public void Image(string imageName,
Vector2? size = null, Vector2? topLeft = null,
float horizontalCrop = 1.0f, float verticalCrop = 1.0f,
Vector2 margin = new Vector2(), float alpha = 1f, float intensity = 1f)
{
if (topLeft == null)
{
topLeft = new Vector2();
}
var texture = _graphicsContext.GetTexture(imageName).TextureArea;
if (size == null)
{
size = texture.Size;
}
var dataStream = _textureRenderer.LockVertexBuffer();
var rect = new Rectangle(margin, size.Value - margin).Translate(_offset + topLeft.Value);
WriteCroppedQuad(texture, rect, dataStream, horizontalCrop, verticalCrop);
_textureRenderer.UnlockVertexBuffer();
_textureRenderer.Render(PrimitiveType.TriangleList, 0, 2, texture, alpha, intensity);
}
public TextureArea GetTexture(string filename, Rectangle rectangle)
{
var newTexture = GetTextureFromCache(filename);
// Determine pixel coordinates
var topLeft = new Vector
{
X = rectangle.TopLeft.X / newTexture.Width,
Y = rectangle.TopLeft.Y / newTexture.Height
};
var bottomRight = new Vector
{
X = rectangle.BottomRight.X / newTexture.Width,
Y = rectangle.BottomRight.Y / newTexture.Height
};
var newTextureArea = new TextureArea(newTexture.TextureId, new Vector(topLeft.X, topLeft.Y), new Vector(bottomRight.X, bottomRight.Y));
return newTextureArea;
}
private static void WriteRectangle(Rectangle extents, Color4 colour, IDataStream<TransformedColouredVertex> dataStream)
{
dataStream.WriteRange(
new[]
{
new TransformedColouredVertex
{
Colour = colour,
Position = new Vector4(extents.BottomLeft.X, extents.BottomLeft.Y, 1.0f, 1.0f)
},
new TransformedColouredVertex
{
Colour = colour,
Position = new Vector4(extents.TopLeft.X, extents.TopLeft.Y, 1.0f, 1.0f)
},
new TransformedColouredVertex
{
Colour = colour,
Position = new Vector4(extents.TopRight.X, extents.TopRight.Y, 1.0f, 1.0f)
},
new TransformedColouredVertex
{
Colour = colour,
Position = new Vector4(extents.BottomLeft.X, extents.BottomLeft.Y, 1.0f, 1.0f)
},
new TransformedColouredVertex
{
Colour = colour,
Position = new Vector4(extents.TopRight.X, extents.TopRight.Y, 1.0f, 1.0f)
},
new TransformedColouredVertex
{
Colour = colour,
Position = new Vector4(extents.BottomRight.X, extents.BottomRight.Y, 1.0f, 1.0f)
}
});
}
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 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 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);
}
public bool Intersects(Rectangle other)
{
return
!(BottomRight.X < other.TopLeft.X ||
TopLeft.X > other.BottomRight.X ||
BottomRight.Y > other.TopLeft.Y ||
TopLeft.Y < other.BottomRight.Y);
}
public Rectangle? IntersectingArea(Rectangle area)
{
if (!Intersects(area))
return null;
var left = Math.Max(TopLeft.X, area.TopLeft.X);
var right = Math.Min(BottomRight.X, area.BottomRight.X);
var top = Math.Min(TopLeft.Y, area.TopLeft.Y);
var bottom = Math.Max(BottomRight.Y, area.BottomRight.Y);
return new Rectangle(new Vector2(left, top), new Vector2(right, bottom));
}
