55 lines
1.2 KiB
TypeScript
55 lines
1.2 KiB
TypeScript
export interface IPoint {
|
|
x: number
|
|
y: number
|
|
}
|
|
|
|
export class Point implements IPoint {
|
|
public x: number
|
|
public y: number
|
|
|
|
constructor(x: number, y: number) {
|
|
this.x = x
|
|
this.y = y
|
|
}
|
|
|
|
// get x(): number { return this._x }
|
|
// get y(): number { return this._y }
|
|
|
|
public add(pt: IPoint): Point {
|
|
return new Point(this.x + pt.x, this.y + pt.y)
|
|
}
|
|
|
|
public sub(pt: IPoint): Point {
|
|
return new Point(this.x - pt.x, this.y - pt.y)
|
|
}
|
|
|
|
public mul(pt: IPoint): Point {
|
|
return new Point(this.x * pt.x, this.y * pt.y)
|
|
}
|
|
|
|
public div(pt: IPoint): Point {
|
|
return new Point(this.x / pt.x, this.y / pt.y)
|
|
}
|
|
|
|
public abs(): Point {
|
|
return new Point(Math.abs(this.x), Math.abs(this.y))
|
|
}
|
|
|
|
public magnitude(): number {
|
|
return Math.sqrt(Math.pow(this.x, 2) + Math.pow(this.y, 2))
|
|
}
|
|
|
|
public floor(): Point {
|
|
return new Point(Math.floor(this.x), Math.floor(this.y))
|
|
}
|
|
|
|
public round(): Point {
|
|
return new Point(Math.round(this.x), Math.round(this.y))
|
|
}
|
|
|
|
public bound(lower: number, higher: number): Point {
|
|
const x = Math.max(lower, Math.min(higher, this.x));
|
|
const y = Math.max(lower, Math.min(higher, this.y));
|
|
return new Point(x, y);
|
|
}
|
|
} |