizontalSideLength = halfBoxVerticalSideLength * m_ReticleAspect;
// 投射开始的点 = 相机近裁剪面的中心点 + 相机方向 * 盒子边长的一半
Vector3 startPoint = mainCam.transform.position + (mainCam.GetCamera().nearClipPlane + halfBoxVerticalSideLength) * mainCam.GetForward();
RaycastHit[] hitInfos = Physics.BoxCastAll(startPoint,
new Vector3(halfBoxHorizontalSideLength, halfBoxVerticalSideLength, halfBoxVerticalSideLength),
mainCam.GetForward(),
Quaternion.identity, range,
LayerUtil.GetLayersIntersectWithSkillProjectile(true));
for (int iHit = 0; iHit < hitInfos.Length; iHit++)
{
Rigidbody rigidBody = hitInfos[iHit].rigidbody;
if (rigidBody == null)
{
continue;
}
SpacecraftEntity entity = rigidBody.GetComponent <SpacecraftEntity>();
if (entity != null)
{
targetList.Add(entity);
}
}
}
if (m_VirtualCameraForReticleSelection != null)
{
// 更新虚拟相机的方向和位置
m_VirtualCameraForReticleSelection.transform.position = mainCam.transform.position;
m_VirtualCameraForReticleSelection.transform.rotation = mainCam.transform.rotation;
// 更精细的判断. 当前版本仅计算目标中心点是不是在 虚拟相机 里面
for (int iTarget = 0; iTarget < targetList.Count; iTarget++)
{
Vector3 viewportPos = m_VirtualCameraForReticleSelection.WorldToViewportPoint(targetList[iTarget].transform.position);
if (viewportPos.x < 0 || viewportPos.y < 0 || viewportPos.x > 1 || viewportPos.y > 1)
{
targetList.RemoveAt(iTarget);
iTarget--;
}
}
}
return(targetList.Count > 0);
}
private Ray GetViewRay()
{
MainCameraComponent mainCam = CameraManager.GetInstance().GetMainCamereComponent();
if (mainCam != null)
{
return(new Ray(mainCam.GetPosition(), mainCam.GetForward()));
}
else
{
return(new Ray());
}
}
/// <summary>
/// 正前方中心点射线选中的目标
/// </summary>
/// <returns></returns>
private BaseEntity GetForwardEntity()
{
MainCameraComponent mainCam = CameraManager.GetInstance().GetMainCamereComponent();
Ray ray = new Ray(mainCam.GetPosition(), mainCam.GetForward());
RaycastHit hitInfo = new RaycastHit();
if (Physics.Raycast(ray, out hitInfo, m_SkillMaxDistance, LayerUtil.GetLayersIntersectWithSkillProjectile(true)))
{
return(hitInfo.collider.attachedRigidbody?.GetComponent <BaseEntity>());
}
else
{
return(null);
}
}
/// <summary>
/// 中心点射线选中的目标
/// </summary>
/// <returns></returns>
private SpacecraftEntity GetTargetSelectedByCenterRay()
{
PlayerSkillVO skillVO = m_PlayerSkillProxy.GetCurrentWeaponSkill();
SkillSystemGrow skillGrow = skillVO.GetSkillGrow();
float maxDistance = skillGrow.Range * SceneController.SPACE_ACCURACY_TO_CLIENT;
MainCameraComponent mainCam = CameraManager.GetInstance().GetMainCamereComponent();
Ray ray = new Ray(mainCam.GetPosition(), mainCam.GetForward());
RaycastHit hitInfo = new RaycastHit();
if (Physics.Raycast(ray, out hitInfo, maxDistance, LayerUtil.GetLayersIntersectWithSkillProjectile(true)))
{
return(hitInfo.collider.attachedRigidbody?.GetComponent <SpacecraftEntity>());
}
else
{
return(null);
}
}
/// <summary>
/// 选中一个新的目标
/// 1. 与上一帧选中的目标不同
/// 2. 上一帧选中的目标已经锁定完成, 进行下一轮锁定
/// </summary>
/// <returns>是否有新的目标</returns>
private bool PickNewTarget(out SpacecraftEntity newTarget)
{
PlayerSkillVO skillVO = m_PlayerSkillProxy.GetCurrentWeaponSkill();
SkillSystemGrow skillGrow = skillVO.GetSkillGrow();
float maxDistance = skillGrow.Range * SceneController.SPACE_ACCURACY_TO_CLIENT;
MainCameraComponent mainCam = CameraManager.GetInstance().GetMainCamereComponent();
Ray ray = new Ray(mainCam.GetPosition(), mainCam.GetForward());
RaycastHit hitInfo = new RaycastHit();
// UNDONE
// 第一版: 使用屏幕中心射线作为目标选取射线. NOW
// 第二版: 使用 Physics.BoxCast
if (Physics.Raycast(ray, out hitInfo, maxDistance, LayerUtil.GetLayersIntersectWithSkillProjectile(true)))
{
SpacecraftEntity pickedTarget = hitInfo.collider.attachedRigidbody?.GetComponent <SpacecraftEntity>();
newTarget = pickedTarget;
return(true);
}
else
{
newTarget = null;
return(false);
}
}