Added PointF{,32}.ToInt that converts the point to a Point.

Added Point.In(Rectangle).

point.go

@@ -64,6 +64,14 @@ func (p Point) DistInt(q Point) int {
 	return ints.SubAbs(p.X, q.X) + ints.SubAbs(p.Y, q.Y)
 }
 
+// In tests if the point p is inside the rectangle r.
+func (p Point) In(r Rectangle) bool {
+	if p.X < r.Min.X || p.X >= r.Max.X || p.Y < r.Min.Y || p.Y >= r.Max.Y {
+		return false
+	}
+	return true
+}
+
 // Less returns true if q is above (Y is smaller) or left (X is smaller) than p. Otherwise returns false.
 func (p Point) Less(q Point) bool {
 	if p.Y == q.Y {

pointf.go

@@ -147,6 +147,11 @@ func (p PointF) To32() PointF32 {
 	return PointF32{float32(p.X), float32(p.Y)}
 }
 
+// ToInt transforms the point p into a Point.
+func (p PointF) ToInt() Point {
+	return Point{int(p.X), int(p.Y)}
+}
+
 // MaxPtF returns the point that is at the largest X & Y position of a and b.
 func MaxPtF(a, b PointF) PointF {
 	return PtF(Max(a.X, b.X), Max(a.Y, b.Y))

pointf32.go

@@ -147,6 +147,11 @@ func (p PointF32) To64() PointF {
 	return PointF{float64(p.X), float64(p.Y)}
 }
 
+// ToInt transforms the point p into a Point.
+func (p PointF32) ToInt() Point {
+	return Point{int(p.X), int(p.Y)}
+}
+
 // MaxPtF32 returns the point that is at the largest X & Y position of a and b.
 func MaxPtF32(a, b PointF32) PointF32 {
 	return PtF32(Max32(a.X, b.X), Max32(a.Y, b.Y))