pong tutorial errors

gibberingmouther

i put this here rather than in the tutorials section since i didn't want to clutter that one up. a mod can move it if they feel it is appropriate.

i'm getting the following error: "Unexpected token: if:" at line 28 of my code.

code: http://pastebin.com/YzVqrg0n

i don't know why i'm getting this error. i just started with Godot (but i do have some programming background) and i'm just working through the tutorials for now.

gibberingmouther

nevermind apparently if statements need indendation. i'd delete this thread but i'll leave it here in case someone else has the same problem.

edit: okay, that didn't fix everything. now i get an "unexpected indent" error at line 49. if i don't indent, i get the previous error. not sure what to do?

danjo

You have to indent your code properly. See http://docs.godotengine.org/en/stable/reference/gdscript.html#example-of-gdscript and http://www.diveintopython.net/getting_to_know_python/indenting_code.html

This should give you no indentation error:

extends Node2D
 
# Member variables
var screen_size
var pad_size
var direction = Vector2(1.0, 0.0)
 
# Constant for pad speed (in pixels/second)
const INITIAL_BALL_SPEED = 80
# Speed of the ball (also in pixels/second)
var ball_speed = INITIAL_BALL_SPEED
# Constant for pads speed
const PAD_SPEED = 150
 
func _ready():
    screen_size = get_viewport_rect().size
    pad_size = get_node("left").get_texture().get_size()
    set_process(true)
 
func _process(delta):
    var ball_pos = get_node("ball").get_pos()
    var left_rect = Rect2( get_node("left").get_pos() - pad_size*0.5, pad_size )
    var right_rect = Rect2( get_node("right").get_pos() - pad_size*0.5, pad_size )
    # Integrate new ball postion
    ball_pos += direction * ball_speed * delta
 
    # Flip when touching roof or floor
    if ((ball_pos.y < 0 and direction.y < 0) or (ball_pos.y > screen_size.y and direction.y > 0)):
        direction.y = -direction.y
     
    # Flip, change direction and increase speed when touching pads
    if ((left_rect.has_point(ball_pos) and direction.x < 0) or (right_rect.has_point(ball_pos) and direction.x > 0)):
        direction.x = -direction.x
        direction.y = randf()*2.0 - 1
        direction = direction.normalized()
        ball_speed *= 1.1
     
    # Check gameover
    if (ball_pos.x < 0 or ball_pos.x > screen_size.x):
        ball_pos = screen_size*0.5
        ball_speed = INITIAL_BALL_SPEED
        direction = Vector2(-1, 0)
     
    get_node("ball").set_pos(ball_pos)
     
    # Move left pad
    var left_pos = get_node("left").get_pos()
     
    if (left_pos.y > 0 and Input.is_action_pressed("left_move_up")):
        left_pos.y += -PAD_SPEED * delta
    if (left_pos.y < screen_size.y and Input.is_action_pressed("left_move_down")):
        left_pos.y += PAD_SPEED * delta
     
    get_node("left").set_pos(left_pos)
     
    # Move right pad
    var right_pos = get_node("right").get_pos()
     
    if (right_pos.y > 0 and Input.is_action_pressed("right_move_up")):
        right_pos.y += -PAD_SPEED * delta
    if (right_pos.y < screen_size.y and Input.is_action_pressed("right_move_down")):
        right_pos.y += PAD_SPEED * delta
     
    get_node("right").set_pos(right_pos)