feat: started work on enemy rifleman

modules/wave_survival/enemies/enemy_rifleman.cpp

@@ -0,0 +1,26 @@
+#include "enemy_rifleman.h"
+
+void EnemyRifleman::_bind_methods() {
+}
+
+void EnemyRifleman::on_child_entered() {
+}
+
+void EnemyRifleman::ready() {
+}
+
+void EnemyRifleman::_notification(int what) {
+	if (Engine::get_singleton()->is_editor_hint()) {
+		return;
+	}
+	switch (what) {
+		default:
+			return;
+		case NOTIFICATION_ENTER_TREE:
+			enter_tree();
+			return;
+		case NOTIFICATION_READY:
+			ready();
+			return;
+	}
+}

modules/wave_survival/enemies/enemy_rifleman.h

@@ -2,10 +2,55 @@
 #define ENEMY_RIFLEMAN_H
 
 #include "wave_survival/enemy_body.h"
+#include "wave_survival/state.h"
+class AnimationPlayer;
+class NavigationAgent3D;
 
 class EnemyRifleman : public EnemyBody {
 	GDCLASS(EnemyRifleman, EnemyBody);
 	static void _bind_methods();
+	void on_child_entered();
+	void enter_tree();
+	void ready();
+
+protected:
+	void _notification(int what);
+};
+
+/* ============================== STATES ============================== */
+
+class RiflemanState : public State {
+	GDCLASS(RiflemanState, State);
+	static void _bind_methods();
+
+public:
+	virtual void set_target(Node *target) override;
+	EnemyRifleman *get_target() const;
+	NpcUnit *get_unit() const;
+	NavigationAgent3D *get_agent() const;
+	AnimationPlayer *get_anim() const;
+
+private:
+	EnemyRifleman *target{ nullptr };
+};
+
+class RiflemanPatrolState : public RiflemanState {
+	GDCLASS(RiflemanPatrolState, RiflemanState);
+	static void _bind_methods();
+
+public:
+	virtual void enter_state() override;
+	virtual void process(double delta) override;
+};
+
+class RiflemanSeekState : public RiflemanState {
+	GDCLASS(RiflemanSeekState, RiflemanState);
+	static void _bind_methods();
+};
+
+class RiflemanFireState : public RiflemanState {
+	GDCLASS(RiflemanFireState, RiflemanState);
+	static void _bind_methods();
 };
 
 #endif // !ENEMY_RIFLEMAN_H