Added projectile deletion

game/entities/weapons/projectiles/abstract_projectile.gd

@@ -2,6 +2,13 @@ class_name AbstractProjectile
 extends CharacterBody2D
 
 
+const PLAYER_LAYER = 2
+const ENEMY_LAYER = 4
+const PLAYER_PROJECTILE_LAYER = 8
+const ENEMY_PROJECTILE_LAYER = 16
+const PROJECTILE_BORDER_LAYER = 32
+
+
 signal destroyed
 
 
@@ -12,6 +19,20 @@ signal destroyed
 @export var max_distance : int
 @export var max_livetime : int
 
+@export var collide_player: bool:
+	set(value):
+		collide_player = value
+		_apply_collision_mask()
+	get:
+		return collide_player
+
+@export var collide_enemies: bool:
+	set(value):
+		collide_enemies = value
+		_apply_collision_mask()
+	get:
+		return collide_enemies
+
 
 var _traveled_distance: float
 var _livetime: float
@@ -19,10 +40,14 @@ var _livetime: float
 
 func _ready() -> void:
 	velocity = direction.normalized() * speed
+	_apply_collision_mask()
 
 
-func move(delta: float) -> void:
-	position += velocity * delta
+func _physics_process(_delta: float) -> void:
+	var was_collided := move_and_slide()
+	if was_collided:
+		destroyed.emit()
+		queue_free()
 
 
 func process_acceleration(delta: float) -> void:
@@ -46,3 +71,21 @@ func process_livetime(delta: float) -> void:
 	_livetime += delta
 	if _livetime > max_livetime:
 		destroyed.emit()
+
+func _apply_collision_mask() -> void:
+	collision_mask |= PROJECTILE_BORDER_LAYER
+	
+	if collide_player:
+		collision_layer |= ENEMY_PROJECTILE_LAYER
+		collision_mask |= PLAYER_LAYER
+	else:
+		collision_layer &= ~ENEMY_PROJECTILE_LAYER
+		collision_mask &= ~PLAYER_LAYER
+	
+	if collide_enemies:
+		collision_layer |= PLAYER_PROJECTILE_LAYER
+		collision_mask |= ENEMY_LAYER
+	else:
+		collision_layer &= ~PLAYER_PROJECTILE_LAYER
+		collision_mask &= ~ENEMY_LAYER
+