12 #ifndef Navigation_BestFirstSearchEdgeCollisionVisitor_H
13 #define Navigation_BestFirstSearchEdgeCollisionVisitor_H
32 template<
class TraverseLogic,
class EdgeIntersector>
33 class BestFirstSearchEdgeCollisionVisitor
38 BestFirstSearchEdgeCollisionVisitor(
void* traverseLogicUserData, EdgeIntersector& edgeIntersector);
40 bool IsSearchFinished();
42 bool ShouldVisitNeighborTriangle(const NavTriangleRawPtr& triangleRawPtr,
KyUInt32 indexOfNeighborTriangle);
43 bool ShouldVisitTriangle(const NavTriangleRawPtr& triangleRawPtr);
44 void ComputeTriangleCost(const NavTriangleRawPtr& triangleRawPtr,
KyFloat32& cost);
46 NavTriangleRawPtr GetNeighborTriangle(const NavTriangleRawPtr& triangleRawPtr,
KyUInt32 indexOfNeighborTriangle);
48 void Visit(const NavTriangleRawPtr& triangleRawPtr,
KyFloat32 cost, const TriangleStatusInGrid& triangleStatus);
51 EdgeIntersector* m_edgeIntersector;
52 void* m_traverseLogicUserData;
53 bool m_collisionFound;
57 NavHalfEdgeRawPtr m_intersectedHalfEdgeRawPtr;
61 bool m_shouldVisitNeighborTriangle[3];
62 NavTriangleRawPtr m_neighborTriangle[3];
65 template<class TraverseLogic, class EdgeIntersector>
66 KY_INLINE BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::BestFirstSearchEdgeCollisionVisitor(
void* traverseLogicUserData, EdgeIntersector& edgeIntersector) :
67 m_edgeIntersector(&edgeIntersector), m_traverseLogicUserData(traverseLogicUserData), m_collisionFound(false),
68 m_squareDistToCollisionPos(
KyFloat32MAXVAL), m_lastCost(KyFloat32MAXVAL)
70 m_shouldVisitNeighborTriangle[0] =
true;
71 m_shouldVisitNeighborTriangle[1] =
true;
72 m_shouldVisitNeighborTriangle[2] =
true;
75 template<
class TraverseLogic,
class EdgeIntersector>
76 KY_INLINE
bool BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::IsSearchFinished() {
return m_lastCost > m_squareDistToCollisionPos; }
78 template<
class TraverseLogic,
class EdgeIntersector>
79 KY_INLINE
bool BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::ShouldVisitNeighborTriangle(
const NavTriangleRawPtr& ,
KyUInt32 indexOfNeighborTriangle)
81 return m_shouldVisitNeighborTriangle[indexOfNeighborTriangle];
84 template<
class TraverseLogic,
class EdgeIntersector>
85 KY_INLINE
bool BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::ShouldVisitTriangle(
const NavTriangleRawPtr& ) {
return true; }
87 template<
class TraverseLogic,
class EdgeIntersector>
88 KY_INLINE NavTriangleRawPtr BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::GetNeighborTriangle(
const NavTriangleRawPtr& ,
KyUInt32 indexOfNeighborTriangle)
90 return m_neighborTriangle[indexOfNeighborTriangle];
93 template<
class TraverseLogic,
class EdgeIntersector>
94 void BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::ComputeTriangleCost(
const NavTriangleRawPtr& triangleRawPtr,
KyFloat32& cost)
97 triangleRawPtr.GetVerticesCoordPos64(v0, v1, v2);
98 m_edgeIntersector->ComputeTriangleCost(v0, v1, v2, cost);
101 template<
class TraverseLogic,
class EdgeIntersector>
102 void BestFirstSearchEdgeCollisionVisitor<TraverseLogic, EdgeIntersector>::Visit(
const NavTriangleRawPtr& triangleRawPtr,
const KyFloat32 triangleCost,
103 const TriangleStatusInGrid& triangleStatus)
106 CoordPos64* vertex[4] = { &v0, &v1, &v2, &v0};
107 NavHalfEdgeRawPtr halfEdgeRawPtr[3];
108 NavHalfEdge halfEdge[3];
109 bool isACrossableEdges[3];
110 bool neighborTriangleAlreadyVisited[3];
111 bool doesIntersectsEdges[3];
114 NavFloor* navFloor = triangleRawPtr.GetNavFloor();
117 halfEdgeRawPtr[i].Set(navFloor, firstNavHalfEdgeIdx + i);
119 triangleRawPtr.GetVerticesCoordPos64(v0, v1, v2);
121 const NavFloorBlob& navFloorBlob = *navFloor->GetNavFloorBlob();
122 const NavHalfEdge* m_navHalfEdges = navFloorBlob.m_navHalfEdges.GetValues();
125 halfEdge[i] = m_navHalfEdges[firstNavHalfEdgeIdx + i];
129 NavHalfEdgeRawPtr pairHalfEdgeRawPtr;
130 isACrossableEdges[i] = halfEdgeRawPtr[i].IsHalfEdgeCrossable<TraverseLogic>(m_traverseLogicUserData, halfEdge[i], &navFloorBlob, pairHalfEdgeRawPtr);
132 if (isACrossableEdges[i])
138 neighborTriangleAlreadyVisited[i] = triangleStatus.IsTriangleOpen_Unsafe(m_neighborTriangle[i]);
140 neighborTriangleAlreadyVisited[i] = triangleStatus.IsTriangleOpen(m_neighborTriangle[i]);
144 neighborTriangleAlreadyVisited[i] =
false;
149 doesIntersectsEdges[i] = neighborTriangleAlreadyVisited[i] || m_edgeIntersector->DoesIntersectEdge(*vertex[i], *vertex[i+1]);
151 m_lastCost = triangleCost;
153 if (isACrossableEdges[0] ==
false || isACrossableEdges[1] ==
false || isACrossableEdges[2] ==
false)
158 bool aCollisionFoundIsThisTriangle =
false;
162 if (isACrossableEdges[i] ==
false && doesIntersectsEdges[i])
164 m_edgeIntersector->ComputeCollisionPosOnEdge(*vertex[i], *vertex[i+1], collisionPos, squareDistToCollisionPos);
165 if (squareDistToCollisionPos < m_squareDistToCollisionPos)
167 m_squareDistToCollisionPos = squareDistToCollisionPos;
168 aCollisionFoundIsThisTriangle =
true;
169 m_collisionPos = collisionPos;
175 m_collisionFound = m_collisionFound || aCollisionFoundIsThisTriangle;
179 m_shouldVisitNeighborTriangle[i] = isACrossableEdges[i] && neighborTriangleAlreadyVisited[i] ==
false && doesIntersectsEdges[i];
185 #endif //Navigation_BestFirstSearchEdgeCollisionVisitor_H
#define KyFloat32MAXVAL
The maximum value that can be stored in the KyFloat32 variable type.
Definition: types.h:227
KyUInt32 NavHalfEdgeIdx
An index that uniquely identifies a single edge of a triangle within the set of edges owned by a NavF...
Definition: navmeshtypes.h:87
Indicates that another NavHalfEdge in the same NavFloor but in different Connex lies adjacent to the ...
Definition: navmeshtypes.h:60
static NavHalfEdgeIdx NavTriangleIdxToFirstNavHalfEdgeIdx(NavTriangleIdx idx)
Retrieves the first NavHalfEdgeIdx of NavTriangle specified by the input NavTriangleIdx.
Definition: navfloorblob.inl:26
Vec2LL CoordPos64
A type that represents the position of a point within the 2D integer grid.
Definition: navmeshtypes.h:19
Definition: gamekitcrowddispersion.h:20
static NavTriangleIdx NavHalfEdgeIdxToTriangleIdx(NavHalfEdgeIdx idx)
Retrieves the index of the triangle that contains the edge specified the input NavHalfEdgeIdx.
Definition: navfloorblob.inl:25
#define KY_DEFINE_NEW_DELETE_OPERATORS(MemStat)
This macro defines new and delete operators.
Definition: memory.h:137
Indicates that another NavHalfEdge in the same Connex lies adjacent to the NavHalfEdge.
Definition: navmeshtypes.h:61
static NavHalfEdgeIdx NavTriangleIdxToNavHalfEdgeIdx(NavTriangleIdx idx, KyInt32 halfEdgeNumber)
Retrieves one edge from the specified triangle.
Definition: navfloorblob.inl:28
unsigned int KyUInt32
Type used internally to represent an unsigned 32-bit integer.
Definition: types.h:36
float KyFloat32
Type used internally to represent a 32-bit floating-point number.
Definition: types.h:43