AoC2023/Day 4/main.cpp

#pragma region Hidden Setup Stuff
#define OLC_PGE_APPLICATION
#include "olcPixelGameEngine.h"

using namespace olc;

enum Run{
	FILE1,
	FILE2
};

// Override base class with your custom functionality
class AoC2023 : public olc::PixelGameEngine
{
std::vector<std::string>lines;
bool waitForRender=false;

void wait(int pauseMs=0){
	waitForRender=true;
	while(waitForRender);
	std::this_thread::sleep_for(std::chrono::milliseconds(pauseMs));
}

#pragma endregion

const int DAY = 4;
Run runInput=FILE2;

void doStuff2(){
	while(true){ //lines is accessible as a global.
		int sum=0;
		std::vector<int>scratchcards;
		int scratchcardIndex=0;
		for(std::string&line:lines){
			if(scratchcards.size()<=scratchcardIndex){
				scratchcards.push_back(1);
			}else{
				scratchcards[scratchcardIndex]++;
			}
			sum++;
			std::vector<int>winningNumbersList;
			size_t colonPos=line.find(':')+1;
			std::string winningNumbers=line.substr(colonPos,line.find('|')-colonPos-1);
			while(winningNumbers.length()>0){
				std::string numb=winningNumbers.substr(0,3);
				int number=atoi(numb.c_str());
				winningNumbersList.push_back(number);
				winningNumbers=winningNumbers.substr(3);
			}
			std::string pickedNumbers=line.substr(line.find('|')+1);
			int score=0;
			int winningIndex=scratchcardIndex+1;
			
			while(pickedNumbers.length()>0){
				std::string numb=pickedNumbers.substr(0,3);
				int number=atoi(numb.c_str());
				if(std::find(winningNumbersList.begin(),winningNumbersList.end(),number)!=winningNumbersList.end()){
					for(int i=0;i<scratchcards[scratchcardIndex];i++){
						if(scratchcards.size()<=winningIndex){
							scratchcards.push_back(1);
						}else{
							scratchcards[winningIndex]++;
						}
						sum++;
					}
					winningIndex++;
				}
				pickedNumbers=pickedNumbers.substr(3);
			}
			scratchcardIndex++;
		}
		std::cout<<sum<<std::endl;
		break;
		//wait(0); //Wait for 0ms and render the screen (calls draw())
	}
}

void doStuff(){
	while(true){ //lines is accessible as a global.
		int sum=0;
		for(std::string&line:lines){
			std::vector<int>winningNumbersList;
			size_t colonPos=line.find(':')+1;
			std::string winningNumbers=line.substr(colonPos,line.find('|')-colonPos-1);
			while(winningNumbers.length()>0){
				std::string numb=winningNumbers.substr(0,3);
				int number=atoi(numb.c_str());
				winningNumbersList.push_back(number);
				winningNumbers=winningNumbers.substr(3);
			}
			std::string pickedNumbers=line.substr(line.find('|')+1);
			int score=0;
			while(pickedNumbers.length()>0){
				std::string numb=pickedNumbers.substr(0,3);
				int number=atoi(numb.c_str());
				if(std::find(winningNumbersList.begin(),winningNumbersList.end(),number)!=winningNumbersList.end()){
					if(score==0)score=1;else score*=2;
				}
				pickedNumbers=pickedNumbers.substr(3);
			}
			sum+=score;
		}
		std::cout<<sum<<std::endl;
		break;
		//wait(0); //Wait for 0ms and render the screen (calls draw())
	}
}

void draw(){ //Only use Sprites! If using decals, you must reference global variables!
	Clear(BLACK);
	int count=0;
	for(std::string&line:lines){
		DrawString({0,count*32},line,WHITE,4);
		count++;
	}
}

#pragma region Hidden Engine Stuff
public:
	AoC2023()
	{
		// Name your application
		std::string fileName="day"+std::to_string(DAY)+"_1.txt";
		if(runInput==FILE2){fileName="day"+std::to_string(DAY)+"_2.txt";}
		std::ifstream file(fileName);
		while(file.good()){
			std::string line;
			std::getline(file,line);
			lines.push_back(line);
		}

		sAppName = "Advent of Code 2023 - Day "+std::to_string(DAY);
	}

public:
	bool OnUserCreate() override
	{

		return true;
	}

	bool OnUserUpdate(float fElapsedTime) override
	{
		static std::thread aocSolver(&AoC2023::doStuff2,this);

		if(waitForRender){
			draw();
			waitForRender=false;
		}
		return true;
	}
};

int main()
{
	AoC2023 game;
	if (game.Construct(640, 480, 2, 2))
		game.Start();
	return 0;
}
#pragma endregion