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extends Node2D
# Member variables
const INITIAL_BALL_SPEED = 80
var ball_speed = INITIAL_BALL_SPEED
var screen_size = Vector2(640, 400)
# Default ball direction
var direction = Vector2(-1, 0)
var pad_size = Vector2(8, 32)
const PAD_SPEED = 150
func _process(delta):
# Get ball position and pad rectangles
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
ball_speed *= 1.1
direction.y = randf()*2.0 - 1
direction = direction.normalized()
# 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)
func _ready():
screen_size = get_viewport_rect().size # Get actual size
pad_size = get_node("left").get_texture().get_size()
set_process(true)
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