interesting
/
go-opengl-pixel
mirror of https://github.com/faiface/pixel.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

add Rect.Union

This commit is contained in:
faiface 2017-05-05 15:43:24 +02:00
parent 3d3cbd6027
commit e9a3c900cf
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
geometry.go
View File

@ -272,6 +272,16 @@ func (r Rect) Contains(u Vec) bool {
return r.Min.X() <= u.X() && u.X() <= r.Max.X() && r.Min.Y() <= u.Y() && u.Y() <= r.Max.Y() return r.Min.X() <= u.X() && u.X() <= r.Max.X() && r.Min.Y() <= u.Y() && u.Y() <= r.Max.Y()
} }
// Union returns a minimal Rect which covers both r and s. Rects r and s should be normalized.
func (r Rect) Union(s Rect) Rect {
return R(
math.Min(r.Min.X(), s.Min.X()),
math.Min(r.Min.Y(), s.Min.Y()),
math.Max(r.Max.X(), s.Max.X()),
math.Max(r.Max.Y(), s.Max.Y()),
)
}
// Matrix is a 3x3 transformation matrix that can be used for all kinds of spacial transforms, such // Matrix is a 3x3 transformation matrix that can be used for all kinds of spacial transforms, such
// as movement, scaling and rotations. // as movement, scaling and rotations.
// //