uicore-ts/scripts/UIPoint.ts

UICore is a library to build native-like user interfaces using pure Typescript. No HTML is needed at all. Components are described as TS classes and all user interactions are handled explicitly. This library is strongly inspired by the UIKit framework tha

import { UIObject } from "./UIObject"


export class UIPoint extends UIObject {
    
    constructor(public x: number, public y: number) {
        
        super()
        
    }
    
    
    copy() {
        return new UIPoint(this.x, this.y)
    }
    
    
    isEqualTo(point: UIPoint) {
        return (this.x == point.x && this.y == point.y)
    }
    
    scale(zoom: number) {
        const x = this.x
        const y = this.y
        this.x = x * zoom
        this.y = y * zoom
        return this
    }
    
    
    add(point: UIPoint) {
        this.x = this.x + point.x
        this.y = this.y + point.y
        return this
    }
    
    subtract(point: UIPoint) {
        this.x = this.x - point.x
        this.y = this.y - point.y
        return this
    }
    
    to(targetPoint: UIPoint) {
        return targetPoint.copy().add(this.copy().scale(-1))
    }
    
    pointWithX(x: number) {
        const result = this.copy()
        result.x = x
        return result
    }
    
    pointWithY(y: number) {
        const result = this.copy()
        result.y = y
        return result
    }
    
    pointByAddingX(x: number) {
        return this.pointWithX(this.x + x)
    }
    
    pointByAddingY(y: number) {
        return this.pointWithY(this.y + y)
    }
    
    
    get length() {
        let result = this.x * this.x + this.y * this.y
        result = Math.sqrt(result)
        return result
    }
    
    
    didChange(b: any) {
        
        // Callback to be set by delegate
        
    }
    
    
}