feat: implement weapon system, loadout manager, and specialized projectile behaviors with associated assets
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DottsGit
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extends BaseProjectileWeapon
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class_name RocketSwarm
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var is_targeting: bool = false
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var homing_target_pos: Vector3 = Vector3.ZERO
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var targeting_laser: MeshInstance3D
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func _init() -> void:
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weapon_name = "Rocket Swarm"
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fire_rate = 1.0 # 1 click fires all 8
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max_ammo = 4 # 4 swarms
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reload_time = 3.0
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base_damage = 20.0 # Per mini rocket
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min_damage = 20.0
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falloff_start = 0.0
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max_range = 300.0
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automatic = false
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spread_angle = 0.15 # Wide spread out of the barrel
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projectile_speed = 25.0 # Slower so they have time to home
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func _build_model() -> void:
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position = Vector3(0.4, -0.4, -0.6)
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var mat_box = StandardMaterial3D.new()
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mat_box.albedo_color = Color(0.2, 0.4, 0.5)
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# Box launcher
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var body = MeshInstance3D.new()
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var b_mesh = BoxMesh.new()
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b_mesh.size = Vector3(0.2, 0.2, 0.4)
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b_mesh.material = mat_box
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body.mesh = b_mesh
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model_root.add_child(body)
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# Laser
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targeting_laser = MeshInstance3D.new()
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var l_mesh = CylinderMesh.new()
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l_mesh.top_radius = 0.02 # Make it thicker and more visible
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l_mesh.bottom_radius = 0.02
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l_mesh.height = 300.0
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var l_mat = StandardMaterial3D.new()
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l_mat.albedo_color = Color(1.0, 0.0, 0.0, 1.0)
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l_mat.emission_enabled = true
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l_mat.emission = Color(2.0, 0.0, 0.0) # Bright red
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l_mesh.material = l_mat
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targeting_laser.mesh = l_mesh
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targeting_laser.rotation.x = deg_to_rad(90)
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targeting_laser.position = Vector3(0, 0, -150.0)
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targeting_laser.visible = false
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model_root.add_child(targeting_laser)
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# Audio
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fire_sound = AudioStreamPlayer3D.new()
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fire_sound.stream = load("res://assets/sounds/swarm_fire.wav")
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model_root.add_child(fire_sound)
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reload_sound = AudioStreamPlayer3D.new()
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reload_sound.stream = load("res://assets/sounds/shotgun_reload.wav") # Reusing
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model_root.add_child(reload_sound)
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func _process(delta: float) -> void:
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super._process(delta)
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if camera:
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is_targeting = Input.is_action_pressed("fire_alt")
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targeting_laser.visible = is_targeting
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if is_targeting:
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var space_state = get_world_3d().direct_space_state
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var origin = camera.global_position
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var target = origin - camera.global_transform.basis.z * 300.0
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var query = PhysicsRayQueryParameters3D.create(origin, target)
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if player:
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query.exclude = [player.get_rid()]
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var result = space_state.intersect_ray(query)
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if result:
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homing_target_pos = result.position
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# Shrink laser to hit point
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var dist = origin.distance_to(result.position)
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(targeting_laser.mesh as CylinderMesh).height = dist
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targeting_laser.position.z = -dist / 2.0
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else:
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homing_target_pos = target
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(targeting_laser.mesh as CylinderMesh).height = 300.0
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targeting_laser.position.z = -150.0
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func unequip() -> void:
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is_targeting = false
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targeting_laser.visible = false
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# Override fire to shoot 8 rockets at once
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func _fire() -> void:
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if current_ammo <= 0 and not reloading:
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_start_reload()
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return
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if not camera: return
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current_ammo -= 1
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fire_cooldown = fire_rate
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if fire_sound:
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fire_sound.play()
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if muzzle_flash:
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muzzle_flash.light_energy = 2.0
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var tween = create_tween()
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tween.tween_property(muzzle_flash, "light_energy", 0.0, 0.1)
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var origin = camera.global_position
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var base_dir = -camera.global_transform.basis.z
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for i in range(8):
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# Calculate spread
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var right = camera.global_transform.basis.x
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var up = camera.global_transform.basis.y
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var x_spread = randf_range(-1.0, 1.0) * spread_angle
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var y_spread = randf_range(-1.0, 1.0) * spread_angle
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var fire_dir = (base_dir + right * x_spread + up * y_spread).normalized()
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_spawn_custom_projectile(origin, fire_dir)
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func _spawn_custom_projectile(origin: Vector3, fire_dir: Vector3) -> void:
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var proj = load("res://weapons/homing_projectile.gd").new()
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# Mesh
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var mesh_instance = MeshInstance3D.new()
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var p_mesh = CylinderMesh.new()
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p_mesh.top_radius = 0.0
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p_mesh.bottom_radius = 0.02
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p_mesh.height = 0.1
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var mat = StandardMaterial3D.new()
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mat.albedo_color = Color(0.8, 0.8, 0.1) # Yellow mini rocket
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p_mesh.material = mat
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mesh_instance.mesh = p_mesh
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mesh_instance.rotation.x = deg_to_rad(-90)
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proj.add_child(mesh_instance)
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# Rotation
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var up_vec = Vector3.UP
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if abs(fire_dir.dot(up_vec)) > 0.99:
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up_vec = Vector3.RIGHT
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proj.transform.basis = Basis.looking_at(fire_dir, up_vec)
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# Logic
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proj.weapon_source = self
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proj.turn_speed = 12.0 # Faster turn radius so they can aggressively home in
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proj.position = origin # Start at origin to spread outward around camera
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proj.logical_source = origin
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proj.velocity = fire_dir * projectile_speed
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proj.damage = base_damage
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proj.min_damage = min_damage
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proj.falloff_start = falloff_start
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proj.max_range = max_range
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proj.drop_gravity = 0.0
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proj.owner_player = player
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# Explosive stats
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proj.explosion_radius = 3.0 # Tiny AoE effect
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proj.explosion_knockback = 5.0
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proj.can_self_damage = false
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get_tree().current_scene.add_child(proj)
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