Angle Tools

angleTools.ts

const angleTools = {
	/**
	 * Calculate the angle between two points in degrees.
	 */ 
	angle: (a: { x: number; y: number }, b: { x: number; y: number }) => {
		return (Math.atan2(b.y - a.y, b.x - a.x) / Math.PI) * 180
	},
	
	/**
	 * Calculate the distance between two points in a straight line in pixels.
	 */ 
	dist: (a: { x: number; y: number }, b: { x: number; y: number }) => {
		return Math.sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y) * (a.y - b.y))
	},
	
	/**
	 * Calculate the x and y changes needed to move in a straight line on a specific angle
	 */ 
	step: (angle: number, distance: number) => {
		return {
			x: distance * Math.cos((angle * Math.PI) / 180),
			y: distance * Math.sin((angle * Math.PI) / 180),
		}
	},
}