feat: implement plasma gun and rocket swarm mechanics along with various 3D asset imports

weapons/mortar.gd

@@ -17,22 +17,22 @@ func _init() -> void:
 	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)
-	
+	position = Vector3(0.5, -0.4, -0.8)
+
+	var model_scene = load("res://assets/weapons/mortar/source/scene.gltf")
+	if model_scene:
+		var model = model_scene.instantiate()
+		model_root.add_child(model)
+		model.scale = Vector3(0.0025, 0.0025, 0.0025)
+		model.rotation_degrees.y = -90
+		model.position.y -= 0.2
+		
+		# Aggressively strip any rogue nodes from the GLTF that could ruin the scene
+		for node in model.find_children("*", "", true, false):
+			if node is Light3D or node is Camera3D or node is WorldEnvironment or node is ReflectionProbe:
+				if node is Node3D: node.visible = false
+				node.queue_free()
+
 	# Audio
 	fire_sound = AudioStreamPlayer3D.new()
 	fire_sound.bus = "SFX"