public static void AddCircle(this DynamicPrimitive dynamicPrimitive, Vector3 center, float radius, int tessellation, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
dynamicPrimitive.BeginPrimitive(PrimitiveType.LineStrip, null, world, lineWidth);
{
if (tessellation < 3)
{
throw new ArgumentOutOfRangeException("tessellation");
}
int horizontalSegments = tessellation;
// Create a single ring of vertices at this latitude.
for (int j = 0; j <= horizontalSegments; j++)
{
float longitude = j * MathHelper.TwoPI / horizontalSegments;
float dx = (float)Math.Cos(longitude);
float dy = (float)Math.Sin(longitude);
Vector3 normal = new Vector3(dx, dy, 0);
dynamicPrimitive.AddVertex(normal * radius + center, color);
}
}
dynamicPrimitive.EndPrimitive();
}
public static void AddLine(this DynamicPrimitive dynamicPrimitive, Vector3 v1, Vector3 v2, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
dynamicPrimitive.BeginPrimitive(PrimitiveType.Lines, null, world, lineWidth);
{
dynamicPrimitive.AddVertex(v1, color);
dynamicPrimitive.AddVertex(v2, color);
}
dynamicPrimitive.EndPrimitive();
}
public static void AddLine(this DynamicPrimitive dynamicPrimitive, IEnumerable <Vector3> lineStrip, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
dynamicPrimitive.BeginPrimitive(PrimitiveType.LineStrip, null, world, lineWidth);
{
foreach (Vector3 position in lineStrip)
{
dynamicPrimitive.AddVertex(position, color);
}
}
dynamicPrimitive.EndPrimitive();
}
// TODO: Plane is in 3D
public static void AddPlane(this DynamicPrimitive dynamicPrimitive, Plane plane, float size, int tessellation, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
var transform = MathHelper.CreateRotation(new Vector3(0, 1, 0), plane.Normal) *
Matrix4x4.CreateTranslation(plane.Normal * plane.D);
if (world.HasValue)
{
transform *= world.Value;
}
AddGrid(dynamicPrimitive, 0, 0, 0, size, size, tessellation, tessellation, color, transform, lineWidth);
}
public static void AddSolidRectangle(this DynamicPrimitive dynamicPrimitive, Vector2 min, Vector2 max, Color color, TextureId?texture = null, Matrix4x4?world = null)
{
dynamicPrimitive.BeginPrimitive(PrimitiveType.Triangles, texture, world);
{
dynamicPrimitive.AddVertex(new Vector3(min.X, min.Y, 0), color, new Vector2(0, 0));
dynamicPrimitive.AddVertex(new Vector3(min.X, max.Y, 0), color, new Vector2(0, 1));
dynamicPrimitive.AddVertex(new Vector3(max.X, max.Y, 0), color, new Vector2(1, 1));
dynamicPrimitive.AddVertex(new Vector3(max.X, min.Y, 0), color, new Vector2(1, 0));
dynamicPrimitive.AddIndex(0);
dynamicPrimitive.AddIndex(1);
dynamicPrimitive.AddIndex(2);
dynamicPrimitive.AddIndex(2);
dynamicPrimitive.AddIndex(3);
dynamicPrimitive.AddIndex(0);
}
dynamicPrimitive.EndPrimitive();
}
// TODO: Add more advanced texture rectangles
// Like texture region and texture rotation
public static void AddRectangle(this DynamicPrimitive dynamicPrimitive, Vector2 min, Vector2 max, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
dynamicPrimitive.BeginPrimitive(PrimitiveType.Lines, null, world, lineWidth);
{
dynamicPrimitive.AddVertex(new Vector3(min.X, min.Y, 0), color);
dynamicPrimitive.AddVertex(new Vector3(min.X, max.Y, 0), color);
dynamicPrimitive.AddVertex(new Vector3(max.X, max.Y, 0), color);
dynamicPrimitive.AddVertex(new Vector3(max.X, min.Y, 0), color);
dynamicPrimitive.AddIndex(0);
dynamicPrimitive.AddIndex(1);
dynamicPrimitive.AddIndex(1);
dynamicPrimitive.AddIndex(2);
dynamicPrimitive.AddIndex(2);
dynamicPrimitive.AddIndex(3);
dynamicPrimitive.AddIndex(3);
dynamicPrimitive.AddIndex(0);
}
dynamicPrimitive.EndPrimitive();
}
public static void AddGrid(this DynamicPrimitive dynamicPrimitive, float x, float y, float z, float width, float height, int countX, int countZ, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
dynamicPrimitive.BeginPrimitive(PrimitiveType.Lines, null, world, lineWidth);
{
float incU = width / countX;
float incV = height / countZ;
for (int u = 0; u <= countX; u++)
{
dynamicPrimitive.AddVertex(new Vector3(x + 0, y, z + u * incU), color);
dynamicPrimitive.AddVertex(new Vector3(x + height, y, z + u * incU), color);
}
for (int v = 0; v <= countZ; v++)
{
dynamicPrimitive.AddVertex(new Vector3(x + v * incV, y, z + 0), color);
dynamicPrimitive.AddVertex(new Vector3(x + v * incV, y, z + width), color);
}
}
dynamicPrimitive.EndPrimitive();
}
public static void AddRectangle(this DynamicPrimitive dynamicPrimitive, Vector2 min, Vector2 max, Vector3 up, Color color, Matrix4x4?world = null, float lineWidth = 1)
{
var transform = MathHelper.CreateRotation(new Vector3(0, 1, 0), up);
dynamicPrimitive.BeginPrimitive(PrimitiveType.Lines, null, world, lineWidth);
{
dynamicPrimitive.AddVertex(Vector3.TransformNormal(new Vector3(min.X, min.Y, 0), transform), color);
dynamicPrimitive.AddVertex(Vector3.TransformNormal(new Vector3(min.X, max.Y, 0), transform), color);
dynamicPrimitive.AddVertex(Vector3.TransformNormal(new Vector3(max.X, max.Y, 0), transform), color);
dynamicPrimitive.AddVertex(Vector3.TransformNormal(new Vector3(max.X, min.Y, 0), transform), color);
dynamicPrimitive.AddIndex(0);
dynamicPrimitive.AddIndex(1);
dynamicPrimitive.AddIndex(1);
dynamicPrimitive.AddIndex(2);
dynamicPrimitive.AddIndex(2);
dynamicPrimitive.AddIndex(3);
dynamicPrimitive.AddIndex(3);
dynamicPrimitive.AddIndex(0);
}
dynamicPrimitive.EndPrimitive();
}
// TODO: Add with Nine.Geometry
//public static void AddSolidRectangle(this DynamicPrimitive dynamicPrimitive, BoundingRectangle rectangle, Color color, TextureId? texture = null, Matrix4x4? world = null)
// => AddSolidRectangle(dynamicPrimitive, new Vector2(rectangle.Left, rectangle.Top), new Vector2(rectangle.Right, rectangle.Bottom), color, texture, world);
public static void AddSolidRectangle(this DynamicPrimitive dynamicPrimitive, Rectangle rectangle, Color color, TextureId?texture = null, Matrix4x4?world = null)
=> AddSolidRectangle(dynamicPrimitive, new Vector2(rectangle.Left, rectangle.Top), new Vector2(rectangle.Right, rectangle.Bottom), color, texture, world);
public static void AddGrid(this DynamicPrimitive dynamicPrimitive, float x, float y, float z, float step, int countX, int countZ, Color color, Matrix4x4?world = null, float lineWidth = 1) => AddGrid(dynamicPrimitive, x, y, z, step * countX, step * countZ, countX, countZ, color, world, lineWidth);
