95 friend class EngineContext;

96 enum class BindingType { Key, Mouse };

97

98 struct CompiledBinding {

99 BindingType type = BindingType::Key;

100 KeyCode key = KeyCode::Unknown;

101 MouseButton mouse = MouseButton::Count;

102 };

103

104 struct CompiledAction {

105 std::vector<CompiledBinding> bindings;

106 };

107

108 struct CompiledAxis {

109 std::vector<CompiledBinding> negative;

110 std::vector<CompiledBinding> positive;

111 };

112

113 Input();

114 ~Input();

115

116 Input(const Input&) = delete;

117 Input& operator=(const Input&) = delete;

118 Input(Input&&) = delete;

119 Input& operator=(Input&&) = delete;

120

121 // 解析配置键名 → 编译后绑定；失败返回 false 并打 WARN

122 bool compileBinding(const std::string& name, CompiledBinding& out) const;

123 static KeyCode parseKeyCode(const std::string& name);

124 static MouseButton parseMouseButton(const std::string& name);

125 static std::string normalizeKeyName(const std::string& name);

126

127 bool isBindingDown(const CompiledBinding& b) const;

128 bool isBindingPressed(const CompiledBinding& b) const;

129 bool isBindingReleased(const CompiledBinding& b) const;

130

131 bool anyBindingDown(const std::vector<CompiledBinding>& bindings) const;

132 bool anyBindingPressed(const std::vector<CompiledBinding>& bindings) const;

133 bool anyBindingReleased(const std::vector<CompiledBinding>& bindings) const;

134

135 // 底层状态

136 std::array<bool, static_cast<int>(KeyCode::Count)> m_currentKeys{};

137 std::array<bool, static_cast<int>(KeyCode::Count)> m_previousKeys{};

138 std::array<bool, static_cast<int>(MouseButton::Count)> m_currentMouseButtons{};

139 std::array<bool, static_cast<int>(MouseButton::Count)> m_previousMouseButtons{};

140 Vector2 m_mouseScroll{ 0.0f, 0.0f };

141 Vector2 m_injectedMousePosition{ 0.0f, 0.0f };

142 bool m_hasInjectedMousePosition = false;

143

144 // 预编译映射

145 std::unordered_map<std::string, CompiledAction> m_actions;

146 std::unordered_map<std::string, CompiledAxis> m_axes;

147 bool m_mappingsReady = false;

148 };

149}