feat: implement weapon system, loadout manager, and specialized projectile behaviors with associated assets

weapons/base_hitscan_weapon.gd

@@ -12,6 +12,9 @@ class_name BaseHitscanWeapon
 @export var automatic: bool = true
 @export var spread_angle: float = 0.01
 
+@export var penetration_count: int = 0
+@export var penetration_damage_penalty: float = 0.5
+
 var current_ammo: int = 30
 var reloading: bool = false
 var reload_timer: float = 0.0
@@ -125,14 +128,26 @@ func _shoot_hitscan() -> void:
 	if player:
 		query.exclude = [player.get_rid()]
 		
-	var result = space_state.intersect_ray(query)
-	if result:
+	var hits_remaining = penetration_count + 1
+	var current_damage_mult = 1.0
+	
+	while hits_remaining > 0:
+		var result = space_state.intersect_ray(query)
+		if not result:
+			break # Nothing else in the way
+			
 		var hit_dist = origin.distance_to(result.position)
-		var damage = base_damage
+		var damage = base_damage * current_damage_mult
 		
 		if hit_dist > falloff_start:
 			var falloff_factor = clampf((hit_dist - falloff_start) / (max_range - falloff_start), 0.0, 1.0)
-			damage = lerpf(base_damage, min_damage, falloff_factor)
+			damage = lerpf(base_damage * current_damage_mult, min_damage * current_damage_mult, falloff_factor)
 			
 		if result.collider.has_method("take_damage"):
 			result.collider.take_damage(damage, result.position, player)
+			
+		# Add this hit to exclude so next loop goes through it
+		query.exclude.append(result.rid)
+		
+		hits_remaining -= 1
+		current_damage_mult *= penetration_damage_penalty