So I’m working on a pong game as a way to get familiar with the engine, but I’ve ran into a problem when increasing my score. When the ball hits the paddle, the score increases but as it slightly still touches the paddle as it moves away from it, It still increases the score making the score go from 1 to 3 etc.
This could be fixed with something like a ‘wait until not colliding’ thing, but of course this isn’t Scratch and I’m not really sure how to implement such a thing in Godot. Can anyone help me out?
Alright, here it is (Credits to @Sven for giving me the code and @pennyloafers for helping me know what which one is which, I added the score counter and did some tweaks on my own)
extends CharacterBody2D
var speed = 500
var movement = Vector2(0, speed)
var score = 0
@onready var label = $"../Label"
func _physics_process(delta):
# moves charbody and returns collided objects, borders or paddles
var collision = move_and_collide(movement * delta)
if collision:
if collision.get_collider().name == "Paddle":
#reverses direction
speed = -speed
score += 1
label.text = str(score)
# gets difference position of paddle position and ball position.
var diff = collision.get_collider().position.y - position.y
# use difference to change up/down direction of ball movement.
var new_movement = Vector2(-diff * 6, speed)
# update movement
movement = new_movement
elif collision.get_collider().name == "Borders":
# collision normal is the direction the border is facing. Bounce function just reflects the movement vector at an angle between the normal and movement.
movement = movement.bounce(collision.get_normal())
It didn’t work, I think the problem now is that nothing actually happens when the variable is true or false. So I think an if/else condition should do the trick
Try adding a state like ‘is_colliding’ and only increase the score of the state is not true.
Set the state to true when the collision happens and reset it to false when there is no collision.
At first you can nest this inside the if-statement and later re-factor it.
Hi ZV1LLE,
I have expanded the code here so that it is at least functional. To make it useful for you, you may have to change it again. But it worked for me. My code is of course a little different, but I think you see what you need.
What are you actually planning to do with the scorekeeper for the ball?
extends CharacterBody2D
signal position_changed(y)
var speed = 900
var movement = Vector2(-speed, 0)
var can_move = false
var punkt = 0
var can_add_score = true
func _physics_process(delta):
rotation += 0.99
if can_move == true:
var collision_info = move_and_collide(movement * delta)
emit_signal("position_changed", position.y)
if collision_info:
if collision_info.get_collider().name == "Spieler" or collision_info.get_collider().name == "Spieler2" or collision_info.get_collider().name == "Gegner":
speed = -speed
$Treffer.play()
var diff = collision_info.get_collider().position.y - position.y
var new_movement = Vector2(speed, -diff * 12)
movement = new_movement
if can_add_score == true:
punkt += 1
$Label.text = str(punkt)
can_add_score = false
await get_tree().create_timer(0.2).timeout
can_add_score = true
elif collision_info.get_collider().name == "Wand" or collision_info.get_collider().name == "Wand2":
movement = movement.bounce(collision_info.get_normal())
$Treffer.play()
Oh @sven, it’s nice to see you again. The problem is the score increases even though the ball is slightly colliding making it go from 1 → 3 instead of 1 → 2 etc. I could take a look at your code and see what I could use to help me out. Thanks!
So I added the if/else condition and followed some of the format of your code, AND IT WORKED. The score now increases properly and isn’t having that skip anymore, I should really start using timers more
Any ways an off-topic question from me, How do I make it so that the ball actually changes directions when hitting the paddle instead of just going left.
I’ll make a separate topic for this if there aren’t any more replies. But either way, Thanks to everyone who helped me out in this topic!
That works, but now the same bug I had earlier is back. The ball goes slow when hitting the middle, but fast when hitting the edges of the paddle, How do I fix this?
But it’s okay, I’ll make a separate topic for this problem later so that this topic can be left as solved, so I won’t really be responding here anymore.
Thanks to everyone who helped me out in this topic, I highly appreciate it!
