public void TriangulateEstuary(EdgeVertices edges1, EdgeVertices edges2, bool incomingRiver, Vector3 indices)
{
WaterShore.AddTriangle(edges2.v1, edges1.v2, edges1.v1);
WaterShore.AddTriangle(edges2.v5, edges1.v5, edges1.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(edges2.v1, edges1.v2, edges2.v2, edges1.v3);
Estuaries.AddTriangle(edges1.v3, edges2.v2, edges2.v4);
Estuaries.AddQuad(edges1.v3, edges1.v4, edges2.v4, edges2.v5);
Estuaries.AddQuadUV(new Vector2(0f, 1f), new Vector2(0f, 0f), new Vector2(0f, 1f), new Vector2(0f, 0f));
Estuaries.AddTriangleUV(new Vector2(0f, 0f), new Vector2(0f, 1f), new Vector2(0f, 1f));
Estuaries.AddQuadUV(0f, 0f, 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>
/// 三角化河口
/// </summary>
/// <param name="e1">自身纯色区扇形边（弧）</param>
/// <param name="e2">邻居纯色区扇形边（弧）</param>
/// <param name="incomingRiver">是否是流入河</param>
/// <param name="indices">临近六边形</param>
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); // 第一个顶点位于邻居六边形内所以用weights2，第二三个顶点位于自身六边形所以用weights1
waterShore.AddTriangleCellData(indices, weights2, weights1, weights1);
// 河口顶点 : e2: v1----v5
// e1: v2--v4
//
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);
// 该UV的v用于判断离岸远近，u用于匹配瀑布水流消失插值（瀑布下方为1，扩散外围为0）
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));
// 六边形格子数据
estuaries.AddQuadCellData(indices, weights2, weights1, weights2, weights1);
estuaries.AddTriangleCellData(indices, weights1, weights2, weights2);
estuaries.AddQuadCellData(indices, weights1, weights2);
// 如果是流入河流的河口
if (incomingRiver)
{
// uv2 用于匹配河水流动, v为河水流动方向
// 由于是河口位于桥的下面，所以v坐标是0.8~1，
// 由于水平面纯色区占比只有0.6，陆地水面交接处的桥是0.2+0.4，比陆地与陆地交接处的桥（0.2+0.2）大了50%,所以v坐标扩大50%，变成0.8~1.1
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));
}
// 如果是流出河流的河口（翻转uv）
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));
}
}
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, weights2, weights1, 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, -0.3f),
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)
);
}
}