boostParticle.gd

extends Node2D


# Declare member variables here. Examples:
# var a = 2
# var b = "text"

var initialVel = Vector2()
var cVel = initialVel

export(float) var boostValue = 2

var player
var boostBar

var line 
var lineLength = 30

var speed = 10

var oPos
var lPos

var timer = 0
# Called when the node enters the scene tree for the first time.
func _ready():
	randomize()
	initialVel = Vector2(randf()-0.5,randf()-0.5)
	initialVel = initialVel.normalized()*speed
	
	player = get_node("/root/Node2D/Player")
	boostBar = get_node("/root/Node2D/CanvasLayer/boostBar")
	
	line = get_node("Line2D")
	
	oPos = position
	lPos = oPos
	
	for i in range(lineLength):
		line.points[i] = Vector2(0,0)

func _process(delta):
	if timer < 1:
		timer += delta
	else:
		timer = 1
		speed += delta*10

	cVel = initialVel.linear_interpolate((player.position-position).normalized()*speed,timer)
	
	position = oPos.linear_interpolate(player.position,timer)
	
	oPos += initialVel
	
	for i in range(lineLength-1,0,-1):
		line.points[i] = line.points[i-1]-(position-lPos)
	
	line.points[0] = Vector2(0,0)
	
	if timer >= 1 and position.distance_to(player.position) <= speed:
		boostBar.changeBy(boostValue)
		queue_free()
	
	lPos = position