123 lines
2.7 KiB
GDScript
123 lines
2.7 KiB
GDScript
class_name AbstractProjectile
|
|
extends Area2D
|
|
|
|
|
|
const PLAYER_LAYER = 2
|
|
const ENEMY_LAYER = 4
|
|
const PLAYER_PROJECTILE_LAYER = 8
|
|
const ENEMY_PROJECTILE_LAYER = 16
|
|
|
|
|
|
@export_range(0, 1000) var speed : int = 0
|
|
|
|
|
|
var direction : Vector2
|
|
var ship_velocity: Vector2
|
|
|
|
var collide_players: bool:
|
|
set(value):
|
|
collide_players = value
|
|
_apply_collision_mask()
|
|
|
|
var collide_enemies: bool:
|
|
set(value):
|
|
collide_enemies = value
|
|
_apply_collision_mask()
|
|
|
|
|
|
var _velocity: Vector2
|
|
|
|
|
|
@onready var collision : CollisionShape2D = $CollisionShape2D
|
|
@onready var out_of_screen_timer : Timer = $OutOfScreenTimer
|
|
|
|
|
|
func _ready() -> void:
|
|
_velocity = direction.normalized() * speed + ship_velocity
|
|
_update_collision_rotation(_velocity)
|
|
|
|
_apply_collision_mask()
|
|
|
|
|
|
func _physics_process(delta: float) -> void:
|
|
position += _velocity * delta
|
|
|
|
|
|
func _apply_collision_mask() -> void:
|
|
_apply_collision_mask_to_area(self)
|
|
|
|
|
|
func _apply_collision_mask_to_area(area: Area2D) -> void:
|
|
if collide_players:
|
|
area.collision_layer |= ENEMY_PROJECTILE_LAYER
|
|
area.collision_mask |= PLAYER_LAYER
|
|
else:
|
|
area.collision_layer &= ~ENEMY_PROJECTILE_LAYER
|
|
area.collision_mask &= ~PLAYER_LAYER
|
|
|
|
if collide_enemies:
|
|
area.collision_layer |= PLAYER_PROJECTILE_LAYER
|
|
area.collision_mask |= ENEMY_LAYER
|
|
else:
|
|
area.collision_layer &= ~PLAYER_PROJECTILE_LAYER
|
|
area.collision_mask &= ~ENEMY_LAYER
|
|
|
|
|
|
func _update_collision_rotation(velocity: Vector2) -> void:
|
|
collision.rotation = velocity.angle() - 0.5 * PI
|
|
|
|
|
|
func _on_screen_entered() -> void:
|
|
out_of_screen_timer.stop()
|
|
|
|
|
|
func _on_screen_exited() -> void:
|
|
out_of_screen_timer.start()
|
|
|
|
|
|
func _on_out_of_screen_timer_timeout() -> void:
|
|
queue_free()
|
|
|
|
|
|
func _try_to_damage(body: Node2D, damage: AbstractDamage) -> bool:
|
|
var health_component : Health = body.find_child("Health")
|
|
if health_component and health_component.has_method("apply_damage"):
|
|
health_component.apply_damage(damage)
|
|
return true
|
|
return false
|
|
|
|
|
|
func _process_hit_for_projectile(_collided_body: Node2D) -> void:
|
|
queue_free()
|
|
|
|
|
|
func _get_nearest_foe(filter: Array[AbstractShip] = []) -> AbstractShip:
|
|
var nearest_foe : AbstractShip = null
|
|
var minimal_distance := 1000000
|
|
|
|
for foe in _get_foes(filter):
|
|
var distance := floori(position.distance_to(foe.position))
|
|
if distance < minimal_distance:
|
|
minimal_distance = distance
|
|
nearest_foe = foe
|
|
|
|
return nearest_foe
|
|
|
|
|
|
func _get_foes(filter: Array[AbstractShip] = []) -> Array[AbstractShip]:
|
|
var foes : Array[AbstractShip] = []
|
|
|
|
var flags_by_group : Dictionary[String, bool] = {
|
|
"enemies": collide_enemies,
|
|
"players": collide_players,
|
|
}
|
|
|
|
for group in flags_by_group:
|
|
if not flags_by_group[group]: continue
|
|
var nodes := get_tree().get_nodes_in_group(group)
|
|
for node in nodes:
|
|
if not node in filter:
|
|
foes.append(node)
|
|
|
|
return foes
|