mirror of https://github.com/tidwall/tile38.git
78 lines
1.5 KiB
Go
78 lines
1.5 KiB
Go
// Copyright 2018 Joshua J Baker. All rights reserved.
|
|
// Use of this source code is governed by an MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package geometry
|
|
|
|
// Point ...
|
|
type Point struct {
|
|
X, Y float64
|
|
}
|
|
|
|
// Move ...
|
|
func (point Point) Move(deltaX, deltaY float64) Point {
|
|
return Point{X: point.X + deltaX, Y: point.Y + deltaY}
|
|
}
|
|
|
|
// Empty ...
|
|
func (point Point) Empty() bool {
|
|
return false
|
|
}
|
|
|
|
// Rect ...
|
|
func (point Point) Rect() Rect {
|
|
return Rect{point, point}
|
|
}
|
|
|
|
// ContainsPoint ...
|
|
func (point Point) ContainsPoint(other Point) bool {
|
|
return point == other
|
|
}
|
|
|
|
// IntersectsPoint ...
|
|
func (point Point) IntersectsPoint(other Point) bool {
|
|
return point == other
|
|
}
|
|
|
|
// ContainsRect ...
|
|
func (point Point) ContainsRect(rect Rect) bool {
|
|
return point.Rect() == rect
|
|
}
|
|
|
|
// IntersectsRect ...
|
|
func (point Point) IntersectsRect(rect Rect) bool {
|
|
return rect.ContainsPoint(point)
|
|
}
|
|
|
|
// ContainsLine ...
|
|
func (point Point) ContainsLine(line *Line) bool {
|
|
if line == nil {
|
|
return false
|
|
}
|
|
return !line.Empty() && line.Rect() == point.Rect()
|
|
}
|
|
|
|
// IntersectsLine ...
|
|
func (point Point) IntersectsLine(line *Line) bool {
|
|
if line == nil {
|
|
return false
|
|
}
|
|
return line.IntersectsPoint(point)
|
|
}
|
|
|
|
// ContainsPoly ...
|
|
func (point Point) ContainsPoly(poly *Poly) bool {
|
|
if poly == nil {
|
|
return false
|
|
}
|
|
return !poly.Empty() && poly.Rect() == point.Rect()
|
|
}
|
|
|
|
// IntersectsPoly ...
|
|
func (point Point) IntersectsPoly(poly *Poly) bool {
|
|
if poly == nil {
|
|
return false
|
|
}
|
|
return poly.IntersectsPoint(point)
|
|
}
|