/// <summary>
/// Called when the surface becomes available.
/// </summary>
/// <param name="delayedRequest">A request that was delayed until surface becomes available.</param>
protected override void OnSurfaceAvailable(PathfindingRequest delayedRequest)
{
if (currentFace == null ||
!AlchemyNavigationSystem.Current.ContainsFace(Layer, currentFace.source))
{
var ray = new Ray(position, Vector3.down);
if (AlchemyNavigationSystem.Current.Raycast(ray, Layer, AreaMask, out var result))
{
currentFace = new CachedFace(result.face);
position = result.position;
ApplyPosition();
}
else
{
Debug.LogWarning("Agent couldn't be placed on navigation surface.");
gameObject.SetActive(false);
return;
}
}
if (delayedRequest != null)
{
CancelAllRequests();
RequestPath(position, delayedRequest.endPosition, PathType, currentFace.source);
}
else if (IsPathWalking)
{
Vector3 destination = progress.pointPath[progress.pointsCount - 1];
CancelAllRequests();
RequestPath(position, destination, PathType, currentFace.source);
}
}
private void Move(Vector3 move)
{
Vector3 displacement = Vector3.ProjectOnPlane(move, currentFace.plane.normal);
Vector3 potentialPosition = position + displacement;
if (currentFace.source.IsPointInsideFace(potentialPosition, EpsilonOffset))
{
position = potentialPosition;
}
else
{
Vector3 clampedPosition = currentFace.SnapToFace(position, displacement);
Vector3 clampedDisplacement = clampedPosition - position;
position = clampedPosition;
Vector3 cutDisplacement = displacement.normalized * (displacement.magnitude - clampedDisplacement.magnitude); // + 2 * EpsilonOffset
if (progress != null && progress.HasNextFace && progress.NextFace.IsPointInsideFace(position, EpsilonOffset))
{
progress.currentFace++;
currentFace = new CachedFace(progress.CurrentFace);
var ray = new Ray(position, Vector3.down);
currentFace.plane.Raycast(ray, out float enter);
position = ray.GetPoint(enter);
while (progress.HasNextPoint && !progress.IsCurrentPointOnCurrentOrNextFaces())
{
progress.currentPoint++;
}
Move(cutDisplacement);
}
else
{
position += currentFace.CastDisplacementOnClosestEdge(position, cutDisplacement);
}
}
}
/// <summary>
/// Called when the agent becomes enabled and active.
/// </summary>
protected override void OnAgentEnable()
{
currentFace = null;
velocity = Vector3.zero;
position = transform.position;
ApplyPosition();
ReloadMovementModifiers();
}
/// <summary>
/// Store the mesh and texture.
/// </summary>
public CachedPlanet CachePlanet()
{
CachedFace[] cachedFaces = new CachedFace[6];
for (int i = 0; i < 6; i++)
{
cachedFaces[i] = new CachedFace(terrainFaces[i].mesh, terrainFaces[i].texture);
}
return(new CachedPlanet(cachedFaces));
}
public void AppendText(char *text, int count, TextFormat format)
{
// look up the cache entry for the given font and size
var font = format.Font;
var size = FontFace.ComputePixelSize(format.Size, Dpi);
var key = new CacheKey(font.Id, size);
if (!cache.TryGetValue(key, out var cachedFace))
{
cache.Add(key, cachedFace = new CachedFace(font, size));
}
// process each character in the string
var nextBreak = BreakCategory.None;
var previous = new CodePoint();
var end = text + count;
while (text != end)
{
// handle surrogate pairs properly
CodePoint codePoint;
var c = *text++;
if (char.IsSurrogate(c) && text != end)
{
codePoint = new CodePoint(c, *text++);
}
else
{
codePoint = c;
}
// ignore linefeeds directly after a carriage return
if (c == '\n' && (char)previous == '\r')
{
continue;
}
// get the glyph data
if (!cachedFace.Glyphs.TryGetValue(codePoint, out var glyph) && !char.IsControl(c))
{
var data = font.GetGlyph(codePoint, size);
var width = data.RenderWidth;
var height = data.RenderHeight;
if (width > atlas.Width || height > atlas.Height)
{
throw new InvalidOperationException("Glyph is larger than the size of the provided atlas.");
}
var rect = new Rect();
if (width > 0 && height > 0)
{
// render the glyph
var memSize = width * height;
var mem = memoryBuffer;
if (mem == null)
{
memoryBuffer = mem = new MemoryBuffer(memSize);
}
mem.Clear(memSize);
data.RenderTo(new Surface
{
Bits = mem.Pointer,
Width = width,
Height = height,
Pitch = width
});
// save the rasterized glyph in the user's atlas
rect = packer.Insert(width, height);
if (rect.Height == 0)
{
// didn't fit in the atlas... start a new sheet
currentPage++;
packer.Clear(atlas.Width, atlas.Height);
rect = packer.Insert(width, height);
if (rect.Height == 0)
{
throw new InvalidOperationException("Failed to insert glyph into fresh page.");
}
}
atlas.Insert(currentPage, rect.X, rect.Y, rect.Width, rect.Height, mem.Pointer);
}
glyph = new CachedGlyph(rect, data.HorizontalMetrics.Bearing, data.HorizontalMetrics.Advance);
cachedFace.Glyphs.Add(codePoint, glyph);
}
// check for a kerning offset
var kerning = font.GetKerning(previous, codePoint, size);
previous = codePoint;
// figure out whether this character can serve as a line break point
// TODO: more robust character class handling
var breakCategory = BreakCategory.None;
if (char.IsWhiteSpace(c))
{
if (c == '\r' || c == '\n')
{
breakCategory = BreakCategory.Mandatory;
}
else
{
breakCategory = BreakCategory.Opportunity;
}
}
// the previous character might make us think that this one should be a break opportunity
if (nextBreak > breakCategory)
{
breakCategory = nextBreak;
}
if (c == '-')
{
nextBreak = BreakCategory.Opportunity;
}
// alright, we have all the right glyph data cached and loaded
// append relevant info to our buffer; we'll do the actual layout later
buffer.Add(new BufferEntry
{
GlyphData = glyph,
Kerning = kerning,
Break = breakCategory
});
}
}