public static void createQuad(float i, float j, float quadSize, Algorithm2 algorithm, TriangleList meshData, Transform transform)
{
// North
Vertex a = new Vertex(i, 0, j);
Vertex b = new Vertex(i, 0, j + quadSize);
Vertex c = new Vertex(i + quadSize, 0, j + quadSize);
Vertex d = new Vertex(i + quadSize, 0, j);
// Apply terrain features based on the algorithm
/*a.position = transform.TransformPoint(a.position);
* b.position = transform.TransformPoint(b.position);
* c.position = transform.TransformPoint(c.position);
* d.position = transform.TransformPoint(d.position);
* a.position = transform.InverseTransformPoint(a.position.normalized * algorithm.getHeight(a.position));
* b.position = transform.InverseTransformPoint(b.position.normalized * algorithm.getHeight(b.position));
* c.position = transform.InverseTransformPoint(c.position.normalized * algorithm.getHeight(c.position));
* d.position = transform.InverseTransformPoint(d.position.normalized * algorithm.getHeight(d.position));*/
// Texture coordinates
a.uv = calcUV(a.position);
b.uv = calcUV(b.position);
c.uv = calcUV(c.position);
d.uv = calcUV(d.position);
// Add to geometry
meshData.Add(new Triangle(a, b, c));
meshData.Add(new Triangle(c, d, a));
}
public void CreatePlane(float width, float depth, int subdivisionSteps)
{
this.sizeX = width;
this.sizeZ = depth;
this.subdivisionSteps = subdivisionSteps;
// Clear lists
Points = new PointList();
Triangles = new TriangleList();
// Vertices
// XZ plane
addVertex(new Point(sizeX / 2.0f, 0, -sizeZ / 2.0f));
addVertex(new Point(sizeX / 2.0f, 0, sizeZ / 2.0f));
addVertex(new Point(-sizeX / 2.0f, 0, -sizeZ / 2.0f));
addVertex(new Point(-sizeX / 2.0f, 0, sizeZ / 2.0f));
// Triangles
Triangles.Add(new Triangle(1, 0, 2));
Triangles.Add(new Triangle(3, 1, 2));
Subdivide(subdivisionSteps);
Debug.Log("Triangle count " + Triangles.Count + " Vertex count " + Points.Count);
}
public static void AddToCollision(Form_AreaEditor @base, VertexList vlist, Vertex[] vs, TriangleList tlist, Triangle[] ts)
{
foreach (Vertex v in vs)
{
vlist.Add(v);
}
foreach (Triangle t in ts)
{
tlist.Add(t);
}
@base.maps.ReloadCollisionInOpenGL();
}
private void Subdivide(int subdivisionSteps)
{
middlePointIndexCache = new Dictionary <Int64, int>();
for (int i = 0; i < subdivisionSteps; i++)
{
var triangles2 = new TriangleList();
foreach (var tri in Triangles)
{
// replace triangle by 4 triangles
int a = GetMiddlePoint(tri.v1, tri.v2);
int b = GetMiddlePoint(tri.v2, tri.v3);
int c = GetMiddlePoint(tri.v3, tri.v1);
triangles2.Add(new Triangle(tri.v1, a, c));
triangles2.Add(new Triangle(tri.v2, b, a));
triangles2.Add(new Triangle(tri.v3, c, b));
triangles2.Add(new Triangle(a, b, c));
}
Triangles = triangles2;
}
}
/**
* Add new Triangle
*/
private void AddTriangle(BSTriangle triangle, bool bCheckHalfEdge = true)
{
// see if it's same vertices
for (int i = 0; i < TriangleList.Count; ++i)
{
if (triangle == TriangleList[i])
{
return;
}
if (bCheckHalfEdge && triangle.HasSameHalfEdge(TriangleList[i]))
{
return;
}
}
TriangleList.Add(new BSTriangle(triangle.Vertices[0], triangle.Vertices[1], triangle.Vertices[2]));
}
public void CreateIcosphere(float radius, int subdivisionSteps)
{
this.radius = radius;
this.subdivisionSteps = subdivisionSteps;
// Clear lists
Points = new PointList();
Triangles = new TriangleList();
var t = (1.0f + Mathf.Sqrt(5.0f)) / 2.0f;
// Vertices
// XY plane
addVertex(new Point(-1, t, 0));
addVertex(new Point(1, t, 0));
addVertex(new Point(-1, -t, 0));
addVertex(new Point(1, -t, 0));
// YZ plane
addVertex(new Point(0, -1, t));
addVertex(new Point(0, 1, t));
addVertex(new Point(0, -1, -t));
addVertex(new Point(0, 1, -t));
// XZ plane
addVertex(new Point(t, 0, -1));
addVertex(new Point(t, 0, 1));
addVertex(new Point(-t, 0, -1));
addVertex(new Point(-t, 0, 1));
// Triangles
Triangles.Add(new Triangle(0, 11, 5));
Triangles.Add(new Triangle(0, 5, 1));
Triangles.Add(new Triangle(0, 1, 7));
Triangles.Add(new Triangle(0, 7, 10));
Triangles.Add(new Triangle(0, 10, 11));
// 5 adjacent triangles
Triangles.Add(new Triangle(1, 5, 9));
Triangles.Add(new Triangle(5, 11, 4));
Triangles.Add(new Triangle(11, 10, 2));
Triangles.Add(new Triangle(10, 7, 6));
Triangles.Add(new Triangle(7, 1, 8));
// 5 triangles around point 3
Triangles.Add(new Triangle(3, 9, 4));
Triangles.Add(new Triangle(3, 4, 2));
Triangles.Add(new Triangle(3, 2, 6));
Triangles.Add(new Triangle(3, 6, 8));
Triangles.Add(new Triangle(3, 8, 9));
// 5 adjacent triangles
Triangles.Add(new Triangle(4, 9, 5));
Triangles.Add(new Triangle(2, 4, 11));
Triangles.Add(new Triangle(6, 2, 10));
Triangles.Add(new Triangle(8, 6, 7));
Triangles.Add(new Triangle(9, 8, 1));
Subdivide(subdivisionSteps);
Debug.Log("Triangle count " + Triangles.Count + " Vertex count " + Points.Count);
}
