public static bool Contains(this IReadOnlyRectangle rectangle, Vector2 location)
{
var outsideX = (location.X < rectangle.Min.X) || (rectangle.Max.X < location.X);
var outsideY = (location.Y < rectangle.Min.Y) || (rectangle.Max.Y < location.Y);
return(!(outsideX || outsideY));
}
public static bool Contains(this IReadOnlyRectangle rectangle, IReadOnlyRectangle rectangleB)
{
var outsideX = (rectangleB.Min.X < rectangle.Min.X) || (rectangle.Max.X < rectangleB.Max.X);
var outsideY = (rectangleB.Min.Y < rectangle.Min.Y) || (rectangle.Max.Y < rectangleB.Max.Y);
return(!(outsideX || outsideY));
}
public static bool Intersects(this IReadOnlyRectangle rectangleA, IReadOnlyRectangle rectangleB)
{
bool noXintersect = (rectangleA.Max.X <= rectangleB.Min.X) || (rectangleA.Min.X >= rectangleB.Max.X);
bool noYintersect = (rectangleA.Max.Y <= rectangleB.Min.Y) || (rectangleA.Min.Y >= rectangleB.Max.Y);
return(!(noXintersect || noYintersect));
}
/// <summary>
/// Draws a rectangle using the provided texture coordinates.
/// </summary>
/// <param name="rectangle">The rectangle.</param>
/// <param name="texCoords">The texture coordinates of the rectangle.</param>
public static void Draw(this IReadOnlyRectangle rectangle, IReadOnlyRectangle texCoords)
{
//TODO: draw a rectangle with geometrical coordinates taken from rectangle and texture coordinates taken from texCoords
GL.Begin(PrimitiveType.Quads);
GL.Vertex2(rectangle.Min);
GL.Vertex2(rectangle.Max.X, rectangle.Min.Y);
GL.Vertex2(rectangle.Max);
GL.Vertex2(rectangle.Min.X, rectangle.Max.Y);
GL.End();
}
internal static void DrawRect(IReadOnlyRectangle rectangle, IReadOnlyRectangle texCoords)
{
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(texCoords.MinX, texCoords.MinY);
GL.Vertex2(rectangle.MinX, rectangle.MinY);
GL.TexCoord2(texCoords.MaxX, texCoords.MinY);
GL.Vertex2(rectangle.MaxX, rectangle.MinY);
GL.TexCoord2(texCoords.MaxX, texCoords.MaxY);
GL.Vertex2(rectangle.MaxX, rectangle.MaxY);
GL.TexCoord2(texCoords.MinX, texCoords.MaxY);
GL.Vertex2(rectangle.MinX, rectangle.MaxY);
GL.End();
}
private static void DrawRectangleTexture(IReadOnlyRectangle rectangle, IReadOnlyRectangle texCoords)
{
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.Enable(EnableCap.Texture2D);
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(texCoords.MinX, texCoords.MinY);
GL.Vertex2(rectangle.MinX, rectangle.MinY);
GL.TexCoord2(texCoords.MaxX, texCoords.MinY);
GL.Vertex2(rectangle.MaxX, rectangle.MinY);
GL.TexCoord2(texCoords.MaxX, texCoords.MaxY);
GL.Vertex2(rectangle.MaxX, rectangle.MaxY);
GL.TexCoord2(texCoords.MinX, texCoords.MaxY);
GL.Vertex2(rectangle.MinX, rectangle.MaxY);
GL.End();
GL.Disable(EnableCap.Texture2D);
GL.Disable(EnableCap.Blend);
}
private static void DrawCircleTexture(IReadOnlyCircle circle, IReadOnlyRectangle texCoords)
{
GL.Enable(EnableCap.Texture2D);
GL.Enable(EnableCap.Blend);
GL.Begin(PrimitiveType.Quads);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.TexCoord2(texCoords.MinX, texCoords.MinY);
GL.Vertex2(circle.Center.X - circle.Radius, circle.Center.Y - circle.Radius);
GL.TexCoord2(texCoords.MaxX, texCoords.MinY);
GL.Vertex2(circle.Center.X + circle.Radius, circle.Center.Y - circle.Radius);
GL.TexCoord2(texCoords.MaxX, texCoords.MaxY);
GL.Vertex2(circle.Center.X + circle.Radius, circle.Center.Y + circle.Radius);
GL.TexCoord2(texCoords.MinX, texCoords.MaxY);
GL.Vertex2(circle.Center.X - circle.Radius, circle.Center.Y + circle.Radius);
GL.End();
GL.Disable(EnableCap.Blend);
GL.Disable(EnableCap.Texture2D);
}
public Rectangle(IReadOnlyRectangle rectangle)
{
Min = rectangle.Min;
Size = rectangle.Size;
}
