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-rw-r--r--src/Mobs/Path.cpp132
1 files changed, 114 insertions, 18 deletions
diff --git a/src/Mobs/Path.cpp b/src/Mobs/Path.cpp
index eba29be7e..e987381f7 100644
--- a/src/Mobs/Path.cpp
+++ b/src/Mobs/Path.cpp
@@ -6,6 +6,7 @@
#include "Path.h"
#include "../Chunk.h"
+#define JUMP_G_COST 20
#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.
@@ -31,12 +32,11 @@ bool compareHeuristics::operator()(cPathCell * & a_Cell1, cPathCell * & a_Cell2)
/* cPath implementation */
cPath::cPath(
cChunk & a_Chunk,
- const Vector3i & a_StartingPoint, const Vector3i & a_EndingPoint, int a_MaxSteps,
+ const Vector3d & a_StartingPoint, const Vector3d & a_EndingPoint, int a_MaxSteps,
double a_BoundingBoxWidth, double a_BoundingBoxHeight,
int a_MaxUp, int a_MaxDown
) :
- m_Destination(a_EndingPoint.Floor()),
- m_Source(a_StartingPoint.Floor()),
+
m_CurrentPoint(0), // GetNextPoint increments this to 1, but that's fine, since the first cell is always a_StartingPoint
m_Chunk(&a_Chunk),
m_BadChunkFound(false)
@@ -44,6 +44,21 @@ cPath::cPath(
// TODO: if src not walkable OR dest not walkable, then abort.
// Borrow a new "isWalkable" from ProcessIfWalkable, make ProcessIfWalkable also call isWalkable
+ a_BoundingBoxWidth = 1; // Until we improve physics, if ever.
+
+ m_BoundingBoxWidth = CeilC(a_BoundingBoxWidth);
+ m_BoundingBoxHeight = CeilC(a_BoundingBoxHeight);
+ m_HalfWidth = a_BoundingBoxWidth / 2;
+
+ int HalfWidthInt = FloorC(a_BoundingBoxWidth / 2);
+ m_Source.x = FloorC(a_StartingPoint.x - HalfWidthInt);
+ m_Source.y = FloorC(a_StartingPoint.y);
+ m_Source.z = FloorC(a_StartingPoint.z - HalfWidthInt);
+
+ m_Destination.x = FloorC(a_EndingPoint.x - HalfWidthInt);
+ m_Destination.y = FloorC(a_EndingPoint.y);
+ m_Destination.z = FloorC(a_EndingPoint.z - HalfWidthInt);
+
if (GetCell(m_Source)->m_IsSolid || GetCell(m_Destination)->m_IsSolid)
{
m_Status = ePathFinderStatus::PATH_NOT_FOUND;
@@ -142,13 +157,19 @@ bool cPath::IsSolid(const Vector3i & a_Location)
int RelZ = a_Location.z - m_Chunk->GetPosZ() * cChunkDef::Width;
m_Chunk->GetBlockTypeMeta(RelX, a_Location.y, RelZ, BlockType, BlockMeta);
- if ((BlockType == E_BLOCK_FENCE) || (BlockType == E_BLOCK_FENCE_GATE))
+ if (
+ (BlockType == E_BLOCK_FENCE) ||
+ (BlockType == E_BLOCK_FENCE_GATE) ||
+ (BlockType == E_BLOCK_NETHER_BRICK_FENCE) ||
+ ((BlockType >= E_BLOCK_SPRUCE_FENCE_GATE) && (BlockType <= E_BLOCK_ACACIA_FENCE))
+ )
{
+ // TODO move this out of IsSolid to a proper place.
GetCell(a_Location + Vector3i(0, 1, 0))->m_IsSolid = true; // Mobs will always think that the fence is 2 blocks high and therefore won't jump over.
}
if (BlockType == E_BLOCK_STATIONARY_WATER)
{
- GetCell(a_Location + Vector3i(0, -1, 0))->m_IsSolid = true; // Mobs will always think that the fence is 2 blocks high and therefore won't jump over.
+ GetCell(a_Location + Vector3i(0, -1, 0))->m_IsSolid = true;
}
return cBlockInfo::IsSolid(BlockType);
@@ -179,7 +200,7 @@ bool cPath::Step_Internal()
// Calculation not finished yet.
// Check if we have a new NearestPoint.
-
+ // TODO I don't like this that much, there should be a smarter way.
if ((m_Destination - CurrentCell->m_Location).Length() < 5)
{
if (m_Rand.NextInt(4) == 0)
@@ -193,21 +214,50 @@ bool cPath::Step_Internal()
}
// process a currentCell by inspecting all neighbors.
- // Check North, South, East, West on all 3 different heights.
- int i;
- for (i = -1; i <= 1; ++i)
+
+ // Check North, South, East, West on our height.
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(1, 0, 0), CurrentCell, 10);
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(-1, 0, 0), CurrentCell, 10);
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(0, 0, 1), CurrentCell, 10);
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(0, 0, -1), CurrentCell, 10);
+
+ // Check diagonals on XY plane.
+ // x = -1: west, x = 1: east.
+ for (int x = -1; x <= 1; x += 2)
{
- ProcessIfWalkable(CurrentCell->m_Location + Vector3i(1, i, 0), CurrentCell, 10);
- ProcessIfWalkable(CurrentCell->m_Location + Vector3i(-1, i, 0), CurrentCell, 10);
- ProcessIfWalkable(CurrentCell->m_Location + Vector3i(0, i, 1), CurrentCell, 10);
- ProcessIfWalkable(CurrentCell->m_Location + Vector3i(0, i, -1), CurrentCell, 10);
+ if (GetCell(CurrentCell->m_Location + Vector3i(x, 0, 0))->m_IsSolid) // If there's a solid our east / west.
+ {
+ if (!GetCell(CurrentCell->m_Location + Vector3i(0, 1, 0))->m_IsSolid) // If there isn't a solid above.
+ {
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(x, 1, 0), CurrentCell, JUMP_G_COST); // Check east-up / west-up.
+ }
+ }
+ else
+ {
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(x, -1, 0), CurrentCell, 14); // Else check east-down / west-down.
+ }
+ }
+
+ // Check diagonals on the YZ plane.
+ for (int z = -1; z <= 1; z += 2)
+ {
+ if (GetCell(CurrentCell->m_Location + Vector3i(0, 0, z))->m_IsSolid) // If there's a solid our north / south.
+ {
+ if (!GetCell(CurrentCell->m_Location + Vector3i(0, 1, 0))->m_IsSolid) // If there isn't a solid above.
+ {
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(0, 1, z), CurrentCell, JUMP_G_COST); // Check north-up / south-up.
+ }
+ }
+ else
+ {
+ ProcessIfWalkable(CurrentCell->m_Location + Vector3i(0, -1, z), CurrentCell, 14); // Else check north-down / south-down.
+ }
}
- // Check diagonals on mob's height only.
- int x, z;
- for (x = -1; x <= 1; x += 2)
+ // Check diagonals on the XZ plane. (Normal diagonals, this plane is special because of gravity, etc)
+ for (int x = -1; x <= 1; x += 2)
{
- for (z = -1; z <= 1; z += 2)
+ for (int z = -1; z <= 1; z += 2)
{
// This condition prevents diagonal corner cutting.
if (!GetCell(CurrentCell->m_Location + Vector3i(x, 0, 0))->m_IsSolid && !GetCell(CurrentCell->m_Location + Vector3i(0, 0, z))->m_IsSolid)
@@ -320,7 +370,53 @@ si::setBlock((Ret)->m_Location.x, (Ret)->m_Location.y, (Ret)->m_Location.z, debu
void cPath::ProcessIfWalkable(const Vector3i & a_Location, cPathCell * a_Parent, int a_Cost)
{
cPathCell * cell = GetCell(a_Location);
- if (!cell->m_IsSolid && GetCell(a_Location + Vector3i(0, -1, 0))->m_IsSolid && !GetCell(a_Location + Vector3i(0, 1, 0))->m_IsSolid)
+ int x, y, z;
+
+ // Make sure we fit in the position.
+ for (y = 0; y < m_BoundingBoxHeight; ++y)
+ {
+ for (x = 0; x < m_BoundingBoxWidth; ++x)
+ {
+ for (z = 0; z < m_BoundingBoxWidth; ++z)
+ {
+ if (GetCell(a_Location + Vector3i(x, y, z))->m_IsSolid)
+ {
+ return;
+ }
+ }
+ }
+ }
+
+ /*y =-1;
+ for (x = 0; x < m_BoundingBoxWidth; ++x)
+ {
+ for (z = 0; z < m_BoundingBoxWidth; ++z)
+ {
+ if (!GetCell(a_Location + Vector3i(x, y, z))->m_IsSolid)
+ {
+ return;
+ }
+ }
+ }
+ ProcessCell(cell, a_Parent, a_Cost);*/
+
+ // Make sure there's at least 1 piece of solid below us.
+
+ bool GroundFlag = false;
+ y =-1;
+ for (x = 0; x < m_BoundingBoxWidth; ++x)
+ {
+ for (z = 0; z < m_BoundingBoxWidth; ++z)
+ {
+ if (GetCell(a_Location + Vector3i(x, y, z))->m_IsSolid)
+ {
+ GroundFlag = true;
+ break;
+ }
+ }
+ }
+
+ if (GroundFlag)
{
ProcessCell(cell, a_Parent, a_Cost);
}
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