public static Mesh CreateWireTriangularPrism(Vector3 baseCenter, float baseWidth, float baseDepth, float topWidth, float topDepth, float height, Color color)
{
baseWidth = Mathf.Max(Mathf.Abs(baseWidth), 1e-4f);
baseDepth = Mathf.Max(Mathf.Abs(baseDepth), 1e-4f);
topWidth = Mathf.Max(Mathf.Abs(topWidth), 1e-4f);
topDepth = Mathf.Max(Mathf.Abs(topDepth), 1e-4f);
height = Mathf.Max(Mathf.Abs(height), 1e-4f);
List <Vector3> cornerPoints = PrismMath.CalcTriangPrismCornerPoints(baseCenter, baseWidth, baseDepth, topWidth, topDepth, height, Quaternion.identity);
Vector3 baseLeftPt = cornerPoints[(int)TriangularPrismCorner.BaseLeft];
Vector3 baseRightPt = cornerPoints[(int)TriangularPrismCorner.BaseRight];
Vector3 baseForwardPt = cornerPoints[(int)TriangularPrismCorner.BaseForward];
Vector3 topLeftPt = cornerPoints[(int)TriangularPrismCorner.TopLeft];
Vector3 topRightPt = cornerPoints[(int)TriangularPrismCorner.TopRight];
Vector3 topForwardPt = cornerPoints[(int)TriangularPrismCorner.TopForward];
Vector3[] positions = new Vector3[]
{
baseLeftPt, baseForwardPt, baseRightPt,
topLeftPt, topForwardPt, topRightPt
};
int[] indices = new int[] { 0, 1, 1, 2, 2, 0, 3, 4, 4, 5, 5, 3, 0, 3, 1, 4, 2, 5 };
Mesh mesh = new Mesh();
mesh.vertices = positions;
mesh.colors = ColorEx.GetFilledColorArray(positions.Length, color);
mesh.SetIndices(indices, MeshTopology.Lines, 0);
mesh.UploadMeshData(false);
return(mesh);
}
public override AABB GetAABB()
{
return(new AABB(PrismMath.CalcTriangPrismCornerPoints(_baseCenter, _width, _depth, _width, _depth, _height, _rotation)));
}
public bool ContainsPoint(Vector3 point)
{
return(PrismMath.ContainsPoint(point, _baseCenter, _width, _depth, _width, _depth, _height, _rotation, _epsilon));
}
public override bool Raycast(Ray ray, out float t)
{
return(PrismMath.RaycastTriangular(ray, out t, _baseCenter, _width, _depth, _width, _depth, _height, _rotation));
}
public static Mesh CreateTriangularPrism(Vector3 baseCenter, float baseWidth, float baseDepth, float topWidth, float topDepth, float height, Color color)
{
baseWidth = Mathf.Max(Mathf.Abs(baseWidth), 1e-4f);
baseDepth = Mathf.Max(Mathf.Abs(baseDepth), 1e-4f);
topWidth = Mathf.Max(Mathf.Abs(topWidth), 1e-4f);
topDepth = Mathf.Max(Mathf.Abs(topDepth), 1e-4f);
height = Mathf.Max(Mathf.Abs(height), 1e-4f);
List <Vector3> cornerPoints = PrismMath.CalcTriangPrismCornerPoints(baseCenter, baseWidth, baseDepth, topWidth, topDepth, height, Quaternion.identity);
Vector3 baseLeftPt = cornerPoints[(int)TriangularPrismCorner.BaseLeft];
Vector3 baseRightPt = cornerPoints[(int)TriangularPrismCorner.BaseRight];
Vector3 baseForwardPt = cornerPoints[(int)TriangularPrismCorner.BaseForward];
Vector3 topLeftPt = cornerPoints[(int)TriangularPrismCorner.TopLeft];
Vector3 topRightPt = cornerPoints[(int)TriangularPrismCorner.TopRight];
Vector3 topForwardPt = cornerPoints[(int)TriangularPrismCorner.TopForward];
Vector3[] positions = new Vector3[]
{
// Top face
topLeftPt, topForwardPt, topRightPt,
// Bottom face
baseLeftPt, baseRightPt, baseForwardPt,
// Back face
baseLeftPt, topLeftPt, topRightPt, baseRightPt,
// Left face
baseLeftPt, baseForwardPt, topForwardPt, topLeftPt,
// Right face
baseRightPt, topRightPt, topForwardPt, baseForwardPt
};
int[] indices = new int[]
{
// Top face
0, 1, 2,
// Bottom face
3, 4, 5,
// Back face
6, 7, 8,
8, 9, 6,
// Left face
10, 11, 12,
12, 13, 10,
// Right face
14, 15, 16,
16, 17, 14
};
Vector3 leftFaceNormal = Vector3.Cross((positions[11] - positions[10]), (positions[13] - positions[10])).normalized;
Vector3 rightFaceNormal = Vector3.Cross((positions[15] - positions[14]), (positions[17] - positions[14])).normalized;
Vector3[] normals = new Vector3[]
{
// Top face
Vector3.up, Vector3.up, Vector3.up,
// Bottom face
-Vector3.up, -Vector3.up, -Vector3.up,
// Back face
-Vector3.forward, -Vector3.forward, -Vector3.forward, -Vector3.forward,
// Left face
leftFaceNormal, leftFaceNormal, leftFaceNormal, leftFaceNormal,
// Right face
rightFaceNormal, rightFaceNormal, rightFaceNormal, rightFaceNormal
};
Mesh mesh = new Mesh();
mesh.vertices = positions;
mesh.colors = ColorEx.GetFilledColorArray(positions.Length, color);
mesh.normals = normals;
mesh.SetIndices(indices, MeshTopology.Triangles, 0);
mesh.UploadMeshData(false);
return(mesh);
}
