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| using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
namespace Gameplay
{
public class UIModelManager : ManagerBase
{
private Stack<Camera> m_CameraPool = new Stack<Camera>();
private Stack<int> m_IndexPool = new Stack<int>();
private int m_PoolCount = 0;
private Transform m_UIModelRoot;
private Light m_UIModelLight;
public override void OnInitilize()
{
base.OnInitilize();
m_UIModelRoot = new GameObject("UIModelRoot").transform;
m_UIModelRoot.SetParentEx(null);
GameObject.DontDestroyOnLoad(m_UIModelRoot);
m_UIModelLight = new GameObject("UIModelLight").GetOrAddComponent<Light>();
m_UIModelLight.transform.SetParentEx(m_UIModelRoot);
m_UIModelLight.transform.localEulerAngles = new Vector3(36, 30, 0);
m_UIModelLight.cookieSize = 10;
m_UIModelLight.type = LightType.Directional;
m_UIModelLight.cullingMask = 1 << Constant.Layer.UI | 1 << Constant.Layer.UIRenderToTarget;
m_UIModelLight.shadows = LightShadows.None;
m_UIModelLight.gameObject.SetActive(false);
}
/// <summary>
/// 加载一个模型到一张RawImage上
/// </summary>
public void LoadModelToRawImage(string path, RawImage rawImage, bool canDrag = true, Vector3 offset = default,
Quaternion rot = default, Vector3 scale = default, Action<UIRenderToTexture, GameObject> callback = null)
{
if (rawImage == null)
{
Debug.LogError("RawImage Is Null!");
return;
}
Hooks.GameObjectManager.SpawnAsync(path, (go) => {
if (go != null)
{
UIRenderToTexture renderToTexture = rawImage.GetComponent<UIRenderToTexture>();
Vector3 pos;
if (renderToTexture == null)
{
int index = m_IndexPool.Count > 0 ? m_IndexPool.Pop() : m_PoolCount++;
pos = new Vector3(10 * index, -10000, 0);
renderToTexture = rawImage.GetOrAddComponent<UIRenderToTexture>();
renderToTexture.Init(pos, true, index);
UpdateLight();
}
else
{
pos = new Vector3(10 * renderToTexture.Index, -10000, 0);
}
go.SetLayerRecursively(Constant.Layer.UIRenderToTarget);
go.transform.SetParent(m_UIModelRoot);
go.transform.localPosition = pos + offset;
go.transform.localScale = scale == default ? Vector3.one : scale;
go.transform.rotation = rot;
renderToTexture.AddTarget(go, canDrag);
callback?.Invoke(renderToTexture, go);
}
});
}
/// <summary>
/// 卸载单个
/// </summary>
public void UnLoadModelByRawImage(RawImage rawImage, GameObject go)
{
if (rawImage != null && go != null)
{
UIRenderToTexture renderToTexture = rawImage.GetComponent<UIRenderToTexture>();
int id = go.GetInstanceID();
if (renderToTexture != null && renderToTexture.Targets != null && renderToTexture.Targets.ContainsKey(id))
{
renderToTexture.Targets.Remove(id);
Hooks.GameObjectManager.Recycle(go);
if (renderToTexture.Targets.Count == 0)
{
renderToTexture.ResetTarget();
m_IndexPool.Push(renderToTexture.Index);
}
}
UpdateLight();
}
}
/// <summary>
/// 卸载所有
/// </summary>
public void UnLoadModelByRawImage(RawImage rawImage)
{
if (rawImage != null)
{
UIRenderToTexture renderToTexture = rawImage.GetComponent<UIRenderToTexture>();
if (renderToTexture != null && renderToTexture.Targets != null)
{
foreach (var target in renderToTexture.Targets.Values)
{
Hooks.GameObjectManager.Recycle(target.gameObject);
}
renderToTexture.ResetTarget();
m_IndexPool.Push(renderToTexture.Index);
}
UpdateLight();
}
}
private void UpdateLight()
{
m_UIModelLight.gameObject.SetActive(m_CameraPool.Count < m_PoolCount);
}
public Camera SpawnCamera()
{
if (m_CameraPool.Count > 0)
{
Camera camera = m_CameraPool.Pop();
camera.gameObject.SetActive(true);
return camera;
}
else
{
GameObject go = new GameObject("CameraRTT");
go.transform.SetParentEx(m_UIModelRoot);
Camera camera = go.GetOrAddComponent<Camera>();
camera.fieldOfView = 30;
camera.allowHDR = false;
camera.backgroundColor = Color.clear;
camera.useOcclusionCulling = false;
camera.clearFlags = CameraClearFlags.SolidColor;
camera.cullingMask = 1 << Constant.Layer.UIRenderToTarget;
camera.farClipPlane = 30;
camera.orthographicSize = 1;
return camera;
}
}
public void RecyleCamera(Camera camera)
{
if (camera != null)
{
camera.targetTexture = null;
camera.gameObject.SetActive(false);
m_CameraPool.Push(camera);
}
}
}
public class UIRenderToTexture : MonoBehaviour, IDragHandler, IBeginDragHandler, IEndDragHandler, IPointerClickHandler
{
public struct Target
{
public GameObject gameObject;
public bool canDrag;
}
private Camera m_Camera;
private RawImage m_RawImage;
private RenderTexture m_RenderTexture;
private Dictionary<int, Target> m_Targets;
private int m_Index;
private Transform m_DragTarget;
public Dictionary<int, Target> Targets => m_Targets;
public int Index => m_Index;
void OnEnable()
{
InitCamera();
if (m_RawImage == null)
m_RawImage = GetComponent<RawImage>();
if (m_Targets != null)
{
foreach (var target in m_Targets.Values)
{
if(target.gameObject != null)
target.gameObject.SetActive(true);
}
}
if (m_RenderTexture == null)
{
m_RenderTexture = RenderTexture.GetTemporary((int)m_RawImage.rectTransform.rect.width, (int)m_RawImage.rectTransform.rect.height, 1);
m_RenderTexture.name = "UIRenderToTexture";
}
m_Camera.targetTexture = m_RenderTexture;
m_RawImage.texture = m_RenderTexture;
}
void OnDisable()
{
if (m_Targets != null)
{
foreach (var target in m_Targets.Values)
{
if(target.gameObject != null)
target.gameObject.SetActive(true);
}
}
if (m_Camera != null)
Hooks.UIModelManager.RecyleCamera(m_Camera);
ReleaseRenderTexture();
}
void OnDestroy()
{
if (m_Camera != null)
Hooks.UIModelManager.RecyleCamera(m_Camera);
ReleaseRenderTexture();
}
private void InitCamera(bool orth = true)
{
if (m_Camera == null)
{
m_Camera = Hooks.UIModelManager.SpawnCamera();
}
else
{
m_Camera.gameObject.SetActive(true);
}
m_Camera.orthographic = orth;
}
private void ReleaseRenderTexture()
{
if (m_RenderTexture != null)
{
RenderTexture.ReleaseTemporary(m_RenderTexture);
m_RenderTexture = null;
m_RawImage.texture = null;
}
}
public void Init(Vector3 vec, bool orth, int index)
{
InitCamera(orth);
m_Index = index;
if (m_Camera)
{
m_Camera.transform.localPosition = vec + new Vector3(0, 0, 20);
m_Camera.transform.localEulerAngles = new Vector3(0, 180, 0);
}
}
public void AddTarget(GameObject target, bool canDrag)
{
if (target)
{
if (m_Targets == null)
m_Targets = new Dictionary<int, Target>();
m_Targets.Add(target.GetInstanceID(), new Target { gameObject = target, canDrag = canDrag });
}
}
public void ResetTarget()
{
m_Targets.Clear();
m_Targets = null;
if (m_Camera != null)
Hooks.UIModelManager.RecyleCamera(m_Camera);
ReleaseRenderTexture();
}
private void Update()
{
if (m_Targets != null)
{
foreach (var target in m_Targets.Values)
{
if(m_DragTarget == null || m_DragTarget.gameObject != target.gameObject)
target.gameObject.transform.rotation = Quaternion.Lerp(target.gameObject.transform.rotation, Quaternion.identity, Time.deltaTime * 5);
}
}
}
private void SetClickTarget(Vector2 clickPos)
{
// 通过射线检测当前点击的模型
// 拿到点击位置与UI位置的偏移百分比
Camera uiCamera = Hooks.CameraManager.UICamera;
float width = m_RawImage.rectTransform.rect.width;
float height = m_RawImage.rectTransform.rect.height;
Vector2 screenPos = RectTransformUtility.WorldToScreenPoint(uiCamera, transform.position);
screenPos += new Vector2(width * (0.5f - m_RawImage.rectTransform.pivot.x), height * (0.5f - m_RawImage.rectTransform.pivot.y));
Vector2 offset = clickPos - screenPos;
offset = new Vector2(offset.x / width, offset.y / height);
if (m_Camera.orthographic)
{
// 正交相机的渲染大小height=size*2， width = 宽高比*height
float screenHeight = m_Camera.orthographicSize * 2;
float screenWidth = m_Camera.pixelWidth * 1.0f / m_Camera.pixelHeight * screenHeight;
Vector3 startPoint = m_Camera.transform.position + m_Camera.transform.right * offset.x * screenWidth + m_Camera.transform.up * offset.y * screenHeight;
Debug.DrawLine(startPoint, startPoint + m_Camera.transform.forward * 100, Color.red, 5f);
if (Physics.Raycast(startPoint, m_Camera.transform.forward, out RaycastHit hit, 100, 1 << Constant.Layer.UIRenderToTarget))
{
m_DragTarget = hit.transform;
}
}
else
{
// 透视相机通过FOV和near可以求height， width同正交相机
float screenHeight = Mathf.Tan(m_Camera.fieldOfView * 0.5f * Mathf.Deg2Rad) * m_Camera.nearClipPlane * 2;
float screenWidth = m_Camera.pixelWidth * 1.0f / m_Camera.pixelHeight * screenHeight;
Vector3 endPoint = m_Camera.transform.position + m_Camera.transform.forward * m_Camera.nearClipPlane
+ m_Camera.transform.right * offset.x * screenWidth + m_Camera.transform.up * offset.y * screenHeight;
Vector3 dir = (endPoint - m_Camera.transform.position).normalized;
Debug.DrawLine(m_Camera.transform.position, endPoint, Color.red, 5f);
if (Physics.Raycast(m_Camera.transform.position, dir, out RaycastHit hit, m_Camera.farClipPlane, 1 << Constant.Layer.UIRenderToTarget))
{
m_DragTarget = hit.transform;
}
}
}
public void OnBeginDrag(PointerEventData eventData)
{
m_DragTarget = null;
SetClickTarget(eventData.position);
// 不能拖拽时置空
if (m_DragTarget != null && m_Targets.TryGetValue(m_DragTarget.GetInstanceID(), out Target target) && !target.canDrag)
{
m_DragTarget = null;
}
}
public void OnDrag(PointerEventData eventData)
{
if (m_DragTarget != null)
m_DragTarget.localEulerAngles -= new Vector3(0, eventData.delta.x, 0);
}
public void OnEndDrag(PointerEventData eventData)
{
m_DragTarget = null;
}
public void OnPointerClick(PointerEventData eventData)
{
m_DragTarget = null;
SetClickTarget(eventData.position);
if (m_DragTarget != null)
{
// 点中模型，发送事件或者其他操作
}
}
}
}
|
