地图缩放改一下

Assets/AIPagedLod/Scripts/WebGL/CameraBirdSec.cs

@@ -39,12 +39,18 @@ public class CameraBirdSec : MonoBehaviour
 
     public bool fixMoveRange = false;
     public bool detailLod = false;
-    
+
     bool isRotate = false;
 
     bool onUI = false;
+
+    private Vector3 lastMouseMapPoint;
+    private Camera _camera;
+    private bool scrollTargetLock = false;
+
     void Start()
     {
+        _camera = this.GetComponent<Camera>();
         // 计算偏移量
         offset = transform.position - target.position;
     }
@@ -71,6 +77,7 @@ public class CameraBirdSec : MonoBehaviour
                 return true;
             }
         }
+
         return false;
     }
 
@@ -79,28 +86,35 @@ public class CameraBirdSec : MonoBehaviour
         bool specialUI = false;
         if (GetPointerOverUIElement(out GameObject uiElement))
         {
-            
             // 获取 UI 元素的类型
             if (uiElement.TryGetComponent<Button>(out Button button))
             {
-                
-                if (uiElement.transform.TryGetComponent<RuntimePoint>(out RuntimePoint rp)) {
+                if (uiElement.transform.TryGetComponent<RuntimePoint>(out RuntimePoint rp))
+                {
                     specialUI = true;
                 }
             }
         }
+
         // 检查当前鼠标位置是否在 UI 上
         return EventSystem.current.IsPointerOverGameObject() && !specialUI;
     }
+
     void LateUpdate()
     {
         onUI = false;
         if (IsPointerOverUIElement()) onUI = true;
 
-        translateSpeed = currentDistance / 1000.0f; 
+        translateSpeed = currentDistance / 1000.0f;
         // 鼠标滚轮控制摄像头远近
         if (Input.GetAxis("Mouse ScrollWheel") != 0 && !onUI)
         {
+            //定一个鼠标在地图上的位置
+            var mousePos = Input.mousePosition;
+            mousePos.z = math.abs(target.position.z - this.transform.position.z);
+            lastMouseMapPoint = _camera.ScreenToWorldPoint(mousePos);
+            scrollTargetLock = true;
+
             if (detailLod)
             {
                 scrollSensitivity = math.clamp(currentDistance, 0, 10);
@@ -116,30 +130,8 @@ public class CameraBirdSec : MonoBehaviour
             {
                 OnDistanceChange?.Invoke(Input.GetAxis("Mouse ScrollWheel"));
             }
-
-            if (Input.GetAxis("Mouse ScrollWheel") > 0)
-            {
-                //Debug.Log($"{Input.mousePosition} {Screen.width*0.5f}:{Screen.height*0.5f}");
-                float offSetX =  (Screen.width * 0.5f-Input.mousePosition.x) / Screen.width;
-                float offSetY =   (Screen.height * 0.5f-Input.mousePosition.y) / Screen.height;
-                Vector3 moveDirection = Vector3.down * offSetY*translateSpeed * 110 * 9.0f / 16.0f + Vector3.left * offSetX* translateSpeed * 110;
-                // 平滑移动摄像头到目标位置
-                float cameraDistanceRange = Mathf.Clamp(currentDistance * 1.0f / maxDistance * 1.0f, 0.5f, 0.9f); 
-                target.position += moveDirection*cameraDistanceRange;
-                //限制移动范围
-                if (fixMoveRange)
-                {
-                    Vector3 finalPos=target.localPosition;
-                    finalPos.x = Mathf.Clamp(finalPos.x, min_X, max_X);
-                    finalPos.y = Mathf.Clamp(finalPos.y, min_Y, max_Y);
-                    target.localPosition = finalPos;
-                }
-                Vector3 targetPosition = target.position + Quaternion.Euler(new Vector3(rotateXAngle, 0, 0)) * offset.normalized * currentDistance;
-                // 摄像头平滑移动到目标位置
-                transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * smoothSpeed*2);
-            }
         }
-      
+
         // 鼠标左键拖拽平移摄像头
         if (Input.GetMouseButtonDown(1) && !onUI)
         {
@@ -157,28 +149,29 @@ public class CameraBirdSec : MonoBehaviour
             // 计算鼠标移动的偏移量
             Vector3 mouseOffset = Input.mousePosition - lastMousePosition;
             // 根据偏移量计算摄像头的目标位置
-            Vector3 moveDirection = Vector3.down * mouseOffset.y * translateSpeed + Vector3.left * mouseOffset.x * translateSpeed;
+            Vector3 moveDirection = Vector3.down * mouseOffset.y * translateSpeed +
+                                    Vector3.left * mouseOffset.x * translateSpeed;
             // 平滑移动摄像头到目标位置
             target.position += moveDirection;
             //限制移动范围
             if (fixMoveRange)
             {
-                Vector3 finalPos=target.localPosition;
+                Vector3 finalPos = target.localPosition;
                 finalPos.x = Mathf.Clamp(finalPos.x, min_X, max_X);
                 finalPos.y = Mathf.Clamp(finalPos.y, min_Y, max_Y);
                 target.localPosition = finalPos;
             }
-            
+
             // 计算目标位置
-            Vector3 targetPosition = target.position + Quaternion.Euler(new Vector3(rotateXAngle, 0, 0)) * offset.normalized * currentDistance;
+            Vector3 targetPosition = target.position +
+                                     Quaternion.Euler(new Vector3(rotateXAngle, 0, 0)) * offset.normalized *
+                                     currentDistance;
 
             // 摄像头平滑移动到目标位置
             transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * smoothSpeed * 2);
         }
         else
         {
-
-
             if (isRotate)
             {
                 Blink();
@@ -186,16 +179,35 @@ public class CameraBirdSec : MonoBehaviour
             else
             {
                 // 计算目标位置
-                Vector3 targetPosition = target.position + Quaternion.Euler(new Vector3(rotateXAngle, rotateYAngle, 0)) * offset.normalized * currentDistance;
-
+                Vector3 targetPosition = target.position +
+                                         Quaternion.Euler(new Vector3(rotateXAngle, rotateYAngle, 0)) *
+                                         offset.normalized * currentDistance;
                 // 摄像头平滑移动到目标位置
-                transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * smoothSpeed);
+                //transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * smoothSpeed);
+                transform.position = targetPosition; //Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * smoothSpeed);
+
                 //if (Vector3.Distance(transform.position, targetPosition) < 1) {
                 //    transform.position = targetPosition;
                 //}
+                if (scrollTargetLock)
+                {
+                    //现在鼠标位置在地图上的点
+                    var mousePos = Input.mousePosition;
+                    mousePos.z = math.abs(target.position.z - this.transform.position.z);
+                    var nowMouseMapPoint = _camera.ScreenToWorldPoint(mousePos);
+                    var mouseMoveDir = (nowMouseMapPoint - lastMouseMapPoint).normalized;
+                    var mouseMoveDistance = Vector3.Distance(nowMouseMapPoint, lastMouseMapPoint);
+                    target.position -= mouseMoveDir * mouseMoveDistance;
+                    if (fixMoveRange)
+                    {
+                        Vector3 finalPos = target.localPosition;
+                        finalPos.x = Mathf.Clamp(finalPos.x, min_X, max_X);
+                        finalPos.y = Mathf.Clamp(finalPos.y, min_Y, max_Y);
+                        target.localPosition = finalPos;
+                    }
+                    scrollTargetLock = false;
+                }
             }
-
-
         }
 
 
@@ -205,27 +217,27 @@ public class CameraBirdSec : MonoBehaviour
     public void Blink()
     {
         // 计算目标位置
-        Vector3 targetPosition = target.position + Quaternion.Euler(new Vector3(rotateXAngle, rotateYAngle, 0)) * offset.normalized * currentDistance;
+        Vector3 targetPosition = target.position + Quaternion.Euler(new Vector3(rotateXAngle, rotateYAngle, 0)) *
+            offset.normalized * currentDistance;
 
         // 摄像头平滑移动到目标位置
         transform.position = targetPosition;
 
         //摄像头朝向目标对象
         transform.rotation = Quaternion.LookRotation(target.position - this.transform.position, Vector3.up);
-
     }
 
-    public void SetRange(float _minX,float _maxX,float _minY,float _maxY)
+    public void SetRange(float _minX, float _maxX, float _minY, float _maxY)
     {
         min_X = _minX;
         max_X = _maxX;
         min_Y = _minY;
         max_Y = _maxY;
-        
+
         //限制移动范围
         if (fixMoveRange)
         {
-            Vector3 finalPos=target.localPosition;
+            Vector3 finalPos = target.localPosition;
             finalPos.x = Mathf.Clamp(finalPos.x, min_X, max_X);
             finalPos.y = Mathf.Clamp(finalPos.y, min_Y, max_Y);
             target.localPosition = finalPos;
@@ -233,26 +245,21 @@ public class CameraBirdSec : MonoBehaviour
     }
 
 
-    public void SetCameraToCenterFade(Vector3 centerPos,float distance = 300)
+    public void SetCameraToCenterFade(Vector3 centerPos, float distance = 300)
     {
         MeshRenderer fader = this.transform.GetChild(0).GetComponent<MeshRenderer>();
         fader.gameObject.SetActive(true);
         fader.material.DOColor(Color.white, 0.1f).onComplete = () =>
         {
-            fader.material.DOColor(Color.clear, 1.5f).onComplete = () =>
-            {
-                fader.gameObject.SetActive(false);
-            };
-
+            fader.material.DOColor(Color.clear, 1.5f).onComplete = () => { fader.gameObject.SetActive(false); };
         };
 
         this.target.localPosition = centerPos;
-        DOTween.To(()=>this.currentDistance,x=>this.currentDistance=x, distance,0.5f);
+        DOTween.To(() => this.currentDistance, x => this.currentDistance = x, distance, 0.5f);
         this.Blink();
     }
 
     void Update()
     {
-
     }
-}
+}