private void BuildContours()
{
ContourSet cset = ContourSet.Build(mBuildContext
, mBuildContext.CompactField
, mConfig.EdgeMaxDeviation
, mConfig.MaxEdgeLength
, mConfig.ContourOptions);
if (cset == null)
{
FinalizeAbort("Aborted at contour set build.");
return;
}
if (cset.Count < 1)
{
FinalizeNoResult("Completed after contour build. No useable contours generated.");
return;
}
mBuildContext.Contours = cset;
if (PostProcess() && PostContoursCheck() && PostCompactFieldCheck())
{
mBuildContext.Log("Built contour set. Contour count: " + cset.Count, this);
mState = NMGenState.PolyMeshBuild;
}
}
/// <summary>
/// Returns human friendly text for the specified state.
/// </summary>
/// <param name="state">The state.</param>
/// <returns>Human friendly text.</returns>
public static string ToLabel(NMGenState state)
{
switch (state)
{
case NMGenState.Aborted:
return("Aborted.");
case NMGenState.CompactFieldBuild:
return("Building compact heightfield.");
case NMGenState.Complete:
return("Complete");
case NMGenState.ContourBuild:
return("Building contours.");
case NMGenState.DetailMeshBuild:
return("Building detail mesh.");
case NMGenState.HeightfieldBuild:
return("Building heightfield.");
case NMGenState.PolyMeshBuild:
return("Building polygon mesh.");
case NMGenState.RegionBuild:
return("Building regions.");
case NMGenState.NoResult:
return("No result.");
}
return("Unhandled state: " + state);
}
private void FinalizeComplete()
{
if ((mResultOptions & NMGenAssetFlag.Heightfield) == 0 && mBuildContext.Heightfield != null)
{
mBuildContext.Heightfield.RequestDisposal();
mBuildContext.Heightfield = null;
}
if ((mResultOptions & NMGenAssetFlag.CompactField) == 0 && mBuildContext.CompactField != null)
{
mBuildContext.CompactField.RequestDisposal();
mBuildContext.CompactField = null;
}
if ((mResultOptions & NMGenAssetFlag.ContourSet) == 0 && mBuildContext.Contours != null)
{
mBuildContext.Contours.RequestDisposal();
mBuildContext.Contours = null;
}
// Polymesh is always kept.
if ((mResultOptions & NMGenAssetFlag.DetailMesh) == 0 && mBuildContext.DetailMesh != null)
{
mBuildContext.DetailMesh.RequestDisposal();
mBuildContext.DetailMesh = null;
}
mBuildContext.Log("Build Complete. Result: " + mResultOptions, this);
mState = NMGenState.Complete;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The flags will be applied during the <see cref="NMGenState.PolyMeshBuild"/>
/// state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.PolyMeshBuild)
{
return(true);
}
PolyMesh mesh = context.PolyMesh;
PolyMeshData data = mesh.GetData(false);
if (data.polyCount == 0)
{
return(true);
}
bool applied = false;
for (int i = 0; i < mAreas.Length; i++)
{
byte area = mAreas[i];
ushort flags = mFlags[i];
int marked = 0;
for (int iPoly = 0; iPoly < data.polyCount; iPoly++)
{
if (data.areas[iPoly] == area)
{
data.flags[iPoly] |= flags;
marked++;
}
}
if (marked > 0)
{
string msg = string.Format(
"{0} : Added '0x{1:X}' flag(s) to {2} poylgons assigned to area {3}."
, Name, flags, marked, area);
context.Log(msg, this);
applied = true;
}
}
if (applied)
{
mesh.Load(data);
}
else
{
context.Log(Name + ": No flags applied.", this);
}
return(true);
}
/// <summary>
/// Runs all the processors in order of priority. (Ascending)
/// </summary>
/// <remarks>
/// <para>
/// A return value of false indicates the build should be aborted.
/// </para>
/// </remarks>
/// <param name="state">The current state of the build.</param>
/// <param name="context">The build context.</param>
/// <returns>False if the build should abort.</returns>
public bool Process(NMGenContext context, NMGenState state)
{
foreach (INMGenProcessor p in mProcessors)
{
if (!p.ProcessBuild(context, state))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Performs a single build step.
/// </summary>
/// <remarks>
/// <para>
/// The result state will represent either a finished state or the build step that
/// will be performed during the next call to the method.
/// </para>
/// </remarks>
/// <returns>The state at the end of the build step.</returns>
public NMGenState Build()
{
switch (mState)
{
case NMGenState.Initialized:
mBuildContext.Log("Build: " + mTileText, this);
mProcessors.LogProcessors(mBuildContext);
mState = NMGenState.HeightfieldBuild;
break;
case NMGenState.HeightfieldBuild:
//UnityEngine.Debug.Log("hfb");
BuildHeightfield();
break;
case NMGenState.CompactFieldBuild:
//UnityEngine.Debug.Log("cfb");
BuildCompactField();
break;
case NMGenState.RegionBuild:
//UnityEngine.Debug.Log("rb");
BuildRegions();
break;
case NMGenState.ContourBuild:
//UnityEngine.Debug.Log("cb");
BuildContours();
break;
case NMGenState.PolyMeshBuild:
BuildPolyMesh();
break;
case NMGenState.DetailMeshBuild:
BuildDetailMesh();
break;
}
return(mState);
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The flags will be applied during the <see cref="NMGenState.PolyMeshBuild"/>
/// state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.PolyMeshBuild)
return true;
PolyMesh mesh = context.PolyMesh;
PolyMeshData data = mesh.GetData(false);
if (data.polyCount == 0)
return true;
bool applied = false;
for (int i = 0; i < mAreas.Length; i++)
{
byte area = mAreas[i];
ushort flags = mFlags[i];
int marked = 0;
for (int iPoly = 0; iPoly < data.polyCount; iPoly++)
{
if (data.areas[iPoly] == area)
{
data.flags[iPoly] |= flags;
marked++;
}
}
if (marked > 0)
{
string msg = string.Format(
"{0} : Added '0x{1:X}' flag(s) to {2} poylgons assigned to area {3}."
, Name, flags, marked, area);
context.Log(msg, this);
applied = true;
}
}
if (applied)
mesh.Load(data);
else
context.Log(Name + ": No flags applied.", this);
return true;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// Will be applied during the <see cref="NMGenState.HeightfieldBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.HeightfieldBuild)
return true;
if (context.Heightfield.MarkLowObstaclesWalkable(context
, context.Config.WalkableStep))
{
context.Log(Name + ": Marked low obstacles as walklable.", this);
return true;
}
context.Log(Name + ": Mark low obstacles failed.", this);
return false;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// Will be applied during the <see cref="NMGenState.HeightfieldBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.HeightfieldBuild)
return true;
if (context.Heightfield.MarkLowHeightSpansNotWalkable(context
, context.Config.WalkableHeight))
{
context.Log(Name + ": Marked low height spans as not walklable.", this);
return true;
}
context.Log(Name + ": Mark low height spans failed.", this);
return false;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The area will be applied during the <see cref="NMGenState.CompactFieldBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.CompactFieldBuild)
return true;
if (context.CompactField.MarkBoxArea(context, mBoundsMin, mBoundsMax, Area))
{
context.Log(string.Format("{0} : Marked box area: Area: {1}, Priority: {2}"
, Name, Area, Priority)
, this);
return true;
}
context.Log(Name + ": Failed to mark box area.", this);
return false;
}
private void BuildCompactField()
{
Heightfield hf = mBuildContext.Heightfield;
CompactHeightfield chf = CompactHeightfield.Build(mBuildContext
, hf
, mConfig.WalkableHeight
, mConfig.WalkableStep);
if (CanDispose(NMGenAssetFlag.Heightfield))
{
hf.RequestDisposal();
mBuildContext.Heightfield = null;
}
if (chf == null)
{
FinalizeAbort("Aborted at compact heightfield build.");
return;
}
if (chf.SpanCount < 1)
{
FinalizeNoResult("Complete at compact heightfield build. No spans.");
return;
}
mBuildContext.CompactField = chf;
// Note: Post process is done before eroding the walkable area
// so that the processors can stamp additional obstructions into
// the heightfield.
if (PostProcess() && PostCompactFieldCheck())
{
if (mConfig.WalkableRadius > 0)
{
chf = mBuildContext.CompactField;
chf.ErodeWalkableArea(mBuildContext, mConfig.WalkableRadius);
mBuildContext.Log("Eroded walkable area by radius: " + mConfig.walkableRadius
, this);
}
mBuildContext.Log("Built compact heightfield. Spans: " + chf.SpanCount, this);
mState = NMGenState.RegionBuild;
}
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// Will be applied during the <see cref="NMGenState.HeightfieldBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.HeightfieldBuild)
{
return(true);
}
if (context.Heightfield.MarkLowObstaclesWalkable(context
, context.Config.WalkableStep))
{
context.Log(Name + ": Marked low obstacles as walklable.", this);
return(true);
}
context.Log(Name + ": Mark low obstacles failed.", this);
return(false);
}
private void BuildRegions()
{
CompactHeightfield chf = mBuildContext.CompactField;
chf.BuildDistanceField(mBuildContext);
mBuildContext.Log("Built distance field. Max Distance: " + chf.MaxDistance, this);
if (mConfig.UseMonotone)
{
if (!chf.BuildRegionsMonotone(mBuildContext
, mConfig.BorderSize
, mConfig.MinRegionArea
, mConfig.MergeRegionArea))
{
FinalizeAbort("Monotone region generation failed.");
return;
}
}
else
{
if (!chf.BuildRegions(mBuildContext
, mConfig.BorderSize
, mConfig.MinRegionArea
, mConfig.MergeRegionArea))
{
FinalizeAbort("Region generation failed.");
return;
}
}
if (PostProcess() && PostCompactFieldCheck())
{
if (chf.MaxRegion < 2)
{
// Null region counts as a region. So expect
// at least 2.
FinalizeNoResult("Completed after region build. No useable regions formed.");
return;
}
mBuildContext.Log("Generated regions. Region Count: " + chf.MaxRegion, this);
// Success.
mState = NMGenState.ContourBuild;
}
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// Will be applied during the <see cref="NMGenState.HeightfieldBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.HeightfieldBuild)
{
return(true);
}
if (context.Heightfield.MarkLowHeightSpansNotWalkable(context
, context.Config.WalkableHeight))
{
context.Log(Name + ": Marked low height spans as not walklable.", this);
return(true);
}
context.Log(Name + ": Mark low height spans failed.", this);
return(false);
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The area will be applied during the <see cref="NMGenState.CompactFieldBuild"/>
/// state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.CompactFieldBuild)
return true;
if (context.CompactField.MarkConvexPolyArea(context, verts, ymin, ymax, Area))
{
context.Log(string.Format(
"{0}: Marked convex polygon area: Area: {1}, Priority: {2}"
, Name, Area, Priority)
, this);
return true;
}
context.Log(Name + ": Failed to mark convex polygon area.", this);
return false;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The area will be applied during the <see cref="NMGenState.CompactFieldBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.CompactFieldBuild)
{
return(true);
}
if (context.CompactField.MarkBoxArea(context, mBoundsMin, mBoundsMax, Area))
{
context.Log(string.Format("{0} : Marked box area: Area: {1}, Priority: {2}"
, Name, Area, Priority)
, this);
return(true);
}
context.Log(Name + ": Failed to mark box area.", this);
return(false);
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The area will be applied during the <see cref="NMGenState.CompactFieldBuild"/>
/// state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.CompactFieldBuild)
return true;
if (context.CompactField.MarkCylinderArea(context
, mCenterBase, mRadius, mHeight
, Area))
{
context.Log(string.Format("{0} : Marked box area: Area: {1}, Priority: {2}"
, Name, Area, Priority)
, this);
return true;
}
context.Log(Name + ": Failed to mark cylinder area.", this);
return false;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The flags will be applied during the <see cref="NMGenState.PolyMeshBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>True</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.PolyMeshBuild)
return true;
PolyMeshData data = context.PolyMesh.GetData(false);
for (int i = 0; i < data.flags.Length; i++)
{
data.flags[i] |= mFlags;
}
context.PolyMesh.Load(data);
context.Log(string.Format("{0}: Applied flag(s) to all polys. Flag(s): 0x{1:X}"
, Name, mFlags)
, this);
return true;
}
private IncrementalBuilder(NMGenTileParams tileConfig
, NMGenParams config
, NMGenAssetFlag resultOptions
, InputGeometry source
, ProcessorSet processors)
{
mConfig = config;
mTileConfig = tileConfig;
mGeometry = source;
mProcessors = processors;
mResultOptions = resultOptions;
mBuildContext = new NMGenContext(tileConfig.TileX, tileConfig.TileZ, mConfig.Clone());
mTileText = string.Format("({0},{1})", tileConfig.TileX, tileConfig.TileZ);
mState = NMGenState.Initialized;
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The area will be applied during the <see cref="NMGenState.CompactFieldBuild"/>
/// state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.CompactFieldBuild)
{
return(true);
}
if (context.CompactField.MarkConvexPolyArea(context, verts, ymin, ymax, Area))
{
context.Log(string.Format(
"{0}: Marked convex polygon area: Area: {1}, Priority: {2}"
, Name, Area, Priority)
, this);
return(true);
}
context.Log(Name + ": Failed to mark convex polygon area.", this);
return(false);
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The area will be applied during the <see cref="NMGenState.CompactFieldBuild"/>
/// state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>False on error, otherwise true.</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.CompactFieldBuild)
{
return(true);
}
if (context.CompactField.MarkCylinderArea(context
, mCenterBase, mRadius, mHeight
, Area))
{
context.Log(string.Format("{0} : Marked box area: Area: {1}, Priority: {2}"
, Name, Area, Priority)
, this);
return(true);
}
context.Log(Name + ": Failed to mark cylinder area.", this);
return(false);
}
/// <summary>
/// Process the build context.
/// </summary>
/// <remarks>
/// <para>
/// The flags will be applied during the <see cref="NMGenState.PolyMeshBuild"/> state.
/// </para>
/// </remarks>
/// <param name="state">The current build state.</param>
/// <param name="context">The context to process.</param>
/// <returns>True</returns>
public override bool ProcessBuild(NMGenContext context, NMGenState state)
{
if (state != NMGenState.PolyMeshBuild)
{
return(true);
}
PolyMeshData data = context.PolyMesh.GetData(false);
for (int i = 0; i < data.flags.Length; i++)
{
data.flags[i] |= mFlags;
}
context.PolyMesh.Load(data);
context.Log(string.Format("{0}: Applied flag(s) to all polys. Flag(s): 0x{1:X}"
, Name, mFlags)
, this);
return(true);
}
/// <summary>
/// Returns a progress value associated with the specified state.
/// </summary>
/// <remarks>
/// <para>
/// The value will be between 0 and 1.0, suitable for providing build progress feedback.
/// </para>
/// </remarks>
/// <param name="state">The state.</param>
/// <returns>A progress value for the state.</returns>
public static float ToProgress(NMGenState state)
{
const float inc = 1 / 6f;
switch (state)
{
case NMGenState.Initialized:
return(0);
case NMGenState.HeightfieldBuild:
return(inc * 1);
case NMGenState.CompactFieldBuild:
return(inc * 2);
case NMGenState.RegionBuild:
return(inc * 3);
case NMGenState.ContourBuild:
return(inc * 4);
case NMGenState.PolyMeshBuild:
return(inc * 5);
case NMGenState.DetailMeshBuild:
return(inc * 6);
case NMGenState.Complete:
return(1);
case NMGenState.Aborted:
return(1);
case NMGenState.NoResult:
return(1);
}
return(1);
}
private void BuildHeightfield()
{
int width;
int depth;
NMGen.DeriveSizeOfCellGrid(mTileConfig.BoundsMin
, mTileConfig.BoundsMax
, mConfig.XZCellSize
, out width
, out depth);
Heightfield hf = Heightfield.Create(width, depth
, mTileConfig.BoundsMin, mTileConfig.BoundsMax
, mConfig.XZCellSize, mConfig.YCellSize);
hf.AddTriangles(mBuildContext
, mGeometry.Mesh
, mTileConfig.boundsMin
, mTileConfig.boundsMax
, mConfig.WalkableStep); // Merge for any spans less than step.
if (hf.GetSpanCount() < 1)
{
FinalizeNoResult("Complete at heightfield build. No spans.");
return;
}
mBuildContext.Heightfield = hf;
if (PostProcess() && PostHeightfieldCheck())
{
mBuildContext.Log("Voxelized triangles. Span count: " + hf.GetSpanCount(), this);
mState = NMGenState.CompactFieldBuild;
}
}
private void BuildPolyMesh()
{
ContourSet cset = mBuildContext.Contours;
PolyMesh polyMesh = PolyMesh.Build(mBuildContext
, cset
, mConfig.MaxVertsPerPoly
, mConfig.WalkableHeight
, mConfig.WalkableRadius
, mConfig.WalkableStep);
if (CanDispose(NMGenAssetFlag.ContourSet))
{
cset.RequestDisposal();
mBuildContext.Contours = null;
}
if (polyMesh == null)
{
FinalizeAbort("Aborted at poly mesh build.");
return;
}
if (polyMesh.PolyCount < 1)
{
FinalizeNoResult("Aborted after poly mesh build. No polygons generated.");
return;
}
mBuildContext.PolyMesh = polyMesh;
if (PostProcess() & PostPolyMeshCheck() & PostCompactFieldCheck())
{
mBuildContext.Log("Built poly mesh. PolyCount: " + polyMesh.PolyCount, this);
mState = NMGenState.DetailMeshBuild;
}
}
/// <summary> /// Process the build context. /// </summary> /// <param name="state">The current build state.</param> /// <param name="context">The context to process.</param> /// <returns>False if the build should abort. Otherwise true.</returns> public abstract bool ProcessBuild(NMGenContext context, NMGenState state);
/// <summary>
/// Runs all the processors in order of priority. (Ascending)
/// </summary>
/// <remarks>
/// <para>
/// A return value of false indicates the build should be aborted.
/// </para>
/// </remarks>
/// <param name="state">The current state of the build.</param>
/// <param name="context">The build context.</param>
/// <returns>False if the build should abort.</returns>
public bool Process(NMGenContext context, NMGenState state)
{
foreach (INMGenProcessor p in mProcessors)
{
if (!p.ProcessBuild(context, state))
return false;
}
return true;
}
private void FinalizeAbort(string message)
{
mBuildContext.Log(message, this);
DisposeAssets();
mState = NMGenState.Aborted;
}
private void FinalizeNoResult(string message)
{
mBuildContext.Log(message, this);
DisposeAssets();
mState = NMGenState.NoResult;
}
/// <summary> /// Process the build context. /// </summary> /// <param name="state">The current build state.</param> /// <param name="context">The context to process.</param> /// <returns>False if the build should abort. Otherwise true.</returns> public abstract bool ProcessBuild(NMGenContext context, NMGenState state);
private IncrementalBuilder(NMGenTileParams tileConfig
, NMGenParams config
, NMGenAssetFlag resultOptions
, InputGeometry source
, ProcessorSet processors)
{
mConfig = config;
mTileConfig = tileConfig;
mGeometry = source;
mProcessors = processors;
mResultOptions = resultOptions;
mBuildContext = new NMGenContext(tileConfig.TileX, tileConfig.TileZ, mConfig.Clone());
mTileText = string.Format("({0},{1})", tileConfig.TileX, tileConfig.TileZ);
mState = NMGenState.Initialized;
}
/// <summary>
/// Performs a single build step.
/// </summary>
/// <remarks>
/// <para>
/// The result state will represent either a finished state or the build step that
/// will be performed during the next call to the method.
/// </para>
/// </remarks>
/// <returns>The state at the end of the build step.</returns>
public NMGenState Build()
{
switch (mState)
{
case NMGenState.Initialized:
mBuildContext.Log("Build: " + mTileText, this);
mProcessors.LogProcessors(mBuildContext);
mState = NMGenState.HeightfieldBuild;
break;
case NMGenState.HeightfieldBuild:
//UnityEngine.Debug.Log("hfb");
BuildHeightfield();
break;
case NMGenState.CompactFieldBuild:
//UnityEngine.Debug.Log("cfb");
BuildCompactField();
break;
case NMGenState.RegionBuild:
//UnityEngine.Debug.Log("rb");
BuildRegions();
break;
case NMGenState.ContourBuild:
//UnityEngine.Debug.Log("cb");
BuildContours();
break;
case NMGenState.PolyMeshBuild:
BuildPolyMesh();
break;
case NMGenState.DetailMeshBuild:
BuildDetailMesh();
break;
}
return mState;
}
private void FinalizeComplete()
{
if ((mResultOptions & NMGenAssetFlag.Heightfield) == 0 && mBuildContext.Heightfield != null)
{
mBuildContext.Heightfield.RequestDisposal();
mBuildContext.Heightfield = null;
}
if ((mResultOptions & NMGenAssetFlag.CompactField) == 0 && mBuildContext.CompactField != null)
{
mBuildContext.CompactField.RequestDisposal();
mBuildContext.CompactField = null;
}
if ((mResultOptions & NMGenAssetFlag.ContourSet) == 0 && mBuildContext.Contours != null)
{
mBuildContext.Contours.RequestDisposal();
mBuildContext.Contours = null;
}
// Polymesh is always kept.
if ((mResultOptions & NMGenAssetFlag.DetailMesh) == 0 && mBuildContext.DetailMesh != null)
{
mBuildContext.DetailMesh.RequestDisposal();
mBuildContext.DetailMesh = null;
}
mBuildContext.Log("Build Complete. Result: " + mResultOptions, this);
mState = NMGenState.Complete;
}
private void FinalizeAbort(string message)
{
mBuildContext.Log(message, this);
DisposeAssets();
mState = NMGenState.Aborted;
}
private void BuildRegions()
{
CompactHeightfield chf = mBuildContext.CompactField;
chf.BuildDistanceField(mBuildContext);
mBuildContext.Log("Built distance field. Max Distance: " + chf.MaxDistance, this);
if (mConfig.UseMonotone)
{
if (!chf.BuildRegionsMonotone(mBuildContext
, mConfig.BorderSize
, mConfig.MinRegionArea
, mConfig.MergeRegionArea))
{
FinalizeAbort("Monotone region generation failed.");
return;
}
}
else
{
if (!chf.BuildRegions(mBuildContext
, mConfig.BorderSize
, mConfig.MinRegionArea
, mConfig.MergeRegionArea))
{
FinalizeAbort("Region generation failed.");
return;
}
}
if (PostProcess() && PostCompactFieldCheck())
{
if (chf.MaxRegion < 2)
{
// Null region counts as a region. So expect
// at least 2.
FinalizeNoResult("Completed after region build. No useable regions formed.");
return;
}
mBuildContext.Log("Generated regions. Region Count: " + chf.MaxRegion, this);
// Success.
mState = NMGenState.ContourBuild;
}
}
private void BuildPolyMesh()
{
ContourSet cset = mBuildContext.Contours;
PolyMesh polyMesh = PolyMesh.Build(mBuildContext
, cset
, mConfig.MaxVertsPerPoly
, mConfig.WalkableHeight
, mConfig.WalkableRadius
, mConfig.WalkableStep);
if (CanDispose(NMGenAssetFlag.ContourSet))
{
cset.RequestDisposal();
mBuildContext.Contours = null;
}
if (polyMesh == null)
{
FinalizeAbort("Aborted at poly mesh build.");
return;
}
if (polyMesh.PolyCount < 1)
{
FinalizeNoResult("Aborted after poly mesh build. No polygons generated.");
return;
}
mBuildContext.PolyMesh = polyMesh;
if (PostProcess() & PostPolyMeshCheck() & PostCompactFieldCheck())
{
mBuildContext.Log("Built poly mesh. PolyCount: " + polyMesh.PolyCount, this);
mState = NMGenState.DetailMeshBuild;
}
}
private void BuildHeightfield()
{
int width;
int depth;
NMGen.DeriveSizeOfCellGrid(mTileConfig.BoundsMin
, mTileConfig.BoundsMax
, mConfig.XZCellSize
, out width
, out depth);
Heightfield hf = Heightfield.Create(width, depth
, mTileConfig.BoundsMin, mTileConfig.BoundsMax
, mConfig.XZCellSize, mConfig.YCellSize);
hf.AddTriangles(mBuildContext
, mGeometry.Mesh
, mTileConfig.boundsMin
, mTileConfig.boundsMax
, mConfig.WalkableStep); // Merge for any spans less than step.
if (hf.GetSpanCount() < 1)
{
FinalizeNoResult("Complete at heightfield build. No spans.");
return;
}
mBuildContext.Heightfield = hf;
if (PostProcess() && PostHeightfieldCheck())
{
mBuildContext.Log("Voxelized triangles. Span count: " + hf.GetSpanCount(), this);
mState = NMGenState.CompactFieldBuild;
}
}
/// <summary>
/// Returns human friendly text for the specified state.
/// </summary>
/// <param name="state">The state.</param>
/// <returns>Human friendly text.</returns>
public static string ToLabel(NMGenState state)
{
switch (state)
{
case NMGenState.Aborted:
return "Aborted.";
case NMGenState.CompactFieldBuild:
return "Building compact heightfield.";
case NMGenState.Complete:
return "Complete";
case NMGenState.ContourBuild:
return "Building contours.";
case NMGenState.DetailMeshBuild:
return "Building detail mesh.";
case NMGenState.HeightfieldBuild:
return "Building heightfield.";
case NMGenState.PolyMeshBuild:
return "Building polygon mesh.";
case NMGenState.RegionBuild:
return "Building regions.";
case NMGenState.NoResult:
return "No result.";
}
return "Unhandled state: " + state;
}
private void BuildCompactField()
{
Heightfield hf = mBuildContext.Heightfield;
CompactHeightfield chf = CompactHeightfield.Build(mBuildContext
, hf
, mConfig.WalkableHeight
, mConfig.WalkableStep);
if (CanDispose(NMGenAssetFlag.Heightfield))
{
hf.RequestDisposal();
mBuildContext.Heightfield = null;
}
if (chf == null)
{
FinalizeAbort("Aborted at compact heightfield build.");
return;
}
if (chf.SpanCount < 1)
{
FinalizeNoResult("Complete at compact heightfield build. No spans.");
return;
}
mBuildContext.CompactField = chf;
// Note: Post process is done before eroding the walkable area
// so that the processors can stamp additional obstructions into
// the heightfield.
if (PostProcess() && PostCompactFieldCheck())
{
if (mConfig.WalkableRadius > 0)
{
chf = mBuildContext.CompactField;
chf.ErodeWalkableArea(mBuildContext, mConfig.WalkableRadius);
mBuildContext.Log("Eroded walkable area by radius: " + mConfig.walkableRadius
, this);
}
mBuildContext.Log("Built compact heightfield. Spans: " + chf.SpanCount, this);
mState = NMGenState.RegionBuild;
}
}
private void FinalizeNoResult(string message)
{
mBuildContext.Log(message, this);
DisposeAssets();
mState = NMGenState.NoResult;
}
private void BuildContours()
{
ContourSet cset = ContourSet.Build(mBuildContext
, mBuildContext.CompactField
, mConfig.EdgeMaxDeviation
, mConfig.MaxEdgeLength
, mConfig.ContourOptions);
if (cset == null)
{
FinalizeAbort("Aborted at contour set build.");
return;
}
if (cset.Count < 1)
{
FinalizeNoResult("Completed after contour build. No useable contours generated.");
return;
}
mBuildContext.Contours = cset;
if (PostProcess() && PostContoursCheck() && PostCompactFieldCheck())
{
mBuildContext.Log("Built contour set. Contour count: " + cset.Count, this);
mState = NMGenState.PolyMeshBuild;
}
}
/// <summary>
/// Returns a progress value associated with the specified state.
/// </summary>
/// <remarks>
/// <para>
/// The value will be between 0 and 1.0, suitable for providing build progress feedback.
/// </para>
/// </remarks>
/// <param name="state">The state.</param>
/// <returns>A progress value for the state.</returns>
public static float ToProgress(NMGenState state)
{
const float inc = 1 / 6f;
switch (state)
{
case NMGenState.Initialized:
return 0;
case NMGenState.HeightfieldBuild:
return inc * 1;
case NMGenState.CompactFieldBuild:
return inc * 2;
case NMGenState.RegionBuild:
return inc * 3;
case NMGenState.ContourBuild:
return inc * 4;
case NMGenState.PolyMeshBuild:
return inc * 5;
case NMGenState.DetailMeshBuild:
return inc * 6;
case NMGenState.Complete:
return 1;
case NMGenState.Aborted:
return 1;
case NMGenState.NoResult:
return 1;
}
return 1;
}
