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

weapons/mortar.gd

@@ -0,0 +1,82 @@
+extends BaseProjectileWeapon
+class_name Mortar
+
+func _init() -> void:
+	weapon_name = "Mortar"
+	fire_rate = 1.5 # Slow
+	max_ammo = 1
+	reload_time = 3.0 # Extremely long
+	base_damage = 200.0 # Huge damage
+	min_damage = 20.0
+	falloff_start = 0.0
+	max_range = 500.0
+	automatic = false
+	spread_angle = 0.0
+	
+	projectile_speed = 25.0 # Very slow
+	projectile_gravity = 15.0 # Heavy drop
+
+func _build_model() -> void:
+	position = Vector3(0.3, -0.4, -0.5)
+	
+	var mat_olive = StandardMaterial3D.new()
+	mat_olive.albedo_color = Color(0.2, 0.3, 0.1)
+	
+	# Thick short tube
+	var body = MeshInstance3D.new()
+	var b_mesh = CylinderMesh.new()
+	b_mesh.top_radius = 0.12
+	b_mesh.bottom_radius = 0.12
+	b_mesh.height = 0.5
+	b_mesh.material = mat_olive
+	body.mesh = b_mesh
+	body.rotation.x = deg_to_rad(90)
+	model_root.add_child(body)
+	
+	# Audio
+	fire_sound = AudioStreamPlayer3D.new()
+	fire_sound.stream = load("res://assets/sounds/mortar_fire.wav")
+	model_root.add_child(fire_sound)
+	
+	reload_sound = AudioStreamPlayer3D.new()
+	reload_sound.stream = load("res://assets/sounds/shotgun_reload.wav") # Reusing
+	model_root.add_child(reload_sound)
+
+func _spawn_custom_projectile(origin: Vector3, fire_dir: Vector3) -> void:
+	var proj = load("res://weapons/bouncing_projectile.gd").new()
+	
+	# Mesh
+	var mesh_instance = MeshInstance3D.new()
+	var p_mesh = SphereMesh.new()
+	p_mesh.radius = 0.1
+	p_mesh.height = 0.2
+	var mat = StandardMaterial3D.new()
+	mat.albedo_color = Color(0.1, 0.1, 0.1) # Black bomb
+	p_mesh.material = mat
+	mesh_instance.mesh = p_mesh
+	proj.add_child(mesh_instance)
+	
+	# Logic
+	proj.position = origin + fire_dir * 0.2
+	proj.logical_source = origin
+	proj.velocity = fire_dir * projectile_speed
+	proj.damage = base_damage
+	proj.min_damage = min_damage
+	proj.falloff_start = falloff_start
+	proj.max_range = max_range
+	proj.drop_gravity = projectile_gravity
+	proj.owner_player = player
+	
+	# Mortar Bouncing logic
+	proj.fuse_time = 3.0 # Explodes 3 seconds after launch if it bounces
+	proj.impact_detonate_time = 2.0 # If flying > 2s, explode on impact instead
+	proj.bounciness = 0.4 # Heavy, loses momentum on bounce
+	
+	# Explosive stats
+	proj.explosion_radius = 12.0 # Very large AoE
+	proj.explosion_knockback = 60.0 # Massive knockback
+	proj.falloff_curve = 2.0 # Steep dropoff: "Should be an instant kill in closest 50%" 
+	# (0-50% = dist<6. 6/12 = 0.5. 1.0 - 0.5^2 = 0.75 multiplier. 200 * 0.75 = 150 damage -> 1 shot kill)
+	proj.can_self_damage = true # Can self damage
+	
+	get_tree().current_scene.add_child(proj)