60 lines
1.4 KiB
GDScript3
60 lines
1.4 KiB
GDScript3
|
extends CharacterBody2D
|
||
|
|
|
||
|
|
var win_size :Vector2
|
||
|
|
const START_SPEED : int = 500
|
||
|
|
const ACCEL : int = 50
|
||
|
|
var speed : int
|
||
|
|
var dir : Vector2
|
||
|
|
const MAX_Y_VECTOR : float = 0.6
|
||
|
|
|
||
|
|
@onready var ballCollisionSound = $"../ballCollisionSound"
|
||
|
|
|
||
|
|
# Called when the node enters the scene tree for the first time.
|
||
|
|
func _ready():
|
||
|
|
win_size = get_viewport_rect().size
|
||
|
|
|
||
|
|
func new_ball():
|
||
|
|
# Randomize start position and direction
|
||
|
|
position.x = win_size.x / 2
|
||
|
|
position.y = randi_range(200, win_size.y - 200)
|
||
|
|
speed = START_SPEED
|
||
|
|
dir = random_direction()
|
||
|
|
|
||
|
|
|
||
|
|
# Called every frame. 'delta' is the elapsed time since the previous frame
|
||
|
|
func _physics_process(delta):
|
||
|
|
var collision = move_and_collide(dir * speed * delta)
|
||
|
|
var collider
|
||
|
|
if collision:
|
||
|
|
collider = collision.get_collider()
|
||
|
|
# if ball hits paddle
|
||
|
|
if collider == $"../Player" or collider == $"../CPU":
|
||
|
|
ballCollisionSound.play()
|
||
|
|
speed += ACCEL
|
||
|
|
dir = new_direction(collider)
|
||
|
|
# if the ball hits a wall
|
||
|
|
else:
|
||
|
|
dir = dir.bounce(collision.get_normal())
|
||
|
|
|
||
|
|
|
||
|
|
func random_direction():
|
||
|
|
var new_dir := Vector2()
|
||
|
|
new_dir.x = [1, -1].pick_random()
|
||
|
|
new_dir.y = randf_range(-1, 1)
|
||
|
|
return new_dir.normalized()
|
||
|
|
|
||
|
|
|
||
|
|
func new_direction(collider):
|
||
|
|
var ball_y = position.y
|
||
|
|
var pad_y = collider.position.y
|
||
|
|
var dist = ball_y - pad_y
|
||
|
|
var new_dir := Vector2()
|
||
|
|
|
||
|
|
# flip the horizzintal direction
|
||
|
|
if dir.x > 0:
|
||
|
|
new_dir.x = -1
|
||
|
|
else:
|
||
|
|
new_dir.x = 1
|
||
|
|
new_dir.y = (dist / (collider.p_height / 2)) * MAX_Y_VECTOR
|
||
|
|
return new_dir.normalized()
|