/// <summary>Adds this block to the parent meshes linked list.
/// Call this during a reflow to reuse this same block again.</summary>
public void AddToParent()
{
BlockAfter = null;
ParentMesh.BlockCount++;
// Push it into the block chain:
if (ParentMesh.FirstBlock == null)
{
ParentMesh.FirstBlock = ParentMesh.LastBlock = this;
}
else
{
ParentMesh.LastBlock = ParentMesh.LastBlock.BlockAfter = this;
}
}
/// <summary>Allocates a block from this mesh. Note that the block object is actually shared. The block can then have
/// its vertices/triangles edited. Changes will be outputted visually when MeshBlock.Done is called.</summary>
public MeshBlock Allocate(Renderman renderer)
{
MeshBlock block = renderer.Block;
block.Colour = Color.white;
block.TextUV = null;
block.ImageUV = null;
if (FirstBuffer == null || CurrentBufferBlocks == MeshDataBufferPool.BlockCount)
{
NextBuffer();
}
// Apply buffer and block index:
block.Buffer = LastBuffer;
block.BlockIndex = CurrentBufferBlocks;
// Bump up the index:
CurrentBufferBlocks++;
return(block);
}
public bool Overlaps(MeshBlock block){
// Check if any of blocks 4 corners are within this square.
Vector3[] vertBuffer=block.ParentMesh.Vertices.Buffer;
// Apply inverse transform to blocks corners:
for(int i=0;i<4;i++){
// Map it:
Vector3 point=Transform.ApplyInverse(vertBuffer[block.VertexIndex+i]);
// Simple box test:
if(point.x<VertexBottomLeft.x || point.x>VertexBottomRight.x || point.y<VertexBottomLeft.y || point.y>VertexTopLeft.y){
continue;
}
return true;
}
return false;
}
public bool Overlaps(MeshBlock block)
{
// Check if any of blocks 4 corners are within this square.
Vector3[] vertBuffer = block.ParentMesh.Vertices.Buffer;
// Apply inverse transform to blocks corners:
for (int i = 0; i < 4; i++)
{
// Map it:
Vector3 point = Transform.ApplyInverse(vertBuffer[block.VertexIndex + i]);
// Simple box test:
if (point.x < VertexBottomLeft.x || point.x > VertexBottomRight.x || point.y < VertexBottomLeft.y || point.y > VertexTopLeft.y)
{
continue;
}
return(true);
}
return(false);
}
/// <summary>Adds this block to the parent meshes linked list.
/// Call this during a reflow to reuse this same block again.</summary>
public void AddToParent(){
BlockAfter=null;
ParentMesh.BlockCount++;
// Push it into the block chain:
if(ParentMesh.FirstBlock==null){
ParentMesh.FirstBlock=ParentMesh.LastBlock=this;
}else{
ParentMesh.LastBlock=ParentMesh.LastBlock.BlockAfter=this;
}
}
/// <summary>Allocates a block from this mesh. The block can then have
/// its vertices/triangles edited. Changes will be outputted visually when <see cref="PowerUI.DynamicMesh.Flush"/> is called.</summary>
public MeshBlock Allocate(){
MeshBlock result=new MeshBlock(this);
result.AddToParent();
return result;
}
/// <summary>Let the mesh know it's about to undergo a layout routine.
/// <see cref="PowerUI.Renderman.Layout"/>.</summary>
public void PrepareForLayout(){
FirstBlock=LastBlock=null;
LastBlockCount=BlockCount;
BlockCount=0;
}
/// <summary>Let the mesh know it's about to undergo a layout routine.
/// <see cref="PowerUI.Renderman.Layout"/>.</summary>
public void PrepareForLayout()
{
FirstBlock = LastBlock = null;
LastBlockCount = BlockCount;
BlockCount = 0;
}