81 lines
2.1 KiB
C++
81 lines
2.1 KiB
C++
#pragma once
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#include <unordered_map>
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#include <string>
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class IBlackboardField
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{
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public:
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virtual ~IBlackboardField() = default;
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};
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//BlackboardField does not take ownership of pointers whatsoever!
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template<typename T>
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class BlackboardField final : public IBlackboardField
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{
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public:
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explicit BlackboardField(T data) : m_Data(data) {
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}
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T GetData() { return m_Data; };
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void SetData(T data) { m_Data = data; }
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private:
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T m_Data;
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};
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class Blackboard final
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{
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public:
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Blackboard() = default;
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~Blackboard() {
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for (const auto& el : m_BlackboardData)
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delete el.second;
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m_BlackboardData.clear();
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}
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Blackboard(const Blackboard& other) = delete;
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Blackboard& operator=(const Blackboard& other) = delete;
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Blackboard(Blackboard&& other) = delete;
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Blackboard& operator=(Blackboard&& other) = delete;
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//Add data to the blackboard
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template<typename T> bool AddData(const std::string& name, T data) {
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auto it = m_BlackboardData.find(name);
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if (it == m_BlackboardData.end()) {
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m_BlackboardData[name] = new BlackboardField<T>(data);
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return true;
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}
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printf("WARNING: Data '%s' of type '%s' already in Blackboard \n", name.c_str(), typeid(T).name());
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return false;
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}
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//Change the data of the blackboard
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template<typename T> bool ChangeData(const std::string& name, T data) {
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auto it = m_BlackboardData.find(name);
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if (it != m_BlackboardData.end()) {
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BlackboardField<T>* p = dynamic_cast<BlackboardField<T>*>(m_BlackboardData[name]);
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if (p) {
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p->SetData(data);
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return true;
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}
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}
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printf("WARNING: Data '%s' of type '%s' not found in Blackboard \n", name.c_str(), typeid(T).name());
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return false;
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}
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//Get the data from the blackboard
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template<typename T> bool GetData(const std::string& name, T& data) {
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BlackboardField<T>* p = dynamic_cast<BlackboardField<T>*>(m_BlackboardData[name]);
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if (p != nullptr) {
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data = p->GetData();
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return true;
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}
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printf("WARNING: Data '%s' of type '%s' not found in Blackboard \n", name.c_str(), typeid(T).name());
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return false;
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}
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private:
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std::unordered_map<std::string, IBlackboardField*> m_BlackboardData;
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};
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