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authorHaoTNN <haotnn@gmail.com>2015-05-23 23:06:37 +0200
committerHaoTNN <haotnn@gmail.com>2015-05-23 23:06:37 +0200
commit2578afb2449ac27defb3ac9dcc3d140e980d0d1a (patch)
tree4f8e0f52f39c1eb3189680b0395134d4b72a2228 /src/Mobs/Path.cpp
parentMerge remote-tracking branch 'upstream/master' (diff)
parentMerge pull request #2107 from mc-server/cow-waterspawn (diff)
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Diffstat (limited to 'src/Mobs/Path.cpp')
-rw-r--r--src/Mobs/Path.cpp36
1 files changed, 17 insertions, 19 deletions
diff --git a/src/Mobs/Path.cpp b/src/Mobs/Path.cpp
index ba8046a2b..eba29be7e 100644
--- a/src/Mobs/Path.cpp
+++ b/src/Mobs/Path.cpp
@@ -6,20 +6,14 @@
#include "Path.h"
#include "../Chunk.h"
+
#define DISTANCE_MANHATTAN 0 // 1: More speed, a bit less accuracy 0: Max accuracy, less speed.
#define HEURISTICS_ONLY 0 // 1: Much more speed, much less accurate.
#define CALCULATIONS_PER_STEP 10 // Higher means more CPU load but faster path calculations.
// The only version which guarantees the shortest path is 0, 0.
-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.
-};
+
+
@@ -185,11 +179,18 @@ bool cPath::Step_Internal()
// Calculation not finished yet.
// Check if we have a new NearestPoint.
- if (CurrentCell->m_H < m_NearestPointToTarget->m_H)
+
+ if ((m_Destination - CurrentCell->m_Location).Length() < 5)
+ {
+ if (m_Rand.NextInt(4) == 0)
+ {
+ m_NearestPointToTarget = CurrentCell;
+ }
+ }
+ else if (CurrentCell->m_H < m_NearestPointToTarget->m_H)
{
m_NearestPointToTarget = CurrentCell;
}
-
// process a currentCell by inspecting all neighbors.
// Check North, South, East, West on all 3 different heights.
@@ -388,23 +389,20 @@ void cPath::ProcessCell(cPathCell * a_Cell, cPathCell * a_Caller, int a_GDelta)
cPathCell * cPath::GetCell(const Vector3i & a_Location)
{
// Create the cell in the hash table if it's not already there.
- cPathCell * Cell;
if (m_Map.count(a_Location) == 0) // Case 1: Cell is not on any list. We've never checked this cell before.
{
- Cell = new cPathCell();
- Cell->m_Location = a_Location;
- m_Map[a_Location] = UniquePtr<cPathCell>(Cell);
- Cell->m_IsSolid = IsSolid(a_Location);
- Cell->m_Status = eCellStatus::NOLIST;
+ m_Map[a_Location].m_Location = a_Location;
+ m_Map[a_Location].m_IsSolid = IsSolid(a_Location);
+ m_Map[a_Location].m_Status = eCellStatus::NOLIST;
#ifdef COMPILING_PATHFIND_DEBUGGER
#ifdef COMPILING_PATHFIND_DEBUGGER_MARK_UNCHECKED
si::setBlock(a_Location.x, a_Location.y, a_Location.z, debug_unchecked, Cell->m_IsSolid ? NORMAL : MINI);
#endif
#endif
- return Cell;
+ return &m_Map[a_Location];
}
else
{
- return m_Map[a_Location].get();
+ return &m_Map[a_Location];
}
}