RecastLayers.cpp File Reference

#include "CoreMinimal.h"
#include "Stats/Stats.h"
#include "Recast/Recast.h"
#include "Recast/RecastAlloc.h"
#include "Recast/RecastAssert.h"

Classes
struct	rcLayerRegionMonotone
struct	rcLayerSweepSpan
struct	rcLayerRegion

Macros
#define	_USE_MATH_DEFINES

Functions
bool	overlapRange (const rcSpanUInt amin, const rcSpanUInt amax, const rcSpanUInt bmin, const rcSpanUInt bmax)
bool	rcBuildHeightfieldLayersMonotone (rcContext *ctx, rcCompactHeightfield &chf, const rcBorderSize borderSize, const int walkableHeight, rcHeightfieldLayerSet &lset)
bool	rcBuildHeightfieldLayersChunky (rcContext *ctx, rcCompactHeightfield &chf, const rcBorderSize borderSize, const int walkableHeight, const int chunkSize, rcHeightfieldLayerSet &lset)
bool	rcGatherRegionsNoFilter (rcContext *ctx, rcCompactHeightfield &chf, const rcBorderSize borderSize, unsigned short *spanBuf4)
	helper function from RecastRegion.cpp, requires distance data in compact height field
bool	rcBuildHeightfieldLayers (rcContext *ctx, rcCompactHeightfield &chf, const rcBorderSize borderSize, const int walkableHeight, rcHeightfieldLayerSet &lset)

Macro Definition Documentation

_USE_MATH_DEFINES

#define _USE_MATH_DEFINES

Function Documentation

overlapRange()

bool overlapRange ( const rcSpanUInt  amin, const rcSpanUInt  amax, const rcSpanUInt  bmin, const rcSpanUInt  bmax  )

inline

rcBuildHeightfieldLayers()

bool rcBuildHeightfieldLayers	(	rcContext *	ctx,
		rcCompactHeightfield &	chf,
		const rcBorderSize	borderSize,
		const int	walkableHeight,
		rcHeightfieldLayerSet &	lset
	)

See the rcConfig documentation for more information on the configuration parameters.

See also

rcAllocHeightfieldLayerSet, rcCompactHeightfield, rcHeightfieldLayerSet, rcConfig

rcBuildHeightfieldLayersChunky()

bool rcBuildHeightfieldLayersChunky	(	rcContext *	ctx,
		rcCompactHeightfield &	chf,
		const rcBorderSize	borderSize,
		const int	walkableHeight,
		const int	chunkSize,
		rcHeightfieldLayerSet &	lset
	)

Builds a layer set from the specified compact heightfield.

Parameters

[in,out]	ctx	The build context to use during the operation.
[in]	chf	A fully built compact heightfield.
[in]	borderSize	The size of the non-navigable border around the heightfield. [Limit: >=0] [Units: vx]
[in]	walkableHeight	Minimum floor to 'ceiling' height that will still allow the floor area to be considered walkable. [Limit: >= 3] [Units: vx]
[in]	chunkSize	Size of chunk of subregion [Units: vx]
[out]	lset	The resulting layer set. (Must be pre-allocated.)

Returns

True if the operation completed successfully.

rcBuildHeightfieldLayersMonotone()

bool rcBuildHeightfieldLayersMonotone	(	rcContext *	ctx,
		rcCompactHeightfield &	chf,
		const rcBorderSize	borderSize,
		const int	walkableHeight,
		rcHeightfieldLayerSet &	lset
	)

See the rcConfig documentation for more information on the configuration parameters.

See also

rcAllocHeightfieldLayerSet, rcCompactHeightfield, rcHeightfieldLayerSet, rcConfig

rcGatherRegionsNoFilter()

bool rcGatherRegionsNoFilter	(	rcContext *	ctx,
		rcCompactHeightfield &	chf,
		const rcBorderSize	borderSize,
		unsigned short *	spanBuf4
	)

helper function from RecastRegion.cpp, requires distance data in compact height field

@UE: rcBuildRegions is now split into two functions: gathering regions and merging them it allows reusing existing code for building layer set (flood fill based partitioning)

spanBuf4 is temporary buffer, allocated and freed by caller (size = chf.spanCount * 4)