private void Initialize()
{
timeStamp = Time.time;
SubmergedTriangles.Clear();
TriangleBufferIndices.Clear();
}
private float CuttingAlgorithmHorizontal(VertexInfo top, VertexInfo mid, VertexInfo bottom, int triangleIndex)
{
if (top.height - mid.height < epsilon)
{
int triangleType = (mid.height - bottom.height < epsilon) ? 2 : 1;
TriangleInfo triangle;
if ((top.clockwiseOrder + 1) % 3 == mid.clockwiseOrder)
{
triangle = new TriangleInfo(top, mid, bottom, triangleType, Rigidbody3d, timeStamp);
}
else
{
triangle = new TriangleInfo(mid, top, bottom, triangleType, Rigidbody3d, timeStamp);
}
TriangleBufferIndices.Add(triangleIndex);
SubmergedTriangles.Add(triangle);
return(triangle.area);
}
else if (mid.height - bottom.height < epsilon)
{
TriangleInfo triangle;
if ((top.clockwiseOrder + 1) % 3 == mid.clockwiseOrder)
{
triangle = new TriangleInfo(top, mid, bottom, 0, Rigidbody3d, timeStamp);
}
else
{
triangle = new TriangleInfo(top, bottom, mid, 0, Rigidbody3d, timeStamp);
}
TriangleBufferIndices.Add(triangleIndex);
SubmergedTriangles.Add(triangle);
return(triangle.area);
}
float tPointCutTB = (mid.height - bottom.height) / (top.height - bottom.height);
Vector3 pointCutTB = bottom.globalVertex + (top.globalVertex - bottom.globalVertex) * tPointCutTB;
VertexInfo cutTB = new VertexInfo
{
clockwiseOrder = -1, // no more use
globalVertex = pointCutTB,
height = WaterPatch.instance.DistanceToWater(pointCutTB, timeStamp),
};
TriangleInfo upside, downside;
if ((top.clockwiseOrder + 1) % 3 == mid.clockwiseOrder)
{
// downLeft: bottom, downRight: mid
upside = new TriangleInfo(top, mid, cutTB, 0, Rigidbody3d, timeStamp);
downside = new TriangleInfo(cutTB, mid, bottom, 1, Rigidbody3d, timeStamp);
}
else
{
// downLeft: mid, downRight: bottom
upside = new TriangleInfo(top, cutTB, mid, 0, Rigidbody3d, timeStamp);
downside = new TriangleInfo(mid, cutTB, bottom, 1, Rigidbody3d, timeStamp);
}
TriangleBufferIndices.Add(triangleIndex);
TriangleBufferIndices.Add(triangleIndex);
SubmergedTriangles.Add(upside);
SubmergedTriangles.Add(downside);
return(upside.area + downside.area);
}