protected TerrainTriangulationData GetConnectionEdgeVertices(
Hex source,
Hex neighbor,
HexDirections direction,
TerrainTriangulationData data,
float hexOuterRadius
)
{
Vector3 bridge = HexagonPoint.GetBridge(
direction,
hexOuterRadius
);
bridge.y = neighbor.Position.y - source.Position.y;
data.connectionEdgeVertices = new EdgeVertices(
data.centerEdgeVertices.vertex1 + bridge,
data.centerEdgeVertices.vertex5 + bridge
);
return(data);
}
private TerrainTriangulationData TriangulateNeighborTerrainCorner(
Hex source,
Hex neighbor,
Hex nextNeighbor,
HexDirections direction,
TerrainTriangulationData data,
float hexOuterRadius,
int wrapSize,
MapMeshChunkLayer terrain,
FeatureContainer features
)
{
// Create a 5th vertex and assign it with the elevation of the neighbor
// under consideration. This will be used as the final vertex in the
// triangle which fills the gap between bridges.
Vector3 vertex5 =
data.centerEdgeVertices.vertex5 + HexagonPoint.GetBridge(
direction.NextClockwise(),
hexOuterRadius
);
vertex5.y = nextNeighbor.Position.y;
if (source.elevation <= neighbor.elevation)
{
if (source.elevation <= nextNeighbor.elevation)
{
// This hex has lowest elevation, no rotation.
TriangulateTerrainCorner(
data.centerEdgeVertices.vertex5,
source,
data.connectionEdgeVertices.vertex5,
neighbor,
vertex5,
nextNeighbor,
hexOuterRadius,
wrapSize,
terrain,
features
);
}
else
{
// Next neighbor has lowest elevation, rotate counter-clockwise.
TriangulateTerrainCorner(
vertex5,
nextNeighbor,
data.centerEdgeVertices.vertex5,
source,
data.connectionEdgeVertices.vertex5,
neighbor,
hexOuterRadius,
wrapSize,
terrain,
features
);
}
}
else if (neighbor.elevation <= nextNeighbor.elevation)
{
// Neighbor is lowest hex, rotate triangle clockwise.
TriangulateTerrainCorner(
data.connectionEdgeVertices.vertex5,
neighbor,
vertex5,
nextNeighbor,
data.centerEdgeVertices.vertex5,
source,
hexOuterRadius,
wrapSize,
terrain,
features
);
}
else
{
// Next neighbor has lowest elevation, rotate counter-clockwise.
TriangulateTerrainCorner(
vertex5,
nextNeighbor,
data.centerEdgeVertices.vertex5,
source,
data.connectionEdgeVertices.vertex5,
neighbor,
hexOuterRadius,
wrapSize,
terrain,
features
);
}
return(data);
}
