diff options
Diffstat (limited to 'src/Mobs/Path.h')
-rw-r--r-- | src/Mobs/Path.h | 48 |
1 files changed, 34 insertions, 14 deletions
diff --git a/src/Mobs/Path.h b/src/Mobs/Path.h index 7a4182f17..3b9c0400e 100644 --- a/src/Mobs/Path.h +++ b/src/Mobs/Path.h @@ -1,16 +1,13 @@ #pragma once -/* Wanna use the pathfinder? Put this in your header file: - -// Fwd: cPath +/* +// Needed Fwds: cPath enum class ePathFinderStatus; class cPath; - -Put this in your .cpp: -#include "...Path.h" */ +#include "../FastRandom.h" #ifdef COMPILING_PATHFIND_DEBUGGER /* Note: the COMPILING_PATHFIND_DEBUGGER flag is used by Native / WiseOldMan95 to debug this class outside of MCServer. This preprocessor flag is never set when compiling MCServer. */ @@ -24,13 +21,30 @@ class cChunk; /* Various little structs and classes */ enum class ePathFinderStatus {CALCULATING, PATH_FOUND, PATH_NOT_FOUND, NEARBY_FOUND}; -struct cPathCell; // Defined inside Path.cpp +enum class eCellStatus {OPENLIST, CLOSEDLIST, NOLIST}; +struct cPathCell +{ + Vector3i m_Location; // Location of the cell in the world. + int m_F, m_G, m_H; // F, G, H as defined in regular A*. + eCellStatus m_Status; // Which list is the cell in? Either non, open, or closed. + cPathCell * m_Parent; // Cell's parent, as defined in regular A*. + bool m_IsSolid; // Is the cell an air or a solid? Partial solids are currently considered solids. +}; + + + + + class compareHeuristics { public: bool operator()(cPathCell * & a_V1, cPathCell * & a_V2); }; + + + + class cPath { public: @@ -54,8 +68,8 @@ public: @param a_MaxSteps The maximum steps before giving up. */ cPath( cChunk & a_Chunk, - const Vector3i & a_StartingPoint, const Vector3i & a_EndingPoint, int a_MaxSteps, - double a_BoundingBoxWidth = 1, double a_BoundingBoxHeight = 2, + const Vector3d & a_StartingPoint, const Vector3d & a_EndingPoint, int a_MaxSteps, + double a_BoundingBoxWidth, double a_BoundingBoxHeight, int a_MaxUp = 1, int a_MaxDown = 1 ); @@ -75,10 +89,11 @@ public: /* Point retrieval functions, inlined for performance. */ /** Returns the next point in the path. */ - inline Vector3i GetNextPoint() + inline Vector3d GetNextPoint() { ASSERT(m_Status == ePathFinderStatus::PATH_FOUND); - return m_PathPoints[m_PathPoints.size() - 1 - (++m_CurrentPoint)]; + Vector3i Point = m_PathPoints[m_PathPoints.size() - 1 - (++m_CurrentPoint)]; + return Vector3d(Point.x + m_HalfWidth, Point.y, Point.z + m_HalfWidth); } /** Checks whether this is the last point or not. Never call getnextPoint when this is true. */ inline bool IsLastPoint() @@ -92,11 +107,12 @@ public: return (m_CurrentPoint == 0); } /** Get the point at a_index. Remark: Internally, the indexes are reversed. */ - inline Vector3i GetPoint(size_t a_index) + inline Vector3d GetPoint(size_t a_index) { ASSERT(m_Status == ePathFinderStatus::PATH_FOUND); ASSERT(a_index < m_PathPoints.size()); - return m_PathPoints[m_PathPoints.size() - 1 - a_index]; + Vector3i Point = m_PathPoints[m_PathPoints.size() - 1 - a_index]; + return Vector3d(Point.x + m_HalfWidth, Point.y, Point.z + m_HalfWidth); } /** Returns the total number of points this path has. */ inline int GetPointCount() @@ -144,11 +160,15 @@ private: /* Pathfinding fields */ std::priority_queue<cPathCell *, std::vector<cPathCell *>, compareHeuristics> m_OpenList; - std::unordered_map<Vector3i, UniquePtr<cPathCell>, VectorHasher> m_Map; + std::unordered_map<Vector3i, cPathCell, VectorHasher> m_Map; Vector3i m_Destination; Vector3i m_Source; + int m_BoundingBoxWidth; + int m_BoundingBoxHeight; + double m_HalfWidth; int m_StepsLeft; cPathCell * m_NearestPointToTarget; + cFastRandom m_Rand; /* Control fields */ ePathFinderStatus m_Status; |