void FixedUpdate()
{
if (IsRunning)
{
if (curCount > 0.0f)
{
curCount -= Time.fixedDeltaTime;
StepEvent?.Invoke(curCount);
if (lastIntCount > Mathf.CeilToInt(curCount))
{
lastIntCount = Mathf.CeilToInt(curCount);
WholeStepEvent?.Invoke(lastIntCount);
}
}
else
{
curCount = 0.0f;
IsRunning = false;
FinishedEvent?.Invoke();
}
UpdateText();
}
}
/** Requests an update to all tiles which touch the specified bounds */
public void ScheduleUpdate(Bounds bounds)
{
if (graph == null)
{
// If no graph has been set, use the first graph available
if (AstarPath.active != null)
{
SetGraph(AstarPath.active.data.recastGraph);
}
if (graph == null)
{
Debug.LogError("Received tile update request (from RecastTileUpdate), but no RecastGraph could be found to handle it");
return;
}
}
// Make sure that tiles which do not strictly
// contain this bounds object but which still
// might need to be updated are actually updated
int voxelCharacterRadius = Mathf.CeilToInt(graph.characterRadius / graph.cellSize);
int borderSize = voxelCharacterRadius + 3;
// Expand borderSize voxels on each side
bounds.Expand(new Vector3(borderSize, 0, borderSize) * graph.cellSize * 2);
var touching = graph.GetTouchingTiles(bounds);
if (touching.Width * touching.Height > 0)
{
if (!anyDirtyTiles)
{
earliestDirty = Time.time;
anyDirtyTiles = true;
}
for (int z = touching.ymin; z <= touching.ymax; z++)
{
for (int x = touching.xmin; x <= touching.xmax; x++)
{
dirtyTiles[z * graph.tileXCount + x] = true;
}
}
}
}
void GenerateTerrainChunks(Terrain terrain, Bounds bounds, float desiredChunkSize, List <RasterizationMesh> result)
{
var terrainData = terrain.terrainData;
if (terrainData == null)
{
throw new System.ArgumentException("Terrain contains no terrain data");
}
Vector3 offset = terrain.GetPosition();
Vector3 center = offset + terrainData.size * 0.5F;
// Figure out the bounds of the terrain in world space
var terrainBounds = new Bounds(center, terrainData.size);
// Only include terrains which intersects the graph
if (!terrainBounds.Intersects(bounds))
{
return;
}
// Original heightmap size
int heightmapWidth = terrainData.heightmapWidth;
int heightmapDepth = terrainData.heightmapHeight;
// Sample the terrain heightmap
float[, ] heights = terrainData.GetHeights(0, 0, heightmapWidth, heightmapDepth);
Vector3 sampleSize = terrainData.heightmapScale;
sampleSize.y = terrainData.size.y;
// Make chunks at least 12 quads wide
// since too small chunks just decreases performance due
// to the overhead of checking for bounds and similar things
const int MinChunkSize = 12;
// Find the number of samples along each edge that corresponds to a world size of desiredChunkSize
// Then round up to the nearest multiple of terrainSampleSize
var chunkSizeAlongX = Mathf.CeilToInt(Mathf.Max(desiredChunkSize / (sampleSize.x * terrainSampleSize), MinChunkSize)) * terrainSampleSize;
var chunkSizeAlongZ = Mathf.CeilToInt(Mathf.Max(desiredChunkSize / (sampleSize.z * terrainSampleSize), MinChunkSize)) * terrainSampleSize;
for (int z = 0; z < heightmapDepth; z += chunkSizeAlongZ)
{
for (int x = 0; x < heightmapWidth; x += chunkSizeAlongX)
{
var width = Mathf.Min(chunkSizeAlongX, heightmapWidth - x);
var depth = Mathf.Min(chunkSizeAlongZ, heightmapDepth - z);
var chunkMin = offset + new Vector3(z * sampleSize.x, 0, x * sampleSize.z);
var chunkMax = offset + new Vector3((z + depth) * sampleSize.x, sampleSize.y, (x + width) * sampleSize.z);
var chunkBounds = new Bounds();
chunkBounds.SetMinMax(chunkMin, chunkMax);
// Skip chunks that are not inside the desired bounds
if (chunkBounds.Intersects(bounds))
{
var chunk = GenerateHeightmapChunk(heights, sampleSize, offset, x, z, width, depth, terrainSampleSize);
result.Add(chunk);
}
}
}
}
public static Vector2Int CeilToInt(Vector2 v)
{
return(new Vector2Int(Mathf.CeilToInt(v.x), Mathf.CeilToInt(v.y)));
}
public void Reset()
{
curCount = StartCount;
lastIntCount = Mathf.CeilToInt(curCount) + 1;
UpdateText();
}
void Start()
{
curCount = StartCount;
lastIntCount = Mathf.CeilToInt(curCount) + 1;
}
private void UpdateText()
{
Text = Mathf.CeilToInt(curCount).ToString();
}