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Asked By | ThreeSpark |
I am using an Area2D as the player. I want it to shoot an arrow at the player’s position and a certain rotation. This is all going well, but there’s one problem - it’s starting position changes based on the position of the player. When the player is at (0, 0), it gets spawned at the player’s position. When the player moves towards the center of the screen, or really anywhere other than (0, 0), the arrow gets spawned at a seemingly random location. Could someone please help me?
You’ll need to share some of your code in order to see what you might be doing wrong. My guess is that you need to use global_position rather than position (which is relative) when setting the arrow, but seeing the code would make it clear.
kidscancode | 2018-11-23 21:07
Sure thing. Keep in mind, there is a separate scene called “bow” which I instanced as a child in the player scene. I decided not to include its code, since all it does is rotate based on the cursor’s position.
Player code:
extends Area2D
var mouse_pos
var m_pos
var g_mouse_pos
var g_m_pos
var speed = 5
var dash = "false"
var new_anim
var anim
var direction = "right"
enum {IRIGHT, ILEFT, WRIGHT, WLEFT}
var state
var archer_arrow = preload("res://archer_arrow.tscn")
func change_state(new_state):
#changing state
state = new_state
match state:
IRIGHT:
new_anim = "idle_right"
ILEFT:
new_anim = "idle_left"
WRIGHT:
new_anim = "walk_right"
WLEFT:
new_anim = "walk_left"
func shoot():
#shoot
var a = archer_arrow.instance()
a.start(global_position, $bow.rotation)
add_child(a)
func _process(delta):
#variables
mouse_pos = get_viewport().get_mouse_position()
g_mouse_pos = get_global_mouse_position()
m_pos = get_transform().affine_inverse() * mouse_pos
g_m_pos = get_transform().affine_inverse() * g_mouse_pos
if mouse_pos.x < position.x:
direction = "left"
if mouse_pos.x > position.x:
direction = "right"
#setting aim line
$bow/Line2D.set_point_position(0, $bow/Position2D.position)
$bow/Line2D.set_point_position(1, $bow/Position2D2.position)
#movement
if Input.is_action_pressed("right") and direction == "right":
position.x += speed
change_state(WRIGHT)
if Input.is_action_pressed("right") and direction == "left":
position.x += speed
change_state(WLEFT)
if Input.is_action_pressed("left") and direction == "right":
position.x -= speed
change_state(WRIGHT)
if Input.is_action_pressed("left") and direction == "left":
position.x -= speed
change_state(WLEFT)
if Input.is_action_pressed("down") and direction == "right":
position.y += speed
change_state(WRIGHT)
if Input.is_action_pressed("down") and direction == "left":
position.y += speed
change_state(WLEFT)
if Input.is_action_pressed("up") and direction == "right":
position.y -= speed
change_state(WRIGHT)
if Input.is_action_pressed("up") and direction == "left":
position.y -= speed
change_state(WLEFT)
if !Input.is_action_pressed("right") and !Input.is_action_pressed("left") and !Input.is_action_pressed("down") and !Input.is_action_pressed("up"):
if direction == "right":
change_state(IRIGHT)
if direction == "left":
change_state(ILEFT)
#shoot
if Input.is_action_just_pressed("Lclick"):
shoot()
if new_anim != anim:
anim = new_anim
$AnimationPlayer.play(anim)
Arrow/Bullet code:
extends KinematicBody2D
var speed = 10000
var velocity = Vector2()
func _ready():
position = get_parent().position
func start(pos, dir):
rotation = dir
position = pos
velocity = Vector2(speed, 0).rotated(rotation)
func _process(delta):
move_and_slide(velocity * delta)
ThreeSpark | 2018-11-23 21:14
At first I thought it was because I was using position instead of velocity (I knew this wasn’t true, but it had been an hour, and I was willing to try anything) so I changed it to a kinematic body and used move_and_slide(vel * delta) which also didn’t work, so I changed it back to an Area2D, and changed the code accordingly
ThreeSpark | 2018-11-23 21:23