feat: initialized template and wrote first gameplay code

modules/wave_survival/weapon_base.cpp

@@ -0,0 +1,39 @@
+#include "weapon_base.h"
+#include "macros.h"
+#include "player_camera.h"
+#include "scene/animation/animation_player.h"
+
+void WeaponBase::_bind_methods() {
+	BIND_HPROPERTY(Variant::OBJECT, anim, PROPERTY_HINT_NODE_TYPE, AnimationPlayer::get_class_static());
+}
+
+void WeaponBase::ready() {
+	this->camera = cast_to<PlayerCamera>(get_node(NodePath("%PlayerCamera")));
+	if (this->anim) {
+		this->anim->play("RESET");
+	}
+}
+
+void WeaponBase::_notification(int what) {
+	if (Engine::get_singleton()->is_editor_hint()) {
+		return;
+	}
+	switch (what) {
+		default:
+			return;
+		case NOTIFICATION_READY:
+			ready();
+	}
+}
+
+void WeaponBase::set_anim(AnimationPlayer *anim) {
+	this->anim = anim;
+}
+
+AnimationPlayer *WeaponBase::get_anim() const {
+	return this->anim;
+}
+
+PlayerCamera *WeaponBase::get_camera() const {
+	return this->camera;
+}