private void TriangulateEstuary(EdgeVertices e1, EdgeVertices e2, bool incomingRiver, Vector3 indices)
{
WaterShore.AddTriangle(e2.v1, e1.v2, e1.v1);
WaterShore.AddTriangle(e2.v5, e1.v5, e1.v4);
WaterShore.AddTriangleUV(
new Vector2(0f, 1f), new Vector2(0f, 0f), new Vector2(0f, 0f)
);
WaterShore.AddTriangleUV(
new Vector2(0f, 1f), new Vector2(0f, 0f), new Vector2(0f, 0f)
);
WaterShore.AddTriangleCellData(indices, weights2, weights1, weights1);
WaterShore.AddTriangleCellData(indices, weights2, weights1, weights1);
Estuaries.AddQuad(e2.v1, e1.v2, e2.v2, e1.v3);
Estuaries.AddTriangle(e1.v3, e2.v2, e2.v4);
Estuaries.AddQuad(e1.v3, e1.v4, e2.v4, e2.v5);
Estuaries.AddQuadUV(
new Vector2(0f, 1f), new Vector2(0f, 0f),
new Vector2(1f, 1f), new Vector2(0f, 0f));
Estuaries.AddTriangleUV(
new Vector2(0f, 0f), new Vector2(1f, 1f), new Vector2(1f, 1f));
Estuaries.AddQuadUV(
new Vector2(0f, 0f), new Vector2(0f, 0f),
new Vector2(1f, 1f), new Vector2(0f, 1f));
Estuaries.AddQuadCellData(indices, weights2, weights1, weights2, weights1);
Estuaries.AddTriangleCellData(indices, weights1, weights2, weights2);
Estuaries.AddQuadCellData(indices, weights1, weights2);
if (incomingRiver)
{
Estuaries.AddQuadUV2(
new Vector2(1.5f, 1f), new Vector2(0.7f, 1.15f),
new Vector2(1f, 0.8f), new Vector2(0.5f, 1.1f));
Estuaries.AddTriangleUV2(
new Vector2(0.5f, 1.1f), new Vector2(1f, 0.8f), new Vector2(0f, 0.8f));
Estuaries.AddQuadUV2(
new Vector2(0.5f, 1.1f), new Vector2(0.3f, 1.15f),
new Vector2(0f, 0.8f), new Vector2(-0.5f, 1f));
}
else
{
Estuaries.AddQuadUV2(
new Vector2(-0.5f, -0.2f), new Vector2(0.3f, -0.35f),
new Vector2(0f, 0f), new Vector2(0.5f, -0.3f));
Estuaries.AddTriangleUV2(
new Vector2(0.5f, -0.3f), new Vector2(0f, 0f), new Vector2(1f, 0f));
Estuaries.AddQuadUV2(
new Vector2(0.5f, -0.3f), new Vector2(0.7f, -0.35f),
new Vector2(1f, 0f), new Vector2(1.5f, -0.2f));
}
}
/// <summary>
/// Creates the estuary (when river meets shore) geometry.
/// </summary>
void TriangulateEstuary(EdgeVertices e1, EdgeVertices e2, bool incomingRiver, Vector3 indices)
{
// Some of the estuary is still water shore, namely one triangle on each side
// that leaves the estuary itself with a trapezoid shape connecting the shore/river to water
WaterShore.AddTriangle(e2.v1, e1.v2, e1.v1);
WaterShore.AddTriangle(e2.v5, e1.v5, e1.v4);
WaterShore.AddTriangleUV(new Vector2(0f, 1f), new Vector2(0f, 0f), new Vector2(0f, 0f));
WaterShore.AddTriangleUV(new Vector2(0f, 1f), new Vector2(0f, 0f), new Vector2(0f, 0f));
WaterShore.AddTriangleCellData(indices, weights2, weights1, weights1);
WaterShore.AddTriangleCellData(indices, weights2, weights1, weights1);
// Make the estuary trapezoid
Estuaries.AddQuad(e2.v1, e1.v2, e2.v2, e1.v3); // Adding it rotated for symetric geometry
Estuaries.AddTriangle(e1.v3, e2.v2, e2.v4);
Estuaries.AddQuad(e1.v3, e1.v4, e2.v4, e2.v5);
// For shore effect
Estuaries.AddQuadUV(
new Vector2(0f, 1f), new Vector2(0f, 0f),
new Vector2(1f, 1f), new Vector2(0f, 0f)
);
Estuaries.AddTriangleUV(
new Vector2(0f, 0f), new Vector2(1f, 1f), new Vector2(1f, 1f)
);
Estuaries.AddQuadUV(
new Vector2(0f, 0f), new Vector2(0f, 0f),
new Vector2(1f, 1f), new Vector2(0f, 1f)
);
Estuaries.AddQuadCellData(indices, weights2, weights1, weights2, weights1);
Estuaries.AddTriangleCellData(indices, weights1, weights2, weights2);
Estuaries.AddQuadCellData(indices, weights1, weights2);
// For river effect, depending on river flow direction UVs are different
// That is if river flows into the water or out of the water (e.g. when a river starts from a lake)
if (incomingRiver)
{
Estuaries.AddQuadUV2(new Vector2(1.5f, 1f), new Vector2(0.7f, 1.15f), new Vector2(1f, 0.8f), new Vector2(0.5f, 1.1f));
Estuaries.AddTriangleUV2(new Vector2(0.5f, 1.1f), new Vector2(1f, 0.8f), new Vector2(0f, 0.8f));
Estuaries.AddQuadUV2(new Vector2(0.5f, 1.1f), new Vector2(0.3f, 1.15f), new Vector2(0f, 0.8f), new Vector2(-0.5f, 1f));
}
else
{
Estuaries.AddQuadUV2(new Vector2(-0.5f, -0.2f), new Vector2(0.3f, -0.35f), new Vector2(0f, 0f), new Vector2(0.5f, -0.3f));
Estuaries.AddTriangleUV2(new Vector2(0.5f, -0.3f), new Vector2(0f, 0f), new Vector2(1f, 0f));
Estuaries.AddQuadUV2(new Vector2(0.5f, -0.3f), new Vector2(0.7f, -0.35f), new Vector2(1f, 0f), new Vector2(1.5f, -0.2f));
}
}
