private static void WriteCroppedQuad(TextureArea texture, Rectangle rect,
IDataStream<TransformedColouredTexturedVertex> dataStream, float horizontalCrop, float verticalCrop)
{
rect = rect.Translate(-0.5f, -0.5f).Scale(horizontalCrop, verticalCrop);
var atlasRect = new Rectangle(texture.AtlasTopLeft, texture.AtlasBottomRight);
atlasRect = atlasRect.Scale(horizontalCrop, verticalCrop);
dataStream.WriteRange(
new[]
{
MakeVertex(rect.TopLeft, atlasRect.TopLeft),
MakeVertex(rect.BottomRight, atlasRect.BottomRight),
MakeVertex(rect.BottomLeft, atlasRect.BottomLeft),
MakeVertex(rect.TopLeft, atlasRect.TopLeft),
MakeVertex(rect.TopRight, atlasRect.TopRight),
MakeVertex(rect.BottomRight, atlasRect.BottomRight)
});
}
private static void WriteQuad(TextureArea texture, Rectangle rect, IDataStream<TransformedColouredTexturedVertex> dataStream, float alpha)
{
rect = rect.Translate(-0.5f, -0.5f);
dataStream.WriteRange(
new[]
{
MakeVertex(rect.TopLeft, texture.AtlasTopLeft, alpha),
MakeVertex(rect.BottomRight, texture.AtlasBottomRight, alpha),
MakeVertex(rect.BottomLeft, texture.AtlasBottomLeft, alpha),
MakeVertex(rect.TopLeft, texture.AtlasTopLeft, alpha),
MakeVertex(rect.TopRight, texture.AtlasTopRight, alpha),
MakeVertex(rect.BottomRight, texture.AtlasBottomRight, alpha)
});
}
private void PerformUpdate(Vector2 size, TexturePatch textures,
string overrideTexture = null, float alpha = 1.0f)
{
var rectTL =
new Rectangle
{
TopLeft = new Vector2(0, 0),
BottomRight = new Vector2(textures.TL.Width, textures.TL.Height)
};
var rectT =
new Rectangle
{
TopLeft = new Vector2(textures.TL.Width, 0),
BottomRight = new Vector2(size.X - rectTL.Width, textures.T.Height)
};
var rectTR =
new Rectangle
{
TopLeft = new Vector2(rectT.Width + rectTL.Width, 0),
BottomRight = new Vector2(rectT.Width + rectTL.Width + textures.TR.Width, textures.TR.Height)
};
var rectL =
new Rectangle
{
TopLeft = new Vector2(0, rectTL.Height),
BottomRight = new Vector2(textures.L.Width, size.Y - rectTL.Height)
};
var rectC =
new Rectangle
{
TopLeft = new Vector2(textures.TL.Width, textures.TL.Height),
BottomRight = new Vector2(size.X - rectTL.Width, size.Y - rectTL.Height)
};
var rectR =
new Rectangle
{
TopLeft = new Vector2(size.X - rectTL.Width, rectTR.Height),
BottomRight = new Vector2(size.X, size.Y - rectTL.Height)
};
var rectBL =
new Rectangle
{
TopLeft = new Vector2(0, size.Y - textures.BL.Height),
BottomRight = new Vector2(textures.BL.Width, size.Y)
};
var rectB =
new Rectangle
{
TopLeft = new Vector2(textures.BL.Width, size.Y - textures.B.Height),
BottomRight = new Vector2(size.X - textures.BR.Width, size.Y)
};
var rectBR =
new Rectangle
{
TopLeft = new Vector2(size.X - textures.BR.Width, size.Y - textures.BR.Height),
BottomRight = new Vector2(size.X, size.Y)
};
rectTL = rectTL.Translate(_offset);
rectT = rectT.Translate(_offset);
rectTR = rectTR.Translate(_offset);
rectL = rectL.Translate(_offset);
rectC = rectC.Translate(_offset);
rectR = rectR.Translate(_offset);
rectBL = rectBL.Translate(_offset);
rectB = rectB.Translate(_offset);
rectBR = rectBR.Translate(_offset);
var dataStream = _textureRenderer.LockVertexBuffer();
WriteQuad(textures.TL, rectTL, dataStream, alpha);
WriteQuad(textures.T, rectT, dataStream, alpha);
WriteQuad(textures.TR, rectTR, dataStream, alpha);
WriteQuad(textures.L, rectL, dataStream, alpha);
WriteQuad(textures.C, rectC, dataStream, alpha);
WriteQuad(textures.R, rectR, dataStream, alpha);
WriteQuad(textures.BL, rectBL, dataStream, alpha);
WriteQuad(textures.B, rectB, dataStream, alpha);
WriteQuad(textures.BR, rectBR, dataStream, alpha);
var texture = textures.TL;
if (!string.IsNullOrEmpty(overrideTexture))
{
texture = _graphicsContext.GetTexture(overrideTexture).TextureArea;
}
_textureRenderer.UnlockVertexBuffer();
_textureRenderer.Render(PrimitiveType.TriangleList, 0, 18, texture, alpha, 1);
}
