 |
Attention | Topic was automatically imported from the old Question2Answer platform. |
 |
Asked By | System_Error |
Hi all.
I’m trying to get a game I’ve been working on ready for mobile, and needed to replace the movement system. What I decided on was a simple, on-screen joystick, that the player would use to make the ship move forward/back, and turn left/right.
I’ve had the ship done for a while, but now that I’m refactoring the movement system to use the joystick instead of WASD, I’m a little bit lost. The ship is instanced, capable of being destroyed, and, if it has been destroyed, will be re-spawned when the player starts the level again. (I’ll get that last little bit done when I get to it, as right now I just want to get the movement system working again.)
Player.gd
extends RigidBody2D
const MAX_DURABILITY = 70
const MIN = -0.1
const MAX = 0.1
var thrust = Vector2(200,0)
var torque = 11250
var tele_ready = false
var damage_taken = 0
var explosion_scene = preload("res://resources/resource_scenes/Explosion.tscn")
var control_active = true
var can_teleport = true
func _ready():
self.set_contact_monitor(true)
func _integrate_forces(state):
if Input.is_action_pressed("forwards") and control_active == true:
$Thruster.set_emitting(true)
set_applied_force(thrust.rotated(rotation))
elif Input.is_action_pressed("backwards") and control_active == true:
set_applied_force(thrust.rotated(rotation)*-0.25)
else:
set_applied_force(Vector2())
$Thruster.set_emitting(false)
var rotation_dir = 0
if Input.is_action_pressed("turn_left") and control_active == true:
rotation_dir -= 1
if Input.is_action_pressed("turn_right") and control_active == true:
rotation_dir += 1
set_applied_torque(rotation_dir * torque)
func _input(event):
var destination = $TeleporterObjects/TeleportDestination.global_position
if Input.is_action_just_pressed("warp") == true:
if self.linear_velocity > Vector2(MAX,MAX) or self.linear_velocity < Vector2(MIN,MIN):
can_teleport = false
self.set_angular_damp(2)
self.set_linear_damp(3)
elif self.linear_velocity <= Vector2(MAX,MAX) or self.linear_velocity >= Vector2(MIN,MIN):
can_teleport = true
self.set_angular_damp(-1)
self.set_linear_damp(-1)
if Input.is_action_just_pressed("warp") and control_active == true and can_teleport == true:
mode = RigidBody2D.MODE_STATIC
$TeleporterObjects/TeleportTimer.start()
$TeleporterObjects/TeleChargeEffect.emitting = true
$TeleporterObjects/TeleportDestination/TeleportEffect.emitting = true
if tele_ready == false and Input.is_action_just_released("warp") and control_active == true and can_teleport == true:
$TeleporterObjects/TeleportTimer.stop()
mode = RigidBody2D.MODE_RIGID
sleeping = false
$TeleporterObjects/TeleChargeEffect.emitting = false
$TeleporterObjects/TeleportDestination/TeleportEffect.emitting = false
if tele_ready == true and Input.is_action_just_released("warp") and control_active == true and can_teleport == true:
self.global_position = destination
mode = RigidBody2D.MODE_RIGID
sleeping = false
$TeleporterObjects/TeleChargeEffect.emitting = false
$TeleporterObjects/TeleportDestination/TeleportEffect.emitting = false
$TeleporterObjects/TeleFullCharge.emitting = false
$TeleporterObjects/TeleportComplete.emitting = true
tele_ready = false
...
(There might also be a better way of doing the teleport/warp thing, but this is what I’ve got.)
joystick.gd
extends TouchScreenButton
var radius = Vector2(16,16)
var limit = 32
var ongoing_drag = -1
var return_accel = 15
var threshold = 10
func _process(delta):
if ongoing_drag == -1:
var pos_diff = (Vector2(0,0) - radius) - position
position += pos_diff * return_accel * delta
func get_button_pos():
return position + radius
func _input(event):
if event is InputEventScreenDrag or (event is InputEventScreenTouch and event.is_pressed()):
var event_dist_from_mid = (event.position - get_parent().global_position).length()
if event_dist_from_mid <= limit * global_scale.x or event.get_index() == ongoing_drag:
set_global_position(event.position - radius)
if get_button_pos().length() > limit:
set_position(get_button_pos().normalized() * limit - radius)
ongoing_drag = event.get_index()
if event is InputEventScreenTouch and !event.is_pressed() and event.get_index() == ongoing_drag:
ongoing_drag = -1
func get_value():
if get_button_pos().length() > threshold:
return get_button_pos().normalized()/16
return Vector2(0,0)
(I followed Gonkee’s joystick tutorial for this one.)
Again, I’m trying to re-do the movement section of my player-ship, replacing the keyboard-reliant WASD with an on-screen, in-game joystick. W and S will be replaced with the joystick’s Y input. A and D will, likewise, be replaced with the joystick’s X inputs. Or something like that.
Scene structure would have Joystick as a child node of HUD. HUD would be a sibling node to Player.