import { gettext } from '../gettext'

export function exsultus(power: number | string = 50) {
	const msg = echo.bind(null, self)
	let jumppower = parseFloat(power as string)
	if (isNaN(jumppower)) {
		return msg(gettext('You need to pass in a number to exsultus!'))
	}
	/**
	 * The range of jumppower is -100% to 100%. Values less than zero cause a
	 * downward velocity. Values above 0 cause an upward velocity
	 */
	jumppower = Math.min(jumppower, 100)
	jumppower = Math.max(jumppower, -100)
	/**
	 * Here we scale the jumppower. With jumpPowerScalingFactor set to 100
	 * there is no scaling. If you set it to 50, then the player can jump up
	 * to a maximum of 50% of the total jump power potential.
	 * If you get the jumpPowerScalingFactor from a character or level attribute,
	 * this allows the jumping power of the player to increase as their magikal
	 * prowess increases, etc...
	 */
	const jumpPowerScalingFactor = 100
	const BukkitVelocityScaleFactor = 3.9 // Max valid velocity
	const jumpVelocity =
		(jumppower / 100) *
		(jumpPowerScalingFactor / 100) *
		BukkitVelocityScaleFactor
	const yDeltaV = jumpVelocity
	const xDeltaV = 0.0
	const zDeltaV = 0.0
	const Vector = Java.type('org.bukkit.util.Vector')
	self.setVelocity(new Vector(xDeltaV, yDeltaV, zDeltaV))
}