Bullets Colliding and Disappearing

src/Bullet.cpp

@@ -1,4 +1,5 @@
 #include "Bullet.h"
+#include <godot_cpp/classes/timer.hpp>
 
 using namespace godot;
 
@@ -6,17 +7,40 @@ namespace blitz {
 
 static constexpr float BULLET_SPEED = 40.0f;
 
-void Bullet::_bind_methods() {}
+void Bullet::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("_on_timer_timeout"), &Bullet::_on_timer_timeout);
+}
 
 Bullet::Bullet() {}
 
 Bullet::~Bullet() {}
 
-void Bullet::_ready() {}
+void Bullet::_ready() {
+	m_Particles = Object::cast_to<GPUParticles3D>(find_child("GPUParticles3D"));
+	DEV_ASSERT(m_Particles);
+	m_Ray = Object::cast_to<RayCast3D>(find_child("RayCast3D"));
+	DEV_ASSERT(m_Ray);
+	m_Mesh = Object::cast_to<MeshInstance3D>(find_child("MeshInstance3D"));
+	DEV_ASSERT(m_Mesh);
+}
 
 void Bullet::_physics_process(float a_Delta) {
 	Vector3 movement = Vector3(0, 0, -BULLET_SPEED) * a_Delta;
 	set_position(get_transform().xform(movement));
+
+	godot::Timer* timer = memnew(godot::Timer);
+	add_child(timer);
+	timer->connect("timeout", callable_mp(this, &Bullet::_on_timer_timeout));
+	if (m_Ray->is_colliding()) {
+		m_Mesh->set_visible(false);
+		m_Particles->set_emitting(true);
+		timer->set_wait_time(1.0);
+		timer->start();
+	}
+}
+
+void Bullet::_on_timer_timeout() {
+	queue_free();
 }
 
 }  // namespace blitz

src/Bullet.h

@@ -1,6 +1,9 @@
 #pragma once
 
+#include <godot_cpp/classes/gpu_particles3d.hpp>
+#include <godot_cpp/classes/mesh_instance3d.hpp>
 #include <godot_cpp/classes/node3d.hpp>
+#include <godot_cpp/classes/ray_cast3d.hpp>
 
 namespace blitz {
 class Bullet : public godot::Node3D {
@@ -14,6 +17,13 @@ class Bullet : public godot::Node3D {
 
 	void _ready();
 	void _physics_process(float delta);
+
+  private:
+	godot::GPUParticles3D* m_Particles;
+	godot::RayCast3D* m_Ray;
+	godot::MeshInstance3D* m_Mesh;
+
+	void _on_timer_timeout();
 };
 
 }  // namespace blitz