save code

2025-11-28 18:10:23 +08:00
commit fee064c3f0
49 changed files with 64353 additions and 0 deletions
@@ -0,0 +1,68 @@
+extends RigidBody3D
+
+@export var speed: float = 10.0
+@export var muzzle_prefab: PackedScene
+@export var impact_prefab: PackedScene
+@export var delay_trails_start: float = 0.1
+@export var trails: Array[GPUTrail3D]
+
+var direction: Vector3 = Vector3.FORWARD
+var fire_point_position: Vector3
+
+func set_fire_point(fp_position: Vector3):
+	fire_point_position = fp_position
+	
+func _ready():
+	delay_trails()
+	spawn_muzzle()
+	contact_monitor = true
+	max_contacts_reported = 1
+
+func _integrate_forces(state):
+	linear_velocity = direction * speed
+	
+	var collision = state.get_contact_count()
+	if collision > 0:
+		var contact = state.get_contact_collider_position(0)
+		var normal = state.get_contact_local_normal(0)
+		spawn_impact(contact, normal)
+		queue_free()
+
+func spawn_muzzle():
+	if muzzle_prefab:
+		var muzzle_instance = muzzle_prefab.instantiate()
+		call_deferred("add_child", muzzle_instance)
+		await get_tree().create_timer(0.001).timeout
+		muzzle_instance.global_transform.origin = fire_point_position
+		muzzle_instance.play_particles = true
+		
+		await get_tree().create_timer(3.0).timeout
+		if is_instance_valid(muzzle_instance):
+			muzzle_instance.queue_free()
+
+func spawn_impact(contact_point: Vector3 = Vector3.ZERO, contact_normal: Vector3 = Vector3.ZERO):
+	if impact_prefab:
+		var impact_instance = impact_prefab.instantiate()
+		get_tree().current_scene.add_child(impact_instance)
+		impact_instance.play_particles = true
+		
+		impact_instance.global_transform.origin = contact_point
+		impact_instance.look_at(contact_point + contact_normal, Vector3.UP)
+		
+		await get_tree().create_timer(3.0).timeout
+		if is_instance_valid(impact_instance):
+			impact_instance.queue_free()
+			
+func delay_trails():
+	if trails.is_empty():
+		return
+	
+	for trail in trails:
+		if is_instance_valid(trail):
+			trail.speed_scale = 0  # Stop movement initially, avoids glitches
+
+	await get_tree().create_timer(delay_trails_start).timeout
+
+	for trail in trails:
+		if is_instance_valid(trail):
+			trail.speed_scale = 1  # Resume movement