SimulationFabric.hpp

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#pragma once
 
#include <memory>
 
#include "Creeper.hpp"
#include "FieldParams.hpp"
#include "Simulation.hpp"
#include "Steve.hpp"
class SimulationFabric {
  std::shared_ptr<FieldParams> fieldParams_;
  std::shared_ptr<CreepersParams> CreepersParams_;
  std::shared_ptr<StevesParams> StevesParams_;
 
 public:
  SimulationFabric() = default;
  SimulationFabric& setFieldParams(const Rectangle& bounds, const std::function<double(Point p1, Point p2)>& distanceFunc) {
    fieldParams_ = std::make_shared<FieldParams>(bounds, distanceFunc);
    return *this;
  }
  decltype(fieldParams_) getFieldParams() {
    if (!fieldParams_) throw std::invalid_argument("FieldParams_ is not set");
    return fieldParams_;
  }
  SimulationFabric& setCreeperParams(double moveRadius = 10, double explodeRadius = 10, uint32_t count = 0) {
    if (!fieldParams_) {
      throw std::invalid_argument("fieldParams_ is not set");
    }
    CreepersParams_ = std::make_shared<CreepersParams>(moveRadius, explodeRadius, fieldParams_, count);
    return *this;
  }
  decltype(CreepersParams_) getCreepersParams_() {
    if (!CreepersParams_) throw std::invalid_argument("CreepersParams_ is not set");
    return CreepersParams_;
  }
  SimulationFabric& setSteveParams(double moveRadius = 10, uint32_t count = 0) {
    if (!fieldParams_) {
      throw std::invalid_argument("fieldParams_ is not set");
    }
    StevesParams_ = std::make_shared<StevesParams>(moveRadius, fieldParams_, count);
    return *this;
  }
 
  decltype(StevesParams_) getStevesParams_() {
    if (!StevesParams_) throw std::invalid_argument("StevesParams_ is not set");
    return StevesParams_;
  }
 
  SimulationFabric& setBedrock(const Rectangle& bedrock) {
    const auto upBound = fieldParams_->getBounds().rightUpBound;
    const auto downBound = fieldParams_->getBounds().leftDownBound;
    if (bedrock.rightUpBound.x > upBound.x || bedrock.rightUpBound.y > upBound.y ||
        bedrock.leftDownBound.x < downBound.x || bedrock.leftDownBound.y < downBound.y) {
      LOG(WARNING) << "Bedrock is out of field bounds!";
        }
    fieldParams_->setBedrock(bedrock);
    return *this;
  }
 
  Simulation build() {
    if (!CreepersParams_) setCreeperParams();
    if (!StevesParams_) setSteveParams();
    return Simulation(fieldParams_, CreepersParams_, StevesParams_);
  }
};