feat: implement PlayerMovementController and grenade projectile system

movement/player_movement_controller.gd

@@ -49,6 +49,10 @@ var hit_marker: Control
 var _hit_marker_tween: Tween
 var reload_ring: Control
 
+var grenades: int = 2
+var is_holding_grenade: bool = false
+var trajectory_mesh: MultiMeshInstance3D
+
 # Grapple
 var grapple_rope: MeshInstance3D
 
@@ -97,6 +101,7 @@ func _ready() -> void:
 
 	_setup_audio()
 	_setup_grapple()
+	_setup_grenade_trajectory()
 	
 	if is_multiplayer_authority():
 		_damage_layer = CanvasLayer.new()
@@ -236,6 +241,24 @@ func _setup_grapple() -> void:
 	grapple_rope.visible = false
 	get_tree().current_scene.call_deferred("add_child", grapple_rope)
 
+func _setup_grenade_trajectory() -> void:
+	trajectory_mesh = MultiMeshInstance3D.new()
+	var mm = MultiMesh.new()
+	mm.transform_format = MultiMesh.TRANSFORM_3D
+	mm.instance_count = 60
+	trajectory_mesh.multimesh = mm
+	var dot_mesh = SphereMesh.new()
+	dot_mesh.radius = 0.05
+	dot_mesh.height = 0.1
+	var dot_mat = StandardMaterial3D.new()
+	dot_mat.albedo_color = Color(1.0, 1.0, 1.0, 0.5)
+	dot_mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
+	dot_mat.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
+	dot_mesh.material = dot_mat
+	trajectory_mesh.multimesh.mesh = dot_mesh
+	trajectory_mesh.visible = false
+	get_tree().current_scene.call_deferred("add_child", trajectory_mesh)
+
 var _last_hit_sound_time: int = 0
 
 func spawn_damage_number(amount: float, hit_pos: Vector3) -> void:
@@ -790,6 +813,12 @@ func _process(delta: float) -> void:
 			else:
 				reload_ring.progress = 0.0
 				
+	if is_multiplayer_authority() and not is_dead:
+		if is_holding_grenade and grenades > 0:
+			_draw_trajectory()
+		elif is_instance_valid(trajectory_mesh):
+			trajectory_mesh.visible = false
+		
 	if is_dead:
 		# Continuously follow the ragdoll torso
 		if is_instance_valid(ragdoll_instance) and is_instance_valid(camera):
@@ -1024,6 +1053,87 @@ func _input(event: InputEvent) -> void:
 			if event.is_pressed() and not event.is_echo():
 				_on_respawn_pressed()
 	
+	if not is_dead and Input.get_mouse_mode() == Input.MOUSE_MODE_CAPTURED:
+		if event.is_action_pressed("grenade") and grenades > 0:
+			is_holding_grenade = true
+		elif event.is_action_released("grenade") and is_holding_grenade:
+			is_holding_grenade = false
+			_throw_grenade()
+
+func _draw_trajectory() -> void:
+	if not camera or not trajectory_mesh: return
+	trajectory_mesh.visible = true
+	
+	var throw_speed = 20.0
+	var throw_up_speed = 5.0
+	var throw_vel = camera.global_transform.basis.z * -throw_speed + Vector3.UP * throw_up_speed + velocity
+	var gravity = 15.0 # Typical default
+	var current_pos = camera.global_position + camera.global_transform.basis.z * -0.5
+	var time_step = 0.05
+	var bounciness = 0.5
+	
+	var space_state = get_world_3d().direct_space_state
+	
+	for i in range(trajectory_mesh.multimesh.instance_count):
+		var t = Transform3D(Basis(), current_pos)
+		trajectory_mesh.multimesh.set_instance_transform(i, t)
+		
+		var next_vel = throw_vel
+		next_vel.y -= gravity * time_step
+		var next_pos = current_pos + throw_vel * time_step
+		
+		var query = PhysicsRayQueryParameters3D.create(current_pos, next_pos)
+		query.exclude = [get_rid()]
+		var hit = space_state.intersect_ray(query)
+		
+		if hit:
+			current_pos = hit.position + hit.normal * 0.05
+			throw_vel = next_vel.bounce(hit.normal) * bounciness
+		else:
+			current_pos = next_pos
+			throw_vel = next_vel
+
+func _throw_grenade() -> void:
+	if grenades <= 0: return
+	grenades -= 1
+	
+	var throw_speed = 20.0
+	var throw_up_speed = 5.0
+	var throw_vel = camera.global_transform.basis.z * -throw_speed + Vector3.UP * throw_up_speed + velocity
+	var spawn_pos = camera.global_position + camera.global_transform.basis.z * -0.5
+	
+	if multiplayer.has_multiplayer_peer() and multiplayer.multiplayer_peer is not OfflineMultiplayerPeer:
+		server_spawn_grenade.rpc_id(1, spawn_pos, throw_vel)
+	else:
+		_spawn_grenade_local(spawn_pos, throw_vel, 1)
+
+@rpc("any_peer", "call_local", "reliable")
+func server_spawn_grenade(pos: Vector3, vel: Vector3) -> void:
+	if not multiplayer.is_server(): return
+	var id = multiplayer.get_remote_sender_id()
+	client_spawn_grenade.rpc(pos, vel, id)
+
+@rpc("authority", "call_local", "reliable")
+func client_spawn_grenade(pos: Vector3, vel: Vector3, owner_id: int) -> void:
+	_spawn_grenade_local(pos, vel, owner_id)
+
+func _spawn_grenade_local(pos: Vector3, vel: Vector3, owner_id: int) -> void:
+	var g_scene = load("res://weapons/grenade_projectile.gd")
+	if not g_scene: return
+	var g = g_scene.new()
+	g.global_position = pos
+	g.velocity = vel
+	
+	var p = null
+	if owner_id == multiplayer.get_unique_id():
+		p = self
+	else:
+		var root = get_tree().current_scene
+		if root.has_node("Players/" + str(owner_id)):
+			p = root.get_node("Players/" + str(owner_id))
+	g.owner_player = p
+	get_tree().current_scene.add_child(g)
+
 func _on_respawn_pressed() -> void:
 	if death_screen:
 		death_screen.visible = false
@@ -1062,6 +1172,8 @@ func rpc_respawn(spawn_pos: Vector3) -> void:
 		health = max_health
 		shield = max_shield
 		time_since_last_damage = 0.0
+		grenades = 2
+		is_holding_grenade = false
 		
 		if is_instance_valid(ragdoll_instance):
 			if ragdoll_instance.has_meta("spring_arm"):

project.godot

@@ -86,6 +86,11 @@ interact={
 "events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":69,"physical_keycode":0,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
 ]
 }
+grenade={
+"deadzone": 0.0,
+"events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":71,"physical_keycode":0,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)
+]
+}
 reload={
 "deadzone": 0.0,
 "events": [Object(InputEventKey,"resource_local_to_scene":false,"resource_name":"","device":-1,"window_id":0,"alt_pressed":false,"shift_pressed":false,"ctrl_pressed":false,"meta_pressed":false,"pressed":false,"keycode":82,"physical_keycode":0,"key_label":0,"unicode":0,"location":0,"echo":false,"script":null)

weapons/grenade_projectile.gd

@@ -0,0 +1,76 @@
+extends BouncingProjectile
+class_name GrenadeProjectile
+
+func _ready() -> void:
+	super._ready()
+	fuse_time = 4.0
+	bounciness = 0.5
+	drop_gravity = 15.0
+	explosion_radius = 5.0
+	damage = 120.0
+	
+func _setup_effects() -> void:
+	# Audio
+	flight_sound = AudioStreamPlayer3D.new()
+	flight_sound.bus = "SFX"
+	flight_sound.stream = load("res://assets/sounds/rocket_flight.wav")
+	flight_sound.autoplay = true
+	if flight_sound.stream is AudioStreamWAV:
+		flight_sound.stream.loop_mode = AudioStreamWAV.LOOP_FORWARD
+	flight_sound.unit_size = 50.0
+	flight_sound.max_db = 6.0
+	flight_sound.volume_db = 0.0
+	add_child(flight_sound)
+	flight_sound.play()
+	
+	# Grenade Body
+	var body_mesh = MeshInstance3D.new()
+	var sphere = SphereMesh.new()
+	sphere.radius = 0.1
+	sphere.height = 0.2
+	var b_mat = StandardMaterial3D.new()
+	b_mat.albedo_color = Color(0.2, 0.4, 0.2) # Dark green
+	b_mat.roughness = 0.6
+	b_mat.metallic = 0.5
+	sphere.material = b_mat
+	body_mesh.mesh = sphere
+	add_child(body_mesh)
+	
+	# Smoke Trail (White translucent tail)
+	smoke_sys = GPUParticles3D.new()
+	var smoke_mat = ParticleProcessMaterial.new()
+	smoke_mat.direction = Vector3(0, 0, 1)
+	smoke_mat.spread = 5.0
+	smoke_mat.initial_velocity_min = 0.0
+	smoke_mat.initial_velocity_max = 0.5
+	smoke_mat.gravity = Vector3(0, 0.1, 0) # Less floaty
+	
+	var grad = Gradient.new()
+	grad.add_point(0.0, Color(1.0, 1.0, 1.0, 0.5))
+	grad.add_point(1.0, Color(1.0, 1.0, 1.0, 0.0))
+	var grad_tex = GradientTexture1D.new()
+	grad_tex.gradient = grad
+	smoke_mat.color_ramp = grad_tex
+	
+	var curve = Curve.new()
+	curve.add_point(Vector2(0.0, 0.5))
+	curve.add_point(Vector2(1.0, 1.5))
+	var curve_tex = CurveTexture.new()
+	curve_tex.curve = curve
+	smoke_mat.scale_curve = curve_tex
+	
+	var smoke_mesh = QuadMesh.new()
+	smoke_mesh.size = Vector2(0.2, 0.2)
+	var s_mat = StandardMaterial3D.new()
+	s_mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
+	s_mat.vertex_color_use_as_albedo = true
+	s_mat.albedo_texture = get_smoke_texture()
+	s_mat.billboard_mode = BaseMaterial3D.BILLBOARD_PARTICLES
+	s_mat.billboard_keep_scale = true
+	smoke_mesh.material = s_mat
+	smoke_sys.draw_pass_1 = smoke_mesh
+	smoke_sys.process_material = smoke_mat
+	smoke_sys.amount = 32
+	smoke_sys.lifetime = 1.0
+	smoke_sys.position = Vector3(0, 0, 0.0)
+	add_child(smoke_sys)

weapons/grenade_projectile.gd.uid

@@ -0,0 +1 @@
+uid://3m8quupertk6