void UpdateVisibleChunks()
{
HashSet <Vector2> alreadyUpdatedChunkCoords = new HashSet <Vector2>();
for (int i = visibleTerrainChunks.Count - 1; i >= 0; i--)
{
alreadyUpdatedChunkCoords.Add(visibleTerrainChunks[i].coord);
visibleTerrainChunks[i].UpdateTerrainChunk();
}
int currentChunkCoordX = Mathf.RoundToInt(viewerPosition.x / meshWorldSize);
int currentChunkCoordY = Mathf.RoundToInt(viewerPosition.y / meshWorldSize);
for (int yOffset = -chunksVisibleViewDistance; yOffset <= chunksVisibleViewDistance; yOffset++)
{
for (int xOffset = -chunksVisibleViewDistance; xOffset <= chunksVisibleViewDistance; xOffset++)
{
Vector2 viewedChunkCoord = new Vector2(currentChunkCoordX + xOffset, currentChunkCoordY + yOffset);
if (!alreadyUpdatedChunkCoords.Contains(viewedChunkCoord))
{
if (terrainChunkDict.ContainsKey(viewedChunkCoord))
{
terrainChunkDict[viewedChunkCoord].UpdateTerrainChunk();
}
else
{
Terrainchunk newChunk = new Terrainchunk(viewedChunkCoord, heightMapSettings, meshSettings, detailLevels, colliderLODIndex, transform, viewer, mapMaterial);
terrainChunkDict.Add(viewedChunkCoord, newChunk);
newChunk.onVisibilityChanged += OnTerrainChunkVisibilityChanged;
newChunk.Load();
}
}
}
}
}
void OnTerrainChunkVisibilityChanged(Terrainchunk chunk, bool isVisible)
{
if (isVisible)
{
visibleTerrainChunks.Add(chunk);
}
else
{
visibleTerrainChunks.Remove(chunk);
}
}
void ModifyMesh(Terrainchunk t, Vector3 hitpoint)
{
Mesh mesh = t.meshFilter.mesh;
Vector3[] vertices = mesh.vertices;
for (int i = 0; i < vertices.Length; ++i)
{
Vector3 v = t.meshFilter.transform.TransformPoint(vertices[i]);
//vertices[i] += hit.normal * Gaussian(v, hit.point, radius);
vertices[i] += Vector3.up * Gaussian(v, hit.point, radius);
}
mesh.vertices = vertices;
mesh.RecalculateBounds();
if (t.meshCollider != null)
{
var colliMesh = new Mesh();
colliMesh.vertices = mesh.vertices;
colliMesh.triangles = mesh.triangles;
t.meshCollider.sharedMesh = colliMesh;
}
}
public List <Terrainchunk> GetTerrainchunks(Vector3 nearestPoint, float radius = 0)
{
List <Terrainchunk> returnChunks = new List <Terrainchunk>();
returnChunks.Add(GetNearestChunk(nearestPoint));
//Check for Neibors
Terrainchunk t = GetNearestChunk(new Vector3(nearestPoint.x + radius, nearestPoint.y, nearestPoint.z));
if (returnChunks[0] != null)
{
//x neibors
if (GetNearestChunk(new Vector3(nearestPoint.x + radius, nearestPoint.y, nearestPoint.z)) != returnChunks[0])
{
returnChunks.Add(GetNearestChunk(new Vector3(nearestPoint.x + radius, nearestPoint.y, nearestPoint.z)));
}
else if (GetNearestChunk(new Vector3(nearestPoint.x - radius, nearestPoint.y, nearestPoint.z)) != returnChunks[0])
{
returnChunks.Add(GetNearestChunk(new Vector3(nearestPoint.x - radius, nearestPoint.y, nearestPoint.z)));
}
//y neibors
if (GetNearestChunk(new Vector3(nearestPoint.x, nearestPoint.y, nearestPoint.z + radius)) != returnChunks[0])
{
returnChunks.Add(GetNearestChunk(new Vector3(nearestPoint.x, nearestPoint.y, nearestPoint.z + radius)));
}
else if (GetNearestChunk(new Vector3(nearestPoint.x, nearestPoint.y, nearestPoint.z - radius)) != returnChunks[0])
{
returnChunks.Add(GetNearestChunk(new Vector3(nearestPoint.x, nearestPoint.y, nearestPoint.z - radius)));
}
if (returnChunks.Count > 2)
{
returnChunks.Add(GetTerrainchunkWithCoords(new Vector2(returnChunks[1].coord.x, returnChunks[2].coord.y)));
}
}
return(returnChunks);
}