/// <summary>
/// Forced updated of the boundingbox scanning all the
/// vertices of the cell for their height position
/// </summary>
private void UpdateBoundingBox()
{
float minH = float.MaxValue;
float maxH = float.MinValue;
float height = 0f;
for (int y = 0; y < divisions.Y; y++)
{
for (int x = 0; x < divisions.X; x++)
{
height = vertices[x + y * divisions.X].Position.Y;
if (height < minH)
{
minH = height;
}
if (height > maxH)
{
maxH = height;
}
}
}
Vector3 Min = new Vector3(position.X, minH, position.Z);
Vector3 Max = new Vector3(position.X + divisions.X * cellsize.X - cellsize.X, maxH, position.Z + divisions.Y * cellsize.Y - cellsize.Y);
center.Y = Min.Y + (Max.Y - Min.Y) / 2f;
boundingBox = new BoundingBox(Min, Max);
boundingBoxWire = new DrawableBoundingBox(Vector3.Zero, Min, Max);
minHeight = minH;
maxHeight = maxH;
}
private void InitBoundingBox()
{
if (model.Tag != null)
{
BoundingBox modelBounds = (BoundingBox)model.Tag;
boundingBox = new DrawableBoundingBox(position, modelBounds.Min, modelBounds.Max);
}
}
private void SetupVertices()
{
vertexDeclaration = new VertexDeclaration(Editor.graphics.GraphicsDevice, VertexPositionNormalTexture.VertexElements);
vertex = new VertexPositionNormalTexture[4];
vertex[0] = new VertexPositionNormalTexture(new Vector3(-10f, 15f, 0f), Vector3.Forward, new Vector2(0f, 0f));
vertex[1] = new VertexPositionNormalTexture(new Vector3(10f, 15f, 0f), Vector3.Forward, new Vector2(1f, 0f));
vertex[2] = new VertexPositionNormalTexture(new Vector3(-10f, -15f, 0f), Vector3.Forward, new Vector2(0f, 1f));
vertex[3] = new VertexPositionNormalTexture(new Vector3(10f, -15f, 0f), Vector3.Forward, new Vector2(1f, 1f));
vertexBuffer = new VertexBuffer(Editor.graphics.GraphicsDevice, typeof(VertexPositionNormalTexture), vertex.Length, BufferUsage.None);
vertexBuffer.SetData <VertexPositionNormalTexture>(vertex);
boundingBox = new DrawableBoundingBox(position, vertex[2].Position - new Vector3(2f, 2f, 2f), vertex[1].Position + new Vector3(2f, 2f, 2f));
}
private void UpdateBoundingBox(float minHeight, float maxHeight)
{
if (minHeight < this.minHeight)
{
this.minHeight = minHeight;
}
if (maxHeight > this.maxHeight)
{
this.maxHeight = maxHeight;
}
Vector3 Min = new Vector3(position.X, this.minHeight, position.Z);
Vector3 Max = new Vector3(position.X + divisions.X * cellsize.X - cellsize.X, this.maxHeight, position.Z + divisions.Y * cellsize.Y - cellsize.Y);
center.Y = Min.Y + (Max.Y - Min.Y) / 2f;
boundingBox = new BoundingBox(Min, Max);
boundingBoxWire = new DrawableBoundingBox(Vector3.Zero, Min, Max);
}
