void FillHole(SquareCell cell, Vector3 v1)
{
SquareCell eastNeighbor = cell.GetNeighbor(SquareDirection.E);
SquareCell northNeighbor = cell.GetNeighbor(SquareDirection.N);
SquareCell northEastNeighbor = null;
if (northNeighbor == null || eastNeighbor == null)
{
return;
}
northEastNeighbor = cell.GetNeighbor(SquareDirection.N).GetNeighbor(SquareDirection.E);
Vector3 bridgeN = SquareMetrics.GetBridge(SquareDirection.N);
Vector3 n = v1 + bridgeN;
Vector3 bridgeE = SquareMetrics.GetBridge(SquareDirection.E);
Vector3 e = v1 + bridgeE;
Vector3 ne = v1 + bridgeN + bridgeE;
Color northColor, eastColor, northEastColor;
northColor = eastColor = northEastColor = cell.Color;
if (northNeighbor != null)
{
n.y = northNeighbor.transform.localPosition.y;
northColor = northNeighbor.Color;
}
if (eastNeighbor != null)
{
e.y = eastNeighbor.transform.localPosition.y;
eastColor = eastNeighbor.Color;
}
if (northEastNeighbor != null)
{
ne.y = northEastNeighbor.transform.localPosition.y;
northEastColor = northEastNeighbor.Color;
}
Vector3 center = v1 + 0.5f * (bridgeN + bridgeE);
center.y = (Mathf.Max(v1.y, e.y, n.y, ne.y) + Mathf.Min(v1.y, e.y, n.y, ne.y)) / 2f;
Color blendColor = GetBlendColor(cell.Color, northColor, eastColor, northEastColor);
// Triangle vertices should be clockwise
// First Triangle to add will be v1, n, center
AddTriangle(v1, n, center);
AddTriangleColor(cell.Color, northColor, blendColor);
// Second will be v1, center, e
AddTriangle(v1, center, e);
AddTriangleColor(cell.Color, blendColor, eastColor);
// Third will be n, ne, center
AddTriangle(n, ne, center);
AddTriangleColor(northColor, northEastColor, blendColor);
// Last is ne, e, center
AddTriangle(ne, e, center);
AddTriangleColor(northEastColor, eastColor, blendColor);
}
private void BuildBridge(SquareDirection direction, SquareCell cell, Vector3 v1, Vector3 v2)
{
SquareCell neighbor = cell.GetNeighbor(direction);
if (neighbor == null)
{
return;
}
Vector3 bridge = SquareMetrics.GetBridge(direction);
Vector3 v3 = v1 + bridge;
Vector3 v4 = v2 + bridge;
v3.y = v4.y = neighbor.transform.localPosition.y;
AddQuad(v1, v2, v3, v4);
AddQuadColor(cell.Color, neighbor.Color);
}
void Triangulate(SquareDirection direction, SquareCell cell)
{
int zLevel = Camera.main.GetComponent <CameraController>().DisplayZ;
cell.RefreshPosition();
Vector3 center = cell.transform.localPosition;
Vector3 v1 = center + SquareMetrics.GetFirstSolidCorner(direction);
Vector3 v2 = center + SquareMetrics.GetSecondSolidCorner(direction);
AddTriangle(center, v1, v2);
AddTriangleColor(cell.Color);
if (direction <= SquareDirection.E)
{
BuildBridge(direction, cell, v1, v2);
}
// From now on, we will only fill the hole from one direction
// North, because it's the first
if (direction == SquareDirection.N)
{
FillHole(cell, v2);
}
}
