Lsystem.h

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// MIT License
//
// Copyright (c) 2020 Ian Parberry
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE SOFTWARE.

#pragma once

#include "Random.h"
#include "Includes.h"

// class LProduction

#pragma region LProduction


class LProduction{
  public:
    char m_chLHS = '\0'; 
    std::wstring m_wstrRHS; 
    float m_fProb; 

    LProduction(char lhs, const std::wstring rhs, float fProb=1); 
}; //LProduction

#pragma endregion LProduction

// class LSystem

#pragma region LSystem


class LSystem{
  private: 
    CRandom m_cRandom; 

    std::wstring m_wstrRoot; 

    std::map<wchar_t, std::vector<LProduction>> m_mapRules; 
    std::wstring m_wstrRuleString; 

    std::wstring m_wstrBuffer[2]; 
    std::wstring* m_pResult = m_wstrBuffer; 

    bool m_bStochastic = false; 
    UINT m_nGenerations = 0; 

  public:
    void SetRoot(const std::wstring& omega); 
    void AddRule(const LProduction& rule); 

    void Clear(); 
    void Generate(const UINT n); 

    const std::wstring& GetString() const; 
    const std::wstring& GetRuleString() const; 
    const UINT GetGenerations() const; 

    const bool IsStochastic() const; 
}; //LSystem

#pragma endregion LSystem