feat: implemented recoil

modules/wave_survival/hitscan_muzzle.h

@@ -21,7 +21,7 @@ public:
 	int get_ray_count() const;
 
 private:
-	float spread{ 0.01f };
+	float spread{ 0.001f };
 	int damage{ 1 };
 	int ray_count{ 1 };
 

modules/wave_survival/player_camera.cpp

@@ -17,14 +17,20 @@ void PlayerCamera::update_fov() {
 	}
 }
 
+void PlayerCamera::ready() {
+	PlayerInput *input{ cast_to<PlayerInput>(get_node(NodePath("%PlayerInput"))) };
+	input->connect(PlayerInput::sig_look_input, callable_mp(this, &self_type::on_look_input));
+	this->base_fov = get_fov();
+}
+
 void PlayerCamera::_notification(int what) {
 	if (Engine::get_singleton()->is_editor_hint()) {
 		return;
 	}
-	if (what == NOTIFICATION_READY) {
-		PlayerInput *input{ cast_to<PlayerInput>(get_node(NodePath("%PlayerInput"))) };
-		input->connect(PlayerInput::sig_look_input, callable_mp(this, &self_type::on_look_input));
-		this->base_fov = get_fov();
+	switch (what) {
+		case NOTIFICATION_READY:
+			ready();
+			return;
 	}
 }
 
@@ -36,3 +42,9 @@ void PlayerCamera::set_fov_factor(float value) {
 float PlayerCamera::get_fov_factor() const {
 	return this->fov_factor;
 }
+
+void PlayerCamera::recoil(float r) {
+	GETSET(rotation, {
+		rotation.x = CLAMP(rotation.x + r, -Math::PI / 2.0, Math::PI / 2.0);
+	});
+}

modules/wave_survival/player_camera.h

@@ -8,6 +8,8 @@ class PlayerCamera : public Camera3D {
 	static void _bind_methods();
 	void on_look_input(Vector2 input);
 	void update_fov();
+	void ready();
+	void process(double delta);
 
 protected:
 	void _notification(int what);
@@ -16,6 +18,8 @@ public:
 	void set_fov_factor(float value);
 	float get_fov_factor() const;
 
+	void recoil(float r);
+
 private:
 	float base_fov{ 60.f };
 	float fov_factor{ 1.0f };

modules/wave_survival/weapons/rifle.cpp

@@ -88,7 +88,8 @@ void Rifle::ready() {
 void Rifle::process(double delta) {
 	String const current{ get_anim()->get_current_animation() };
 	bool run_requested{ this->run_requested() };
-	float const progress{ float(CLAMP(get_anim()->get_current_animation_position() / get_anim()->get_current_animation_length(), 0.0, 1.0)) };
+	double const animation_time{ get_anim()->get_current_animation_position() };
+	float const progress{ float(CLAMP(animation_time / get_anim()->get_current_animation_length(), 0.0, 1.0)) };
 	if (current == "hip_to_aim") {
 		get_camera()->set_fov_factor(Math::lerp(1.f, this->ads_factor, progress));
 	} else if (current == "aim_to_hip") {
@@ -112,6 +113,11 @@ void Rifle::process(double delta) {
 			stop_run_anim();
 		}
 	}
+
+	if (current == "fire_hip" || current == "fire_aim") {
+		double t{ animation_time / this->recoil_time };
+		get_camera()->recoil(Math::lerp((double)this->recoil_force, 0.0, CLAMP(t, 0.0, 1.0)) * delta);
+	}
 }
 
 void Rifle::_notification(int what) {
@@ -147,3 +153,19 @@ void Rifle::notify_selected() {
 bool Rifle::is_animating() const {
 	return !get_anim()->get_current_animation().is_empty() || !get_anim()->get_queue().is_empty();
 }
+
+void Rifle::set_ads_factor(float value) {
+	this->ads_factor = value;
+}
+
+float Rifle::get_ads_factor() const {
+	return this->ads_factor;
+}
+
+void Rifle::set_run_factor(float value) {
+	this->run_factor = value;
+}
+
+float Rifle::get_run_factor() const {
+	return this->run_factor;
+}

modules/wave_survival/weapons/rifle.h

@@ -30,6 +30,13 @@ public:
 	virtual void notify_selected() override;
 	bool is_animating() const;
 
+	void set_recoil_radians(float value);
+	float get_recoil_radians() const;
+	void set_ads_factor(float value);
+	float get_ads_factor() const;
+	void set_run_factor(float value);
+	float get_run_factor() const;
+
 private:
 	float ads_factor{ 0.5f };
 	float run_factor{ 1.5f };
@@ -37,6 +44,9 @@ private:
 	bool in_alt_mode{ false };
 	bool running{ false };
 
+	float recoil_force{ 3.f };
+	float recoil_time{ 0.05f };
+
 	HitscanMuzzle *muzzle{ nullptr };
 };
 

project/objects/weapons/rifle.tscn

@@ -20,8 +20,9 @@ bone_idx = 39
 
 [node name="HitscanMuzzle" type="HitscanMuzzle" parent="rifle/Character/Skeleton3D/BoneAttachment3D"]
 unique_name_in_owner = true
-transform = Transform3D(1, 0, 0, 0, 0.99999994, 0, 0, 0, 0.99999994, 2.746498e-26, 0, 0.059500493)
+transform = Transform3D(1, 0, 0, 0, 0.99999833, -0.0017453281, 0, 0.0017453281, 0.99999833, 1.4540284e-26, 0, 0.027612558)
 target_position = Vector3(0, 100, 0)
+spread = 0.003
 
 [node name="AnimationPlayer" parent="rifle" index="1"]
 playback_default_blend_time = 0.1