1 files changed, 129 insertions, 0 deletions
diff --git a/core/config/number.hh b/core/config/number.hh
new file mode 100644
index 0000000..9907993
--- /dev/null
+++ b/core/config/number.hh
@@ -0,0 +1,129 @@
+#ifndef CORE_CONFIG_NUMBER_HH
+#define CORE_CONFIG_NUMBER_HH 1
+#pragma once
+
+#include "core/config/ivalue.hh"
+#include "core/math/concepts.hh"
+
+namespace config
+{
+template<math::Arithmetic T>
+class Number : public IValue {
+public:
+    explicit Number(T default_value = T(0));
+    explicit Number(T default_value, T min_value, T max_value);
+    virtual ~Number(void) = default;
+
+    virtual void set(const char* value) override;
+    virtual const char* get(void) const override;
+
+    T get_value(void) const;
+    void set_value(T value);
+
+    T get_min_value(void) const;
+    T get_max_value(void) const;
+    void set_limits(T min_value, T max_value);
+
+private:
+    T m_value;
+    T m_min_value;
+    T m_max_value;
+    std::string m_string;
+};
+} // namespace config
+
+namespace config
+{
+class Int final : public Number<int> {
+public:
+    using Number<int>::Number;
+};
+
+class Float final : public Number<float> {
+public:
+    using Number<float>::Number;
+};
+
+class Unsigned final : public Number<unsigned int> {
+public:
+    using Number<unsigned int>::Number;
+};
+
+class Unsigned64 final : public Number<std::uint64_t> {
+public:
+    using Number<std::uint64_t>::Number;
+};
+
+class SizeType final : public Number<std::size_t> {
+public:
+    using Number<std::size_t>::Number;
+};
+} // namespace config
+
+template<math::Arithmetic T>
+inline config::Number<T>::Number(T default_value)
+{
+    m_value = default_value;
+    m_min_value = std::numeric_limits<T>::lowest();
+    m_max_value = std::numeric_limits<T>::max();
+    m_string = std::to_string(default_value);
+}
+
+template<math::Arithmetic T>
+inline config::Number<T>::Number(T default_value, T min_value, T max_value)
+{
+    m_value = default_value;
+    m_min_value = min_value;
+    m_max_value = max_value;
+    m_string = std::to_string(default_value);
+}
+
+template<math::Arithmetic T>
+inline void config::Number<T>::set(const char* value)
+{
+    std::istringstream(value) >> m_value;
+    m_value = std::clamp(m_value, m_min_value, m_max_value);
+    m_string = std::to_string(m_value);
+}
+
+template<math::Arithmetic T>
+inline const char* config::Number<T>::get(void) const
+{
+    return m_string.c_str();
+}
+
+template<math::Arithmetic T>
+inline T config::Number<T>::get_value(void) const
+{
+    return m_value;
+}
+
+template<math::Arithmetic T>
+inline void config::Number<T>::set_value(T value)
+{
+    m_value = std::clamp(value, m_min_value, m_max_value);
+    m_string = std::to_string(m_value);
+}
+
+template<math::Arithmetic T>
+inline T config::Number<T>::get_min_value(void) const
+{
+    return m_min_value;
+}
+
+template<math::Arithmetic T>
+inline T config::Number<T>::get_max_value(void) const
+{
+    return m_max_value;
+}
+
+template<math::Arithmetic T>
+inline void config::Number<T>::set_limits(T min_value, T max_value)
+{
+    m_min_value = min_value;
+    m_max_value = max_value;
+    m_value = std::clamp(m_value, m_min_value, m_max_value);
+    m_string = std::to_string(m_value);
+}
+
+#endif // CORE_CONFIG_NUMBER_HH