Теперь мы должны написать скрипт, который будет
транслировать в сеть все твердые тела (Rigidbody).
Первым делом вы должны создать две папки под названием NetworkFIles для
новых скриптов, и Plugins для C#
скриптов.
Создайте C# скрипт и назовите его NetworkRigidbody.
Переместите
NetworkRigidbody в папку Plugins. Вы можете использовать
данный скрипт и в других своих проектах, так что лучше не удаляйте его. А
теперь откройте его и введите туда:
- using UnityEngine;
- using System.Collections;
- public class NetworkRigidbody : MonoBehaviour {
- public double m_InterpolationBackTime = 0.1;
- public double m_ExtrapolationLimit = 0.5;
- internal struct State
- {
- internal double timestamp;
- internal Vector3 pos;
- internal Vector3 velocity;
- internal Quaternion rot;
- internal Vector3 angularVelocity;
- }
- // We store twenty states with "playback" information
- State[] m_BufferedState = new State[20];
- // Keep track of what slots are used
- int m_TimestampCount;
- void OnSerializeNetworkView(BitStream stream, NetworkMessageInfo info)
{
- // Send data to server
- if (stream.isWriting)
- {
- Vector3 pos = rigidbody.position;
- Quaternion rot = rigidbody.rotation;
- Vector3 velocity = rigidbody.velocity;
- Vector3 angularVelocity = rigidbody.angularVelocity;
- stream.Serialize(ref pos);
- stream.Serialize(ref velocity);
- stream.Serialize(ref rot);
- stream.Serialize(ref angularVelocity);
- }
- // Read data from remote client
- else
- {
- Vector3 pos = Vector3.zero;
- Vector3 velocity = Vector3.zero;
- Quaternion rot = Quaternion.identity;
- Vector3 angularVelocity = Vector3.zero;
- stream.Serialize(ref pos);
- stream.Serialize(ref velocity);
- stream.Serialize(ref rot);
- stream.Serialize(ref angularVelocity);
- // Shift the buffer sideways, deleting state 20
- for (int i=m_BufferedState.Length-1;i>=1;i--)
- {
- m_BufferedState[i] = m_BufferedState[i-1];
- }
- // Record current state in slot 0
- State state;
- state.timestamp = info.timestamp;
- state.pos = pos;
- state.velocity = velocity;
- state.rot = rot;
- state.angularVelocity = angularVelocity;
- m_BufferedState[0] = state;
- // Update used slot count, however never exceed the buffer size
- // Slots aren't actually freed so this just makes sure the buffer is
- // filled up and that uninitalized slots aren't used.
- m_TimestampCount = Mathf.Min(m_TimestampCount + 1,
- m_BufferedState.Length);
- // Check if states are in order, if it is inconsistent you could
reshuffel or
- // drop the out-of-order state. Nothing is done here
- for (int i=0;i<m_TimestampCount-1;i++)
- {
- if (m_BufferedState[i].timestamp < m_BufferedState[i+1].timestamp)
- Debug.Log("State inconsistent");
- }
- }
- }
- // We have a window of interpolationBackTime where we basically play
- // By having interpolationBackTime the average ping, you will usually
use
- interpolation.
- // And only if no more data arrives we will use extra polation
- void Update () {
- // This is the target playback time of the rigid body
- double interpolationTime = Network.time - m_InterpolationBackTime;
- // Use interpolation if the target playback time is present in the
buffer
- if (m_BufferedState[0].timestamp > interpolationTime)
- {
- // Go through buffer and find correct state to play back
- for (int i=0;i<m_TimestampCount;i++)
- {
- if (m_BufferedState[i].timestamp <= interpolationTime || i ==
- m_TimestampCount-1)
- {
- // The state one slot newer (<100ms) than the best playback state
- State rhs = m_BufferedState[Mathf.Max(i-1, 0)];
- // The best playback state (closest to 100 ms old (default time))
- State lhs = m_BufferedState[i];
- // Use the time between the two slots to determine if interpolation is
- necessary
- double length = rhs.timestamp - lhs.timestamp;
- float t = 0.0F;
- // As the time difference gets closer to 100 ms t gets closer to 1 in
- // which case rhs is only used
- // Example:
- // Time is 10.000, so sampleTime is 9.900
- // lhs.time is 9.910 rhs.time is 9.980 length is 0.070
- // t is 9.900 - 9.910 / 0.070 = 0.14. So it uses 14% of rhs, 86% of
- lhs
- if (length > 0.0001)
- t = (float)((interpolationTime - lhs.timestamp) / length);
- // if t=0 => lhs is used directly
- transform.localPosition = Vector3.Lerp(lhs.pos, rhs.pos, t);
- transform.localRotation = Quaternion.Slerp(lhs.rot, rhs.rot, t);
- return;
- }
- }
- }
- // Use extrapolation
- else
- {
- State latest = m_BufferedState[0];
- float extrapolationLength = (float)(interpolationTime -
latest.timestamp);
- // Don't extrapolation for more than 500 ms, you would need to do that
- carefully
- if (extrapolationLength < m_ExtrapolationLimit)
- {
- float axisLength = extrapolationLength *
latest.angularVelocity.magnitude
- * Mathf.Rad2Deg;
- Quaternion angularRotation = Quaternion.AngleAxis(axisLength,
- latest.angularVelocity);
- rigidbody.position = latest.pos + latest.velocity *
extrapolationLength;
- rigidbody.rotation = angularRotation * latest.rot;
- rigidbody.velocity = latest.velocity;
- rigidbody.angularVelocity = latest.angularVelocity;
- }
- }
- }
- }
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Выберите
SpaceCraftFBX в иерархии, НЕ В ФАЙЛАХ ПРОЕКТА, и перетащите в
него скрипт NetworkRigidbody. И отключите его в самом объекте(просто убрать
галочку с компонента).
В
компоненте NetworkView измените параметр Observed
с SpaceCraftFBX
(Transform) на SpaceCraftFBX
(NetworkRigidbody).
Создайте новый джаваскрипт
скрипт и назовите его RigidAssign,
откройте его и введите туда:
- function OnNetworkInstantiate (msg : NetworkMessageInfo) {
- if (networkView.isMine)
- {
- var _NetworkRigidbody : NetworkRigidbody =
- GetComponent("NetworkRigidbody");
- _NetworkRigidbody.enabled = false;
- }
- else
- {
- name += "Remote";
- var _NetworkRigidbody2 : NetworkRigidbody =
- GetComponent("NetworkRigidbody");
- _NetworkRigidbody2.enabled =
true;
- }
- }
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Создайте новый префаб и назовите его SpaceCraft, переместите его в папку Prefabs. Дальше перетащите SpaceCraftFBX в иерархии
в префаб SpaceCraft и удалите
модель (SpaceCraftFBX) со
сцены. Теперь создайте тег «SpaceCraft»: Edit -> Project Settings-> Tags.
Выделите
префаб и кликните по полю "Untagged”, выйдет выпадающее окно в котором нужно выбрать «SpaceSraft».
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