/// <summary>
/// Check if the specified bounds intersect with anything in the tree. See also: GetColliding.
/// </summary>
/// <param name="checkBounds">Bounds to check.</param>
/// <returns>True if there was a collision.</returns>
public bool IsColliding(ColliderProxy obj, ref LRect checkBounds)
{
// Are the input bounds at least partially in this node?
if (!bounds.Overlaps(checkBounds))
{
return(false);
}
// Check against any objects in this node
for (int i = 0; i < objects.Count; i++)
{
var o = objects[i];
if (!ReferenceEquals(o.Obj, obj) && o.Bounds.Overlaps(checkBounds))
{
return(true);
}
}
// Check children
if (children != null)
{
for (int i = 0; i < NUM_CHILDREN; i++)
{
if (children[i].IsColliding(obj, ref checkBounds))
{
return(true);
}
}
}
return(false);
}
public void CheckCollision(ColliderProxy obj, ref LRect checkBounds)
{
// Are the input bounds at least partially in this node?
if (!bounds.Overlaps(checkBounds))
{
return;
}
// Check against any objects in this node
for (int i = 0; i < objects.Count; i++)
{
var o = objects[i];
if (!ReferenceEquals(o.Obj, obj) &&
BoundsQuadTree.FuncCanCollide(o.Obj, obj) &&
o.Bounds.Overlaps(checkBounds)
)
{
BoundsQuadTree.funcOnCollide(obj, o.Obj);
}
}
// Check children
if (children != null)
{
for (int i = 0; i < NUM_CHILDREN; i++)
{
children[i].CheckCollision(obj, ref checkBounds);
}
}
}
/// <summary>
/// Private counterpart to the public <see cref="Remove(ColliderProxy, LRect)"/> method.
/// </summary>
/// <param name="obj">Object to remove.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
/// <returns>True if the object was removed successfully.</returns>
bool SubRemove(ColliderProxy obj, LRect objBounds)
{
bool removed = false;
for (int i = 0; i < objects.Count; i++)
{
if (ReferenceEquals(objects[i].Obj, obj))
{
removed = objects.Remove(objects[i]);
break;
}
}
if (!removed && children != null)
{
int bestFitChild = BestFitChild(objBounds.center);
removed = children[bestFitChild].SubRemove(obj, objBounds);
}
if (removed && children != null)
{
// Check if we should merge nodes now that we've removed an item
if (ShouldMerge())
{
Merge();
}
}
return(removed);
}
/// <summary>
/// Remove an object. Makes the assumption that the object only exists once in the tree.
/// </summary>
/// <param name="obj">Object to remove.</param>
/// <returns>True if the object was removed successfully.</returns>
public bool Remove(ColliderProxy obj)
{
if (obj2Node.TryGetValue(obj, out var val))
{
obj2Node.Remove(obj);
bool removed = false;
for (int i = 0; i < val.objects.Count; i++)
{
if (ReferenceEquals(val.objects[i].Obj, obj))
{
val.objects.RemoveAt(i);
removed = true;
break;
}
}
if (removed)
{
val.OnRemoved();
}
return(removed);
}
return(false);
}
bool NeedCheck(ColliderProxy a, ColliderProxy b)
{
var val = _collisionMask[a.LayerType];
var val2 = 1 << b.LayerType;
var needCheck = (val & val2) != 0;
return(needCheck);
}
private void _CheckRegionCircle(ColliderProxy obj)
{
Debug.Trace($"ColliderProxy _CheckRegionCircle {obj.Id} trans{obj.Transform2D} col{obj.Prefab}");
if (CollisionHelper.CheckCollision(obj.Prefab, obj.Transform2D, _tempPos, _tempRadius))
{
tempCallback(obj);
}
}
private void _CheckRegionOBB(ColliderProxy obj)
{
Debug.Trace($"ColliderProxy _CheckRegionOBB {obj.Id} trans{obj.Transform2D} col{obj.Prefab}");
if (CollisionHelper.CheckCollision(obj.Prefab, obj.Transform2D, _tempPos, _tempSize, _tempForward))
{
tempCallback(obj);
}
}
/// <summary>
/// Check if the specified bounds intersect with anything in the tree. See also: GetColliding.
/// </summary>
/// <param name="checkBounds">bounds to check.</param>
/// <returns>True if there was a collision.</returns>
public bool IsColliding(ColliderProxy obj, LRect checkBounds)
{
//#if UNITY_EDITOR
// For debugging
//AddCollisionCheck(checkBounds);
//#endif
return(rootNode.IsColliding(obj, ref checkBounds));
}
/// <summary>
/// Removes the specified object at the given position. Makes the assumption that the object only exists once in the tree.
/// </summary>
/// <param name="obj">Object to remove.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
/// <returns>True if the object was removed successfully.</returns>
public bool Remove(ColliderProxy obj, LRect objBounds)
{
if (!Encapsulates(bounds, objBounds))
{
return(false);
}
return(false);
}
// #### PUBLIC METHODS ####
// #### PUBLIC METHODS ####
public BoundsQuadTreeNode GetNode(ColliderProxy obj)
{
if (BoundsQuadTreeNode.obj2Node.TryGetValue(obj, out var val))
{
return(val);
}
return(null);
}
/// <summary>
/// Add an object.
/// </summary>
/// <param name="obj">Object to add.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
/// <returns>True if the object fits entirely within this node.</returns>
public bool Add(ColliderProxy obj, LRect objBounds)
{
if (!Encapsulates(bounds, objBounds))
{
return(false);
}
SubAdd(obj, objBounds);
return(true);
}
private ColliderProxy CreateType(int layerType, bool isStatic, Color rawColor)
{
var prefab = prefabs[Random.Range(0, prefabs.Count)];
var type = (EShape2D)prefab.collider.TypeId;
var obj = GameObject.CreatePrimitive(type2PType[type]).GetComponent <Collider>();
obj.transform.SetParent(transform, false);
obj.transform.position = new Vector3(Random.Range(-halfworldSize, halfworldSize), 0,
Random.Range(-halfworldSize, halfworldSize));
switch (type)
{
case EShape2D.Circle: {
var colInfo = (CCircle)prefab.collider;
obj.transform.localScale =
new Vector3(colInfo.radius.ToFloat() * 2, 1, colInfo.radius.ToFloat() * 2);
break;
}
case EShape2D.AABB: {
var colInfo = (CAABB)prefab.collider;
obj.transform.localScale =
new Vector3(colInfo.size.x.ToFloat() * 2, 1, colInfo.size.y.ToFloat() * 2);
break;
}
case EShape2D.OBB: {
var colInfo = (COBB)prefab.collider;
obj.transform.localScale =
new Vector3(colInfo.size.x.ToFloat() * 2, 1, colInfo.size.y.ToFloat() * 2);
break;
}
}
var proxy = new ColliderProxy();
proxy.Init(prefab, obj.transform.position.ToLVector2XZ());
proxy.UnityTransform = obj.transform;
var mono = obj.gameObject.AddComponent <ColliderProxyMono>();
mono.proxy = proxy;
if (!isStatic)
{
var mover = obj.gameObject.AddComponent <RandomMove>();
mover.halfworldSize = halfworldSize;
mover.isNeedRotate = type == EShape2D.OBB;
}
proxy.IsStatic = isStatic;
proxy.LayerType = layerType;
mono.rawColor = rawColor;
return(proxy);
}
public void UpdateObj(ColliderProxy obj, LRect bound)
{
for (int i = 0; i < objects.Count; i++)
{
if (ReferenceEquals(objects[i].Obj, obj))
{
objects[i] = new OctreeObject()
{
Obj = obj, Bounds = bound
};
}
}
}
/// <summary>
/// Removes the specified object at the given position. Makes the assumption that the object only exists once in the tree.
/// </summary>
/// <param name="obj">Object to remove.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
/// <returns>True if the object was removed successfully.</returns>
public bool Remove(ColliderProxy obj, LRect objBounds)
{
bool removed = rootNode.Remove(obj, objBounds);
// See if we can shrink the octree down now that we've removed the item
if (removed)
{
Count--;
Shrink();
}
return(removed);
}
/// <summary>
/// Removes the specified object at the given position. Makes the assumption that the object only exists once in the tree.
/// </summary>
/// <param name="obj">Object to remove.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
/// <returns>True if the object was removed successfully.</returns>
public bool Remove(ColliderProxy obj, LRect objBounds)
{
Debug.Trace($"ColliderProxy Add { obj.Id} objBounds {objBounds}");
bool removed = rootNode.Remove(obj, objBounds);
// See if we can shrink the octree down now that we've removed the item
if (removed)
{
Count--;
Shrink();
}
return(removed);
}
void OnTriggerEvent(ColliderProxy other, ECollisionEvent type)
{
hasCollided = true;
if (IsDebug)
{
if (type != ECollisionEvent.Stay)
{
Debug.Log(type);
}
}
if (proxy.IsStatic)
{
int i = 0;
}
}
public void NotifyCollisionEvent(ColliderProxy a, ColliderProxy b, ECollisionEvent type)
{
funcGlobalOnTriggerEvent?.Invoke(a, b, type);
if (!a.IsStatic)
{
a.OnTriggerEvent?.Invoke(b, type);
//TriggerEvent(a, b, type);
}
if (!b.IsStatic)
{
b.OnTriggerEvent?.Invoke(a, type);
//TriggerEvent(b, a, type);
}
}
public void OnQuadTreeCollision(ColliderProxy a, ColliderProxy b)
{
var pairId = (((long)a.Id) << 32) + b.Id;
if (_curPairs.Contains(pairId))
{
return;
}
bool isCollided = CollisionHelper.CheckCollision
(a.Prefab, a.Transform2D, b.Prefab, b.Transform2D);
if (isCollided)
{
_curPairs.Add(pairId);
var type = _prePairs.Contains(pairId) ? ECollisionEvent.Stay : ECollisionEvent.Enter;
NotifyCollisionEvent(a, b, type);
}
}
/// <summary>
/// Add an object.
/// </summary>
/// <param name="obj">Object to add.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
public void Add(ColliderProxy obj, LRect objBounds)
{
// Add object or expand the octree until it can be added
int count = 0; // Safety check against infinite/excessive growth
while (!rootNode.Add(obj, objBounds))
{
Debug.LogError("Grow");
Grow(objBounds.center - rootNode.Center);
if (++count > 20)
{
Debug.LogError("Aborted Add operation as it seemed to be going on forever (" + (count - 1) +
") attempts at growing the octree.");
return;
}
}
Count++;
}
public static void TriggerEvent(ILPTriggerEventHandler a, ColliderProxy other, ECollisionEvent type)
{
switch (type)
{
case ECollisionEvent.Enter: {
a.OnLPTriggerEnter(other);
break;
}
case ECollisionEvent.Stay: {
a.OnLPTriggerStay(other);
break;
}
case ECollisionEvent.Exit: {
a.OnLPTriggerExit(other);
break;
}
}
}
void TriggerEvent(ColliderProxy a, ColliderProxy other, ECollisionEvent type)
{
switch (type)
{
case ECollisionEvent.Enter: {
a.OnTriggerEnter(other);
break;
}
case ECollisionEvent.Stay: {
a.OnTriggerStay(other);
break;
}
case ECollisionEvent.Exit: {
a.OnTriggerExit(other);
break;
}
}
}
public void UpdateObj(ColliderProxy obj, LRect bound)
{
var node = GetNode(obj);
if (node == null)
{
Add(obj, bound);
}
else
{
if (!node.ContainBound(bound))
{
Remove(obj);
Add(obj, bound);
}
else
{
node.UpdateObj(obj, bound);
}
}
}
public void UpdateObj(ColliderProxy obj, LRect bound)
{
Debug.Trace($"ColliderProxy UpdateObj { obj.Id} objBounds {bound}");
var node = GetNode(obj);
if (node == null)
{
Add(obj, bound);
}
else
{
if (!node.ContainBound(bound))
{
Remove(obj);
Add(obj, bound);
}
else
{
node.UpdateObj(obj, bound);
}
}
}
public void CheckCollision(ColliderProxy obj, LRect checkBounds)
{
rootNode.CheckCollision(obj, ref checkBounds);
}
public void CheckCollision(ColliderProxy obj, FuncCollision callback)
{
var checkBounds = LRect.CreateRect(obj.pos, new LVector2(obj.MaxSideSize, obj.MaxSideSize));
rootNode.CheckCollision(ref checkBounds, callback);
}
public void RemoveCollider(ColliderProxy collider)
{
GetBoundTree(collider.LayerType).Remove(collider);
id2Proxy.Remove(collider.Id);
_id2LastMovePos.Remove(collider.Id);
}
//public List<>
public void DoUpdate(LFloat deltaTime)
{
tempLst.Clear();
//deal layer
foreach (var pair in BoundsQuadTreeNode.obj2Node)
{
var val = pair.Key;
if (!val.IsStatic)
{
val.DoUpdate(deltaTime);
if (val.IsMoved)
{
val.IsMoved = false;
tempLst.Add(val);
}
}
}
//Check Collision with static colliders
var staticTree = GetStaticBoundTree();
__DebugColProxy1 = null;
__DebugColProxy2 = null;
foreach (var proxy in tempLst)
{
var lastPos = _id2LastMovePos[proxy.Id];
var curPos = proxy.Pos3;
if (lastPos == curPos)
{
continue;
}
staticTree.CheckCollision(proxy, (ColliderProxy obj) => {
if (__DebugColProxy1 != null)
{
return;
}
if (obj.Id == __DegbuLastCollisionId)
{
}
bool isCollided = CollisionHelper.CheckCollision
(proxy.Prefab, proxy.Transform2D, obj.Prefab, obj.Transform2D);
if (isCollided)
{
__DebugColProxy1 = proxy;
__DebugColProxy2 = obj;
__DegbuLastCollisionId = obj.Id;
//Debug.LogError("碰撞到了静态物体 不让其移动");
proxy.Transform2D.Pos3 = lastPos;
}
});
if (proxy.Transform2D.Pos3 != lastPos)
{
_id2LastMovePos[proxy.Id] = curPos;
}
}
//swap
var temp = _prePairs;
_prePairs = _curPairs;
_curPairs = temp;
_curPairs.Clear();
////class version 1.41ms
Profiler.BeginSample("UpdateObj");
foreach (var val in tempLst)
{
val.IsMoved = false;
var bound = val.GetBounds();
var boundsTree = GetBoundTree(val.LayerType);
boundsTree.UpdateObj(val, bound);
}
Profiler.EndSample();
////0.32~0.42ms
Profiler.BeginSample("CheckCollision");
foreach (var val in tempLst)
{
val.IsMoved = false;
var bound = val.GetBounds();
for (int i = 0; i < LayerCount; i++)
{
if (InterestingMasks[val.LayerType * LayerCount + i])
{
var boundsTree = GetBoundTree(i);
boundsTree.CheckCollision(val, bound);
}
}
}
Profiler.EndSample();
Profiler.BeginSample("CheckLastFrameCollison");
foreach (var pairId in _curPairs)
{
_prePairs.Remove(pairId);
}
//check stay leave event
foreach (var idPair in _prePairs)
{
var a = GetCollider((int)(idPair >> 32));
var b = GetCollider((int)(idPair & 0xffffffff));
if (a == null || b == null)
{
continue;
}
bool isCollided = CollisionHelper.CheckCollision
(a.Prefab, a.Transform2D, b.Prefab, b.Transform2D);
if (isCollided)
{
_curPairs.Add(idPair);
NotifyCollisionEvent(a, b, ECollisionEvent.Stay);
}
else
{
NotifyCollisionEvent(a, b, ECollisionEvent.Exit);
}
}
Profiler.EndSample();
}
/// <summary>
/// Private counterpart to the public Add method.
/// </summary>
/// <param name="obj">Object to add.</param>
/// <param name="objBounds">3D bounding box around the object.</param>
void SubAdd(ColliderProxy obj, LRect objBounds)
{
// We know it fits at this level if we've got this far
// We always put things in the deepest possible child
// So we can skip some checks if there are children aleady
if (!HasChildren)
{
// Just add if few objects are here, or children would be below min size
if (objects.Count < NUM_OBJECTS_ALLOWED || (BaseLength / 2) < minSize)
{
OctreeObject newObj = new OctreeObject {
Obj = obj, Bounds = objBounds
};
objects.Add(newObj);
#if SHOW_NODES
obj.UnityTransform?.SetParent(monoTrans, true);
#endif
obj2Node[obj] = this;
return; // We're done. No children yet
}
// Fits at this level, but we can go deeper. Would it fit there?
// Create the 8 children
int bestFitChild;
if (children == null)
{
Split();
if (children == null)
{
Debug.LogError("Child creation failed for an unknown reason. Early exit.");
return;
}
// Now that we have the new children, see if this node's existing objects would fit there
for (int i = objects.Count - 1; i >= 0; i--)
{
OctreeObject existingObj = objects[i];
// Find which child the object is closest to based on where the
// object's center is located in relation to the octree's center
bestFitChild = BestFitChild(existingObj.Bounds.center);
// Does it fit?
if (Encapsulates(children[bestFitChild].bounds, existingObj.Bounds))
{
children[bestFitChild]
.SubAdd(existingObj.Obj, existingObj.Bounds); // Go a level deeper
objects.Remove(existingObj); // Remove from here
}
}
}
}
// Handle the new object we're adding now
int bestFit = BestFitChild(objBounds.center);
if (Encapsulates(children[bestFit].bounds, objBounds))
{
children[bestFit].SubAdd(obj, objBounds);
}
else
{
// Didn't fit in a child. We'll have to it to this node instead
OctreeObject newObj = new OctreeObject {
Obj = obj, Bounds = objBounds
};
objects.Add(newObj);
obj2Node[obj] = this;
}
}
public void AddCollider(ColliderProxy collider)
{
GetBoundTree(collider.LayerType).Add(collider, collider.GetBounds());
id2Proxy[collider.Id] = collider;
_id2LastMovePos[collider.Id] = collider.Pos3;
}